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5 weeks agoMerge branches 'clk-microchip', 'clk-lookup' and 'clk-st' into clk-next
Stephen Boyd [Mon, 6 Oct 2025 18:00:12 +0000 (13:00 -0500)]
Merge branches 'clk-microchip', 'clk-lookup' and 'clk-st' into clk-next

 - Speed up clk_core_lookup() by using a hashtable

* clk-microchip:
  ARM: at91: remove default values for PMC_PLL_ACR
  clk: at91: add ACR in all PLL settings
  clk: at91: sam9x7: Add peripheral clock id for pmecc
  clk: at91: clk-master: Add check for divide by 3
  clk: at91: clk-sam9x60-pll: force write to PLL_UPDT register
  ARM: at91: pm: save and restore ACR during PLL disable/enable

* clk-lookup:
  clk: Use hashtable for global clk lookups
  clk: Sort include statements

* clk-st:
  dt-bindings: stm32: cosmetic fixes for STM32MP25 clock and reset bindings
  clk: stm32: introduce clocks for STM32MP21 platform
  dt-bindings: stm32: add STM32MP21 clocks and reset bindings

5 weeks agoMerge branches 'clk-scmi', 'clk-qcom' and 'clk-broadcom' into clk-next
Stephen Boyd [Mon, 6 Oct 2025 17:57:03 +0000 (12:57 -0500)]
Merge branches 'clk-scmi', 'clk-qcom' and 'clk-broadcom' into clk-next

* clk-scmi:
  clk: scmi: Add duty cycle ops only when duty cycle is supported

* clk-qcom: (27 commits)
  clk: qcom: gcc-sc8280xp: drop obsolete PCIe GDSC comment
  clk: qcom: tcsrcc-x1e80100: Set the bi_tcxo as parent to eDP refclk
  clk: qcom: dispcc-glymur: Constify 'struct qcom_cc_desc'
  clk: qcom: gcc: Add support for Global Clock controller found on MSM8937
  dt-bindings: clock: qcom: Add MSM8937 Global Clock Controller
  clk: qcom: Select the intended config in QCS_DISPCC_615
  clk: qcom: common: Fix NULL vs IS_ERR() check in qcom_cc_icc_register()
  clk: qcom: alpha-pll: convert from round_rate() to determine_rate()
  clk: qcom: milos: Constify 'struct qcom_cc_desc'
  clk: qcom: gcc: Add support for Global Clock Controller
  dt-bindings: clock: qcom: document the Glymur Global Clock Controller
  clk: qcom: clk-alpha-pll: Add support for Taycan EKO_T PLL
  clk: qcom: rpmh: Add support for Glymur rpmh clocks
  clk: qcom: Add TCSR clock driver for Glymur SoC
  dt-bindings: clock: qcom: Document the Glymur SoC TCSR Clock Controller
  dt-bindings: clock: qcom-rpmhcc: Add support for Glymur SoCs
  clk: qcom: dispcc-glymur: Add support for Display Clock Controller
  dt-bindings: clock: Add DISPCC and reset controller for GLYMUR SoC
  clk: qcom: gcc-sdm660: Add missing LPASS/CDSP vote clocks
  dt-bindings: clock: gcc-sdm660: Add LPASS/CDSP vote clocks/GDSCs
  ...

* clk-broadcom:
  clk: bcm: rpi: Maximize V3D clock
  clk: bcm: rpi: Turn firmware clock on/off when preparing/unpreparing
  clk: bcm: rpi: Add missing logs if firmware fails

5 weeks agoMerge branches 'clk-imx', 'clk-allwinner' and 'clk-ti' into clk-next
Stephen Boyd [Mon, 6 Oct 2025 17:56:54 +0000 (12:56 -0500)]
Merge branches 'clk-imx', 'clk-allwinner' and 'clk-ti' into clk-next

* clk-imx:
  clk: imx95-blk-ctl: Save/restore registers when RPM routines are called
  clk: imx95-blk-ctl: Save platform data in imx95_blk_ctl structure

* clk-allwinner:
  clk: sunxi-ng: add support for the A523/T527 MCU CCU
  clk: sunxi-ng: div: support power-of-two dividers
  clk: sunxi-ng: sun55i-a523-ccu: Add missing NPU module clock
  dt-bindings: clock: sun55i-a523-ccu: Add A523 MCU CCU clock controller
  dt-bindings: clock: sun55i-a523-ccu: Add missing NPU module clock
  clk: sunxi-ng: sun6i-rtc: Add A523 specifics

* clk-ti:
  clk: keystone: sci-clk: use devm_kmemdup_array()
  clk: ti: am33xx: keep WKUP_DEBUGSS_CLKCTRL enabled

5 weeks agoMerge branches 'clk-samsung', 'clk-tegra' and 'clk-amlogic' into clk-next
Stephen Boyd [Mon, 6 Oct 2025 17:56:46 +0000 (12:56 -0500)]
Merge branches 'clk-samsung', 'clk-tegra' and 'clk-amlogic' into clk-next

* clk-samsung:
  clk: s2mps11: add support for S2MPG10 PMIC clock
  dt-bindings: clock: samsung,s2mps11: add s2mpg10
  clk: samsung: exynos990: Add PERIC0 and PERIC1 clock support
  dt-bindings: clock: exynos990: Add PERIC0 and PERIC1 clock units
  clk: samsung: exynos990: Add missing USB clock registers to HSI0
  clk: samsung: exynos990: Add LHS_ACEL gate clock for HSI0 and update CLK_NR_TOP
  dt-bindings: clock: exynos990: Add LHS_ACEL clock ID for HSI0 block
  clk: samsung: artpec-8: Add initial clock support for ARTPEC-8 SoC
  clk: samsung: Add clock PLL support for ARTPEC-8 SoC
  dt-bindings: clock: Add ARTPEC-8 clock controller
  clk: samsung: exynos990: Add DPU_BUS and CMUREF mux/div and update CLKS_NR_TOP
  dt-bindings: clock: exynos990: Extend clocks IDs
  clk: samsung: exynos990: Replace bogus divs with fixed-factor clocks
  clk: samsung: exynos990: Fix CMU_TOP mux/div bit widths
  clk: samsung: exynos990: Use PLL_CON0 for PLL parent muxes
  clk: samsung: pll: convert from round_rate() to determine_rate()
  clk: samsung: cpu: convert from round_rate() to determine_rate()
  clk: samsung: fsd: Add clk id for PCLK and PLL in CAM_CSI block
  dt-bindings: clock: Add CAM_CSI clock macro for FSD

* clk-tegra:
  clk: tegra: dfll: Add CVB tables for Tegra114
  clk: tegra: Add DFLL DVCO reset control for Tegra114
  dt-bindings: arm: tegra: Add ASUS TF101G and SL101
  dt-bindings: reset: Add Tegra114 CAR header
  dt-bindings: arm: tegra: Add Xiaomi Mi Pad (A0101)
  dt-bindings: clock: tegra30: Add IDs for CSI pad clocks
  dt-bindings: display: tegra: Move avdd-dsi-csi-supply from VI to CSI
  dt-bindings: i2c: nvidia,tegra20-i2c: Document Tegra264 I2C

* clk-amlogic:
  clk: amlogic: fix recent code refactoring
  clk: amlogic: c3-peripherals: use helper for basic composite clocks
  clk: amlogic: align s4 and c3 pwm clock descriptions
  clk: amlogic: add composite clock helpers
  clk: amlogic: use the common pclk definition
  clk: amlogic: introduce a common pclk definition
  clk: amlogic: pclk explicitly use CLK_IGNORE_UNUSED
  clk: amlogic: drop CLK_SET_RATE_PARENT from peripheral clocks
  clk: amlogic: move PCLK definition to clkc-utils
  clk: amlogic: aoclk: use clkc-utils syscon probe
  clk: amlogic: use probe helper in mmio based controllers
  clk: amlogic: add probe helper for mmio based controllers
  clk: amlogic: drop meson-clkcee
  clk: amlogic: naming consistency alignment

5 weeks agoMerge branches 'clk-bindings', 'clk-cleanup', 'clk-renesas', 'clk-thead' and 'clk...
Stephen Boyd [Mon, 6 Oct 2025 17:56:23 +0000 (12:56 -0500)]
Merge branches 'clk-bindings', 'clk-cleanup', 'clk-renesas', 'clk-thead' and 'clk-spacemit' into clk-next

* clk-bindings:
  dt-bindings: clock: mediatek: Add power-domains property
  dt-bindings: clock: silabs,si5341: Add missing properties
  dt-bindings: clock: adi,axi-clkgen: add clock-output-names property
  dt-bindings: clock: Remove unused fujitsu,mb86s70-crg11 binding
  dt-bindings: clock: Convert silabs,si570 to DT schema
  dt-bindings: clock: Convert silabs,si5341 to DT schema
  dt-bindings: clock: Convert silabs,si514/544 to DT schema

* clk-cleanup:
  clk: tegra: do not overallocate memory for bpmp clocks
  clk: ep93xx: Use int type to store negative error codes
  dt-bindings: clock: st: flexgen: remove deprecated compatibles
  clk: st: flexgen: remove unused compatible
  clk: clk-axi-clkgen: remove unneeded semicolon
  clk: tegra: Remove redundant semicolons
  clk: npcm: select CONFIG_AUXILIARY_BUS
  clk: remove unneeded 'fast_io' parameter in regmap_config

