Arnd Bergmann [Fri, 28 Jun 2024 15:41:42 +0000 (17:41 +0200)]
Merge tag 'mtk-dts64-for-v6.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into soc/dt
MediaTek ARM64 DTS updates for v6.11
This introduces the new Airoha (MediaTek) EN7581 home networking
platform (routers) in early stages, but with support for its
Evaluation Board, a few more MediaTek based machines, and
improvements for existing ones.
For the MT7981 router SoC we get pinctrl support, along with the
enablement of its watchdog, eFuse/nvmem, I2C and integrated WiFi
controller, other than the introduction of new machines based on
this chip: the Cudy WR3000 V1 router and the OpenWRT One.
MT7986 gets a new machine: the BananaPi R3 Mini.
Some advancements have been done also on the MT7988 SoC, which
gains support for its I2C, PWM and USB XHCI controllers.
MediaTek Genio SoCs also get attention, with the introduction of a
basic device tree for the MT8390 Genio 700-EVK board, and for the
MT8395 Genio 1200 powered Kontron 3.5"-SBC-i1200.
Additionally, the Genio 1200 Radxa NIO12L board gets support for
USB Role Switching and proper PCI-Express controller PM suspend
and resume, other than finally enabling CPU and GPU frequency
and voltage scaling for improved efficiency.
Speaking of MediaTek Kompanio SoCs (Chromebooks) instead, thanks
to community interest and help in testing, there comes support for
the MT8195-powered HP Chromebook X360 13b-ca0002sa, while Google
contributed support for the MT8186-powered Acer Chromebook 311.
Moreover, MT8188 gets support for its integrated power domains,
other than its Global Command Engine (GCE) mailboxes, initial
basic support for the VDO0/1 blocks for multimedia, and its GPU
(ARM Mali G57-MC3, Valhall-JM) with Panfrost.
Besides that, this also adds a few other cleanups and improvements
for all machines using the MT8183, MT8192, MT8195/MT8395 SoCs and
adds generation of symbols on base devicetrees of machines using
Device Tree Overlay(s) (DTBO).
In particular:
- The MediaTek Smart Voltage Scaling (SVS) is now fully working
those SoCs, bringing further power efficiency improvements;
- Thermal zones were refactored on MT8183 for consistency with
the other MediaTek SoCs and for readability
- Sound DAI links are now consistently specified in device tree
on MT8195 and MT8186 machines
- Newly supported machines/boards
- EN7581: EVK
- MT7981: Cudy WR3000 V1, OpenWRT One
- MT7986: BananaPi R3 Mini
- MT8186: Acer Chromebook 311 (Corsola Voltorb)
- MT8195: HP Chromebook X360 13b-ca0002sa (Cherry Dojo)
- MT8390/8188: Genio 700 EVK
- Some cleanups for unused/legacy devicetree properties
* tag 'mtk-dts64-for-v6.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux: (58 commits)
arm64: dts: mediatek: Declare drive-strength numerically
arm64: dts: mt7622: fix switch probe on bananapi-r64
arm64: dts: mediatek: Add MT8186 Voltorb Chromebooks
dt-bindings: arm: mediatek: Add MT8186 Voltorb Chromebooks
arm64: dts: mediatek: Makefile: Generate symbols for DTBO support
arm64: dts: mediatek: mt8183-kukui-jacuzzi: Add ports node for anx7625
arm64: dts: mediatek: mt8183-pico6: Fix wake-on-X event node names
arm64: dts: mt8173: Add G2Touch touchscreen node
arm64: dts: mediatek: mt8183-kukui: Fix the value of `dlg,jack-det-rate` mismatch
arm64: dts: mediatek: mt8188: Add support for Mali GPU on Panfrost
arm64: dts: mediatek: mt8188: Add support for SoC power domains
arm64: dts: mediatek: mt8188: Add VDOSYS0/1 support for multimedia
arm64: dts: mediatek: mt8188: Add Global Command Engine mailboxes
arm64: dts: mediatek: mt8173-elm: drop PMIC's syscon node
arm64: dts: mediatek: mt8365: use a specific SCPSYS compatible
arm64: dts: mediatek: mt8365: drop incorrect power-domain-cells
arm64: dts: mediatek: mt7981: add I2C controller
arm64: dts: mediatek: mt7622: fix "emmc" pinctrl mux
arm64: dts: mediatek: mt7988: add I2C controllers
arm64: dts: mediatek: mt7988: add PWM controller
...
Rob Herring [Thu, 27 Jun 2024 19:57:38 +0000 (21:57 +0200)]
arm: dts: arm: Drop redundant fixed-factor clocks
There's not much reason to have multiple fixed-factor-clock instances
which are all the same factor and clock input. Drop the nodes, but keep
the labels to minimize the changes and keep some distinction of the
different clocks.
Raphael Gallais-Pou [Tue, 25 Jun 2024 21:32:42 +0000 (23:32 +0200)]
ARM: dts: sti: add thermal-zones support on stih418
Add a 'thermal-zones' node for stih418.
A thermal-zone needs three components:
- thermal sensors, described in an earlier commit[1]
- cooling devices, specified for each CPU
- a thermal zone, describing the overall behavior.
