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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240530-msm-drm-dsc-dsi-video-upstream-4-v6-2-2ab1d334c657@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 , Neil Armstrong X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1717048617; l=1362; i=jun.nie@linaro.org; s=20240403; h=from:subject:message-id; bh=OHNAcN5o/LJmbpUIEbr4VX14s/2cSy3xBsOYCqYDXXs=; b=GWWPS3UkIhGISQYgdng1Ghi+C91yCmA4fP4R/VWTpImKe8IVXkBrgo5h9osj1IbqvCnPn33Ok F3ae/xA2GZvDFT7qTdU1GZTFyvyOqaKwxDHEufeCcWKrmx/gix8pxAj X-Developer-Key: i=jun.nie@linaro.org; a=ed25519; pk=MNiBt/faLPvo+iJoP1hodyY2x6ozVXL8QMptmsKg3cc= data is valid for only half the active window if widebus is enabled 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: Dmitry Baryshkov Reviewed-by: Jessica Zhang --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c | 9 +++++++++ 1 file changed, 9 insertions(+) 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 225c1c7768ff..f97221423249 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_intf.c @@ -168,6 +168,15 @@ static void dpu_hw_intf_setup_timing_engine(struct dpu= _hw_intf *intf, =20 data_width =3D p->width; =20 + /* + * If widebus is enabled, data is valid for only half the active window + * since the data rate is doubled in this mode. But for the compression + * mode in DP case, the p->width is already adjusted in + * drm_mode_to_intf_timing_params() + */ + if (p->wide_bus_en && !dp_intf) + data_width =3D p->width >> 1; + hsync_data_start_x =3D hsync_start_x; hsync_data_end_x =3D hsync_start_x + data_width - 1; =20 --=20 2.34.1