Re: [PATCH v6 09/10] arm64: dts: qcom: sc7180: Add support for HDCP in dp-controller

Dmitry Baryshkov
2023-01-19T08:40:51Z

On Wed, 18 Jan 2023 at 21:30, Mark Yacoub <markyacoub@chromium.org> wrote:
>
> From: Sean Paul <seanpaul@chromium.org>
>
> This patch adds the register ranges required for HDCP key injection and
> HDCP TrustZone interaction as described in the dt-bindings for the
> sc7180 dp controller. Now that these are supported, change the
> compatible string to "dp-hdcp".

No change in compatibles, so patch description should be updated.

>
> Signed-off-by: Sean Paul <seanpaul@chromium.org>
> Signed-off-by: Mark Yacoub <markyacoub@chromium.org>
> Link: https://patchwork.freedesktop.org/patch/msgid/20210913175747.47456-15-sean@poorly.run #v1
> Link: https://patchwork.freedesktop.org/patch/msgid/20210915203834.1439-14-sean@poorly.run #v2
> Link: https://patchwork.freedesktop.org/patch/msgid/20211001151145.55916-14-sean@poorly.run #v3
> Link: https://patchwork.freedesktop.org/patch/msgid/20211105030434.2828845-14-sean@poorly.run #v4
> Link: https://patchwork.freedesktop.org/patch/msgid/20220411204741.1074308-10-sean@poorly.run #v5

Again, this probably belongs to a cover letter

>
> Changes in v3:
> -Split off into a new patch containing just the dts change (Stephen)
> -Add hdcp compatible string (Stephen)
> Changes in v4:
> -Rebase on Bjorn's multi-dp patchset
> Changes in v5:
> -Put the tz register offsets in trogdor dtsi (Rob C)
> Changes in v6:
> -Rebased: Removed modifications in sc7180.dtsi as it's already upstream
>
> ---
> arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> index 178efaaa89ec..6f6fe5cb6563 100644
> --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
> @@ -817,6 +817,14 @@ &mdss_dp {
> pinctrl-names = "default";
> pinctrl-0 = <&dp_hot_plug_det>;
> data-lanes = <0 1>;
> +
> + reg = <0 0x0ae90000 0 0x200>,
> + <0 0x0ae90200 0 0x200>,
> + <0 0x0ae90400 0 0xc00>,
> + <0 0x0ae91000 0 0x400>,
> + <0 0x0ae91400 0 0x400>,
> + <0 0x0aed1000 0 0x175>,
> + <0 0x0aee1000 0 0x2c>;

Is there any reason for adding these to the -trogdor instead of adding
them to the base dtsi? Does hardware differ between the sc7180.dtsi
and sc7180-trogdor.dtsi?

> };
>
> &pm6150_adc {
> --
> 2.39.0.246.g2a6d74b583-goog
>

--
With best wishes
Dmitry