* [PATCH] ARM: dts: da850: specify max width for display node
@ 2016-11-22 9:42 Bartosz Golaszewski
2016-11-22 10:27 ` Tomi Valkeinen
0 siblings, 1 reply; 3+ messages in thread
From: Bartosz Golaszewski @ 2016-11-22 9:42 UTC (permalink / raw)
To: Kevin Hilman, Michael Turquette, Sekhar Nori, Rob Herring,
Frank Rowand, Mark Rutland, Peter Ujfalusi, Russell King
Cc: linux-devicetree, LKML, linux-drm, Bartosz Golaszewski,
Tomi Valkeinen, Jyri Sarha, arm-soc, Laurent Pinchart
It has been determined that the highest resolution supported correctly
by LCDC rev1 is 800x600 on da850 due to memory bandwidth constraints.
Set the max_width property in da850.dtsi to 800.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
arch/arm/boot/dts/da850.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index 36066fa..0876238 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -441,6 +441,7 @@
compatible = "ti,da850-tilcdc";
reg = <0x213000 0x1000>;
interrupts = <52>;
+ max-width = <800>;
status = "disabled";
};
};
--
2.9.3
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] ARM: dts: da850: specify max width for display node
2016-11-22 9:42 [PATCH] ARM: dts: da850: specify max width for display node Bartosz Golaszewski
@ 2016-11-22 10:27 ` Tomi Valkeinen
[not found] ` <77c993f3-1b5f-94cf-c4bc-8a30148e0a4d-l0cyMroinI0@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Tomi Valkeinen @ 2016-11-22 10:27 UTC (permalink / raw)
To: Bartosz Golaszewski, Kevin Hilman, Michael Turquette, Sekhar Nori,
Rob Herring, Frank Rowand, Mark Rutland, Peter Ujfalusi,
Russell King
Cc: linux-devicetree, LKML, linux-drm, Jyri Sarha, arm-soc,
Laurent Pinchart
[-- Attachment #1.1.1: Type: text/plain, Size: 958 bytes --]
On 22/11/16 11:42, Bartosz Golaszewski wrote:
> It has been determined that the highest resolution supported correctly
> by LCDC rev1 is 800x600 on da850 due to memory bandwidth constraints.
>
> Set the max_width property in da850.dtsi to 800.
>
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> ---
> arch/arm/boot/dts/da850.dtsi | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
> index 36066fa..0876238 100644
> --- a/arch/arm/boot/dts/da850.dtsi
> +++ b/arch/arm/boot/dts/da850.dtsi
> @@ -441,6 +441,7 @@
> compatible = "ti,da850-tilcdc";
> reg = <0x213000 0x1000>;
> interrupts = <52>;
> + max-width = <800>;
> status = "disabled";
> };
> };
>
Does 1024x768@10 work?
The max-width should be the hardware's maximum supported width, not used
for bandwidth. tilcdc has max-bandwidth property for that.
Tomi
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2016-11-22 9:42 [PATCH] ARM: dts: da850: specify max width for display node Bartosz Golaszewski
2016-11-22 10:27 ` Tomi Valkeinen
[not found] ` <77c993f3-1b5f-94cf-c4bc-8a30148e0a4d-l0cyMroinI0@public.gmane.org>
2016-11-22 10:30 ` Bartosz Golaszewski
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