diff options
| author | Jonathan Marek <[email protected]> | 2024-05-30 13:56:49 +0800 |
|---|---|---|
| committer | Dmitry Baryshkov <[email protected]> | 2024-06-23 01:15:39 +0300 |
| commit | 9ecd0ddd223b68b4603e4766a1d51f6c6cda346e (patch) | |
| tree | f27bbf0d55f18a34f6e0e60a7bc3548f0f6e7434 | |
| parent | 007870b8eaf54739c7b417ddaf90bf364b7e4bc8 (diff) | |
drm/msm/dsi: set VIDEO_COMPRESSION_MODE_CTRL_WC
Video mode DSC won't work if this field is not set correctly. Set it to fix
video mode DSC (for slice_per_pkt==1 cases at least).
Fixes: 08802f515c3c ("drm/msm/dsi: Add support for DSC configuration")
Signed-off-by: Jonathan Marek <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Jun Nie <[email protected]>
Tested-by: Neil Armstrong <[email protected]> # on SM8550-QRD
Tested-by: Neil Armstrong <[email protected]> # on SM8650-QRD
Tested-by: Neil Armstrong <[email protected]> # on SM8650-HDK
Reviewed-by: Jessica Zhang <[email protected]>
Patchwork: https://patchwork.freedesktop.org/patch/596234/
Link: https://lore.kernel.org/r/20240530-msm-drm-dsc-dsi-video-upstream-4-v6-5-2ab1d334c657@linaro.org
Signed-off-by: Dmitry Baryshkov <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_host.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 47f5858334f6..7252d36687e6 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -857,6 +857,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod u32 slice_per_intf, total_bytes_per_intf; u32 pkt_per_line; u32 eol_byte_num; + u32 bytes_per_pkt; /* first calculate dsc parameters and then program * compress mode registers @@ -864,6 +865,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod slice_per_intf = msm_dsc_get_slices_per_intf(dsc, hdisplay); total_bytes_per_intf = dsc->slice_chunk_size * slice_per_intf; + bytes_per_pkt = dsc->slice_chunk_size; /* * slice_per_pkt; */ eol_byte_num = total_bytes_per_intf % 3; @@ -901,6 +903,7 @@ static void dsi_update_dsc_timing(struct msm_dsi_host *msm_host, bool is_cmd_mod dsi_write(msm_host, REG_DSI_COMMAND_COMPRESSION_MODE_CTRL, reg_ctrl); dsi_write(msm_host, REG_DSI_COMMAND_COMPRESSION_MODE_CTRL2, reg_ctrl2); } else { + reg |= DSI_VIDEO_COMPRESSION_MODE_CTRL_WC(bytes_per_pkt); dsi_write(msm_host, REG_DSI_VIDEO_COMPRESSION_MODE_CTRL, reg); } } |