Add MT8196 ovl0 clock controller which provides clock gate control in
display system. This is integrated with mtk-mmsys driver which will
populate device by platform_device_register_data to start ovl0 clock
driver.
Signed-off-by: Guangjie Song <guangjie.song@xxxxxxxxxxxx>
---
drivers/clk/mediatek/Makefile | 3 +-
drivers/clk/mediatek/clk-mt8196-ovl0.c | 256 +++++++++++++++++++++++++
2 files changed, 258 insertions(+), 1 deletion(-)
create mode 100644 drivers/clk/mediatek/clk-mt8196-ovl0.c
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index fab6a0944501..6766811e67d9 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -158,7 +158,8 @@ obj-$(CONFIG_COMMON_CLK_MT8196_IMP_IIC_WRAP) += clk-mt8196-imp_iic_wrap.o
obj-$(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-$(CONFIG_COMMON_CLK_MT8196_MMSYS) += clk-mt8196-disp0.o clk-mt8196-disp1.o clk-mt8196-vdisp_ao.o
+obj-$(CONFIG_COMMON_CLK_MT8196_MMSYS) += clk-mt8196-disp0.o clk-mt8196-disp1.o clk-mt8196-vdisp_ao.o \
+ clk-mt8196-ovl0.o
obj-$(CONFIG_COMMON_CLK_MT8365) += clk-mt8365-apmixedsys.o clk-mt8365.o
obj-$(CONFIG_COMMON_CLK_MT8365_APU) += clk-mt8365-apu.o
obj-$(CONFIG_COMMON_CLK_MT8365_CAM) += clk-mt8365-cam.o
diff --git a/drivers/clk/mediatek/clk-mt8196-ovl0.c b/drivers/clk/mediatek/clk-mt8196-ovl0.c
new file mode 100644
index 000000000000..5a9ae157ec35
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt8196-ovl0.c
@@ -0,0 +1,256 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2025 MediaTek Inc.
+ * Author: Guangjie Song <guangjie.song@xxxxxxxxxxxx>
+ */
+
+#include "clk-gate.h"
+#include "clk-mtk.h"
+
+#include <dt-bindings/clock/mt8196-clk.h>
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+static const struct mtk_gate_regs ovl0_cg_regs = {
+ .set_ofs = 0x104,
+ .clr_ofs = 0x108,
+ .sta_ofs = 0x100,
+};
+
+static const struct mtk_gate_regs ovl0_vote_regs = {
+ .set_ofs = 0x0060,
+ .clr_ofs = 0x0064,
+ .sta_ofs = 0x2c30,
+};
+
+static const struct mtk_gate_regs ovl1_cg_regs = {
+ .set_ofs = 0x114,
+ .clr_ofs = 0x118,
+ .sta_ofs = 0x110,
+};
+
+static const struct mtk_gate_regs ovl1_vote_regs = {
+ .set_ofs = 0x0068,
+ .clr_ofs = 0x006c,
+ .sta_ofs = 0x2c34,
+};
+
+#define GATE_OVL0(_id, _name, _parent, _shift) {\
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &ovl0_cg_regs, \
+ .shift = _shift, \
+ .flags = CLK_OPS_PARENT_ENABLE, \
+ .ops = &mtk_clk_gate_ops_setclr,\
+ }
+
+#define GATE_OVL0_V(_id, _name, _parent) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &cg_regs_dummy, \
+ .ops = &mtk_clk_dummy_ops, \
+ }
+
+#define GATE_VOTE_OVL0(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .vote_comp = "mm-vote-regmap", \
+ .regs = &ovl0_cg_regs, \
+ .vote_regs = &ovl0_vote_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_vote, \