The thermal zone needs references to both CPUs and thermal sensors,
which phandle are also added. The thermal management will then be
achieved on CPUs using the cpufreq framework.
Arnd Bergmann [Thu, 27 Jun 2024 14:38:07 +0000 (16:38 +0200)]
Merge tag 'zynqmp-soc-for-6.11' of https://github.com/Xilinx/linux-xlnx into soc/dt
arm64: Xilinx DT changes for 6.11
- Add remoteproc TCM support
- Add coresight cpu debug support
- Describe OCM controller
- Disable Tri-state for SDIO on kv260
- Add compatibility strings for kv260 overlays
- Add support for k26-rev2 SOM
- Describe ina260/DP/TTC and PWM on kv260
DT schema alignments and fixes
- Align soc-nvmem binding with dt-schema
- Fix fpga region node
- Add description for efuses
- Describe USB wakeup interrupt
- Fix ams-pl node
* tag 'zynqmp-soc-for-6.11' of https://github.com/Xilinx/linux-xlnx:
arm64: zynqmp: Add pwm-fan node and fix ttc0 pwm-cells property
arm64: zynqmp: Add support for K26 rev2 boards
arm64: zynqmp: Describe DisplayPort connector for Kria
arm64: zynqmp: Add description for ina260 on kv260
arm64: zynqmp: Add compatible string for kv260
arm64: zynqmp: Disable Tri-state for SDIO
arm64: zynqmp: Remove address/size-cells from ams node
arm64: zynqmp: Describe OCM controller
arm64: zynqmp: Describe USB wakeup interrupt
arm64: zynqmp: Add missing description for efuses
arm64: zynqmp: Use fpga-region as node name
arm64: zynqmp: Align nvmem node with dt schema
arm64: zynqmp: Add coresight cpu debug support
dts: zynqmp: add properties for TCM in remoteproc
Arnd Bergmann [Thu, 27 Jun 2024 14:36:51 +0000 (16:36 +0200)]
Merge tag 'juno-updates-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/dt
Arm Juno updates for v6.11
Addition of dedicated FPGA syscon compatible for Juno platforms. Also
enablement of GPU device node now that the panfrost driver is already
enabled as a module in defconfig.
Arnd Bergmann [Thu, 27 Jun 2024 14:35:39 +0000 (16:35 +0200)]
Merge tag 'renesas-dts-for-v6.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into soc/dt
Renesas DTS updates for v6.11
- Add support for the second and third Ethernet interfaces on the
White Hawk development board,
- Add support for the second Ethernet interface on the RZ/N1 SoC,
- Add I2C EEPROM support for the Condor-I development board,
- Add video capture support for the R-Car V4M SoC,
- Miscellaneous fixes and improvements.
* tag 'renesas-dts-for-v6.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
arm64: dts: renesas: r8a779h0: Add video capture nodes
arm64: dts: renesas: r9a08g045: Update fallback string for SDHI nodes
arm64: dts: renesas: rzg2l: Update fallback string for SDHI nodes
arm64: dts: renesas: r9a09g011: Update fallback string for SDHI nodes
arm64: dts: renesas: s4sk: Add aliases for I2C buses
arm64: dts: renesas: spider-cpu: Add aliases for I2C buses
arm64: dts: renesas: white-hawk-cpu: Add aliases for I2C buses
arm64: dts: renesas: condor-i: Add I2C EEPROM
arm64: dts: renesas: gray-hawk-single: Add aliases for I2C buses
ARM: dts: renesas: r9a06g032: Describe GMAC1
arm64: dts: renesas: white-hawk: ethernet: Describe AVB1 and AVB2
arm64: dts: renesas: r8a779g0: Use MDIO node for all AVB devices
On some devicetrees, the drive-strength property gets assigned a
MTK_DRIVE_(x)_mA definition, which matches with (x).
For example, MTK_DRIVE_8mA equals to 8 and MTK_DRIVE_30mA equals
to 30.
Also keeping in mind that the drive-strength property is, by
(binding) definition, taking a number in milliamperes unit,
change all devicetrees to avoid the usage of any MTK_DRIVE_(x)
definition.
Add device trees for the MT8186 based Voltorb Chromebooks, also known
as the Acer Chromebook 311 (C723/C723T). The devices are clamshell
style laptops with an optional touchscreen.
The devices differ from the other existing MT8186 Chromebooks in that
it uses a higher speced / binned SoC which also requires a separate
PMIC for the big core cluster. Also, a different codec is used for
the internal speakers.
Add an entry for the MT8186 based Voltorb Chromebooks, also known as the
Acer Chromebook 311 (C723/C723T). The device is a clamshell style laptop
with an optional touchscreen.
AngeloGioacchino Del Regno [Thu, 20 Jun 2024 10:18:30 +0000 (12:18 +0200)]
arm64: dts: mediatek: Makefile: Generate symbols for DTBO support
Add DTC_FLAGS '-@' for mt7986a-bananapi-bpi-r3 and -mini to
instruct the devicetree compiler to enable generation of symbols.
This allows proper support for Device Tree Overlay(s) for those
boards; future boards that need DTBO support are expected to add
their own DTC_FLAGS_{dtb-name}.
