On Thu, May 14, 2020 at 04:24:15PM +0530, Sharat Masetty wrote:
> Subject: arm64: dts: qcom: sc7180: Add opp-peak-kBps to GPU opp
nit: s/opp/OPPs/
>
> Add opp-peak-kBps bindings to the GPU opp table, listing the peak
> GPU -> DDR bandwidth requirement for each opp level. This will be
> used to scale the DDR bandwidth along with the GPU frequency dynamically.
>
> Signed-off-by: Sharat Masetty
> ---
> arch/arm64/boot/dts/qcom/sc7180.dtsi | 7 +++
> 1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> index 0ce9921..89f7767 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
> @@ -1392,36 +1392,43 @@
> opp-8 {
> opp-hz = /bits/ 64 <8>;
> opp-level =
> ;
> + opp-peak-kBps = <8532000>;
> };
>
> opp-65000 {
> opp-hz = /bits/ 64 <65000>;
> opp-level =
> ;
> + opp-peak-kBps = <7216000>;
> };
>
> opp-56500 {
> opp-hz = /bits/ 64 <56500>;
> opp-level = ;
> + opp-peak-kBps = <5412000>;
> };
>
> opp-43000 {
> opp-hz = /bits/ 64 <43000>;
> opp-level =
> ;
> + opp-peak-kBps = <5412000>;
I suppose it's intentional that the bandwidth is the same as for opp-56500,
just want to mention it for if it's a C error.
> };
>
> opp-35500 {
> opp-hz = /bits/ 64 <35500>;
> opp-level = ;
> + opp-peak-kBps = <3072000>;
> };
>
> opp-26700 {
> opp-hz = /bits/ 64 <26700>;
> opp-level =
> ;
> + opp-peak-kBps = <3072000>;
> };
ditto
> opp-18000 {
> opp-hz = /bits/ 64 <18000>;
> opp-level =
> ;
> + opp-peak-kBps = <1804000>;
> };
> };
> };
assuming the repeated bandwidths are indeed intentional:
Reviewed-by: Matthias Kaehlcke
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