+ .dma_ops = &mtk_clk_gate_ops_setclr, \
+ .flags = CLK_USE_VOTE | \
+ CLK_OPS_PARENT_ENABLE, \
+ }
+
+#define GATE_OVL1(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &ovl1_cg_regs, \
+ .shift = _shift, \
+ .flags = CLK_OPS_PARENT_ENABLE, \
+ .ops = &mtk_clk_gate_ops_setclr, \
+ }
+
+#define GATE_OVL1_V(_id, _name, _parent) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .regs = &cg_regs_dummy, \
+ .ops = &mtk_clk_dummy_ops, \
+ }
+
+#define GATE_VOTE_OVL1(_id, _name, _parent, _shift) { \
+ .id = _id, \
+ .name = _name, \
+ .parent_name = _parent, \
+ .vote_comp = "mm-vote-regmap", \
+ .regs = &ovl1_cg_regs, \
+ .vote_regs = &ovl1_vote_regs, \
+ .shift = _shift, \
+ .ops = &mtk_clk_gate_ops_vote, \
+ .dma_ops = &mtk_clk_gate_ops_setclr, \
+ .flags = CLK_USE_VOTE | \
+ CLK_OPS_PARENT_ENABLE, \
+ }
+
+static const struct mtk_gate ovl_clks[] = {
+ /* OVL0 */
+ GATE_VOTE_OVL0(CLK_OVLSYS_CONFIG, "ovlsys_config", "ck2_disp_ck", 0),
+ GATE_OVL0_V(CLK_OVLSYS_CONFIG_DISP, "ovlsys_config_disp", "ovlsys_config"),
+ GATE_VOTE_OVL0(CLK_OVL_FAKE_ENG0, "ovl_fake_eng0", "ck2_disp_ck", 1),
+ GATE_OVL0_V(CLK_OVL_FAKE_ENG0_DISP, "ovl_fake_eng0_disp", "ovl_fake_eng0"),
+ GATE_VOTE_OVL0(CLK_OVL_FAKE_ENG1, "ovl_fake_eng1", "ck2_disp_ck", 2),
+ GATE_OVL0_V(CLK_OVL_FAKE_ENG1_DISP, "ovl_fake_eng1_disp", "ovl_fake_eng1"),
+ GATE_VOTE_OVL0(CLK_OVL_MUTEX0, "ovl_mutex0", "ck2_disp_ck", 3),
+ GATE_OVL0_V(CLK_OVL_MUTEX0_DISP, "ovl_mutex0_disp", "ovl_mutex0"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA0, "ovl_exdma0", "ck2_disp_ck", 4),
+ GATE_OVL0_V(CLK_OVL_EXDMA0_DISP, "ovl_exdma0_disp", "ovl_exdma0"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA1, "ovl_exdma1", "ck2_disp_ck", 5),
+ GATE_OVL0_V(CLK_OVL_EXDMA1_DISP, "ovl_exdma1_disp", "ovl_exdma1"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA2, "ovl_exdma2", "ck2_disp_ck", 6),
+ GATE_OVL0_V(CLK_OVL_EXDMA2_DISP, "ovl_exdma2_disp", "ovl_exdma2"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA3, "ovl_exdma3", "ck2_disp_ck", 7),
+ GATE_OVL0_V(CLK_OVL_EXDMA3_DISP, "ovl_exdma3_disp", "ovl_exdma3"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA4, "ovl_exdma4", "ck2_disp_ck", 8),
+ GATE_OVL0_V(CLK_OVL_EXDMA4_DISP, "ovl_exdma4_disp", "ovl_exdma4"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA5, "ovl_exdma5", "ck2_disp_ck", 9),
+ GATE_OVL0_V(CLK_OVL_EXDMA5_DISP, "ovl_exdma5_disp", "ovl_exdma5"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA6, "ovl_exdma6", "ck2_disp_ck", 10),
+ GATE_OVL0_V(CLK_OVL_EXDMA6_DISP, "ovl_exdma6_disp", "ovl_exdma6"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA7, "ovl_exdma7", "ck2_disp_ck", 11),
+ GATE_OVL0_V(CLK_OVL_EXDMA7_DISP, "ovl_exdma7_disp", "ovl_exdma7"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA8, "ovl_exdma8", "ck2_disp_ck", 12),