* clk-renesas: (27 commits)
  clk: renesas: r9a09g05[67]: Reduce differences
  clk: renesas: r9a09g047: Add USB3.0 clocks/resets
  clk: renesas: cpg-mssr: Fix memory leak in cpg_mssr_reserved_init()
  clk: renesas: r9a09g056: Add clock and reset entries for I3C
  clk: renesas: r9a09g057: Add clock and reset entries for I3C
  dt-bindings: clock: renesas,r9a09g047-cpg: Add USB3.0 core clocks
  clk: renesas: r9a09g077: Add Ethernet Subsystem core and module clocks
  clk: renesas: rzv2h: Simplify polling condition in __rzv2h_cpg_assert()
  clk: renesas: rzv2h: Re-assert reset on deassert timeout
  clk: renesas: rzg2l: Re-assert reset on deassert timeout
  clk: renesas: rzg2l: Simplify rzg2l_cpg_assert() and rzg2l_cpg_deassert()
  dt-bindings: clock: renesas,r9a09g077/87: Add Ethernet clock IDs
  clk: renesas: r9a09g047: Add GPT clocks and resets
  clk: renesas: r9a09g077: Add module clocks for SCI1-SCI5
  clk: renesas: rzv2h: remove round_rate() in favor of determine_rate()
  clk: renesas: rzg2l: convert from round_rate() to determine_rate()
  clk: renesas: r9a07g04[34]: Use tabs instead of spaces
  clk: renesas: r9a07g043: Add MSTOP for RZ/G2UL
  clk: renesas: r9a07g044: Add MSTOP for RZ/G2L
  clk: renesas: r9a08g045: Add MSTOP for GPIO
  ...

* clk-thead:
  clk: thead: th1520-ap: set all AXI clocks to CLK_IS_CRITICAL
  clk: thead: support changing DPU pixel clock rate
  clk: thead: add support for enabling/disabling PLLs
  clk: thead: Correct parent for DPU pixel clocks
  clk: thead: th1520-ap: fix parent of padctrl0 clock
  clk: thead: th1520-ap: describe gate clocks with clk_gate

* clk-spacemit:
  clk: spacemit: fix i2s clock
  clk: spacemit: introduce pre-div for ddn clock
  dt-bindings: clock: spacemit: introduce i2s pre-clock to fix i2s clock
  clk: spacemit: ccu_pll: convert from round_rate() to determine_rate()
  clk: spacemit: ccu_mix: convert from round_rate() to determine_rate()
  clk: spacemit: ccu_ddn: convert from round_rate() to determine_rate()
  clk: spacemit: fix sspax_clk
  dt-bindings: clock: spacemit: CLK_SSPA_I2S_BCLK for SSPA

7 weeks agoclk: tegra: do not overallocate memory for bpmp clocks
Fedor Pchelkin [Sat, 26 Apr 2025 12:54:28 +0000 (15:54 +0300)]
clk: tegra: do not overallocate memory for bpmp clocks

struct tegra_bpmp::clocks is a pointer to a dynamically allocated array
of pointers to 'struct tegra_bpmp_clk'.

But the size of the allocated area is calculated like it is an array
containing actual 'struct tegra_bpmp_clk' objects - it's not true, there
are just pointers.

Found by Linux Verification Center (linuxtesting.org) with Svace static
analysis tool.

Fixes: 2db12b15c6f3 ("clk: tegra: Register clocks from root to leaf")
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: ep93xx: Use int type to store negative error codes
Qianfeng Rong [Sat, 30 Aug 2025 12:27:52 +0000 (20:27 +0800)]
clk: ep93xx: Use int type to store negative error codes

Change the 'ret' variable in ep93xx_uart_clock_init() from unsigned int to
int, as it needs to store either negative error codes or zero.

Storing the negative error codes in unsigned type, doesn't cause an issue
at runtime but can be confusing. Additionally, assigning negative error
codes to unsigned type may trigger a GCC warning when the -Wsign-conversion
flag is enabled.

No effect on runtime.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: s2mps11: add support for S2MPG10 PMIC clock
André Draszik [Wed, 30 Jul 2025 09:31:35 +0000 (10:31 +0100)]
clk: s2mps11: add support for S2MPG10 PMIC clock

Add support for Samsung's S2MPG10 PMIC clock, which is similar to the
existing PMIC clocks supported by this driver.

S2MPG10 has three clock outputs @ 32kHz: AP, peri1 and peri2.

Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agodt-bindings: clock: samsung,s2mps11: add s2mpg10
André Draszik [Wed, 30 Jul 2025 09:31:34 +0000 (10:31 +0100)]
dt-bindings: clock: samsung,s2mps11: add s2mpg10

The Samsung S2MPG10 clock controller is similar to the existing clock
controllers supported by this binding. Register offsets / layout are
slightly different, so it needs its own compatible.

Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agodt-bindings: stm32: cosmetic fixes for STM32MP25 clock and reset bindings
Gabriel Fernandez [Wed, 25 Jun 2025 09:07:26 +0000 (11:07 +0200)]
dt-bindings: stm32: cosmetic fixes for STM32MP25 clock and reset bindings

- drop minItems from access-controllers
- remove rcc label from example
- fixes typos
- remove double '::' from 'See also::'

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: stm32: introduce clocks for STM32MP21 platform
Gabriel Fernandez [Wed, 25 Jun 2025 09:07:25 +0000 (11:07 +0200)]
clk: stm32: introduce clocks for STM32MP21 platform

This driver is intended for the STM32MP21 clock family.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@foss.st.com>
Reviewed-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agodt-bindings: stm32: add STM32MP21 clocks and reset bindings
Gabriel Fernandez [Wed, 25 Jun 2025 09:07:24 +0000 (11:07 +0200)]
dt-bindings: stm32: add STM32MP21 clocks and reset bindings

Adds clock and reset binding entries for STM32MP21 SoC family.

Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@foss.st.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: Use hashtable for global clk lookups
Chen-Yu Tsai [Thu, 14 Aug 2025 03:53:16 +0000 (11:53 +0800)]
clk: Use hashtable for global clk lookups

A clk lookup using clk_core_lookup() is currently somewhat expensive
since it has to walk the whole clk tree to find a match. This is
extremely bad in the clk_core_init() function where it is used to look
for clk name conflicts, which is always the worst case of walking the
whole tree. Moreover, the number of clks checked increases as more
clks are registered, causing each subsequent clk registration becoming
slower.

Add a hashtable for doing clk lookups to replace the tree walk method.
On arm64 this increases kernel memory usage by 4 KB for the hashtable,
and 16 bytes (2 pointers) for |struct hlist_node| in each clk. On a
platform with around 800 clks, this reduces the time spent in
clk_core_lookup() significantly:

          |      PID 0      |     kworker     |
          | before |  after | before |  after |
    -------------------------------------------
    avg   | 203 us | 2.7 us | 123 us | 1.5 us |
    -------------------------------------------
    min   | 4.7 us | 2.3 us | 102 us | 0.9 us |
    -------------------------------------------
    max   | 867 us | 4.8 us | 237 us | 3.5 us |
    -------------------------------------------
    culm  | 109 ms | 1.5 ms |  21 ms | 0.3 ms |

This in turn reduces the time spent in clk_hw_register(), and
ultimately, boot time. On a different system with close to 700 clks,
This reduces boot time by around 110 ms. While this doesn't seem like
a lot, this helps in cases where minimizing boot time is important.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: Sort include statements
Chen-Yu Tsai [Thu, 14 Aug 2025 03:53:15 +0000 (11:53 +0800)]
clk: Sort include statements

The clk core has its include statements in some random order.

Clean it up before we add more.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoMerge tag 'clk-microchip-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Stephen Boyd [Sun, 21 Sep 2025 16:56:03 +0000 (09:56 -0700)]
Merge tag 'clk-microchip-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into clk-microchip

Pull Microchip clk driver updates from Nicolas Ferre:

 - add one clock for sam9x75
 - new meaning for MCR register field in clk-master
 - use force-write to PLL update register to ensure
   reliable programming sequence
 - update Analog Control Register (ACR) management to accommodate
   differences across SoCs.
 - ACR management dependency with one ARM PM patch added beforehand

* tag 'clk-microchip-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: at91: remove default values for PMC_PLL_ACR
  clk: at91: add ACR in all PLL settings
  clk: at91: sam9x7: Add peripheral clock id for pmecc
  clk: at91: clk-master: Add check for divide by 3
  clk: at91: clk-sam9x60-pll: force write to PLL_UPDT register
  ARM: at91: pm: save and restore ACR during PLL disable/enable

7 weeks agodt-bindings: clock: st: flexgen: remove deprecated compatibles
Raphael Gallais-Pou [Fri, 12 Sep 2025 11:36:12 +0000 (13:36 +0200)]
dt-bindings: clock: st: flexgen: remove deprecated compatibles

st/stih407-clock.dtsi file has been removed in commit 65322c1daf51
("clk: st: flexgen: remove unused compatible").  This file has three
compatibles which are now dangling.  Remove them from documentation.

Signed-off-by: Raphael Gallais-Pou <rgallaispou@gmail.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: st: flexgen: remove unused compatible
Raphael Gallais-Pou [Fri, 12 Sep 2025 11:36:11 +0000 (13:36 +0200)]
clk: st: flexgen: remove unused compatible

Following B2120 boards removal in commit dee546e1adef ("ARM: sti: drop
B2120 board support"), several compatibles are left unused.  Remove
them.

