From: Jonathan Marek <jonathan@xxxxxxxx>
Add necessary DPU timing and control changes for DSC to work with DSI
video mode.
Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx>
Signed-off-by: Jun Nie <jun.nie@xxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 9 +++++++++
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 8 ++++++++
2 files changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
index d9e7dbf0499c..c7b009a60b63 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c
@@ -115,6 +115,15 @@ static void drm_mode_to_intf_timing_params(
timing->h_front_porch = timing->h_front_porch >> 1;
timing->hsync_pulse_width = timing->hsync_pulse_width >> 1;
}
+
+ /*
+ * for DSI, if compression is enabled, then divide the horizonal active
+ * timing parameters by compression ratio.
+ */
+ if (phys_enc->hw_intf->cap->type != INTF_DP && timing->compression_en) {
+ timing->width = timing->width / 3; /* XXX: don't assume 3:1 compression ratio */
+ timing->xres = timing->width;
+ }
}
static u32 get_horizontal_total(const struct dpu_hw_intf_timing_params *timing)
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 965692ef7892..079efb48db05 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c
@@ -167,6 +167,14 @@ static void dpu_hw_intf_setup_timing_engine(struct dpu_hw_intf *ctx,
intf_cfg2 |= INTF_CFG2_DATABUS_WIDEN;
data_width = p->width;
+ if (p->wide_bus_en && !dp_intf)
+ data_width = p->width >> 1;
+
+ if (p->compression_en)
+ intf_cfg2 |= INTF_CFG2_DCE_DATA_COMPRESS;
+
+ if (p->compression_en && dp_intf)
+ DPU_ERROR("missing adjustments for DSC+DP\n");
hsync_data_start_x = hsync_start_x;
hsync_data_end_x = hsync_start_x + data_width - 1;
--
2.34.1