+ GATE_OVL0_V(CLK_OVL_EXDMA8_DISP, "ovl_exdma8_disp", "ovl_exdma8"),
+ GATE_VOTE_OVL0(CLK_OVL_EXDMA9, "ovl_exdma9", "ck2_disp_ck", 13),
+ GATE_OVL0_V(CLK_OVL_EXDMA9_DISP, "ovl_exdma9_disp", "ovl_exdma9"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER0, "ovl_blender0", "ck2_disp_ck", 14),
+ GATE_OVL0_V(CLK_OVL_BLENDER0_DISP, "ovl_blender0_disp", "ovl_blender0"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER1, "ovl_blender1", "ck2_disp_ck", 15),
+ GATE_OVL0_V(CLK_OVL_BLENDER1_DISP, "ovl_blender1_disp", "ovl_blender1"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER2, "ovl_blender2", "ck2_disp_ck", 16),
+ GATE_OVL0_V(CLK_OVL_BLENDER2_DISP, "ovl_blender2_disp", "ovl_blender2"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER3, "ovl_blender3", "ck2_disp_ck", 17),
+ GATE_OVL0_V(CLK_OVL_BLENDER3_DISP, "ovl_blender3_disp", "ovl_blender3"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER4, "ovl_blender4", "ck2_disp_ck", 18),
+ GATE_OVL0_V(CLK_OVL_BLENDER4_DISP, "ovl_blender4_disp", "ovl_blender4"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER5, "ovl_blender5", "ck2_disp_ck", 19),
+ GATE_OVL0_V(CLK_OVL_BLENDER5_DISP, "ovl_blender5_disp", "ovl_blender5"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER6, "ovl_blender6", "ck2_disp_ck", 20),
+ GATE_OVL0_V(CLK_OVL_BLENDER6_DISP, "ovl_blender6_disp", "ovl_blender6"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER7, "ovl_blender7", "ck2_disp_ck", 21),
+ GATE_OVL0_V(CLK_OVL_BLENDER7_DISP, "ovl_blender7_disp", "ovl_blender7"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER8, "ovl_blender8", "ck2_disp_ck", 22),
+ GATE_OVL0_V(CLK_OVL_BLENDER8_DISP, "ovl_blender8_disp", "ovl_blender8"),
+ GATE_VOTE_OVL0(CLK_OVL_BLENDER9, "ovl_blender9", "ck2_disp_ck", 23),
+ GATE_OVL0_V(CLK_OVL_BLENDER9_DISP, "ovl_blender9_disp", "ovl_blender9"),
+ GATE_VOTE_OVL0(CLK_OVL_OUTPROC0, "ovl_outproc0", "ck2_disp_ck", 24),
+ GATE_OVL0_V(CLK_OVL_OUTPROC0_DISP, "ovl_outproc0_disp", "ovl_outproc0"),
+ GATE_VOTE_OVL0(CLK_OVL_OUTPROC1, "ovl_outproc1", "ck2_disp_ck", 25),
+ GATE_OVL0_V(CLK_OVL_OUTPROC1_DISP, "ovl_outproc1_disp", "ovl_outproc1"),
+ GATE_VOTE_OVL0(CLK_OVL_OUTPROC2, "ovl_outproc2", "ck2_disp_ck", 26),
+ GATE_OVL0_V(CLK_OVL_OUTPROC2_DISP, "ovl_outproc2_disp", "ovl_outproc2"),
+ GATE_VOTE_OVL0(CLK_OVL_OUTPROC3, "ovl_outproc3", "ck2_disp_ck", 27),
+ GATE_OVL0_V(CLK_OVL_OUTPROC3_DISP, "ovl_outproc3_disp", "ovl_outproc3"),
+ GATE_VOTE_OVL0(CLK_OVL_OUTPROC4, "ovl_outproc4", "ck2_disp_ck", 28),
+ GATE_OVL0_V(CLK_OVL_OUTPROC4_DISP, "ovl_outproc4_disp", "ovl_outproc4"),
+ GATE_VOTE_OVL0(CLK_OVL_OUTPROC5, "ovl_outproc5", "ck2_disp_ck", 29),
+ GATE_OVL0_V(CLK_OVL_OUTPROC5_DISP, "ovl_outproc5_disp", "ovl_outproc5"),
