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(c-75-72-162-184.hsd1.mn.comcast.net. [75.72.162.184]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-48b960cf8fbsm42937331cf.11.2025.05.04.03.30.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 May 2025 03:30:07 -0700 (PDT) From: Adam Ford To: linux-arm-kernel@lists.infradead.org Cc: aford@beaconembedded.com, Adam Ford , Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: dts: davinci: da850-evm: Increase fifo threshold Date: Sun, 4 May 2025 05:29:59 -0500 Message-ID: <20250504102959.81830-1-aford173@gmail.com> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-kernel@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" When operating at low speeds, the display may throw an underflow error and the display itself goes blank. Increasing the fifo-th value appears to correct this problem and the display can now operate when the system is operating at speeds as low as 100MHz. Signed-off-by: Adam Ford diff --git a/arch/arm/boot/dts/ti/davinci/da850-evm.dts b/arch/arm/boot/dts= /ti/davinci/da850-evm.dts index 1f5cd35f8b74..38a191fb0414 100644 --- a/arch/arm/boot/dts/ti/davinci/da850-evm.dts +++ b/arch/arm/boot/dts/ti/davinci/da850-evm.dts @@ -60,7 +60,7 @@ panel-info { sync-edge =3D <0>; sync-ctrl =3D <1>; raster-order =3D <0>; - fifo-th =3D <0>; + fifo-th =3D <1>; }; =20 display-timings { --=20 2.48.1