Re: [PATCH RFC 4/4] arm64: dts: qcom: Enable GPU & GMU on Glymur CRD

Akhil P Oommen
2026-04-07T19:21:11Z

On 4/5/2026 3:14 AM, Dmitry Baryshkov wrote:
> On Sun, Apr 05, 2026 at 02:33:17AM +0530, Akhil P Oommen wrote:
>> Enable the necessary DT nodes to add support for GPU on the Glymur CRD.
>> The Glymur CRD boots Linux at EL2, which means it doesn't require the
>> secure GPU firmware (zap fw).
>
> Is this going to be a default mode for other laptops too? Otherwise it
> might be better to keep ZAP node enabled by default and disable it here.

I believe so. Anyway the laptops are hitting the market right now. If
anyone reports that the EL2 is locked down, we can revisit this.

-Akhil.

>
>>
>> Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
>> ---
>> arch/arm64/boot/dts/qcom/glymur-crd.dts | 8 ++++++++
>> 1 file changed, 8 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dts b/arch/arm64/boot/dts/qcom/glymur-crd.dts
>> index 51ea23a49b9e..a579df902323 100644
>> --- a/arch/arm64/boot/dts/qcom/glymur-crd.dts
>> +++ b/arch/arm64/boot/dts/qcom/glymur-crd.dts
>> @@ -110,6 +110,14 @@ vreg_misc_3p3: regulator-misc-3p3 {
>> };
>> };
>>
>> +&gpu {
>> + status = "okay";
>> +};
>> +
>> +&gmu {
>> + status = "okay";
>> +};
>> +
>> &i2c0 {
>> clock-frequency = <400000>;
>>
>>
>> --
>> 2.51.0
>>
>