Signed-off-by: Raphael Gallais-Pou <rgallaispou@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: bcm: rpi: Maximize V3D clock
Maíra Canal [Thu, 31 Jul 2025 21:06:19 +0000 (18:06 -0300)]
clk: bcm: rpi: Maximize V3D clock

Although minimizing the clock rate is the best for most scenarios, as
stated in commit 4d85abb0fb8e ("clk: bcm: rpi: Enable minimize for all
firmware clocks"), when it comes to the GPU, it's ideal to have the
maximum rate allowed.

Add an option to maximize a firmware clock's rate when the clock is
enabled and set this option for V3D.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: bcm: rpi: Turn firmware clock on/off when preparing/unpreparing
Maíra Canal [Thu, 31 Jul 2025 21:06:18 +0000 (18:06 -0300)]
clk: bcm: rpi: Turn firmware clock on/off when preparing/unpreparing

Currently, when we prepare or unprepare RPi's clocks, we don't actually
enable/disable the firmware clock. This means that
`clk_disable_unprepare()` doesn't actually change the clock state at
all, nor does it lowers the clock rate.

From the Mailbox Property Interface documentation [1], we can see that
we should use `RPI_FIRMWARE_SET_CLOCK_STATE` to set the clock state
off/on. Therefore, use `RPI_FIRMWARE_SET_CLOCK_STATE` to create a
prepare and an unprepare hook for RPi's firmware clock.

As now the clocks are actually turned off, some of them are now marked
CLK_IS_CRITICAL, as those are required to be on during the whole system
operation.

Link: https://github.com/raspberrypi/firmware/wiki/Mailbox-property-interface
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: bcm: rpi: Add missing logs if firmware fails
Stefan Wahren [Thu, 31 Jul 2025 21:06:17 +0000 (18:06 -0300)]
clk: bcm: rpi: Add missing logs if firmware fails

In contrary to raspberrypi_fw_set_rate(), the ops for is_prepared() and
recalc_rate() silently ignore firmware errors by just returning 0.
Since these operations should never fail, add at least error logs
to inform the user.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoMerge tag 'qcom-clk-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git...
Stephen Boyd [Sun, 21 Sep 2025 15:48:49 +0000 (08:48 -0700)]
Merge tag 'qcom-clk-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into clk-qcom

Pull Qualcomm clk driver updates from Bjorn Andersson:

 - Introduce Qualcomm Glymur global, display, rpmh, and tcsr clock controllers
 - Introduce Qualcomm IPQ5424 APSS clock controller
 - Extend the Qualcomm MSM8916 global clock controller to add support for MSM8937
 - Convert QUalcomm alpha PLL to determine_rate() clk_ops
 - Add missing resets in Qualcomm SC7280 display clock controller

* tag 'qcom-clk-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (27 commits)
  clk: qcom: gcc-sc8280xp: drop obsolete PCIe GDSC comment
  clk: qcom: tcsrcc-x1e80100: Set the bi_tcxo as parent to eDP refclk
  clk: qcom: dispcc-glymur: Constify 'struct qcom_cc_desc'
  clk: qcom: gcc: Add support for Global Clock controller found on MSM8937
  dt-bindings: clock: qcom: Add MSM8937 Global Clock Controller
  clk: qcom: Select the intended config in QCS_DISPCC_615
  clk: qcom: common: Fix NULL vs IS_ERR() check in qcom_cc_icc_register()
  clk: qcom: alpha-pll: convert from round_rate() to determine_rate()
  clk: qcom: milos: Constify 'struct qcom_cc_desc'
  clk: qcom: gcc: Add support for Global Clock Controller
  dt-bindings: clock: qcom: document the Glymur Global Clock Controller
  clk: qcom: clk-alpha-pll: Add support for Taycan EKO_T PLL
  clk: qcom: rpmh: Add support for Glymur rpmh clocks
  clk: qcom: Add TCSR clock driver for Glymur SoC
  dt-bindings: clock: qcom: Document the Glymur SoC TCSR Clock Controller
  dt-bindings: clock: qcom-rpmhcc: Add support for Glymur SoCs
  clk: qcom: dispcc-glymur: Add support for Display Clock Controller
  dt-bindings: clock: Add DISPCC and reset controller for GLYMUR SoC
  clk: qcom: gcc-sdm660: Add missing LPASS/CDSP vote clocks
  dt-bindings: clock: gcc-sdm660: Add LPASS/CDSP vote clocks/GDSCs
  ...

7 weeks agoclk: spacemit: fix i2s clock
Troy Mitchell [Thu, 11 Sep 2025 03:34:05 +0000 (11:34 +0800)]
clk: spacemit: fix i2s clock

Defining i2s_bclk and i2s_sysclk as fixed-rate clocks is insufficient
for real I2S use cases.

Moreover, the current I2S clock configuration does not work as expected
due to missing parent clocks.

This patch adds the missing parent clocks, defines i2s_sysclk as
a DDN clock, and i2s_bclk as a DIV clock.

A special note for i2s_bclk:

From the register definition, the i2s_bclk divider always implies
an additional 1/2 factor.

The following table shows the correspondence between index
and frequency division coefficients:

| index |  div  |
|-------|-------|
|   0   |   2   |
|   1   |   4   |
|   2   |   6   |
|   3   |   8   |

From a software perspective, introducing i2s_bclk_factor as the
parent of i2s_bclk is sufficient to address the issue.

The I2S-related clock registers can be found here [1].

Link:
https://developer.spacemit.com/documentation?token=LCrKwWDasiJuROkVNusc2pWTnEb
[1]

Fixes: 1b72c59db0add ("clk: spacemit: Add clock support for SpacemiT K1 SoC")
Co-developer: Jinmei Wei <weijinmei@linux.spacemit.com>
Suggested-by: Haylen Chu <heylenay@4d2.org>
Signed-off-by: Jinmei Wei <weijinmei@linux.spacemit.com>
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: spacemit: introduce pre-div for ddn clock
Troy Mitchell [Thu, 11 Sep 2025 03:34:04 +0000 (11:34 +0800)]
clk: spacemit: introduce pre-div for ddn clock

The original DDN operations applied an implicit divide-by-2, which should
not be a default behavior.

This patch removes that assumption, letting each clock define its
actual behavior explicitly.

Reviewed-by: Haylen Chu <heylenay@4d2.org>
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agodt-bindings: clock: spacemit: introduce i2s pre-clock to fix i2s clock
Troy Mitchell [Thu, 11 Sep 2025 03:34:03 +0000 (11:34 +0800)]
dt-bindings: clock: spacemit: introduce i2s pre-clock to fix i2s clock

Previously, the K1 clock driver did not include the parent clocks of
the I2S sysclk.

Introduce pre-clock to fix I2S clock.

Otherwise, the I2S clock may not work as expected.

This patch adds their definitions to allow proper registration
in the driver and usage in the device tree.

Fixes: 1b72c59db0add ("clk: spacemit: Add clock support for SpacemiT K1 SoC")
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: scmi: Add duty cycle ops only when duty cycle is supported
Jacky Bai [Mon, 28 Jul 2025 07:04:46 +0000 (15:04 +0800)]
clk: scmi: Add duty cycle ops only when duty cycle is supported

For some of the SCMI based platforms, the oem extended config may be
supported, but not for duty cycle purpose. Skip the duty cycle ops if
err return when trying to get duty cycle info.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agodt-bindings: clock: mediatek: Add power-domains property
Julien Massot [Tue, 26 Aug 2025 07:39:34 +0000 (09:39 +0200)]
dt-bindings: clock: mediatek: Add power-domains property

The mt8183-mfgcfg node uses a power domain in its device tree node.
To prevent schema validation warnings, add the optional `power-domains`
property to the binding schema for mediatek syscon clocks.

Fixes: 1781f2c46180 ("arm64: dts: mediatek: mt8183: Add power-domains properity to mfgcfg")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Julien Massot <julien.massot@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: keystone: sci-clk: use devm_kmemdup_array()
Raag Jadav [Tue, 16 Sep 2025 12:45:18 +0000 (18:15 +0530)]
clk: keystone: sci-clk: use devm_kmemdup_array()

Convert to use devm_kmemdup_array() which is more robust.

Signed-off-by: Raag Jadav <raag.jadav@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: ti: am33xx: keep WKUP_DEBUGSS_CLKCTRL enabled
Matthias Schiffer [Mon, 25 Aug 2025 14:08:11 +0000 (16:08 +0200)]
clk: ti: am33xx: keep WKUP_DEBUGSS_CLKCTRL enabled

As described in AM335x Errata Advisory 1.0.42, WKUP_DEBUGSS_CLKCTRL
can't be disabled - the clock module will just be stuck in transitioning
state forever, resulting in the following warning message after the wait
loop times out:

    l3-aon-clkctrl:0000:0: failed to disable

Just add the clock to enable_init_clks, so no attempt is made to disable
it.

