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 --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)
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 6f0f545..899f28d 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,