The wake-on-bt and wake-on-wlan nodes don't have a button- or event-
prefix that the gpio-keys binding requires.
Fix up the node names to satisfy the binding. While at it, also fix up
the GPIO overriding structure for the wake-on-wlan node. Instead of
referencing the gpio-keys node and then open coding the node, add a
label for the event node, and use that to reference and override the
GPIO settings.
Fixes: 055ef10ccdd4 ("arm64: dts: mt8183: Add jacuzzi pico/pico6 board") Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240131084043.3970576-1-wenst@chromium.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Pin-yen Lin [Wed, 15 Nov 2023 04:35:01 +0000 (12:35 +0800)]
arm64: dts: mt8173: Add G2Touch touchscreen node
Lenovo Ideapad C330 Chromebook (MTK) uses G2Touch touchscreen as a
second source component.
Signed-off-by: Pin-yen Lin <treapking@chromium.org> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Link: https://lore.kernel.org/r/20231115043511.2670477-1-treapking@chromium.org
[Angelo: Rebased and added comment] Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Hsin-Te Yuan [Thu, 13 Jun 2024 11:58:54 +0000 (11:58 +0000)]
arm64: dts: mediatek: mt8183-kukui: Fix the value of `dlg,jack-det-rate` mismatch
According to Documentation/devicetree/bindings/sound/dialog,da7219.yaml,
the value of `dlg,jack-det-rate` property should be "32_64" instead of
"32ms_64ms".
AngeloGioacchino Del Regno [Mon, 27 May 2024 09:39:08 +0000 (11:39 +0200)]
arm64: dts: mediatek: mt8188: Add support for Mali GPU on Panfrost
Add the necessary OPP table for the GPU and also add a GPU node
to enable support for the Valhall-JM G57 MC3 found on this SoC,
using the Panfrost driver.
Krzysztof Kozlowski [Wed, 12 Jun 2024 09:24:21 +0000 (11:24 +0200)]
arm64: dts: mediatek: mt8173-elm: drop PMIC's syscon node
According to AngeloGioacchino Del Regno, the syscon node in PMIC is
neither needed nor used. It looks like a solution to expose some of the
registers of PMIC.
Drop it to solve also incorrect number of entries in the "reg" property
and fix dtbs_check warning:
mt8173-elm.dtb: syscon@c000: reg: [[0, 49152], [0, 264]] is too long
Krzysztof Kozlowski [Wed, 12 Jun 2024 09:24:20 +0000 (11:24 +0200)]
arm64: dts: mediatek: mt8365: use a specific SCPSYS compatible
SoCs should use dedicated compatibles for each of their syscon nodes to
precisely describe the block. Using an incorrect compatible does not
allow to properly match/validate children of the syscon device. Replace
SYSCFG compatible, which does not have children, with a new dedicated
one for SCPSYS block.
Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com> Tested-by: Alexandre Mergnat <amergnat@baylibre.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240612092421.52917-2-krzysztof.kozlowski@linaro.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Rafał Miłecki [Tue, 4 Jun 2024 06:31:59 +0000 (08:31 +0200)]
arm64: dts: mediatek: mt7981: add I2C controller
MT7981 has one on-SoC I2C controller that differs from recent Mediatek
blocks by having a different SLAVE_ADDR register offset (thus a custom
binding compatible string).
Value "emmc_rst" is a group name and should be part of the "groups"
property.
This fixes:
arch/arm64/boot/dts/mediatek/mt7622-rfb1.dtb: pinctrl@10211000: emmc-pins-default:mux:function: ['emmc', 'emmc_rst'] is too long
from schema $id: http://devicetree.org/schemas/pinctrl/mediatek,mt7622-pinctrl.yaml#
arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dtb: pinctrl@10211000: emmc-pins-default:mux:function: ['emmc', 'emmc_rst'] is too long
from schema $id: http://devicetree.org/schemas/pinctrl/mediatek,mt7622-pinctrl.yaml#
Fixes: 3725ba3f5574 ("arm64: dts: mt7622: add pinctrl related device nodes") Fixes: 0b6286dd96c0 ("arm64: dts: mt7622: add bananapi BPI-R64 board") Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240604074916.7929-1-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Rafał Miłecki [Mon, 27 May 2024 11:59:33 +0000 (13:59 +0200)]
arm64: dts: mediatek: Add OpenWrt One
OpenWrt One is the first ever OpenWrt product. It's based on MT7981B
(AKA Filogic 820) and has 1 GiB or DDR4 RAM. The rest of peripherals
remains to be added later.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240527115933.7396-4-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Rafał Miłecki [Mon, 27 May 2024 11:59:32 +0000 (13:59 +0200)]
dt-bindings: arm64: dts: mediatek: Add OpenWrt One
OpenWrt One is the first ever OpenWrt product. It's based on MT7981B and
has entered an early production stage.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240527115933.7396-3-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Rafał Miłecki [Mon, 27 May 2024 11:59:31 +0000 (13:59 +0200)]
dt-bindings: vendor-prefixes: add OpenWrt
OpenWrt project (with the help of MediaTek and Banana Pi) has produced
its very first own hardware. It needs its own prefix.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240527115933.7396-2-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Co-developed-by: Eric Woudstra <ericwouds@gmail.com> Signed-off-by: Eric Woudstra <ericwouds@gmail.com> Co-developed-by: Tianling Shen <cnsztl@gmail.com> Signed-off-by: Tianling Shen <cnsztl@gmail.com> Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Reviewed-by: Daniel Golle <daniel@makrotopia.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240510095707.6895-3-linux@fw-web.de Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Frank Wunderlich [Fri, 10 May 2024 09:57:06 +0000 (11:57 +0200)]
dt-bindings: arm64: mediatek: add BananaPi R3 Mini
Add MT7988A based BananaPi R3 Mini.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240510095707.6895-2-linux@fw-web.de Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Rafał Miłecki [Tue, 14 May 2024 01:51:54 +0000 (03:51 +0200)]
arm64: dts: mediatek: mt7981: add efuse block
MT7981 (Filogic 820) uses efuse for storing calibration data.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240514015154.11206-2-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Geert Uytterhoeven [Wed, 29 May 2024 12:06:14 +0000 (14:06 +0200)]
arm64: dts: mediatek: mt7986a: bpi-r3: Convert to sugar syntax
Overlay syntactic sugar for generating target-path fragments is
supported by the version of dtc supplied with the kernel since commit 50aafd60898a8b3e ("scripts/dtc: Update to upstream version v1.4.6-21-g84e414b0b5bc"). Hence convert the Bananapi R3 overlay
devicetree source files to sugar syntax, improving readability.
