diff options
| author | Krishna Manikandan <mkrishn@codeaurora.org> | 2021-04-06 08:09:52 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2021-04-07 21:05:48 +0300 |
| commit | 7e6ee55320f09cef73163ac6a2ffaca2aa17334f (patch) | |
| tree | 0a503b979e04f3f7b0efb3f657a8d1302baf8581 /drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | |
| parent | b3652e87c03c70d8e6e04a17afa475f6855169d1 (diff) | |
| download | linux-7e6ee55320f09cef73163ac6a2ffaca2aa17334f.tar.xz | |
drm/msm/disp/dpu1: enable DATA_HCTL_EN for sc7280 target
The reset value of INTF_CONFIG2 register is changed
for SC7280 family. Changes are added to program
this register correctly based on the target.
DATA_HCTL_EN in INTF_CONFIG2 register allows data
to be transferred at a different rate than video
timing. When this is set, the number of data per
line follows DISPLAY_DATA_HCTL register value.
This change adds support to program these
registers for sc7280 target.
Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
Link: https://lore.kernel.org/r/1617685792-14376-5-git-send-email-mkrishn@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c index 717178b32c68..1599e3f49a4f 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c @@ -31,6 +31,8 @@ #define INTF_TEST_CTL 0x054 #define INTF_TP_COLOR0 0x058 #define INTF_TP_COLOR1 0x05C +#define INTF_CONFIG2 0x060 +#define INTF_DISPLAY_DATA_HCTL 0x064 #define INTF_FRAME_LINE_COUNT_EN 0x0A8 #define INTF_FRAME_COUNT 0x0AC #define INTF_LINE_COUNT 0x0B0 @@ -93,7 +95,7 @@ static void dpu_hw_intf_setup_timing_engine(struct dpu_hw_intf *ctx, u32 active_hctl, display_hctl, hsync_ctl; u32 polarity_ctl, den_polarity, hsync_polarity, vsync_polarity; u32 panel_format; - u32 intf_cfg; + u32 intf_cfg, intf_cfg2 = 0, display_data_hctl = 0; /* read interface_cfg */ intf_cfg = DPU_REG_READ(c, INTF_CONFIG); @@ -178,6 +180,13 @@ static void dpu_hw_intf_setup_timing_engine(struct dpu_hw_intf *ctx, (COLOR_8BIT << 4) | (0x21 << 8)); + if (ctx->cap->features & BIT(DPU_DATA_HCTL_EN)) { + intf_cfg2 |= BIT(4); + display_data_hctl = display_hctl; + DPU_REG_WRITE(c, INTF_CONFIG2, intf_cfg2); + DPU_REG_WRITE(c, INTF_DISPLAY_DATA_HCTL, display_data_hctl); + } + DPU_REG_WRITE(c, INTF_HSYNC_CTL, hsync_ctl); DPU_REG_WRITE(c, INTF_VSYNC_PERIOD_F0, vsync_period * hsync_period); DPU_REG_WRITE(c, INTF_VSYNC_PULSE_WIDTH_F0, |