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

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Date:   Mon, 7 Nov 2016 21:51:06 +0900
From:   Alexandre Courbot <gnurou@...il.com>
To:     Jon Hunter <jonathanh@...dia.com>
Cc:     Paul Kocialkowski <contact@...lk.fr>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Stephen Warren <swarren@...dotorg.org>
Subject: Re: [PATCH] ARM: tegra: nyan: Enable GPU node and related supply

On Wed, Sep 21, 2016 at 4:57 PM, Jon Hunter <jonathanh@...dia.com> wrote:
>
> On 20/09/16 19:17, Paul Kocialkowski wrote:
>> * PGP Signed by an unknown key
>>
>> Le mardi 20 septembre 2016 à 13:24 +0100, Jon Hunter a écrit :
>>> 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@...lk.fr>
>>>> ---
>>>>  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@...06000 {
>>>>             /* 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.
>
> Ok great. Hopefully, Alex can ACK then.

Apologies for the (very) delayed reply.

Yes, the messages you are seeing are part of the normal probe sequence
on Tegra. So this looks good to me.

Acked-by: Alexandre Courbot <acourbot@...dia.com>