Signed-off-by: Matthias Schiffer <matthias.schiffer@tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoclk: amlogic: fix recent code refactoring
Marek Szyprowski [Thu, 18 Sep 2025 16:06:01 +0000 (18:06 +0200)]
clk: amlogic: fix recent code refactoring

Commit 4c4e17f27013 ("clk: amlogic: naming consistency alignment")
refactored some internals in the g12a meson clock driver. Unfortunately
it introduced a bug in the clock init data, which results in the
following kernel panic:

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
...
Data abort info:
...
[0000000000000000] user address but active_mm is swapper
Internal error: Oops: 0000000096000004 [#1]  SMP
Modules linked in:
CPU: 4 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-rc1+ #11158 PREEMPT
Hardware name: Hardkernel ODROID-N2 (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __clk_register+0x60/0x92c
lr : __clk_register+0x48/0x92c
...
Call trace:
 __clk_register+0x60/0x92c (P)
 devm_clk_hw_register+0x5c/0xd8
 meson_eeclkc_probe+0x74/0x110
 g12a_clkc_probe+0x2c/0x58
 platform_probe+0x5c/0xac
 really_probe+0xbc/0x298
 __driver_probe_device+0x78/0x12c
 driver_probe_device+0xdc/0x164
 __driver_attach+0x9c/0x1ac
 bus_for_each_dev+0x74/0xd0
 driver_attach+0x24/0x30
 bus_add_driver+0xe4/0x208
 driver_register+0x60/0x128
 __platform_driver_register+0x24/0x30
 g12a_clkc_driver_init+0x1c/0x28
 do_one_initcall+0x64/0x308
 kernel_init_freeable+0x27c/0x4f8
 kernel_init+0x20/0x1d8
 ret_from_fork+0x10/0x20
Code: 52800038 aa0003fc b9010018 52819801 (f9400260)
---[ end trace 0000000000000000 ]---

Fix this by correcting the clock init data.

Fixes: 4c4e17f27013 ("clk: amlogic: naming consistency alignment")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on BananPi M2S
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
7 weeks agoMerge tag 'sunxi-clk-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git...
Stephen Boyd [Sat, 20 Sep 2025 04:50:38 +0000 (21:50 -0700)]
Merge tag 'sunxi-clk-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-allwinner

Pull Allwinner clk driver updates from Chen-Yu Tsai:

In this cycle support for power-of-two single divider clocks was added.
This covers some of the clocks found in the A523 MCU PRCM clock and
reset controller, for which support was added as well.

Besides the new controller, a missing clock was added for the A523's
main clock controller. The RTC clock driver gained specifics for the
A523's RTC block for tweaking the clock rate of the internal oscillator
to get it closer to what the RTC needs.

* tag 'sunxi-clk-for-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: add support for the A523/T527 MCU CCU
  clk: sunxi-ng: div: support power-of-two dividers
  clk: sunxi-ng: sun55i-a523-ccu: Add missing NPU module clock
  dt-bindings: clock: sun55i-a523-ccu: Add A523 MCU CCU clock controller
  dt-bindings: clock: sun55i-a523-ccu: Add missing NPU module clock
  clk: sunxi-ng: sun6i-rtc: Add A523 specifics

7 weeks agoARM: at91: remove default values for PMC_PLL_ACR
Cristian Birsan [Thu, 21 Nov 2024 18:16:38 +0000 (20:16 +0200)]
ARM: at91: remove default values for PMC_PLL_ACR

Remove default values for PMC PLL Analog Control Register(ACR) as the
values are specific for each SoC and PLL and load them from PLL
characteristics structure

Co-developed-by: Andrei Simion <andrei.simion@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
[nicolas.ferre@microchip.com: fix pll acr write sequence, preserve val]
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
7 weeks agoclk: at91: add ACR in all PLL settings
Cristian Birsan [Thu, 21 Nov 2024 15:47:17 +0000 (17:47 +0200)]
clk: at91: add ACR in all PLL settings

Add the ACR register to all PLL settings and provide the correct
ACR value for each PLL used in different SoCs.

Suggested-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
[nicolas.ferre@microchip.com: add sama7d65 and review commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
7 weeks agoclk: at91: sam9x7: Add peripheral clock id for pmecc
Balamanikandan Gunasundar [Tue, 9 Sep 2025 10:38:17 +0000 (16:08 +0530)]
clk: at91: sam9x7: Add peripheral clock id for pmecc

Add pmecc instance id in peripheral clock description.

Signed-off-by: Balamanikandan Gunasundar <balamanikandan.gunasundar@microchip.com>
Link: https://lore.kernel.org/r/20250909103817.49334-1-balamanikandan.gunasundar@microchip.com
[claudiu.beznea@tuxon.dev: use tabs instead of spaces]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
7 weeks agoclk: at91: clk-master: Add check for divide by 3
Ryan Wanner [Mon, 8 Sep 2025 20:07:17 +0000 (13:07 -0700)]
clk: at91: clk-master: Add check for divide by 3

A potential divider for the master clock is div/3. The register
configuration for div/3 is MASTER_PRES_MAX. The current bit shifting
method does not work for this case. Checking for MASTER_PRES_MAX will
ensure the correct decimal value is stored in the system.

Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
7 weeks agoclk: at91: clk-sam9x60-pll: force write to PLL_UPDT register
Nicolas Ferre [Wed, 27 Aug 2025 15:08:10 +0000 (17:08 +0200)]
clk: at91: clk-sam9x60-pll: force write to PLL_UPDT register

This register is important for sequencing the commands to PLLs, so
actually write the update bits with regmap_write_bits() instead of
relying on a read/modify/write regmap command that could skip the actual
hardware write if the value is identical to the one read.

It's changed when modification is needed to the PLL, when
read-only operation is done, we could keep the call to
regmap_update_bits().

Add a comment to the sam9x60_div_pll_set_div() function that uses this
PLL_UPDT register so that it's used consistently, according to the
product's datasheet.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Tested-by: Ryan Wanner <ryan.wanner@microchip.com> # on sama7d65 and sam9x75
Link: https://lore.kernel.org/r/20250827150811.82496-1-nicolas.ferre@microchip.com
[claudiu.beznea: fix "Alignment should match open parenthesis"
 checkpatch.pl check]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
7 weeks agoARM: at91: pm: save and restore ACR during PLL disable/enable
Nicolas Ferre [Wed, 27 Aug 2025 14:54:27 +0000 (16:54 +0200)]
ARM: at91: pm: save and restore ACR during PLL disable/enable

Add a new word in assembly to store ACR value during the calls
to at91_plla_disable/at91_plla_enable macros and use it.

Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
[cristian.birsan@microchip.com: remove ACR_DEFAULT_PLLA loading]
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Link: https://lore.kernel.org/r/20250827145427.46819-4-nicolas.ferre@microchip.com
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
7 weeks agoMerge tag 'clk-imx-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelvesa...
Stephen Boyd [Wed, 17 Sep 2025 04:40:54 +0000 (21:40 -0700)]
Merge tag 'clk-imx-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux into clk-imx

Pull i.MX clk driver updates from Abel Vesa:

 - Rework the i.MX95 BLK CTL driver to add the platform data to
   the state container
 - Retain the state of the i.MS95 BLK CTL registers through both
   runtime and system suspend

* tag 'clk-imx-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux:
  clk: imx95-blk-ctl: Save/restore registers when RPM routines are called
  clk: imx95-blk-ctl: Save platform data in imx95_blk_ctl structure

7 weeks agodt-bindings: clock: silabs,si5341: Add missing properties
Rob Herring (Arm) [Sat, 6 Sep 2025 20:16:56 +0000 (15:16 -0500)]
dt-bindings: clock: silabs,si5341: Add missing properties

Add "clock-output-names" which is a standard property for clock
providers.

Add the "always-on" boolean property which was undocumented, but
already in use for some time. The flag prevents a clock output from
being disabled.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Tested-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
8 weeks agoMerge tag 'clk-meson-v6.18-1' of https://github.com/BayLibre/clk-meson into clk-amlogic
Stephen Boyd [Tue, 16 Sep 2025 01:34:57 +0000 (18:34 -0700)]
Merge tag 'clk-meson-v6.18-1' of https://github.com/BayLibre/clk-meson into clk-amlogic

Pull Amlogic clk driver updates from Jerome Brunet:

 - Factorize Amlogic clock controller probe functions
 - Clean up Amlogic peripheral clocks definitions
 - Clean redundant Amlogic composite clock definitions

* tag 'clk-meson-v6.18-1' of https://github.com/BayLibre/clk-meson:
  clk: amlogic: c3-peripherals: use helper for basic composite clocks
  clk: amlogic: align s4 and c3 pwm clock descriptions
  clk: amlogic: add composite clock helpers
  clk: amlogic: use the common pclk definition
  clk: amlogic: introduce a common pclk definition
  clk: amlogic: pclk explicitly use CLK_IGNORE_UNUSED
  clk: amlogic: drop CLK_SET_RATE_PARENT from peripheral clocks
  clk: amlogic: move PCLK definition to clkc-utils
  clk: amlogic: aoclk: use clkc-utils syscon probe
  clk: amlogic: use probe helper in mmio based controllers
  clk: amlogic: add probe helper for mmio based controllers
  clk: amlogic: drop meson-clkcee
  clk: amlogic: naming consistency alignment

8 weeks agoMerge tag 'for-6.18-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux...
Stephen Boyd [Tue, 16 Sep 2025 01:11:00 +0000 (18:11 -0700)]
Merge tag 'for-6.18-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-tegra

Pull Tegra clk driver updates from Thierry Reding:

 - Add DFLL support on Tegra114

 This is quite similar to the existing Tegra124 support and most
 of the code can be reused, except for the CVB frequency tables.

