clk: mediatek: Add MT8196 ovl1 clock support

Add support for the MT8196 ovl1 clock controller, which provides clock
gate control for the display system. It is integrated with the mtk-mmsys
driver, which registers the ovl1 clock driver via
platform_device_register_data().

Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Laura Nao <laura.nao@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index f42e29fcb19a5c56182944b4146703adfd98865a..f3afd34311c8375223e72cb109e1c33964ef1b28 100644 (file)
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -158,7 +158,7 @@ obj-$(CONFIG_COMMON_CLK_MT8196_MCUSYS) += clk-mt8196-mcu.o
 obj-$(CONFIG_COMMON_CLK_MT8196_MDPSYS) += clk-mt8196-mdpsys.o
 obj-$(CONFIG_COMMON_CLK_MT8196_MFGCFG) += clk-mt8196-mfg.o
 obj-$(CONFIG_COMMON_CLK_MT8196_MMSYS) += clk-mt8196-disp0.o clk-mt8196-disp1.o clk-mt8196-vdisp_ao.o \
-                                        clk-mt8196-ovl0.o
+                                        clk-mt8196-ovl0.o clk-mt8196-ovl1.o
 obj-$(CONFIG_COMMON_CLK_MT8196_PEXTPSYS) += clk-mt8196-pextp.o
 obj-$(CONFIG_COMMON_CLK_MT8196_UFSSYS) += clk-mt8196-ufs_ao.o
 obj-$(CONFIG_COMMON_CLK_MT8365) += clk-mt8365-apmixedsys.o clk-mt8365.o