Pin-yen Lin [Thu, 2 May 2024 15:39:51 +0000 (23:39 +0800)]
arm64: dts: mediatek: mt8192-asurada: Add off-on-delay-us for pp3300_mipibrdg
Set off-on-delay-us to 500000 us for pp3300_mipibrdg to make sure it
complies with the panel's unprepare delay (the time to power down
completely) of the power sequence. Explicit configuration on the
regulator node is required because mt8192-asurada uses the same power
supply for the panel and the anx7625 DP bridge.
For example, the power sequence could be violated in this sequence:
1. Bridge on: panel goes off, but regulator doesn't turn off (refcount=1).
2. Bridge off: regulator turns off (refcount=0).
3. Bridge resume -> regulator turns on but the bridge driver doesn't
check the delay.
Or in this sequence:
1. Bridge on: panel goes off. The regulator doesn't turn off (refcount=1),
but the .unprepared_time in panel_edp is still updated.
2. Bridge off, regulator goes off (refcount=0).
3. Panel on, but the panel driver uses the wrong .unprepared_time to check
the unprepare delay.
Fixes: f9f00b1f6b9b ("arm64: dts: mediatek: asurada: Add display regulators") Signed-off-by: Pin-yen Lin <treapking@chromium.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240502154455.3427793-1-treapking@chromium.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Michael Walle [Mon, 8 Apr 2024 08:08:16 +0000 (10:08 +0200)]
arm64: dts: mediatek: add Kontron 3.5"-SBC-i1200
Add basic support for the Kontron 3.5" single board computer featuring a
Mediatek i1200 SoC (MT8395/MT8195).
Signed-off-by: Michael Walle <mwalle@kernel.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240408080816.4134370-2-mwalle@kernel.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Add the compatible string for the Kontron 3.5"-SBC-i1200 single board
computer.
Signed-off-by: Michael Walle <mwalle@kernel.org> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240408080816.4134370-1-mwalle@kernel.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Macpaul Lin [Fri, 16 Feb 2024 09:57:51 +0000 (17:57 +0800)]
arm64: dts: mediatek: mt8395-genio-1200-evk: add u3port1 for xhci1
This patch fixes an issue where xhci1 was not functioning properly because
the state and PHY settings were incorrect.
The introduction of the 'force-mode' property in the phy-mtk-tphy driver
allows for the correct initialization of xhci1 by updating the Device Tree
settings accordingly.
The necessary fixup which added support for the 'force-mode' switch in the
phy-mtk-tphy driver.
commit 9b27303003f5 ("phy: mediatek: tphy: add support force phy mode switch") Link: https://lore.kernel.org/r/20231211025624.28991-2-chunfeng.yun@mediatek.com
Prior to this fix, the system would exhibit the following probe failure messages
for xhci1:
xhci-mtk 11290000.usb: supply vbus not found, using dummy regulator
xhci-mtk 11290000.usb: uwk - reg:0x400, version:104
xhci-mtk 11290000.usb: xHCI Host Controller
xhci-mtk 11290000.usb: new USB bus registered, assigned bus number 5
xhci-mtk 11290000.usb: clocks are not stable (0x1003d0f)
xhci-mtk 11290000.usb: can't setup: -110
xhci-mtk 11290000.usb: USB bus 5 deregistered
xhci-mtk: probe of 11290000.usb failed with error -110
With the application of this dts fixup, the aforementioned initialization errors
are resolved and xhci1 is working.
AngeloGioacchino Del Regno [Thu, 14 Mar 2024 10:35:00 +0000 (11:35 +0100)]
arm64: mediatek: mt8195-cherry: Introduce the MT8195 Dojo Chromebook
Add a devicetree for the Cherry Dojo (HP Chromebook x360 13b-ca0002sa)
convertible type machine.