* tag 'for-6.18-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  clk: tegra: dfll: Add CVB tables for Tegra114
  clk: tegra: Add DFLL DVCO reset control for Tegra114
  dt-bindings: arm: tegra: Add ASUS TF101G and SL101
  dt-bindings: reset: Add Tegra114 CAR header
  dt-bindings: arm: tegra: Add Xiaomi Mi Pad (A0101)
  dt-bindings: clock: tegra30: Add IDs for CSI pad clocks
  dt-bindings: display: tegra: Move avdd-dsi-csi-supply from VI to CSI
  dt-bindings: i2c: nvidia,tegra20-i2c: Document Tegra264 I2C

8 weeks agoclk: tegra: dfll: Add CVB tables for Tegra114
Svyatoslav Ryhel [Fri, 29 Aug 2025 12:22:33 +0000 (15:22 +0300)]
clk: tegra: dfll: Add CVB tables for Tegra114

Extend the Tegra124 DFLL driver to include configuration settings
required for Tegra114 compatibility.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
[treding@nvidia.com: Use TEGRA210 instead of T210]
Signed-off-by: Thierry Reding <treding@nvidia.com>
8 weeks agoMerge tag 'samsung-clk-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk...
Stephen Boyd [Sat, 13 Sep 2025 22:06:14 +0000 (15:06 -0700)]
Merge tag 'samsung-clk-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into clk-samsung

Pull Samsung SoC clk driver updates from Krzysztof Kozlowski:

 - Tesla FSD: Expose CSI clocks to consumers (DTS)
 - Exynos990:
   - Few fixes for fixed factor clocks, register widths and proper PLL
     parents
   - Add four more clocks for the DPU and HSI0 clock for USB
   - Add PERIC0 and PERIC1 clock controllers (CMU), responsible for
     providing clocks to serial engines
 - Add seven clock controllers for the new Axis ARTPEC-8 SoC.  The SoC
   shares all main blocks, including the clock controllers, with Samsung
   SoC, so same drivers and bindings are used.
 - Cleanups: switch to clk_ops::determine_rate()

* tag 'samsung-clk-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  clk: samsung: exynos990: Add PERIC0 and PERIC1 clock support
  dt-bindings: clock: exynos990: Add PERIC0 and PERIC1 clock units
  clk: samsung: exynos990: Add missing USB clock registers to HSI0
  clk: samsung: exynos990: Add LHS_ACEL gate clock for HSI0 and update CLK_NR_TOP
  dt-bindings: clock: exynos990: Add LHS_ACEL clock ID for HSI0 block
  clk: samsung: artpec-8: Add initial clock support for ARTPEC-8 SoC
  clk: samsung: Add clock PLL support for ARTPEC-8 SoC
  dt-bindings: clock: Add ARTPEC-8 clock controller
  clk: samsung: exynos990: Add DPU_BUS and CMUREF mux/div and update CLKS_NR_TOP
  dt-bindings: clock: exynos990: Extend clocks IDs
  clk: samsung: exynos990: Replace bogus divs with fixed-factor clocks
  clk: samsung: exynos990: Fix CMU_TOP mux/div bit widths
  clk: samsung: exynos990: Use PLL_CON0 for PLL parent muxes
  clk: samsung: pll: convert from round_rate() to determine_rate()
  clk: samsung: cpu: convert from round_rate() to determine_rate()
  clk: samsung: fsd: Add clk id for PCLK and PLL in CAM_CSI block
  dt-bindings: clock: Add CAM_CSI clock macro for FSD

8 weeks agoMerge tag 'spacemit-clk-for-6.18-1' of https://github.com/spacemit-com/linux into...
Stephen Boyd [Sat, 13 Sep 2025 22:04:11 +0000 (15:04 -0700)]
Merge tag 'spacemit-clk-for-6.18-1' of https://github.com/spacemit-com/linux into clk-spacemit

Pull RISC-V SpacemiT clk driver updates from Yixun Lan:

 - Convert to use clk_ops::determine_rate()
 - Fix parent clocks of SSPA in SpacemiT driver

* tag 'spacemit-clk-for-6.18-1' of https://github.com/spacemit-com/linux:
  clk: spacemit: ccu_pll: convert from round_rate() to determine_rate()
  clk: spacemit: ccu_mix: convert from round_rate() to determine_rate()
  clk: spacemit: ccu_ddn: convert from round_rate() to determine_rate()
  clk: spacemit: fix sspax_clk
  dt-bindings: clock: spacemit: CLK_SSPA_I2S_BCLK for SSPA

8 weeks agoMerge tag 'thead-clk-for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git...
Stephen Boyd [Sat, 13 Sep 2025 21:56:54 +0000 (14:56 -0700)]
Merge tag 'thead-clk-for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux into clk-thead

Pull T-HEAD clock driver updates from Drew Fustini:

 - Describe gate clocks with clk_gate so that clock gates can be clock
   parents. This is similar to the mux clock refactor in 54edba916e29
   ("clk: thead: th1520-ap: Describe mux clocks with clk_mux").
 - Add support for enabling/disabling PLLs. Some PLLs are put into a
   disabled state by the bootloader, and clock driver now has the
   ability to enable them.
 - Set all AXI clocks to CLK_IS_CRITICAL. The AXI crossbar of TH1520 has
   no proper timeout handling, which means gating AXI clocks can easily
   lead to bus timeout and hang the system. All these clock gates are
   ungated by default on system reset.
 - Convert all current CLK_IGNORE_UNUSED usage to CLK_IS_CRITICAL to
   prevent unwanted clock gating.
 - Fix parent of padctrl0 clock, fix parent of DPU pixel clocks and
   support changing DPU pixel clock rate.

* tag 'thead-clk-for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux:
  clk: thead: th1520-ap: set all AXI clocks to CLK_IS_CRITICAL
  clk: thead: support changing DPU pixel clock rate
  clk: thead: add support for enabling/disabling PLLs
  clk: thead: Correct parent for DPU pixel clocks
  clk: thead: th1520-ap: fix parent of padctrl0 clock
  clk: thead: th1520-ap: describe gate clocks with clk_gate

8 weeks agoMerge tag 'renesas-clk-for-v6.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel...
Stephen Boyd [Sat, 13 Sep 2025 21:33:10 +0000 (14:33 -0700)]
Merge tag 'renesas-clk-for-v6.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-renesas

Pull Renesas clk driver updates from Geert Uytterhoeven:

 - Add Ethernet clocks on Renesas RZ/T2H and RZ/N2H
 - Add USB3.0 clocks and resets on Renesas RZ/G3E
 - Add I3C clocks and resets on Renesas RZ/V2H and RZ/V2N
 - Add USB and remaining serial (SCI) clocks and resets on Renesas
   RZ/T2H and RZ/N2H
 - Add I3C and PCIe clocks and resets on Renesas RZ/G3S
 - Add DMAC and PWM (GPT) clocks and resets on Renesas RZ/G3E
 - Add Module Stop (MSTOP) support on RZ/G2L and Renesas RZ/G2UL
 - Convert from clk_ops::round_rate() to clk_ops::determine_rate()

* tag 'renesas-clk-for-v6.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: (27 commits)
  clk: renesas: r9a09g05[67]: Reduce differences
  clk: renesas: r9a09g047: Add USB3.0 clocks/resets
  clk: renesas: cpg-mssr: Fix memory leak in cpg_mssr_reserved_init()
  clk: renesas: r9a09g056: Add clock and reset entries for I3C
  clk: renesas: r9a09g057: Add clock and reset entries for I3C
  dt-bindings: clock: renesas,r9a09g047-cpg: Add USB3.0 core clocks
  clk: renesas: r9a09g077: Add Ethernet Subsystem core and module clocks
  clk: renesas: rzv2h: Simplify polling condition in __rzv2h_cpg_assert()
  clk: renesas: rzv2h: Re-assert reset on deassert timeout
  clk: renesas: rzg2l: Re-assert reset on deassert timeout
  clk: renesas: rzg2l: Simplify rzg2l_cpg_assert() and rzg2l_cpg_deassert()
  dt-bindings: clock: renesas,r9a09g077/87: Add Ethernet clock IDs
  clk: renesas: r9a09g047: Add GPT clocks and resets
  clk: renesas: r9a09g077: Add module clocks for SCI1-SCI5
  clk: renesas: rzv2h: remove round_rate() in favor of determine_rate()
  clk: renesas: rzg2l: convert from round_rate() to determine_rate()
  clk: renesas: r9a07g04[34]: Use tabs instead of spaces
  clk: renesas: r9a07g043: Add MSTOP for RZ/G2UL
  clk: renesas: r9a07g044: Add MSTOP for RZ/G2L
  clk: renesas: r9a08g045: Add MSTOP for GPIO
  ...

8 weeks agoclk: sunxi-ng: add support for the A523/T527 MCU CCU
Chen-Yu Tsai [Thu, 11 Sep 2025 17:47:08 +0000 (01:47 +0800)]
clk: sunxi-ng: add support for the A523/T527 MCU CCU

The A523/T527 SoCs have a new MCU PRCM, which has more clocks and reset
controls for the RISC-V MCU and other peripherals. There is a second
audio PLL, but no bus clock dividers. The BSP driver uses the 24MHz main
oscillator as the parent for all the bus clocks. But the diagram
suggests busses from the other PRCM are used in this block as well.

Add a driver to support this part. Unlike the BSP driver, the SoC's main
MBUS clock is chosen as the parent for the MCU MBUS clock, and the
latter then serves as the parent of the MCU DMA controller's MBUS clock.
The bus gate clocks also use their respective bus clocks as parents
according to the system bus tree diagram. In cases where a block does
not appear in that diagram, an educated guess is made.

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250911174710.3149589-6-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
8 weeks agoclk: sunxi-ng: div: support power-of-two dividers
Chen-Yu Tsai [Thu, 11 Sep 2025 17:47:07 +0000 (01:47 +0800)]
clk: sunxi-ng: div: support power-of-two dividers

Some clocks (for timers) on the A523 are mux-divider-gate types
with the divider being values of power-of-two.

