Re: [PATCH v2 5/5] arm64: boot: dts: qcom: sc8280xp: Add in CAMCC for sc8280xp

[Konrad Dybcio]

On 10/1/23 01:01, Bryan O'Donoghue wrote:
> On 30/09/2023 17:41, Konrad Dybcio wrote:
> > On 9/30/23 15:41, Bryan O'Donoghue wrote:
> > > Add in CAMCC for sc8280xp. The sc8280xp Camera Clock Controller looks
> > > similar to most of the sdmX, smX and now scX controllers.
> > >
> > > Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
> > > ---
> > >   arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 16 ++++++++++++++++
> > >   1 file changed, 16 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi 
> > > b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> > > index cad59af7ccef..ca43d038578b 100644
> > > --- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> > > +++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
> > > @@ -8,6 +8,7 @@
> > >   #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>
> > >   #include <dt-bindings/clock/qcom,gpucc-sc8280xp.h>
> > >   #include <dt-bindings/clock/qcom,rpmh.h>
> > > +#include <dt-bindings/clock/qcom,sc8280xp-camcc.h>
> > >   #include <dt-bindings/clock/qcom,sc8280xp-lpasscc.h>
> > >   #include <dt-bindings/interconnect/qcom,osm-l3.h>
> > >   #include <dt-bindings/interconnect/qcom,sc8280xp.h>
> > > @@ -3450,6 +3451,21 @@ usb_1_role_switch: endpoint {
> > >               };
> > >           };
> > > +        camcc: clock-controller@ad00000 {
> > > +            compatible = "qcom,sc8280xp-camcc";
> > > +            reg = <0 0x0ad00000 0 0x20000>;
> > > +            clocks = <&gcc GCC_CAMERA_AHB_CLK>,
> > > +                 <&rpmhcc RPMH_CXO_CLK>,
> > > +                 <&rpmhcc RPMH_CXO_CLK_A>,
> > > +                 <&sleep_clk>;
> > > +            clock-names = "iface", "bi_tcxo", "bi_tcxo_ao", 
> > > "sleep_clk";
> > clock-names is now redundant :)
> >
> > Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> >
> > Konrad
>
> BTW.
>
> Looking at the block diagram for the Camera, I see why Cam_CC_AHB is 
> included in this list. Its not called out as a dependency in the clock 
> tree but when you look at the block diagram you can see it gates the AHB 
> bus to the CAM_CC block.
Yep, that's why using is as pm_clk for the clock controller makes sense

Konrad