Differences with the already supported Tomato machines include:
- Different speaker amplifiers (Dual MAX98380, one per channel)
- I2C Touchscreen is on a different address (though still a HID device)
- Has NVMe storage on the PCIe0 controller
- Slightly different keyboard top row keymap
AngeloGioacchino Del Regno [Tue, 16 Apr 2024 07:14:10 +0000 (09:14 +0200)]
arm64: dts: mediatek: mt8186-corsola: Specify sound DAI links and routing
The drivers and bindings acquired support for specifying audio hardware
and links in device tree: describe and link the sound related HW of this
machine.
AngeloGioacchino Del Regno [Tue, 16 Apr 2024 07:14:09 +0000 (09:14 +0200)]
arm64: dts: mediatek: mt8195-cherry: Specify sound DAI links and routing
The drivers and bindings acquired support for specifying audio hardware
and links in device tree: describe and link the sound related HW of this
machine.
arm64: dts: mediatek: mt8183-kukui: Drop bogus output-enable property
The "output-enable" property is set on uart1's RTS pin. This is bogus
because the hardware does not actually have a controllable output
buffer. Secondly, the implementation incorrectly treats this property
as a request to switch the pin to GPIO output. This does not fit the
intended semantic of "output-enable" and it does not have any affect
either because the pin is muxed to the UART function, not the GPIO
function.
AngeloGioacchino Del Regno [Tue, 9 Apr 2024 11:42:10 +0000 (13:42 +0200)]
arm64: dts: mediatek: mt8395-nio-12l: Enable PHYs and USB role switch
Enable the PCIe0 PHY to be able to set calibrations read from eFuses,
improving the stability and performance of the PCIe link.
While at it, also enable the T-PHYs for both PCIe1 and for USB, allowing
the USB ports to finally switch to gadget mode if needed, and configure
the VBUS/ID pins of both USB ports for the same.
AngeloGioacchino Del Regno [Tue, 9 Apr 2024 11:42:09 +0000 (13:42 +0200)]
arm64: dts: mediatek: mt8395-nio-12l: Define RSEL in microamperes
The paris pinctrl driver supports specifying the RSEL drive strength
in microamperes as well as internal bits definitions: choose to specify
those in uA to avoid using hardware specific values in device trees.
AngeloGioacchino Del Regno [Tue, 9 Apr 2024 11:42:08 +0000 (13:42 +0200)]
arm64: dts: medaitek: mt8395-nio-12l: Set i2c6 pins to bias-disable
GPIOs 25 and 26 do not support pull-up/pull-down when those are muxed
as I2C6's SDA6/SCL6 lines: set those to bias-disable to avoid warning
messages from the pinctrl driver.
AngeloGioacchino Del Regno [Wed, 10 Apr 2024 08:30:02 +0000 (10:30 +0200)]
arm64: dts: mediatek: mt8183: Refactor thermal zones
The thermal zones in MT8183 had cryptic names and all of them, apart
from the cpu-thermal zone, had no thermal trips, hence those were not
probed at all.
Refactor the tzts1..5 and tztsABB thermal zones to add the correct
thermal trips and give them a meaningful name, corresponding to the
actually monitored thermal zone.
While at it, also rename the thermal sensor node to "thermal-sensor".
Now the thermal zones are probing and their temperatures can be read.
Macpaul Lin [Fri, 15 Sep 2023 08:12:12 +0000 (16:12 +0800)]
arm64: dts: mediatek: add device-tree for Genio 700 EVK board
Add basic device-tree for the Genio 700 EVK board. The
Genio 700 EVK is based on MediaTek MT8390 SoC.
MT8390 hardware register maps are identical to MT8188.
The Genio 700 EVK has following features:
- MT8390 SoC
- MT6365 PMIC
- MT6319 Buck IC
- 12V DC Jack
- 2x4GB LPDDR4X
- 64GB eMMC 5.1
- 64Mb SPI NOR
- M.2 Key A-E slot with PCIe Gen2 and USB 2.0
- 2x DSI LCM ports
- 2x touch sensor ports
- 2x MIPI-CSI, as camera daughter board slots
- USB 2 micro USB connector
- USB 3 with 1 to 2 hub:
- M.2 Key B slot
- Type-C connector, with DisplayPort over Type-C
- HDMI 2.0 TX port with Type A HDMI connector
- eDP port
- Gigabit Ethernet with RJ45 connector
- SD card slot
- Earphone Jack
- Analog Microphone
- 2x Digital Microphone
- 3x UART with serial-to-usb converters and micro USB connectors
Signed-off-by: Chris-QJ Chen <chris-qj.chen@mediatek.com> Signed-off-by: Pablo Sun <pablo.sun@mediatek.com> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230915081212.13959-2-macpaul.lin@mediatek.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
1. Add compatible for MT8390.
2. Add bindings for the MediaTek mt8390-evk board, also known
as the "Genio 700-EVK".
The MT8390 and MT8188 belong to the same SoC family,
with only minor differences in their physical characteristics.
They utilize unique efuse values for differentiation.
The booting process and configurations are managed by boot
loaders, firmware, and TF-A. Consequently, the part numbers
and procurement channels vary.