Add a macro for these types of clocks so that we can use the divider
types instead of the M-P types without an M divider.

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250911174710.3149589-5-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
8 weeks agoclk: sunxi-ng: sun55i-a523-ccu: Add missing NPU module clock
Chen-Yu Tsai [Thu, 11 Sep 2025 17:47:06 +0000 (01:47 +0800)]
clk: sunxi-ng: sun55i-a523-ccu: Add missing NPU module clock

The main clock controller on the A523/T527 has the NPU's module clock.
It was missing from the original submission, likely because that was
based on the A523 user manual; the A523 is marketed without the NPU.

Also, merge the private header back into the driver code itself. The
header only contains a macro containing the total number of clocks.
This has to be updated every time a missing clock gets added. Having
it in a separate file doesn't help the process. Instead just drop the
macro, and thus the header no longer has any reason to exist.

Also move the .num value to after the list of clks to make it obvious
that it should be updated when new clks are added.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250911174710.3149589-4-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
8 weeks agoMerge branch 'sunxi/shared-dt-headers-for-6.18' into sunxi/clk-for-6.18
Chen-Yu Tsai [Sat, 13 Sep 2025 05:50:11 +0000 (13:50 +0800)]
Merge branch 'sunxi/shared-dt-headers-for-6.18' into sunxi/clk-for-6.18

8 weeks agodt-bindings: clock: sun55i-a523-ccu: Add A523 MCU CCU clock controller
Chen-Yu Tsai [Thu, 11 Sep 2025 17:47:05 +0000 (01:47 +0800)]
dt-bindings: clock: sun55i-a523-ccu: Add A523 MCU CCU clock controller

There are four clock controllers in the A523 SoC. The existing binding
already covers two of them that are critical for basic operation. The
remaining ones are the MCU clock controller and CPU PLL clock
controller.

Add a description for the MCU CCU. This unit controls and provides
clocks to the MCU (RISC-V) subsystem and peripherals meant to operate
under low power conditions.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250911174710.3149589-3-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
8 weeks agodt-bindings: clock: sun55i-a523-ccu: Add missing NPU module clock
Chen-Yu Tsai [Thu, 11 Sep 2025 17:47:04 +0000 (01:47 +0800)]
dt-bindings: clock: sun55i-a523-ccu: Add missing NPU module clock

The main clock controller on the A523/T527 has the NPU's module clock.
It was missing from the original submission, likely because that was
based on the A523 user manual; the A523 is marketed without the NPU.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250911174710.3149589-2-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
8 weeks agoclk: imx95-blk-ctl: Save/restore registers when RPM routines are called
Laurentiu Palcu [Mon, 4 Aug 2025 13:14:50 +0000 (16:14 +0300)]
clk: imx95-blk-ctl: Save/restore registers when RPM routines are called

When runtime PM is used for clock providers that are part of a power
domain, the power domain supply is cut off during runtime suspend. This
causes all BLK CTL registers belonging to that power domain to reset. To
prevent this, save the state of the registers before entering suspend
and restore them on resume. Additionally, disable the APB clock during
suspend to minimize power consumption.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250804131450.3918846-3-laurentiu.palcu@oss.nxp.com
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
8 weeks agoclk: imx95-blk-ctl: Save platform data in imx95_blk_ctl structure
Laurentiu Palcu [Mon, 4 Aug 2025 13:14:49 +0000 (16:14 +0300)]
clk: imx95-blk-ctl: Save platform data in imx95_blk_ctl structure

Add a platform data (pdata) member to struct imx95_blk_ctl to store the
result of of_device_get_match_data() during probe to avoid redundant
calls in suspend and resume functions.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20250804131450.3918846-2-laurentiu.palcu@oss.nxp.com
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
8 weeks agoclk: renesas: r9a09g05[67]: Reduce differences
Geert Uytterhoeven [Thu, 11 Sep 2025 15:57:58 +0000 (17:57 +0200)]
clk: renesas: r9a09g05[67]: Reduce differences

The clock drivers for RZ/V2H and RZ/V2N are very similar.
Reduce the differences between them by:
  - Moving and reformatting the PLLCM33_GEAR clock definitions,
  - Replacing spaces by TABs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/2246d2263e8a24d1aaf653db2004cbf2263c9048.1757606097.git.geert+renesas@glider.be
8 weeks agoclk: renesas: r9a09g047: Add USB3.0 clocks/resets
Biju Das [Tue, 9 Sep 2025 18:07:47 +0000 (19:07 +0100)]
clk: renesas: r9a09g047: Add USB3.0 clocks/resets

Add USB3.0 clock and reset entries.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250909180803.140939-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
8 weeks agoMerge tag 'renesas-r9a09g047-dt-binding-defs-tag4' into renesas-clk-for-v6.18
Geert Uytterhoeven [Fri, 12 Sep 2025 07:53:27 +0000 (09:53 +0200)]
Merge tag 'renesas-r9a09g047-dt-binding-defs-tag4' into renesas-clk-for-v6.18

Renesas RZ/G3E USB3.0 Core Clock DT Binding Definitions

USB3.0 core clock DT binding definitions for the Renesas RZ/G3E
(R9A09G047) SoC, shared by driver and DT source files.

8 weeks agoclk: renesas: cpg-mssr: Fix memory leak in cpg_mssr_reserved_init()
Yuan CHen [Mon, 8 Sep 2025 01:28:10 +0000 (02:28 +0100)]
clk: renesas: cpg-mssr: Fix memory leak in cpg_mssr_reserved_init()

In case of krealloc_array() failure, the current error handling just
returns from the function without freeing the original array.
Fix this memory leak by freeing the original array.

Fixes: 6aa1754764901668 ("clk: renesas: cpg-mssr: Ignore all clocks assigned to non-Linux system")
Signed-off-by: Yuan CHen <chenyuan@kylinos.cn>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250908012810.4767-1-chenyuan_fl@163.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
8 weeks agoclk: qcom: gcc-sc8280xp: drop obsolete PCIe GDSC comment
Johan Hovold [Wed, 10 Sep 2025 13:47:37 +0000 (15:47 +0200)]
clk: qcom: gcc-sc8280xp: drop obsolete PCIe GDSC comment

Drop an obsolete comment about keeping the PCIe GDSCs always-on,
something which is no longer the case since commit db382dd55bcb ("clk:
qcom: gcc-sc8280xp: Allow PCIe GDSCs to enter retention state").

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250910134737.19381-1-johan+linaro@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
8 weeks agoclk: qcom: tcsrcc-x1e80100: Set the bi_tcxo as parent to eDP refclk
Abel Vesa [Wed, 30 Jul 2025 16:11:12 +0000 (19:11 +0300)]
clk: qcom: tcsrcc-x1e80100: Set the bi_tcxo as parent to eDP refclk

All the other ref clocks provided by this driver have the bi_tcxo
as parent. The eDP refclk is the only one without a parent, leading
to reporting its rate as 0. So set its parent to bi_tcxo, just like
the rest of the refclks.

Cc: stable@vger.kernel.org # v6.9
Fixes: 06aff116199c ("clk: qcom: Add TCSR clock driver for x1e80100")
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250730-clk-qcom-tcsrcc-x1e80100-parent-edp-refclk-v1-1-7a36ef06e045@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
8 weeks agoclk: sunxi-ng: sun6i-rtc: Add A523 specifics
Chen-Yu Tsai [Tue, 9 Sep 2025 17:09:47 +0000 (01:09 +0800)]
clk: sunxi-ng: sun6i-rtc: Add A523 specifics

The A523's RTC block is backward compatible with the R329's, but it also
has a calibration function for its internal oscillator, which would
allow it to provide a clock rate closer to the desired 32.768 KHz. This
is useful on the Radxa Cubie A5E, which does not have an external 32.768
KHz crystal.

Add new compatible-specific data for it.

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20250909170947.2221611-1-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
8 weeks agoclk: renesas: r9a09g056: Add clock and reset entries for I3C
Lad Prabhakar [Thu, 4 Sep 2025 15:55:07 +0000 (16:55 +0100)]
clk: renesas: r9a09g056: Add clock and reset entries for I3C

Add module clock entries for the I3C controller on the RZ/V2N
(R9A09G056) SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250904155507.245744-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
8 weeks agoclk: renesas: r9a09g057: Add clock and reset entries for I3C
Lad Prabhakar [Thu, 4 Sep 2025 15:55:06 +0000 (16:55 +0100)]
clk: renesas: r9a09g057: Add clock and reset entries for I3C

Add module clock entries for the I3C controller on the RZ/V2H(P)
(R9A09G057) SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250904155507.245744-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
8 weeks agodt-bindings: clock: renesas,r9a09g047-cpg: Add USB3.0 core clocks
Biju Das [Tue, 9 Sep 2025 18:07:46 +0000 (19:07 +0100)]
dt-bindings: clock: renesas,r9a09g047-cpg: Add USB3.0 core clocks

Add definitions for USB3.0 core clocks in the R9A09G047 CPG DT bindings
header file.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20250909180803.140939-2-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
8 weeks agoclk: tegra: Add DFLL DVCO reset control for Tegra114
Svyatoslav Ryhel [Fri, 29 Aug 2025 12:22:32 +0000 (15:22 +0300)]
clk: tegra: Add DFLL DVCO reset control for Tegra114

The DVCO present in the DFLL IP block has a separate reset line, exposed
via the CAR IP block.  This reset line is asserted upon SoC reset.
Unless something (such as the DFLL driver) deasserts this line, the DVCO
will not oscillate, although reads and writes to the DFLL IP block will
complete.

