Re: [PATCH] ARM: tegra: nyan: Enable GPU node and related supply

From: Jon Hunter
Date: Tue Sep 20 2016 - 08:24:50 EST



On 18/09/16 15:13, Paul Kocialkowski wrote:
> This enables the GPU node for tegra124 nyan boards, which is required to
> get graphics acceleration with nouveau on these devices.
>
> Signed-off-by: Paul Kocialkowski <contact@xxxxxxxx>
> ---
> arch/arm/boot/dts/tegra124-nyan.dtsi | 8 +++++++-
> 1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi
> index dab9509..225ca77 100644
> --- a/arch/arm/boot/dts/tegra124-nyan.dtsi
> +++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
> @@ -42,6 +42,12 @@
> };
> };
>
> + gpu@0,57000000 {
> + status = "okay";
> +
> + vdd-supply = <&vdd_gpu>;
> + };
> +
> serial@70006000 {
> /* Debug connector on the bottom of the board near SD card. */
> status = "okay";
> @@ -214,7 +220,7 @@
> regulator-always-on;
> };
>
> - sd6 {
> + vdd_gpu: sd6 {
> regulator-name = "+VDD_GPU_AP";
> regulator-min-microvolt = <650000>;
> regulator-max-microvolt = <1200000>;
>

Looks good to me. I see the following error when booting but looking at the
code appears to be benign. Thierry, Alex, is this normal/okay?

[ 5.715181] nouveau 57000000.gpu: NVIDIA GK20A (0ea000a1)
[ 5.720625] nouveau 57000000.gpu: imem: using IOMMU
[ 5.803694] nouveau 57000000.gpu: DRM: VRAM: 0 MiB
[ 5.808501] nouveau 57000000.gpu: DRM: GART: 1048576 MiB
[ 5.816000] nouveau 57000000.gpu: DRM: failed to create ce channel, -22
[ 5.924140] nouveau 57000000.gpu: DRM: MM: using GRCE for buffer copies

Cheers
Jon

--
nvpublic