+ GATE_VOTE_OVL0(CLK_OVL_MDP_RSZ0, "ovl_mdp_rsz0", "ck2_disp_ck", 30),
+ GATE_OVL0_V(CLK_OVL_MDP_RSZ0_DISP, "ovl_mdp_rsz0_disp", "ovl_mdp_rsz0"),
+ GATE_VOTE_OVL0(CLK_OVL_MDP_RSZ1, "ovl_mdp_rsz1", "ck2_disp_ck", 31),
+ GATE_OVL0_V(CLK_OVL_MDP_RSZ1_DISP, "ovl_mdp_rsz1_disp", "ovl_mdp_rsz1"),
+ /* OVL1 */
+ GATE_VOTE_OVL1(CLK_OVL_DISP_WDMA0, "ovl_disp_wdma0", "ck2_disp_ck", 0),
+ GATE_OVL1_V(CLK_OVL_DISP_WDMA0_DISP, "ovl_disp_wdma0_disp", "ovl_disp_wdma0"),
+ GATE_VOTE_OVL1(CLK_OVL_DISP_WDMA1, "ovl_disp_wdma1", "ck2_disp_ck", 1),
+ GATE_OVL1_V(CLK_OVL_DISP_WDMA1_DISP, "ovl_disp_wdma1_disp", "ovl_disp_wdma1"),
+ GATE_VOTE_OVL1(CLK_OVL_UFBC_WDMA0, "ovl_ufbc_wdma0", "ck2_disp_ck", 2),
+ GATE_OVL1_V(CLK_OVL_UFBC_WDMA0_DISP, "ovl_ufbc_wdma0_disp", "ovl_ufbc_wdma0"),
+ GATE_VOTE_OVL1(CLK_OVL_MDP_RDMA0, "ovl_mdp_rdma0", "ck2_disp_ck", 3),
+ GATE_OVL1_V(CLK_OVL_MDP_RDMA0_DISP, "ovl_mdp_rdma0_disp", "ovl_mdp_rdma0"),
+ GATE_VOTE_OVL1(CLK_OVL_MDP_RDMA1, "ovl_mdp_rdma1", "ck2_disp_ck", 4),
+ GATE_OVL1_V(CLK_OVL_MDP_RDMA1_DISP, "ovl_mdp_rdma1_disp", "ovl_mdp_rdma1"),
+ GATE_VOTE_OVL1(CLK_OVL_BWM0, "ovl_bwm0", "ck2_disp_ck", 5),
+ GATE_OVL1_V(CLK_OVL_BWM0_DISP, "ovl_bwm0_disp", "ovl_bwm0"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI0, "ovl_dli0", "ck2_disp_ck", 6),
+ GATE_OVL1_V(CLK_OVL_DLI0_DISP, "ovl_dli0_disp", "ovl_dli0"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI1, "ovl_dli1", "ck2_disp_ck", 7),
+ GATE_OVL1_V(CLK_OVL_DLI1_DISP, "ovl_dli1_disp", "ovl_dli1"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI2, "ovl_dli2", "ck2_disp_ck", 8),
+ GATE_OVL1_V(CLK_OVL_DLI2_DISP, "ovl_dli2_disp", "ovl_dli2"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI3, "ovl_dli3", "ck2_disp_ck", 9),
+ GATE_OVL1_V(CLK_OVL_DLI3_DISP, "ovl_dli3_disp", "ovl_dli3"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI4, "ovl_dli4", "ck2_disp_ck", 10),
+ GATE_OVL1_V(CLK_OVL_DLI4_DISP, "ovl_dli4_disp", "ovl_dli4"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI5, "ovl_dli5", "ck2_disp_ck", 11),
+ GATE_OVL1_V(CLK_OVL_DLI5_DISP, "ovl_dli5_disp", "ovl_dli5"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI6, "ovl_dli6", "ck2_disp_ck", 12),
+ GATE_OVL1_V(CLK_OVL_DLI6_DISP, "ovl_dli6_disp", "ovl_dli6"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI7, "ovl_dli7", "ck2_disp_ck", 13),
+ GATE_OVL1_V(CLK_OVL_DLI7_DISP, "ovl_dli7_disp", "ovl_dli7"),
+ GATE_VOTE_OVL1(CLK_OVL_DLI8, "ovl_dli8", "ck2_disp_ck", 14),
+ GATE_OVL1_V(CLK_OVL_DLI8_DISP, "ovl_dli8_disp", "ovl_dli8"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO0, "ovl_dlo0", "ck2_disp_ck", 15),
+ GATE_OVL1_V(CLK_OVL_DLO0_DISP, "ovl_dlo0_disp", "ovl_dlo0"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO1, "ovl_dlo1", "ck2_disp_ck", 16),