Based on a3c83ff2 ("clk: tegra: Add DFLL DVCO reset control for Tegra124")

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
8 weeks agoMerge branch 'for-6.18/dt-bindings' into for-6.18/clk
Thierry Reding [Thu, 11 Sep 2025 16:29:42 +0000 (18:29 +0200)]
Merge branch 'for-6.18/dt-bindings' into for-6.18/clk

8 weeks agodt-bindings: arm: tegra: Add ASUS TF101G and SL101
Svyatoslav Ryhel [Sat, 6 Sep 2025 06:29:33 +0000 (09:29 +0300)]
dt-bindings: arm: tegra: Add ASUS TF101G and SL101

Add a compatible for ASUS Eee Pad Transformer TF101G and ASUS Eee Pad
Slider SL101.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
8 weeks agodt-bindings: reset: Add Tegra114 CAR header
Svyatoslav Ryhel [Fri, 29 Aug 2025 12:22:31 +0000 (15:22 +0300)]
dt-bindings: reset: Add Tegra114 CAR header

The way that resets are handled on these Tegra devices is that there is a
set of peripheral clocks & resets which are paired up. This is because they
are laid out in banks within the CAR (clock and reset) controller. In most
cases we're referring to those resets, so you'll often see a clock ID used
in conjection with the same reset ID for a given IP block.

In addition to those peripheral resets, there are a number of extra resets
that don't have a corresponding clock and which are exposed in registers
outside of the peripheral banks, but still part of the CAR. To support
those "special" registers, the TEGRA*_RESET() is used to denote resets
outside of the regular peripheral resets. Essentially it defines the offset
within the CAR at which special resets start. In the above case, Tegra114
has 5 banks with 32 peripheral resets each. The first special reset,
TEGRA114_RESET(0), therefore gets ID 5 * 32 + 0 = 160.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
8 weeks agodt-bindings: arm: tegra: Add Xiaomi Mi Pad (A0101)
Svyatoslav Ryhel [Tue, 9 Sep 2025 07:49:57 +0000 (10:49 +0300)]
dt-bindings: arm: tegra: Add Xiaomi Mi Pad (A0101)

Add a compatible for the Xiaomi Mi Pad (A0101) tablet.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
8 weeks agodt-bindings: clock: tegra30: Add IDs for CSI pad clocks
Svyatoslav Ryhel [Sat, 6 Sep 2025 13:53:23 +0000 (16:53 +0300)]
dt-bindings: clock: tegra30: Add IDs for CSI pad clocks

Tegra30 has CSI pad clock enable bits embedded into PLLD/PLLD2 registers.
Add ids for these clocks. Additionally, move TEGRA30_CLK_CLK_MAX into
clk-tegra30 source.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
8 weeks agodt-bindings: display: tegra: Move avdd-dsi-csi-supply from VI to CSI
Svyatoslav Ryhel [Sat, 6 Sep 2025 13:53:33 +0000 (16:53 +0300)]
dt-bindings: display: tegra: Move avdd-dsi-csi-supply from VI to CSI

The avdd-dsi-csi-supply is CSI power supply, it has nothing to do with
VI, like same supply is used with DSI and has nothing to do with DC.
Move it to correct place.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
8 weeks agodt-bindings: i2c: nvidia,tegra20-i2c: Document Tegra264 I2C
Kartik Rajput [Thu, 28 Aug 2025 05:59:29 +0000 (11:29 +0530)]
dt-bindings: i2c: nvidia,tegra20-i2c: Document Tegra264 I2C

Tegra264 has 17 generic I2C controllers, two of which are in always-on
partition of the SoC. In addition to the features supported by Tegra194
it also supports a SW mutex register to allow sharing the same I2C
instance across multiple firmware.

Document compatible string "nvidia,tegra264-i2c" for Tegra264 I2C.

Signed-off-by: Kartik Rajput <kkartik@nvidia.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2 months agoclk: qcom: dispcc-glymur: Constify 'struct qcom_cc_desc'
Imran Shaik [Tue, 9 Sep 2025 09:47:59 +0000 (15:17 +0530)]
clk: qcom: dispcc-glymur: Constify 'struct qcom_cc_desc'

'struct qcom_cc_desc' is passed to qcom_cc_map() and
qcom_cc_really_probe() only as pointer to const, so make the memory
const for safety.

Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250909-constify-dispcc-glymur-desc-fix-v1-1-6cb59730863f@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2 months agoclk: samsung: exynos990: Add PERIC0 and PERIC1 clock support
Denzeel Oliva [Thu, 4 Sep 2025 14:07:13 +0000 (14:07 +0000)]
clk: samsung: exynos990: Add PERIC0 and PERIC1 clock support

Add clock controller support for Peripheral Connectivity 0 and 1 blocks.
These provide clocks for USI, I2C and UART peripherals.

Some clocks need to be marked as critical to prevent system hang when
disabled.

Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2 months agodt-bindings: clock: exynos990: Add PERIC0 and PERIC1 clock units
Denzeel Oliva [Thu, 4 Sep 2025 14:07:11 +0000 (14:07 +0000)]
dt-bindings: clock: exynos990: Add PERIC0 and PERIC1 clock units

Add clock management unit bindings for PERIC0 and PERIC1 blocks
which provide clocks for USI, I2C and UART peripherals.

Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2 months agoclk: amlogic: c3-peripherals: use helper for basic composite clocks
Jerome Brunet [Mon, 25 Aug 2025 14:26:37 +0000 (16:26 +0200)]
clk: amlogic: c3-peripherals: use helper for basic composite clocks

Use the composite clock helpers to define simple composite clocks of
the c3-peripherals clock controller.

This reduces the verbosity of the controller code on these very simple
parts, making maintenance simpler.

Reviewed-by: Chuan Liu <chuan.liu@amlogic.com>
Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-12-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: align s4 and c3 pwm clock descriptions
Jerome Brunet [Mon, 25 Aug 2025 14:26:36 +0000 (16:26 +0200)]
clk: amlogic: align s4 and c3 pwm clock descriptions

s4 and c3 follow exactly the same structure when it comes to PWM clocks but
differ in the way these clocks are described, for no obvious reason.

Align the description of the pwm clocks of these SoCs with the composite
clock helpers.

Reviewed-by: Chuan Liu <chuan.liu@amlogic.com>
Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-11-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: add composite clock helpers
Jerome Brunet [Mon, 25 Aug 2025 14:26:35 +0000 (16:26 +0200)]
clk: amlogic: add composite clock helpers

Device composite clocks tend to reproduce the usual sel/div/gate
arrangement.

Add macros to help define simple composite clocks in the system.

The idea is _not_ to replace all instances of mux, div or gate with those
macros. It is rather to use it for recurring and/or simple composite
clocks, reducing controller verbosity where it makes sense. This should
help reviews focus on the tricky parts.

Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-10-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: use the common pclk definition
Jerome Brunet [Mon, 25 Aug 2025 14:26:34 +0000 (16:26 +0200)]
clk: amlogic: use the common pclk definition

Replace marcros defining pclks with the common one, reducing code
duplication.

Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-9-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: introduce a common pclk definition
Jerome Brunet [Mon, 25 Aug 2025 14:26:33 +0000 (16:26 +0200)]
clk: amlogic: introduce a common pclk definition

All Amlogic peripheral clocks are more or less the same. The only thing
that differs is the parent data.

Adapt the common pclk definition so it takes clk_parent_data and can be
used by all controllers.

Reviewed-by: Chuan Liu <chuan.liu@amlogic.com>
Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-8-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: pclk explicitly use CLK_IGNORE_UNUSED
Jerome Brunet [Mon, 25 Aug 2025 14:26:32 +0000 (16:26 +0200)]
clk: amlogic: pclk explicitly use CLK_IGNORE_UNUSED

Every usage of CLK_IGNORE_UNUSED should be explicitly motivated and
documented. However, the PCLK macros used by most Amlogic platforms are
adding that flag systematically. Because of this, all pclks are marked with
CLK_IGNORE_UNUSED, without any form of distinction or motivation.

This may have been fine in the early days of CCF but it is not anymore.

Just removing the flag is not an option at this stage since it could cause
regression on existing platforms.

Instead, drop the flag from the macro definition and add it to the each
clock definition, for the existing clocks. This makes quite a nasty change
but it will make it a lot easier for people to contribute to fixing the
problem, clock by clock. It will also prevent new platform from being added
with a silent use of the flag.

Reviewed-by: Chuan Liu <chuan.liu@amlogic.com>
Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-7-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: drop CLK_SET_RATE_PARENT from peripheral clocks
Jerome Brunet [Mon, 25 Aug 2025 14:26:31 +0000 (16:26 +0200)]
clk: amlogic: drop CLK_SET_RATE_PARENT from peripheral clocks

On Amlogic SoCs, the rate of a peripheral clock should not be changed,
let alone the rate of the parent PLL.

These clocks are meant to be used as provided by the parent PLL. Changing
the rate would be dangerous and would likely break a lot of devices running
from the same PLL.

Don't propagate any rate change request that may come from these clocks and
drop the corresponding flag.

Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-6-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: move PCLK definition to clkc-utils
Jerome Brunet [Mon, 25 Aug 2025 14:26:30 +0000 (16:26 +0200)]
clk: amlogic: move PCLK definition to clkc-utils

clk-regmap was always meant to stay generic, without any amlogic specifics.
The hope was that it could move out of the amlogic directory one day.
Even if this may actually not become true, it should remain generic.

