linux-kernel - Re: [PATCH 4/4] arm64: dts: rockchip: Enable the GPU on Quartz64 Model A

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Date:   Fri, 14 Jan 2022 16:42:06 +0000
From:   Robin Murphy <robin.murphy@....com>
To:     Piotr Oniszczuk <piotr.oniszczuk@...il.com>,
        Alex Bee <knaerzche@...il.com>,
        Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
Cc:     Heiko Stuebner <heiko@...ech.de>, Rob Herring <robh+dt@...nel.org>,
        linux-rockchip@...ts.infradead.org,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Ezequiel Garcia <ezequiel@...labora.com>
Subject: Re: [PATCH 4/4] arm64: dts: rockchip: Enable the GPU on Quartz64
 Model A

On 2022-01-14 16:25, Piotr Oniszczuk wrote:
> 
> 
>> Wiadomość napisana przez Alex Bee <knaerzche@...il.com> w dniu 26.11.2021, o godz. 16:17:
>>
>> From: Ezequiel Garcia <ezequiel@...labora.com>
>>
>> Enable the GPU core on the Pine64 Quartz64 Model A.
>>
>> Signed-off-by: Ezequiel Garcia <ezequiel@...labora.com>
>> Signed-off-by: Alex Bee <knaerzche@...il.com>
>> ---
>> arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts | 5 +++++
>> 1 file changed, 5 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
>> index 4d4b2a301b1a..625489c60622 100644
>> --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
>> +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
>> @@ -205,6 +205,11 @@ &gmac1m0_clkinout
>> 	status = "okay";
>> };
>>
>> +&gpu {
>> +	mali-supply = <&vdd_gpu>;
>> +	status = "okay";
>> +};
>> +
>> &i2c0 {
>> 	status = "okay";
>>
>> -- 
>>
> 
> Alex, Ezequiel
> 
> I'm playing with 5.16 mainline on rk3566 based tvbox (x96-x6)
> 
> Box boots and I have working SD card, Eth, HDMI.
> 
> I applied this series as I want to get GPU working but I'm getting:
> 
> [    3.169144] panfrost fde60000.gpu: get clock failed -517
> [    3.169646] panfrost fde60000.gpu: clk init failed -517
> [    3.213653] panfrost fde60000.gpu: get clock failed -517
> [    3.214156] panfrost fde60000.gpu: clk init failed -517
> [    3.230505] panfrost fde60000.gpu: get clock failed -517
> [    3.231006] panfrost fde60000.gpu: clk init failed -517
> [    3.258072] panfrost fde60000.gpu: get clock failed -517
> [    3.258575] panfrost fde60000.gpu: clk init failed -517
> 
> Maybe you have some hints here?

517 is EPROBE_DEFER, which implies it's waiting for the relevant clock 
provider to show up. I see from patch #2 that SCMI is involved, so I'd 
check that that's working and you have CONFIG_COMMON_CLOCK_SCMI enabled.

Robin.