| Message ID | 20210710122446.5439-1-tinghan.shen@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,1/2] dt-bindings: remoteproc: mediatek: Add binding for mt8195 scp | expand |
On Sat, Jul 10, 2021 at 8:25 PM Tinghan Shen <tinghan.shen@mediatek.com> wrote: > @@ -5,13 +5,15 @@ This binding provides support for ARM Cortex M4 Co-processor found on some > Mediatek SoCs. > > Required properties: > -- compatible Should be "mediatek,mt8183-scp" > +- compatible Should be one of: > + "mediatek,mt8183-scp" > + "mediatek,mt8195-scp" Just realized we forgot to add DT bindings for mediatek,mt8192-scp[1]. Could you send another patch for adding the missing property? [1]: https://elixir.bootlin.com/linux/v5.13.1/source/drivers/remoteproc/mtk_scp.c#L879 > -- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) > -- clock-names Contains the corresponding name for the clock. This > +- clocks Required by mt8183. Clock for co-processor (See: ../clock/clock-bindings.txt) > +- clock-names Required by mt8183. Contains the corresponding name for the clock. This > should be named "main". Let's move clocks and clock-names to "Optional properties". See [2] for your reference. I guess it doesn't need to mention which chip needs the properties. For those chips that need the clock properties, they won't work correctly without correct clock properties. [2]: https://elixir.bootlin.com/linux/v5.13.1/source/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt#L87 Suggested to provide a cover letter for the series next time. nit: other patches usually use "[PATCH v2 1/2]" in the email title instead of the one used in the mail.
On Mon, Jul 12, 2021 at 2:06 PM Tzung-Bi Shih <tzungbi@google.com> wrote: > > On Sat, Jul 10, 2021 at 8:25 PM Tinghan Shen <tinghan.shen@mediatek.com> wrote: > > @@ -5,13 +5,15 @@ This binding provides support for ARM Cortex M4 Co-processor found on some > > Mediatek SoCs. > > > > Required properties: > > -- compatible Should be "mediatek,mt8183-scp" > > +- compatible Should be one of: > > + "mediatek,mt8183-scp" > > + "mediatek,mt8195-scp" > Just realized we forgot to add DT bindings for mediatek,mt8192-scp[1]. > Could you send another patch for adding the missing property? > > [1]: https://elixir.bootlin.com/linux/v5.13.1/source/drivers/remoteproc/mtk_scp.c#L879 > > > -- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) > > -- clock-names Contains the corresponding name for the clock. This > > +- clocks Required by mt8183. Clock for co-processor (See: ../clock/clock-bindings.txt) > > +- clock-names Required by mt8183. Contains the corresponding name for the clock. This > > should be named "main". > Let's move clocks and clock-names to "Optional properties". See [2] > for your reference. I guess it doesn't need to mention which chip > needs the properties. For those chips that need the clock properties, > they won't work correctly without correct clock properties. I would suggest still adding them. We will need to describe the requirements anyway then the binding is converted to DT schema. ChenYu > [2]: https://elixir.bootlin.com/linux/v5.13.1/source/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt#L87 > > > Suggested to provide a cover letter for the series next time. > > nit: other patches usually use "[PATCH v2 1/2]" in the email title > instead of the one used in the mail. > > _______________________________________________ > Linux-mediatek mailing list > Linux-mediatek@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-mediatek
On Mon, Jul 12, 2021 at 2:59 PM Chen-Yu Tsai <wenst@chromium.org> wrote: > > On Mon, Jul 12, 2021 at 2:06 PM Tzung-Bi Shih <tzungbi@google.com> wrote: > > > > On Sat, Jul 10, 2021 at 8:25 PM Tinghan Shen <tinghan.shen@mediatek.com> wrote: > > > @@ -5,13 +5,15 @@ This binding provides support for ARM Cortex M4 Co-processor found on some > > > Mediatek SoCs. > > > > > > Required properties: > > > -- compatible Should be "mediatek,mt8183-scp" > > > +- compatible Should be one of: > > > + "mediatek,mt8183-scp" > > > + "mediatek,mt8195-scp" > > Just realized we forgot to add DT bindings for mediatek,mt8192-scp[1]. > > Could you send another patch for adding the missing property? > > > > [1]: https://elixir.bootlin.com/linux/v5.13.1/source/drivers/remoteproc/mtk_scp.c#L879 > > > > > -- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) > > > -- clock-names Contains the corresponding name for the clock. This > > > +- clocks Required by mt8183. Clock for co-processor (See: ../clock/clock-bindings.txt) > > > +- clock-names Required by mt8183. Contains the corresponding name for the clock. This > > > should be named "main". > > Let's move clocks and clock-names to "Optional properties". See [2] > > for your reference. I guess it doesn't need to mention which chip > > needs the properties. For those chips that need the clock properties, > > they won't work correctly without correct clock properties. > > I would suggest still adding them. We will need to describe the requirements > anyway then the binding is converted to DT schema. Also, a coprocessor without any clock feeding it makes little sense. Any processor requires a running clock. Whether that clock is controllable is beside the point. > ChenYu > > > [2]: https://elixir.bootlin.com/linux/v5.13.1/source/Documentation/devicetree/bindings/remoteproc/ti,keystone-rproc.txt#L87 > > > > > > Suggested to provide a cover letter for the series next time. > > > > nit: other patches usually use "[PATCH v2 1/2]" in the email title > > instead of the one used in the mail. > > > > _______________________________________________ > > Linux-mediatek mailing list > > Linux-mediatek@lists.infradead.org > > http://lists.infradead.org/mailman/listinfo/linux-mediatek
diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.txt b/Documentation/devicetree/bindings/remoteproc/mtk,scp.txt index 3f5f78764b60..d64466eefbe3 100644 --- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.txt +++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.txt @@ -5,13 +5,15 @@ This binding provides support for ARM Cortex M4 Co-processor found on some Mediatek SoCs. Required properties: -- compatible Should be "mediatek,mt8183-scp" +- compatible Should be one of: + "mediatek,mt8183-scp" + "mediatek,mt8195-scp" - reg Should contain the address ranges for memory regions: SRAM, CFG, and L1TCM. - reg-names Contains the corresponding names for the memory regions: "sram", "cfg", and "l1tcm". -- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) -- clock-names Contains the corresponding name for the clock. This +- clocks Required by mt8183. Clock for co-processor (See: ../clock/clock-bindings.txt) +- clock-names Required by mt8183. Contains the corresponding name for the clock. This should be named "main". Subnodes
Add mt8195 compatible to binding document. The description of required properties are also modified to reflect the hardware change between mt8183 and mt8195. The mt8195 doesn't have to control the scp clock on kernel side. Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com> --- changes in v2: - fix missing 'compatible' line in binding document Documentation/devicetree/bindings/remoteproc/mtk,scp.txt | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)