Move the amlogic peripheral clock definition out of clk-regmap header.

Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-5-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: aoclk: use clkc-utils syscon probe
Jerome Brunet [Mon, 25 Aug 2025 14:26:29 +0000 (16:26 +0200)]
clk: amlogic: aoclk: use clkc-utils syscon probe

The clock related part of aoclk probe function duplicates what
the clkc-utils syscon helper does. Factorize this to have a single path to
maintain.

Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-4-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: use probe helper in mmio based controllers
Jerome Brunet [Mon, 25 Aug 2025 14:26:28 +0000 (16:26 +0200)]
clk: amlogic: use probe helper in mmio based controllers

Factorize the probe function of the mmio based amlogic clock controllers
using the newly introduced probe helper. This removes a fair amount
of duplicated code.

Reviewed-by: Chuan Liu <chuan.liu@amlogic.com>
Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-3-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: add probe helper for mmio based controllers
Jerome Brunet [Mon, 25 Aug 2025 14:26:27 +0000 (16:26 +0200)]
clk: amlogic: add probe helper for mmio based controllers

Add a 2nd probe function helper for mmio based controllers, which
are getting the memory region from a resource instead of a syscon.

Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-2-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: amlogic: drop meson-clkcee
Jerome Brunet [Mon, 25 Aug 2025 14:26:26 +0000 (16:26 +0200)]
clk: amlogic: drop meson-clkcee

What is being done by the Amlogic clock controller registration helper for
EE controllers could benefit other controllers. As such, having a specific
module for this makes little sense.

Move the helper function to clkc-utils and rename it to describe what it
does, registering syscon based controller, instead of what it serves.

Link: https://lore.kernel.org/r/20250825-meson-clk-cleanup-24-v2-1-0f402f01e117@baylibre.com
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2 months agoclk: samsung: exynos990: Add missing USB clock registers to HSI0
Denzeel Oliva [Sun, 31 Aug 2025 12:13:16 +0000 (12:13 +0000)]
clk: samsung: exynos990: Add missing USB clock registers to HSI0

These registers are required for proper USB operation and were omitted
in the initial clock controller setup.

Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Link: https://lore.kernel.org/r/20250831-usb-v2-3-00b9c0559733@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2 months agoclk: samsung: exynos990: Add LHS_ACEL gate clock for HSI0 and update CLK_NR_TOP
Denzeel Oliva [Sun, 31 Aug 2025 12:13:15 +0000 (12:13 +0000)]
clk: samsung: exynos990: Add LHS_ACEL gate clock for HSI0 and update CLK_NR_TOP

Add the LHS_ACEL gate clock to the HSI0 clock controller. This clock is
critical for USB functionality and mark it as critical to keep it enabled.

Update CLK_NR_TOP to include the new clock.

Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Link: https://lore.kernel.org/r/20250831-usb-v2-2-00b9c0559733@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2 months agodt-bindings: clock: exynos990: Add LHS_ACEL clock ID for HSI0 block
Denzeel Oliva [Sun, 31 Aug 2025 12:13:14 +0000 (12:13 +0000)]
dt-bindings: clock: exynos990: Add LHS_ACEL clock ID for HSI0 block

Add the missing LHS_ACEL clock ID for the HSI0 block. This clock is
required for proper USB operation, as without it, USB connections fail
with errors like device descriptor read timeouts and address response
issues.

Signed-off-by: Denzeel Oliva <wachiturroxd150@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250831-usb-v2-1-00b9c0559733@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
2 months agoclk: qcom: gcc: Add support for Global Clock controller found on MSM8937
Daniil Titov [Wed, 3 Sep 2025 21:08:22 +0000 (23:08 +0200)]
clk: qcom: gcc: Add support for Global Clock controller found on MSM8937

Modify existing MSM8917 driver to support MSM8937 SoC. Override frequencies
which are different in this chip. Register all the clocks to the framework
for the clients to be able to request for them. Add new variant of GDSC for
new chip.

Signed-off-by: Daniil Titov <daniilt971@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://lore.kernel.org/r/20250903-msm8937-v9-2-a097c91c5801@mainlining.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2 months agoMerge branch '20250903-msm8937-v9-1-a097c91c5801@mainlining.org' into clk-for-6.18
Bjorn Andersson [Thu, 4 Sep 2025 13:38:00 +0000 (08:38 -0500)]
Merge branch '20250903-msm8937-v9-1-a097c91c5801@mainlining.org' into clk-for-6.18

Merge the MSM8937 global clock controller binding through a topic branch
to allow merging the constants into the DeviceTree branch as well.

2 months agodt-bindings: clock: qcom: Add MSM8937 Global Clock Controller
Barnabás Czémán [Wed, 3 Sep 2025 21:08:21 +0000 (23:08 +0200)]
dt-bindings: clock: qcom: Add MSM8937 Global Clock Controller

Add device tree bindings for the global clock controller on Qualcomm
MSM8937 platform.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://lore.kernel.org/r/20250903-msm8937-v9-1-a097c91c5801@mainlining.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2 months agoclk: qcom: Select the intended config in QCS_DISPCC_615
Lukas Bulwahn [Tue, 2 Sep 2025 12:17:54 +0000 (14:17 +0200)]
clk: qcom: Select the intended config in QCS_DISPCC_615

Commit 9b47105f5434 ("clk: qcom: dispcc-qcs615: Add QCS615 display clock
controller driver") adds the config QCS_DISPCC_615, which selects the
non-existing config QCM_GCC_615. Probably, this is just a three-letter
abbreviation mix-up here, though. There is a config named QCS_GCC_615,
and the related config QCS_CAMCC_615 selects that config.

Fix the typo and use the intended config name in the select command.

Fixes: 9b47105f5434 ("clk: qcom: dispcc-qcs615: Add QCS615 display clock controller driver")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250902121754.277452-1-lukas.bulwahn@redhat.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2 months agoclk: qcom: common: Fix NULL vs IS_ERR() check in qcom_cc_icc_register()
Dan Carpenter [Tue, 2 Sep 2025 06:33:36 +0000 (09:33 +0300)]
clk: qcom: common: Fix NULL vs IS_ERR() check in qcom_cc_icc_register()

The devm_clk_hw_get_clk() function doesn't return NULL, it returns error
pointers.  Update the checking to match.

Fixes: 8737ec830ee3 ("clk: qcom: common: Add interconnect clocks support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Imran Shaik <imran.shaik@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/aLaPwL2gFS85WsfD@stanley.mountain
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2 months agoclk: qcom: alpha-pll: convert from round_rate() to determine_rate()
Brian Masney [Fri, 29 Aug 2025 00:38:21 +0000 (20:38 -0400)]
clk: qcom: alpha-pll: convert from round_rate() to determine_rate()

The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
on the cover letter of this series.

Note that prior to running the Coccinelle,
clk_alpha_pll_postdiv_round_ro_rate() was renamed to
clk_alpha_pll_postdiv_ro_round_rate().

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>
Link: https://lore.kernel.org/r/20250828-clk-round-rate-v2-v1-2-b97ec8ba6cc4@redhat.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2 months agoclk: qcom: milos: Constify 'struct qcom_cc_desc'
Krzysztof Kozlowski [Wed, 20 Aug 2025 12:48:22 +0000 (14:48 +0200)]
clk: qcom: milos: Constify 'struct qcom_cc_desc'

'struct qcom_cc_desc' is passed to qcom_cc_map() and
qcom_cc_really_probe() only as pointer to const, so make the memory
const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250820124821.149141-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2 months agoclk: renesas: r9a09g077: Add Ethernet Subsystem core and module clocks
Lad Prabhakar [Thu, 4 Sep 2025 07:19:54 +0000 (08:19 +0100)]
clk: renesas: r9a09g077: Add Ethernet Subsystem core and module clocks

Add module and core clocks used by Ethernet Subsystem (Ethernet_SS),
Ethernet MAC (GMAC), Ethernet Switch (ETHSW).

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250904071954.3176806-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2 months agoMerge tag 'renesas-r9a09g077-dt-binding-defs-tag4' into renesas-clk-for-v6.18
Geert Uytterhoeven [Thu, 4 Sep 2025 09:32:33 +0000 (11:32 +0200)]
Merge tag 'renesas-r9a09g077-dt-binding-defs-tag4' into renesas-clk-for-v6.18

Renesas RZ/T2H and RZ/N2H Ethernet Clock DT Binding Definitions

Ethernet Clock DT binding definitions for the Renesas RZ/T2H (R9A09G077)
and RZ/N2H (R9A09G087) SoCs, shared by driver and DT source files.

2 months agoclk: renesas: rzv2h: Simplify polling condition in __rzv2h_cpg_assert()
Tommaso Merciai [Wed, 3 Sep 2025 08:27:53 +0000 (10:27 +0200)]
clk: renesas: rzv2h: Simplify polling condition in __rzv2h_cpg_assert()

Replace the ternary operator with a direct boolean comparison to improve
code readability and maintainability. The logic remains unchanged.

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250903082757.115778-5-tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2 months agoclk: renesas: rzv2h: Re-assert reset on deassert timeout
Tommaso Merciai [Wed, 3 Sep 2025 08:27:52 +0000 (10:27 +0200)]
clk: renesas: rzv2h: Re-assert reset on deassert timeout

Prevent issues during reset deassertion by re-asserting the reset if a
timeout occurs when trying to deassert. This ensures the reset line is in a
known state and improves reliability for hardware that may not immediately
clear the reset monitor bit.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://lore.kernel.org/20250903082757.115778-4-tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>