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230915081212.13959-1-macpaul.lin@mediatek.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
MT7981 (Filogic 820) is a low cost version of MT7986 (Filogic 830) with
the same watchdog controller. It also comes with on-SoC 802.11ax
wireless.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240221085547.27840-1-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240213130044.1976-2-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Daniel Danzberger [Sat, 9 Mar 2024 09:32:15 +0000 (10:32 +0100)]
arm64: dts: Add Airoha EN7581 SoC and EN7581 Evaluation Board
Introduce the Airoha EN7581 SoC's dtsi and the Airoha EN7581 Evaluation
Board's dts file, as well as the required Makefiles.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Daniel Danzberger <dd@embedd.com> Co-developed-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/f05a36dd7e8ef34ead8a63aa10fcffb542229404.1709975956.git.lorenzo@kernel.org Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Rafał Miłecki [Sun, 17 Mar 2024 22:32:06 +0000 (23:32 +0100)]
arm64: dts: mediatek: Add Cudy WR3000 V1
Cudy WR3000 V1 is an MT7981B (AKA Filogic 820) based wireless router. It
has 256 MiB of RAM, some LEDs & buttons and (not described yet) 4
Ethernet ports.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240317223206.22033-5-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Rafał Miłecki [Sun, 17 Mar 2024 22:32:05 +0000 (23:32 +0100)]
arm64: dts: mediatek: mt7981: add pinctrl
MT7981 contains on-SoC PIN controller that is also a GPIO provider.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240317223206.22033-4-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cudy WR3000 V1 is an MT7981B (AKA Filogic 820) based wireless router.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240317223206.22033-3-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Rafał Miłecki [Sun, 17 Mar 2024 22:32:03 +0000 (23:32 +0100)]
dt-bindings: vendor-prefixes: add Cudy
Cudy is a Chinese company providing networking products.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240317223206.22033-2-zajec5@gmail.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
On some devicetrees, the drive-strength property gets assigned a
MTK_DRIVE_(x)_mA definition, which matches with (x).
For example, MTK_DRIVE_8mA equals to 8 and MTK_DRIVE_30mA equals
to 30.
Also keeping in mind that the drive-strength property is, by
(binding) definition, taking a number in milliamperes unit,
change all devicetrees to avoid the usage of any MTK_DRIVE_(x)
definition.
Linus Torvalds [Sun, 23 Jun 2024 15:06:01 +0000 (11:06 -0400)]
Merge tag 'i2c-for-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"The core gains placeholders for recently added functions when
CONFIG_I2C is not defined as well documentation fixes to start using
inclusive terminology.
The drivers get paths in DT bindings fixed as well as proper interrupt
handling for the ocores driver"
* tag 'i2c-for-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
docs: i2c: summary: be clearer with 'controller/target' and 'adapter/client' pairs
docs: i2c: summary: document 'local' and 'remote' targets
docs: i2c: summary: document use of inclusive language
docs: i2c: summary: update speed mode description
docs: i2c: summary: update I2C specification link
docs: i2c: summary: start sentences consistently.
i2c: Add nop fwnode operations
i2c: ocores: set IACK bit after core is enabled
dt-bindings: i2c: google,cros-ec-i2c-tunnel: correct path to i2c-controller schema
dt-bindings: i2c: atmel,at91sam: correct path to i2c-controller schema
Linus Torvalds [Sun, 23 Jun 2024 15:01:57 +0000 (11:01 -0400)]
Merge tag '6.10-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"Five smb3 client fixes
- three nets/fiolios cifs fixes
- fix typo in module parameters description
- fix incorrect swap warning"
* tag '6.10-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: Move the 'pid' from the subreq to the req
cifs: Only pick a channel once per read request
cifs: Defer read completion
cifs: fix typo in module parameter enable_gcm_256
cifs: drop the incorrect assertion in cifs_swap_rw()
Linus Torvalds [Sun, 23 Jun 2024 14:32:24 +0000 (10:32 -0400)]
Merge tag 'fixes-2024-06-23' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock fix from Mike Rapoport:
"Fix fragility in checks for unset node ID.
Use numa_valid_node() function to verify that nid is a valid node
ID instead of inconsistent comparisons with either NUMA_NO_NODE or
MAX_NUMNODES"
* tag 'fixes-2024-06-23' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
memblock: use numa_valid_node() helper to check for invalid node ID
Linus Torvalds [Sun, 23 Jun 2024 14:13:23 +0000 (07:13 -0700)]
Merge tag 'powerpc-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Prevent use-after-free in 64-bit KVM VFIO
- Add generated Power8 crypto asm to .gitignore
Thanks to Al Viro and Nathan Lynch.
* tag 'powerpc-6.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
KVM: PPC: Book3S HV: Prevent UAF in kvm_spapr_tce_attach_iommu_group()
powerpc/crypto: Add generated P8 asm to .gitignore
Wolfram Sang [Sun, 23 Jun 2024 00:13:27 +0000 (02:13 +0200)]
Merge tag 'i2c-host-fixes-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
This pull request fixes the paths of the dt-schema to their
complete locations for the ChromeOS EC tunnel driver and the
Atmel at91sam drivers.
Additionally, the OpenCores driver receives a fix for an issue
that dates back to version 2.6.18. Specifically, the interrupts
need to be acknowledged (clearing all pending interrupts) after
enabling the core.
