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SubjectRe: [5/5] ARM: tegra: jetson-tk1: enable GK20A GPU
On 09/25/2014 07:27 AM, Sjoerd Simons wrote:
> Playing a bit with todays linux-next on my jetson, it seems this patch is
> still required for enabling the GPU. Is there anything blocking it (firmware
> not available yet in liux-firmware?)

I think initially I was waiting for the DRM patch "drm/nouvea: support
for probing platform devices" to be applied, but it looks like that's
been applied already, so only patches 4 and 5 in this series are still
outstanding.

Alex, wasn't there also some issue where the VPR register had to be
programmed, and if it wasn't there'd be a hang when the GPU registers
were touched? If we've added code to Nouveau/tegradrm to detect that and
avoid the problem, then I guess we can commit these last two patches for
3.19. A resend after the 3.18 merge window might help.

> On Mon, May 19, 2014 at 06:24:10PM +0900, Alexandre Courbot wrote:
>> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
>> ---
>> arch/arm/boot/dts/tegra124-jetson-tk1.dts | 8 +++++++-
>> 1 file changed, 7 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
>> index e31fb61a81d3..15a194d1277f 100644
>> --- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
>> +++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
>> @@ -30,6 +30,12 @@
>> };
>> };
>>
>> + gpu@0,57000000 {
>> + status = "okay";
>> +
>> + vdd-supply = <&vdd_gpu>;
>> + };
>> +
>> pinmux: pinmux@0,70000868 {
>> pinctrl-names = "default";
>> pinctrl-0 = <&state_default>;
>> @@ -1505,7 +1511,7 @@
>> regulator-always-on;
>> };
>>
>> - sd6 {
>> + vdd_gpu: sd6 {
>> regulator-name = "+VDD_GPU_AP";
>> regulator-min-microvolt = <650000>;
>> regulator-max-microvolt = <1200000>;
>



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