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

Le mardi 20 septembre 2016 ? 13:24 +0100, Jon Hunter a ?crit?:

On 18/09/16 15:13, Paul Kocialkowski wrote:

quoted

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 <redacted>
---
?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 at 0,57000000 {
+		status = "okay";
+
+		vdd-supply = <&vdd_gpu>;
+	};
+
?	serial at 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?

I have the same messages and asked?Alexandre about them the other day. He told
me that it looks normal.

[????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

-- 
Paul Kocialkowski, developer of low-level free software for embedded devices

Website: https://www.paulk.fr/
Coding blog: https://code.paulk.fr/
Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/
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