* [PATCH] ARM: dts: davinci: da850-evm: Increase fifo threshold
@ 2025-05-04 10:29 Adam Ford
2025-05-14 15:35 ` Bartosz Golaszewski
0 siblings, 1 reply; 2+ messages in thread
From: Adam Ford @ 2025-05-04 10:29 UTC (permalink / raw)
To: linux-arm-kernel
Cc: aford, Adam Ford, Bartosz Golaszewski, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, devicetree, linux-kernel
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
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] ARM: dts: davinci: da850-evm: Increase fifo threshold
2025-05-04 10:29 [PATCH] ARM: dts: davinci: da850-evm: Increase fifo threshold Adam Ford
@ 2025-05-14 15:35 ` Bartosz Golaszewski
0 siblings, 0 replies; 2+ messages in thread
From: Bartosz Golaszewski @ 2025-05-14 15:35 UTC (permalink / raw)
To: linux-arm-kernel, Adam Ford
Cc: Bartosz Golaszewski, aford, Bartosz Golaszewski, Rob Herring,
Krzysztof Kozlowski, Conor Dooley, devicetree, linux-kernel
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>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2025-05-04 10:29 [PATCH] ARM: dts: davinci: da850-evm: Increase fifo threshold Adam Ford
2025-05-14 15:35 ` Bartosz Golaszewski
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