Hi Uli,
On Fri, Dec 15, 2017 at 4:14 PM, Ulrich Hecht
<ulrich.hecht+renesas@xxxxxxxxx> wrote:
> From: Gaku Inami <gaku.inami.xw@xxxxxxxxxxxxxx>
>
> This patch supports GSX frequency scaling using devfreq.
>
> Includes update of the OPP tables for GSX because the typical voltage of
> VDD_DVFS (power optimized) was updated to 0.83V by R-Car Gen3 EC Rev0.54E
> specification.
>
> Signed-off-by: Gaku Inami <gaku.inami.xw@xxxxxxxxxxxxxx>
> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx>
> Signed-off-by: Hien Dang <hien.dang.eb@xxxxxxxxxxx>
> Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@xxxxxxxxx>
Thanks for your patch!
> --- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
> @@ -166,6 +166,27 @@
> };
> };
>
> + gsx_opp_table: gsx_opp_table {
> + compatible = "operating-points-v2";
> +
> + opp@200000000 {
opp-200000000 (try "make dtbs W=1")
> + opp-hz = /bits/ 64 <200000000>;
> + opp-microvolt = <830000>;
> + };
> + opp@300000000 {
> + opp-hz = /bits/ 64 <300000000>;
> + opp-microvolt = <830000>;
> + };
> + opp@400000000 {
> + opp-hz = /bits/ 64 <400000000>;
> + opp-microvolt = <830000>;
> + };
> + opp@600000000 {
> + opp-hz = /bits/ 64 <600000000>;
> + opp-microvolt = <830000>;
Do they really all use the same voltage?
And AFAIU, DVFS is shared between CPU and GPU.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