+ GATE_OVL1_V(CLK_OVL_DLO1_DISP, "ovl_dlo1_disp", "ovl_dlo1"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO2, "ovl_dlo2", "ck2_disp_ck", 17),
+ GATE_OVL1_V(CLK_OVL_DLO2_DISP, "ovl_dlo2_disp", "ovl_dlo2"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO3, "ovl_dlo3", "ck2_disp_ck", 18),
+ GATE_OVL1_V(CLK_OVL_DLO3_DISP, "ovl_dlo3_disp", "ovl_dlo3"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO4, "ovl_dlo4", "ck2_disp_ck", 19),
+ GATE_OVL1_V(CLK_OVL_DLO4_DISP, "ovl_dlo4_disp", "ovl_dlo4"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO5, "ovl_dlo5", "ck2_disp_ck", 20),
+ GATE_OVL1_V(CLK_OVL_DLO5_DISP, "ovl_dlo5_disp", "ovl_dlo5"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO6, "ovl_dlo6", "ck2_disp_ck", 21),
+ GATE_OVL1_V(CLK_OVL_DLO6_DISP, "ovl_dlo6_disp", "ovl_dlo6"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO7, "ovl_dlo7", "ck2_disp_ck", 22),
+ GATE_OVL1_V(CLK_OVL_DLO7_DISP, "ovl_dlo7_disp", "ovl_dlo7"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO8, "ovl_dlo8", "ck2_disp_ck", 23),
+ GATE_OVL1_V(CLK_OVL_DLO8_DISP, "ovl_dlo8_disp", "ovl_dlo8"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO9, "ovl_dlo9", "ck2_disp_ck", 24),
+ GATE_OVL1_V(CLK_OVL_DLO9_DISP, "ovl_dlo9_disp", "ovl_dlo9"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO10, "ovl_dlo10", "ck2_disp_ck", 25),
+ GATE_OVL1_V(CLK_OVL_DLO10_DISP, "ovl_dlo10_disp", "ovl_dlo10"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO11, "ovl_dlo11", "ck2_disp_ck", 26),
+ GATE_OVL1_V(CLK_OVL_DLO11_DISP, "ovl_dlo11_disp", "ovl_dlo11"),
+ GATE_VOTE_OVL1(CLK_OVL_DLO12, "ovl_dlo12", "ck2_disp_ck", 27),
+ GATE_OVL1_V(CLK_OVL_DLO12_DISP, "ovl_dlo12_disp", "ovl_dlo12"),
+ GATE_VOTE_OVL1(CLK_OVLSYS_RELAY0, "ovlsys_relay0", "ck2_disp_ck", 28),
+ GATE_OVL1_V(CLK_OVLSYS_RELAY0_DISP, "ovlsys_relay0_disp", "ovlsys_relay0"),
+ GATE_VOTE_OVL1(CLK_OVL_INLINEROT0, "ovl_inlinerot0", "ck2_disp_ck", 29),
+ GATE_OVL1_V(CLK_OVL_INLINEROT0_DISP, "ovl_inlinerot0_disp", "ovl_inlinerot0"),
+ GATE_VOTE_OVL1(CLK_OVL_SMI, "ovl_smi", "ck2_disp_ck", 30),
+ GATE_OVL1_V(CLK_OVL_SMI_SMI, "ovl_smi_smi", "ovl_smi"),
+};
+
+static const struct mtk_clk_desc ovl_mcd = {
+ .clks = ovl_clks,
+ .num_clks = ARRAY_SIZE(ovl_clks),
+};
+
+static const struct platform_device_id clk_mt8196_ovl0_id_table[] = {
+ { .name = "clk-mt8196-ovl0", .driver_data = (kernel_ulong_t)&ovl_mcd },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, clk_mt8196_ovl0_id_table);
+
+static struct platform_driver clk_mt8196_ovl0_drv = {
+ .probe = mtk_clk_pdev_probe,
+ .remove = mtk_clk_pdev_remove,
+ .driver = {
+ .name = "clk-mt8196-ovl0",
+ },
+ .id_table = clk_mt8196_ovl0_id_table,
+};
+
+module_platform_driver(clk_mt8196_ovl0_drv);
+MODULE_LICENSE("GPL");
--
2.45.2
