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[144.178.202.138]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b9d6dee0d9csm386880166b.16.2026.04.14.03.13.46 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 14 Apr 2026 03:13:46 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Tue, 14 Apr 2026 12:13:45 +0200 Message-Id: Cc: , , , Subject: Re: [PATCH 1/2] drm/msm/dsi: fix bits_per_pclk From: "Luca Weiss" To: "Dmitry Baryshkov" , "Rob Clark" , "Dmitry Baryshkov" , "Abhinav Kumar" , "Jessica Zhang" , "Sean Paul" , "Marijn Suijten" , "David Airlie" , "Simona Vetter" , "Pengyu Luo" X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <20260307111250.105772-1-mitltlatltl@gmail.com> <177463970785.3488980.6066718261448635938.b4-ty@b4> In-Reply-To: <177463970785.3488980.6066718261448635938.b4-ty@b4> Hi all, On Fri Mar 27, 2026 at 8:47 PM CET, Dmitry Baryshkov wrote: > On Sat, 07 Mar 2026 19:12:48 +0800, Pengyu Luo wrote: >> 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. > > Applied to msm-next, thanks! > > [1/2] drm/msm/dsi: fix bits_per_pclk > https://gitlab.freedesktop.org/lumag/msm/-/commit/2d51cfb77daa > [2/2] drm/msm/dsi: fix hdisplay calculation for CMD mode panel > https://gitlab.freedesktop.org/lumag/msm/-/commit/82159db4371f Just wanna document this somewhere, 7.0 is quite broken on QCM6490 Fairphone 5 (8-bit cmd mode panel). Picking these two patches plus "drm/msm/dpu: don't try using 2 LMs if only one DSC is available" on top of 7.0 makes display work again. Regards Luca