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 <aford173@gmail.com>

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 = <0>;
 			sync-ctrl = <1>;
 			raster-order = <0>;
-			fifo-th = <0>;
+			fifo-th = <1>;
 		};
 
 		display-timings {
-- 
2.48.1

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>


On Sun, 04 May 2025 05:29:59 -0500, Adam Ford wrote:
> 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.
> 
> 

Applied, thanks!

[1/1] ARM: dts: davinci: da850-evm: Increase fifo threshold
      https://git.kernel.org/brgl/linux/c/17f25c977e9eace1b066417b11d16424772a2fcc

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>