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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240530-msm-drm-dsc-dsi-video-upstream-4-v6-5-2ab1d334c657@linaro.org> References: <20240530-msm-drm-dsc-dsi-video-upstream-4-v6-0-2ab1d334c657@linaro.org> In-Reply-To: <20240530-msm-drm-dsc-dsi-video-upstream-4-v6-0-2ab1d334c657@linaro.org> To: Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , Daniel Vetter , Jessica Zhang , Vinod Koul Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Jun Nie , Jonathan Marek , Neil Armstrong X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1717048617; l=1994; i=jun.nie@linaro.org; s=20240403; h=from:subject:message-id; bh=wYa7Wt+9FNkutbQfF1qd8yI9pCbHRJOEVcRy20d6px0=; b=g1HxXUGamd1S1+baoVF3C1PVSVxSrhmzRlQx4qfHnCqOmNGTSB9axEdRP98TE05H6leIP/t1u ZL+HaI2+8WsBJ28CpN6rClatB8UXm5Ir9vyIlQ7EbVW8a/Wln2VnK3G X-Developer-Key: i=jun.nie@linaro.org; a=ed25519; pk=MNiBt/faLPvo+iJoP1hodyY2x6ozVXL8QMptmsKg3cc= From: Jonathan Marek Video mode DSC won't work if this field is not set correctly. Set it to fix video mode DSC (for slice_per_pkt=3D=3D1 cases at least). Fixes: 08802f515c3c ("drm/msm/dsi: Add support for DSC configuration") Signed-off-by: Jonathan Marek Reviewed-by: Dmitry Baryshkov Signed-off-by: Jun Nie Tested-by: Neil Armstrong # on SM8550-QRD Tested-by: Neil Armstrong # on SM8650-QRD Tested-by: Neil Armstrong # on SM8650-HDK Reviewed-by: Jessica Zhang --- drivers/gpu/drm/msm/dsi/dsi_host.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/d= si_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; =20 /* 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 =3D msm_dsc_get_slices_per_intf(dsc, hdisplay); =20 total_bytes_per_intf =3D dsc->slice_chunk_size * slice_per_intf; + bytes_per_pkt =3D dsc->slice_chunk_size; /* * slice_per_pkt; */ =20 eol_byte_num =3D total_bytes_per_intf % 3; =20 @@ -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 |=3D DSI_VIDEO_COMPRESSION_MODE_CTRL_WC(bytes_per_pkt); dsi_write(msm_host, REG_DSI_VIDEO_COMPRESSION_MODE_CTRL, reg); } } --=20 2.34.1