Linus Torvalds [Sat, 22 Jun 2024 21:02:16 +0000 (14:02 -0700)]
Merge tag 'regulator-fix-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"A few driver specific fixes for incorrect device descriptions, plus a
fix for a missing symbol export which causes build failures for some
newly added drivers in other trees"
* tag 'regulator-fix-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: axp20x: AXP717: fix LDO supply rails and off-by-ones
regulator: bd71815: fix ramp values
regulator: core: Fix modpost error "regulator_get_regmap" undefined
regulator: tps6594-regulator: Fix the number of irqs for TPS65224 and TPS6594
Linus Torvalds [Sat, 22 Jun 2024 20:58:47 +0000 (13:58 -0700)]
Merge tag 'spi-fix-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A number of fixes that have built up for SPI, a bunch of driver
specific ones including an unfortunate revert of an optimisation for
the i.MX driver which was causing issues with some configurations,
plus a couple of core fixes for the rarely used octal mode and for a
bad interaction between multi-CS support and target mode"
* tag 'spi-fix-v6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: spi-imx: imx51: revert burst length calculation back to bits_per_word
spi: Fix SPI slave probe failure
spi: Fix OCTAL mode support
spi: stm32: qspi: Clamp stm32_qspi_get_mode() output to CCR_BUSWIDTH_4
spi: stm32: qspi: Fix dual flash mode sanity test in stm32_qspi_setup()
spi: cs42l43: Drop cs35l56 SPI speed down to 11MHz
spi: cs42l43: Correct SPI root clock speed
Linus Torvalds [Sat, 22 Jun 2024 20:55:56 +0000 (13:55 -0700)]
Merge tag 'nfsd-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd fixes from Chuck Lever:
- Fix crashes triggered by administrative operations on the server
* tag 'nfsd-6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
NFSD: grab nfsd_mutex in nfsd_nl_rpc_status_get_dumpit()
nfsd: fix oops when reading pool_stats before server is started
Linus Torvalds [Sat, 22 Jun 2024 16:02:39 +0000 (09:02 -0700)]
Merge tag 'bcachefs-2024-06-22' of https://evilpiepirate.org/git/bcachefs
Pull bcachefs fixes from Kent Overstreet:
"Lots of (mostly boring) fixes for syzbot bugs and rare(r) CI bugs.
The LRU_TIME_BITS fix was slightly more involved; we only have 48 bits
for the LRU position (we would prefer 64), so wraparound is possible
for the cached data LRUs on a filesystem that has done sufficient
(petabytes) reads; this is now handled.
One notable user reported bugfix, where we were forgetting to
correctly set the bucket data type, which should have been
BCH_DATA_need_gc_gens instead of BCH_DATA_free; this was causing us to
go emergency read-only on a filesystem that had seen heavy enough use
to see bucket gen wraparoud.
We're now starting to fix simple (safe) errors without requiring user
intervention - i.e. a small incremental step towards full self
healing.
This is currently limited to just certain allocation information
counters, and the error is still logged in the superblock; see that
patch for more information. ("bcachefs: Fix safe errors by default")"
* tag 'bcachefs-2024-06-22' of https://evilpiepirate.org/git/bcachefs: (22 commits)
bcachefs: Move the ei_flags setting to after initialization
bcachefs: Fix a UAF after write_super()
bcachefs: Use bch2_print_string_as_lines for long err
bcachefs: Fix I_NEW warning in race path in bch2_inode_insert()
bcachefs: Replace bare EEXIST with private error codes
bcachefs: Fix missing alloc_data_type_set()
closures: Change BUG_ON() to WARN_ON()
bcachefs: fix alignment of VMA for memory mapped files on THP
bcachefs: Fix safe errors by default
bcachefs: Fix bch2_trans_put()
bcachefs: set_worker_desc() for delete_dead_snapshots
bcachefs: Fix bch2_sb_downgrade_update()
bcachefs: Handle cached data LRU wraparound
bcachefs: Guard against overflowing LRU_TIME_BITS
bcachefs: delete_dead_snapshots() doesn't need to go RW
bcachefs: Fix early init error path in journal code
bcachefs: Check for invalid btree IDs
bcachefs: Fix btree ID bitmasks
bcachefs: Fix shift overflow in read_one_super()
bcachefs: Fix a locking bug in the do_discard_fast() path
...
Linus Torvalds [Sat, 22 Jun 2024 15:16:17 +0000 (08:16 -0700)]
Merge tag 'ata-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux
Pull ata fix from Niklas Cassel:
- We currently enable DIPM (device initiated power management) in the
device (using a SET FEATURES call to the device), regardless if the
HBA supports any LPM states or not. It seems counter intuitive, and
potentially dangerous to enable a device side feature, when the HBA
does not have the corresponding support. Thus, make sure that we do
not enable DIPM if the HBA does not support any LPM states.
* tag 'ata-6.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
ata: ahci: Do not enable LPM if no LPM states are supported by the HBA
Linus Torvalds [Sat, 22 Jun 2024 15:03:47 +0000 (08:03 -0700)]
Merge tag 'pwm/for-6.10-rc5-fixes-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux
Pull pwm fixes from Uwe Kleine-König:
"Three fixes for the pwm-stm32 driver.
