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[219.100.37.245]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-377a921d99bsm1580861fa.22.2025.10.17.13.00.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Oct 2025 13:00:54 -0700 (PDT) From: Vladimir Lypak Date: Fri, 17 Oct 2025 19:58:38 +0000 Subject: [PATCH 4/6] drm/msm/dpu: Fix pixel extension sub-sampling Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251017-b4-dpu-fixes-v1-4-40ce5993eeb6@gmail.com> References: <20251017-b4-dpu-fixes-v1-0-40ce5993eeb6@gmail.com> In-Reply-To: <20251017-b4-dpu-fixes-v1-0-40ce5993eeb6@gmail.com> To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Konrad Dybcio , Kalyan Thota , Vinod Polimera , Konrad Dybcio , =?utf-8?q?Barnab=C3=A1s_Cz=C3=A9m=C3=A1n?= Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Vladimir Lypak X-Mailer: b4 0.14.2 In _dpu_plane_setup_pixel_ext function instead of dividing just chroma source resolution once (component 1 and 2), second component is divided once more because src_w and src_h variable is reused between iterations. Third component receives wrong source resolution too (from component 2). To fix this introduce temporary variables for each iteration. Fixes: dabfdd89eaa9 ("drm/msm/disp/dpu1: add inline rotation support for sc= 7280") Signed-off-by: Vladimir Lypak Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/ms= m/disp/dpu1/dpu_plane.c index 6effe0fa4837284a1f038e4907c4c91d239aeb8b..905524ceeb1f192c093f1be7f57= 1b29eb4b53379 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -500,13 +500,15 @@ static void _dpu_plane_setup_pixel_ext(struct dpu_hw_= scaler3_cfg *scale_cfg, int i; =20 for (i =3D 0; i < DPU_MAX_PLANES; i++) { + uint32_t w =3D src_w, h =3D src_h; + if (i =3D=3D DPU_SSPP_COMP_1_2 || i =3D=3D DPU_SSPP_COMP_2) { - src_w /=3D chroma_subsmpl_h; - src_h /=3D chroma_subsmpl_v; + w /=3D chroma_subsmpl_h; + h /=3D chroma_subsmpl_v; } =20 - pixel_ext->num_ext_pxls_top[i] =3D src_h; - pixel_ext->num_ext_pxls_left[i] =3D src_w; + pixel_ext->num_ext_pxls_top[i] =3D h; + pixel_ext->num_ext_pxls_left[i] =3D w; } } =20 --=20 2.51.0