diff --git a/drivers/clk/mediatek/clk-mt8196-ovl1.c b/drivers/clk/mediatek/clk-mt8196-ovl1.c
new file mode 100644 (file)
index 0000000..c8843d0
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8196-ovl1.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2025 MediaTek Inc.
+ *                    Guangjie Song <guangjie.song@mediatek.com>
+ * Copyright (c) 2025 Collabora Ltd.
+ *                    Laura Nao <laura.nao@collabora.com>
+ */
+#include <dt-bindings/clock/mediatek,mt8196-clock.h>
+
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+static const struct mtk_gate_regs ovl10_cg_regs = {
+       .set_ofs = 0x104,
+       .clr_ofs = 0x108,
+       .sta_ofs = 0x100,
+};
+
+static const struct mtk_gate_regs ovl10_hwv_regs = {
+       .set_ofs = 0x0050,
+       .clr_ofs = 0x0054,
+       .sta_ofs = 0x2c28,
+};
+
+static const struct mtk_gate_regs ovl11_cg_regs = {
+       .set_ofs = 0x114,
+       .clr_ofs = 0x118,
+       .sta_ofs = 0x110,
+};
+
+static const struct mtk_gate_regs ovl11_hwv_regs = {
+       .set_ofs = 0x0058,
+       .clr_ofs = 0x005c,
+       .sta_ofs = 0x2c2c,
+};
+
+#define GATE_HWV_OVL10(_id, _name, _parent, _shift) {  \
+               .id = _id,                              \
+               .name = _name,                          \
+               .parent_name = _parent,                 \
+               .regs = &ovl10_cg_regs,                 \
+               .hwv_regs = &ovl10_hwv_regs,            \
+               .shift = _shift,                        \
+               .ops = &mtk_clk_gate_hwv_ops_setclr,    \
+               .flags =  CLK_OPS_PARENT_ENABLE,        \
+       }
+
+#define GATE_HWV_OVL11(_id, _name, _parent, _shift) {  \
+               .id = _id,                              \
+               .name = _name,                          \
+               .parent_name = _parent,                 \
+               .regs = &ovl11_cg_regs,                 \
+               .hwv_regs = &ovl11_hwv_regs,            \
+               .shift = _shift,                        \
+               .ops = &mtk_clk_gate_hwv_ops_setclr,    \
+               .flags = CLK_OPS_PARENT_ENABLE,         \
+       }
+
+static const struct mtk_gate ovl1_clks[] = {
+       /* OVL10 */
+       GATE_HWV_OVL10(CLK_OVL1_OVLSYS_CONFIG, "ovl1_ovlsys_config", "disp", 0),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_FAKE_ENG0, "ovl1_ovl_fake_eng0", "disp", 1),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_FAKE_ENG1, "ovl1_ovl_fake_eng1", "disp", 2),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_MUTEX0, "ovl1_ovl_mutex0", "disp", 3),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA0, "ovl1_ovl_exdma0", "disp", 4),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA1, "ovl1_ovl_exdma1", "disp", 5),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA2, "ovl1_ovl_exdma2", "disp", 6),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA3, "ovl1_ovl_exdma3", "disp", 7),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA4, "ovl1_ovl_exdma4", "disp", 8),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA5, "ovl1_ovl_exdma5", "disp", 9),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA6, "ovl1_ovl_exdma6", "disp", 10),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA7, "ovl1_ovl_exdma7", "disp", 11),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA8, "ovl1_ovl_exdma8", "disp", 12),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_EXDMA9, "ovl1_ovl_exdma9", "disp", 13),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER0, "ovl1_ovl_blender0", "disp", 14),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER1, "ovl1_ovl_blender1", "disp", 15),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER2, "ovl1_ovl_blender2", "disp", 16),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER3, "ovl1_ovl_blender3", "disp", 17),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER4, "ovl1_ovl_blender4", "disp", 18),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER5, "ovl1_ovl_blender5", "disp", 19),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER6, "ovl1_ovl_blender6", "disp", 20),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER7, "ovl1_ovl_blender7", "disp", 21),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER8, "ovl1_ovl_blender8", "disp", 22),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_BLENDER9, "ovl1_ovl_blender9", "disp", 23),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_OUTPROC0, "ovl1_ovl_outproc0", "disp", 24),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_OUTPROC1, "ovl1_ovl_outproc1", "disp", 25),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_OUTPROC2, "ovl1_ovl_outproc2", "disp", 26),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_OUTPROC3, "ovl1_ovl_outproc3", "disp", 27),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_OUTPROC4, "ovl1_ovl_outproc4", "disp", 28),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_OUTPROC5, "ovl1_ovl_outproc5", "disp", 29),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_MDP_RSZ0, "ovl1_ovl_mdp_rsz0", "disp", 30),
+       GATE_HWV_OVL10(CLK_OVL1_OVL_MDP_RSZ1, "ovl1_ovl_mdp_rsz1", "disp", 31),
+       /* OVL11 */
+       GATE_HWV_OVL11(CLK_OVL1_OVL_DISP_WDMA0, "ovl1_ovl_disp_wdma0", "disp", 0),
+       GATE_HWV_OVL11(CLK_OVL1_OVL_DISP_WDMA1, "ovl1_ovl_disp_wdma1", "disp", 1),
+       GATE_HWV_OVL11(CLK_OVL1_OVL_UFBC_WDMA0, "ovl1_ovl_ufbc_wdma0", "disp", 2),
+       GATE_HWV_OVL11(CLK_OVL1_OVL_MDP_RDMA0, "ovl1_ovl_mdp_rdma0", "disp", 3),
+       GATE_HWV_OVL11(CLK_OVL1_OVL_MDP_RDMA1, "ovl1_ovl_mdp_rdma1", "disp", 4),
+       GATE_HWV_OVL11(CLK_OVL1_OVL_BWM0, "ovl1_ovl_bwm0", "disp", 5),
+       GATE_HWV_OVL11(CLK_OVL1_DLI0, "ovl1_dli0", "disp", 6),
+       GATE_HWV_OVL11(CLK_OVL1_DLI1, "ovl1_dli1", "disp", 7),
+       GATE_HWV_OVL11(CLK_OVL1_DLI2, "ovl1_dli2", "disp", 8),
+       GATE_HWV_OVL11(CLK_OVL1_DLI3, "ovl1_dli3", "disp", 9),
+       GATE_HWV_OVL11(CLK_OVL1_DLI4, "ovl1_dli4", "disp", 10),
+       GATE_HWV_OVL11(CLK_OVL1_DLI5, "ovl1_dli5", "disp", 11),
+       GATE_HWV_OVL11(CLK_OVL1_DLI6, "ovl1_dli6", "disp", 12),
+       GATE_HWV_OVL11(CLK_OVL1_DLI7, "ovl1_dli7", "disp", 13),
+       GATE_HWV_OVL11(CLK_OVL1_DLI8, "ovl1_dli8", "disp", 14),
+       GATE_HWV_OVL11(CLK_OVL1_DLO0, "ovl1_dlo0", "disp", 15),
+       GATE_HWV_OVL11(CLK_OVL1_DLO1, "ovl1_dlo1", "disp", 16),
+       GATE_HWV_OVL11(CLK_OVL1_DLO2, "ovl1_dlo2", "disp", 17),
+       GATE_HWV_OVL11(CLK_OVL1_DLO3, "ovl1_dlo3", "disp", 18),
+       GATE_HWV_OVL11(CLK_OVL1_DLO4, "ovl1_dlo4", "disp", 19),
+       GATE_HWV_OVL11(CLK_OVL1_DLO5, "ovl1_dlo5", "disp", 20),
+       GATE_HWV_OVL11(CLK_OVL1_DLO6, "ovl1_dlo6", "disp", 21),
+       GATE_HWV_OVL11(CLK_OVL1_DLO7, "ovl1_dlo7", "disp", 22),
+       GATE_HWV_OVL11(CLK_OVL1_DLO8, "ovl1_dlo8", "disp", 23),
+       GATE_HWV_OVL11(CLK_OVL1_DLO9, "ovl1_dlo9", "disp", 24),
+       GATE_HWV_OVL11(CLK_OVL1_DLO10, "ovl1_dlo10", "disp", 25),
+       GATE_HWV_OVL11(CLK_OVL1_DLO11, "ovl1_dlo11", "disp", 26),
+       GATE_HWV_OVL11(CLK_OVL1_DLO12, "ovl1_dlo12", "disp", 27),
+       GATE_HWV_OVL11(CLK_OVL1_OVLSYS_RELAY0, "ovl1_ovlsys_relay0", "disp", 28),
+       GATE_HWV_OVL11(CLK_OVL1_OVL_INLINEROT0, "ovl1_ovl_inlinerot0", "disp", 29),
+       GATE_HWV_OVL11(CLK_OVL1_SMI, "ovl1_smi", "disp", 30),
+};
+
+static const struct mtk_clk_desc ovl1_mcd = {
+       .clks = ovl1_clks,
+       .num_clks = ARRAY_SIZE(ovl1_clks),
+};
+
+static const struct platform_device_id clk_mt8196_ovl1_id_table[] = {
+       { .name = "clk-mt8196-ovl1", .driver_data = (kernel_ulong_t)&ovl1_mcd },
+       { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, clk_mt8196_ovl1_id_table);
+
+static struct platform_driver clk_mt8196_ovl1_drv = {
+       .probe = mtk_clk_pdev_probe,
+       .remove = mtk_clk_pdev_remove,
+       .driver = {
+               .name = "clk-mt8196-ovl1",
+       },
+       .id_table = clk_mt8196_ovl1_id_table,
+};
+module_platform_driver(clk_mt8196_ovl1_drv);
+
+MODULE_DESCRIPTION("MediaTek MT8196 ovl1 clocks driver");
+MODULE_LICENSE("GPL");