The first patch prevents an integer wrap-around for small periods. In
the second patch the calculation of the prescaler is fixed which
resulted in values for the ARR register that don't fit into the
corresponding register bit field. The last commit improves an error
message that was wrongly copied from another error path"
* tag 'pwm/for-6.10-rc5-fixes-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
pwm: stm32: Fix error message to not describe the previous error path
pwm: stm32: Fix calculation of prescaler
pwm: stm32: Refuse too small period requests
Linus Torvalds [Sat, 22 Jun 2024 14:58:21 +0000 (07:58 -0700)]
Merge tag 'arm-fixes-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"There are seven oneline patches that each address a distinct problem
on the NXP i.MX platform, mostly the popular i.MX8M variant.
The only other two fixes are for error handling on the psci firmware
driver and SD card support on the milkv duo riscv board"
* tag 'arm-fixes-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
firmware: psci: Fix return value from psci_system_suspend()
riscv: dts: sophgo: disable write-protection for milkv duo
arm64: dts: imx8qm-mek: fix gpio number for reg_usdhc2_vmmc
arm64: dts: freescale: imx8mm-verdin: enable hysteresis on slow input pin
arm64: dts: imx93-11x11-evk: Remove the 'no-sdio' property
arm64: dts: freescale: imx8mp-venice-gw73xx-2x: fix BT shutdown GPIO
arm: dts: imx53-qsb-hdmi: Disable panel instead of deleting node
arm64: dts: imx8mp: Fix TC9595 input clock on DH i.MX8M Plus DHCOM SoM
arm64: dts: freescale: imx8mm-verdin: Fix GPU speed
Linus Torvalds [Sat, 22 Jun 2024 14:41:57 +0000 (07:41 -0700)]
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix dangling references to a redistributor region if the vgic was
prematurely destroyed.
- Properly mark FFA buffers as released, ensuring that both parties
can make forward progress.
x86:
- Allow getting/setting MSRs for SEV-ES guests, if they're using the
pre-6.9 KVM_SEV_ES_INIT API.
- Always sync pending posted interrupts to the IRR prior to IOAPIC
route updates, so that EOIs are intercepted properly if the old
routing table requested that.
Generic:
- Avoid __fls(0)
- Fix reference leak on hwpoisoned page
- Fix a race in kvm_vcpu_on_spin() by ensuring loads and stores are
atomic.
- Fix bug in __kvm_handle_hva_range() where KVM calls a function
pointer that was intended to be a marker only (nothing bad happens
but kind of a mine and also technically undefined behavior)
- Do not bother accounting allocations that are small and freed
before getting back to userspace.
Selftests:
- Fix compilation for RISC-V.
- Fix a "shift too big" goof in the KVM_SEV_INIT2 selftest.
- Compute the max mappable gfn for KVM selftests on x86 using
GuestMaxPhyAddr from KVM's supported CPUID (if it's available)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: SEV-ES: Fix svm_get_msr()/svm_set_msr() for KVM_SEV_ES_INIT guests
KVM: Discard zero mask with function kvm_dirty_ring_reset
virt: guest_memfd: fix reference leak on hwpoisoned page
kvm: do not account temporary allocations to kmem
MAINTAINERS: Drop Wanpeng Li as a Reviewer for KVM Paravirt support
KVM: x86: Always sync PIR to IRR prior to scanning I/O APIC routes
KVM: Stop processing *all* memslots when "null" mmu_notifier handler is found
KVM: arm64: FFA: Release hyp rx buffer
KVM: selftests: Fix RISC-V compilation
KVM: arm64: Disassociate vcpus from redistributor region on teardown
KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin()
KVM: selftests: x86: Prioritize getting max_gfn from GuestPhysBits
KVM: selftests: Fix shift of 32 bit unsigned int more than 32 bits
Uwe Kleine-König [Fri, 21 Jun 2024 14:37:14 +0000 (16:37 +0200)]
pwm: stm32: Fix error message to not describe the previous error path
"Failed to lock the clock" is an appropriate error message for
clk_rate_exclusive_get() failing, but not for the clock running too
fast for the driver's calculations.
Uwe Kleine-König [Fri, 21 Jun 2024 14:37:13 +0000 (16:37 +0200)]
pwm: stm32: Fix calculation of prescaler
A small prescaler is beneficial, as this improves the resolution of the
duty_cycle configuration. However if the prescaler is too small, the
maximal possible period becomes considerably smaller than the requested
value.
One situation where this goes wrong is the following: With a parent
clock rate of 208877930 Hz and max_arr = 0xffff = 65535, a request for
period = 941243 ns currently results in PSC = 1. The value for ARR is
then calculated to
This value is bigger than 65535 however and so doesn't fit into the
respective register field. In this particular case the PWM was
configured for a period of 313733.4806027616 ns (with ARR = 98301 &
0xffff). Even if ARR was configured to its maximal value, only period =
627495.6861167669 ns would be achievable.
Fix the calculation accordingly and adapt the comment to match the new
algorithm.
With the calculation fixed the above case results in PSC = 2 and so an
actual period of 941229.1667195285 ns.
projects / linux.git / log