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Sat, 07 Mar 2026 03:13:30 -0800 (PST) Received: from nuvole ([109.166.36.159]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ae83f74e7bsm47350265ad.46.2026.03.07.03.13.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Mar 2026 03:13:29 -0800 (PST) From: Pengyu Luo To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter Cc: Pengyu Luo , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] drm/msm/dsi: fix bits_per_pclk Date: Sat, 7 Mar 2026 19:12:48 +0800 Message-ID: <20260307111250.105772-1-mitltlatltl@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit mipi_dsi_pixel_format_to_bpp return dst bpp not src bpp, dst bpp may not be the uncompressed data size. use src bpc * 3 to get src bpp, this aligns with pclk rate calculation. Fixes: ac47870fd795 ("drm/msm/dsi: fix hdisplay calculation when programming dsi registers") Signed-off-by: Pengyu Luo --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index e8e83ee61e..7c16216e8b 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1030,7 +1030,7 @@ static void dsi_timing_setup(struct msm_dsi_host *msm_host, bool is_bonded_dsi) */ h_total -= hdisplay; if (wide_bus_enabled) - bits_per_pclk = mipi_dsi_pixel_format_to_bpp(msm_host->format); + bits_per_pclk = dsc->bits_per_component * 3; else bits_per_pclk = 24; -- 2.53.0