diff options
| author | Icenowy Zheng <uwu@icenowy.me> | 2025-08-13 16:17:16 +0800 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2025-08-14 12:20:09 +0200 |
| commit | d342031a523835d5cbf959f74663ee405acefb2c (patch) | |
| tree | bb43ae8c609a746bc8226e57d764a73cf65783fd | |
| parent | f443d7c9ed4642489d2f73a35e86df6228f65dfc (diff) | |
reset: th1520: add resets for display pipeline
The VO subsystem of TH1520 contains a few resets for the display
pipeline -- display, MIPI DSI and HDMI controllers.
Add support for them to the reset-th1520 driver.
Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20250813081716.2181843-3-uwu@icenowy.me
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
| -rw-r--r-- | drivers/reset/reset-th1520.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/drivers/reset/reset-th1520.c b/drivers/reset/reset-th1520.c index 7874f0693e1b..06e5dff7c524 100644 --- a/drivers/reset/reset-th1520.c +++ b/drivers/reset/reset-th1520.c @@ -14,10 +14,20 @@ /* register offset in VOSYS_REGMAP */ #define TH1520_GPU_RST_CFG 0x0 #define TH1520_GPU_RST_CFG_MASK GENMASK(1, 0) +#define TH1520_DPU_RST_CFG 0x4 +#define TH1520_DSI0_RST_CFG 0x8 +#define TH1520_DSI1_RST_CFG 0xc +#define TH1520_HDMI_RST_CFG 0x14 /* register values */ #define TH1520_GPU_SW_GPU_RST BIT(0) #define TH1520_GPU_SW_CLKGEN_RST BIT(1) +#define TH1520_DPU_SW_DPU_HRST BIT(0) +#define TH1520_DPU_SW_DPU_ARST BIT(1) +#define TH1520_DPU_SW_DPU_CRST BIT(2) +#define TH1520_DSI_SW_DSI_PRST BIT(0) +#define TH1520_HDMI_SW_MAIN_RST BIT(0) +#define TH1520_HDMI_SW_PRST BIT(1) struct th1520_reset_priv { struct reset_controller_dev rcdev; @@ -37,7 +47,35 @@ static const struct th1520_reset_map th1520_resets[] = { [TH1520_RESET_ID_GPU_CLKGEN] = { .bit = TH1520_GPU_SW_CLKGEN_RST, .reg = TH1520_GPU_RST_CFG, - } + }, + [TH1520_RESET_ID_DPU_AHB] = { + .bit = TH1520_DPU_SW_DPU_HRST, + .reg = TH1520_DPU_RST_CFG, + }, + [TH1520_RESET_ID_DPU_AXI] = { + .bit = TH1520_DPU_SW_DPU_ARST, + .reg = TH1520_DPU_RST_CFG, + }, + [TH1520_RESET_ID_DPU_CORE] = { + .bit = TH1520_DPU_SW_DPU_CRST, + .reg = TH1520_DPU_RST_CFG, + }, + [TH1520_RESET_ID_DSI0_APB] = { + .bit = TH1520_DSI_SW_DSI_PRST, + .reg = TH1520_DSI0_RST_CFG, + }, + [TH1520_RESET_ID_DSI1_APB] = { + .bit = TH1520_DSI_SW_DSI_PRST, + .reg = TH1520_DSI1_RST_CFG, + }, + [TH1520_RESET_ID_HDMI] = { + .bit = TH1520_HDMI_SW_MAIN_RST, + .reg = TH1520_HDMI_RST_CFG, + }, + [TH1520_RESET_ID_HDMI_APB] = { + .bit = TH1520_HDMI_SW_PRST, + .reg = TH1520_HDMI_RST_CFG, + }, }; static inline struct th1520_reset_priv * |