Re: [PATCH 3/4] arm64: dts: qcom: sdm670: add gpu

[Richard Acayan <mailingradian@gmail.com>]

On Mon, Jul 29, 2024 at 09:38:48PM -0400, Richard Acayan wrote:
> The Snapdragon 670 has the Adreno A615 GPU. Add it along with its device
> tree dependencies.
>
> Signed-off-by: Richard Acayan <mailingradian@gmail.com>
> ---
>  arch/arm64/boot/dts/qcom/sdm670.dtsi | 168 +++++++++++++++++++++++++++
>  1 file changed, 168 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm670.dtsi b/arch/arm64/boot/dts/qcom/sdm670.dtsi
> index 187c6698835d..467006ab2bcb 100644
> --- a/arch/arm64/boot/dts/qcom/sdm670.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm670.dtsi

[snip]

> +
> +			gpu_opp_table: opp-table {
> +				compatible = "operating-points-v2";
> +
> +				opp-780000000 {
> +					opp-hz = /bits/ 64 <780000000>;
> +					opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
> +					opp-peak-kBps = <7216000>;
> +					opp-supported-hw = <0x8>;
> +				};
> +
> +				opp-750000000 {
> +					opp-hz = /bits/ 64 <750000000>;
> +					opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
> +					opp-peak-kBps = <7216000>;
> +					opp-supported-hw = <0xc>;
> +				};
> +
> +				opp-650000000 {
> +					opp-hz = /bits/ 64 <650000000>;
> +					opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
> +					opp-peak-kBps = <7216000>;
> +					opp-supported-hw = <0xc>;
> +				};
> +
> +				opp-565000000 {
> +					opp-hz = /bits/ 64 <565000000>;
> +					opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
> +					opp-peak-kBps = <7216000>;
> +					opp-supported-hw = <0xe>;

The speed bins aren't entirely accurate. There is a single speed bin
that can reach exactly 504 MHz, but no higher, and one other speed bin
that can reach exactly 700 MHz. Let's add their exclusive OPPs.

> +				};
> +
> +				opp-430000000 {
> +					opp-hz = /bits/ 64 <430000000>;
> +					opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
> +					opp-peak-kBps = <7216000>;
> +					opp-supported-hw = <0xf>;
> +				};
> +
> +				opp-355000000 {
> +					opp-hz = /bits/ 64 <355000000>;
> +					opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
> +					opp-peak-kBps = <6220000>;
> +					opp-supported-hw = <0xf>;
> +				};
> +
> +				opp-267000000 {
> +					opp-hz = /bits/ 64 <267000000>;
> +					opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
> +					opp-peak-kBps = <4068000>;
> +					opp-supported-hw = <0xf>;
> +				};
> +
> +				opp-180000000 {
> +					opp-hz = /bits/ 64 <180000000>;
> +					opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
> +					opp-peak-kBps = <1804000>;
> +					opp-supported-hw = <0xf>;
> +				};
> +			};