| Message ID | 20210504052844.21096-3-shawn.guo@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | Add MSM8939 APCS/A53PLL clock support | expand |
On Tue, May 04, 2021 at 01:28:41PM +0800, Shawn Guo wrote: > Update qcom,a53pll bindings for MSM8939 support: > > - Add optional clock-output-names property. > - Add MSM8939 specific compatibles. > - Add MSM8939 examples. > > Signed-off-by: Shawn Guo <shawn.guo@linaro.org> > --- > .../bindings/clock/qcom,a53pll.yaml | 34 +++++++++++++++++++ > 1 file changed, 34 insertions(+) > > diff --git a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml > index db3d0ea6bc7a..7a410a76be2f 100644 > --- a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml > +++ b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml > @@ -18,6 +18,9 @@ properties: > enum: > - qcom,ipq6018-a53pll > - qcom,msm8916-a53pll > + - qcom,msm8939-a53pll-c0 > + - qcom,msm8939-a53pll-c1 > + - qcom,msm8939-a53pll-cci These 3 have differences? > > reg: > maxItems: 1 > @@ -33,6 +36,9 @@ properties: > items: > - const: xo > > + clock-output-names: > + maxItems: 1 > + > required: > - compatible > - reg > @@ -57,3 +63,31 @@ examples: > clocks = <&xo>; > clock-names = "xo"; > }; > + #Example 3 - A53 PLLs found on MSM8939 devices > + - | > + a53pll_c1: clock-controller@b016000 { > + compatible = "qcom,msm8939-a53pll-c1"; > + reg = <0xb016000 0x40>; > + #clock-cells = <0>; > + clocks = <&xo_board>; > + clock-names = "xo"; > + clock-output-names = "a53pll_c1"; > + }; > + > + a53pll_c0: clock-controller@b116000 { > + compatible = "qcom,msm8939-a53pll-c0"; > + reg = <0xb116000 0x40>; > + #clock-cells = <0>; > + clocks = <&xo_board>; > + clock-names = "xo"; > + clock-output-names = "a53pll_c0"; > + }; > + > + a53pll_cci: clock-controller@b1d0000 { > + compatible = "qcom,msm8939-a53pll-cci"; > + reg = <0xb1d0000 0x40>; > + #clock-cells = <0>; > + clocks = <&xo_board>; > + clock-names = "xo"; > + clock-output-names = "a53pll_cci"; > + }; Do these examples really add anything?
On Thu, May 06, 2021 at 03:27:26PM -0500, Rob Herring wrote: > On Tue, May 04, 2021 at 01:28:41PM +0800, Shawn Guo wrote: > > Update qcom,a53pll bindings for MSM8939 support: > > > > - Add optional clock-output-names property. > > - Add MSM8939 specific compatibles. > > - Add MSM8939 examples. > > > > Signed-off-by: Shawn Guo <shawn.guo@linaro.org> > > --- > > .../bindings/clock/qcom,a53pll.yaml | 34 +++++++++++++++++++ > > 1 file changed, 34 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml > > index db3d0ea6bc7a..7a410a76be2f 100644 > > --- a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml > > +++ b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml > > @@ -18,6 +18,9 @@ properties: > > enum: > > - qcom,ipq6018-a53pll > > - qcom,msm8916-a53pll > > + - qcom,msm8939-a53pll-c0 > > + - qcom,msm8939-a53pll-c1 > > + - qcom,msm8939-a53pll-cci > > These 3 have differences? Yes. They need to hook up with different frequency table as shown in patch #5. > > > > > reg: > > maxItems: 1 > > @@ -33,6 +36,9 @@ properties: > > items: > > - const: xo > > > > + clock-output-names: > > + maxItems: 1 > > + > > required: > > - compatible > > - reg > > @@ -57,3 +63,31 @@ examples: > > clocks = <&xo>; > > clock-names = "xo"; > > }; > > + #Example 3 - A53 PLLs found on MSM8939 devices > > + - | > > + a53pll_c1: clock-controller@b016000 { > > + compatible = "qcom,msm8939-a53pll-c1"; > > + reg = <0xb016000 0x40>; > > + #clock-cells = <0>; > > + clocks = <&xo_board>; > > + clock-names = "xo"; > > + clock-output-names = "a53pll_c1"; > > + }; > > + > > + a53pll_c0: clock-controller@b116000 { > > + compatible = "qcom,msm8939-a53pll-c0"; > > + reg = <0xb116000 0x40>; > > + #clock-cells = <0>; > > + clocks = <&xo_board>; > > + clock-names = "xo"; > > + clock-output-names = "a53pll_c0"; > > + }; > > + > > + a53pll_cci: clock-controller@b1d0000 { > > + compatible = "qcom,msm8939-a53pll-cci"; > > + reg = <0xb1d0000 0x40>; > > + #clock-cells = <0>; > > + clocks = <&xo_board>; > > + clock-names = "xo"; > > + clock-output-names = "a53pll_cci"; > > + }; > > Do these examples really add anything? The example was added to demonstrate that multiple A53PLL clock controllers could be found on a single SoC. But I'm happy to drop it if you think it's not so useful. Shawn
diff --git a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml index db3d0ea6bc7a..7a410a76be2f 100644 --- a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml +++ b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml @@ -18,6 +18,9 @@ properties: enum: - qcom,ipq6018-a53pll - qcom,msm8916-a53pll + - qcom,msm8939-a53pll-c0 + - qcom,msm8939-a53pll-c1 + - qcom,msm8939-a53pll-cci reg: maxItems: 1 @@ -33,6 +36,9 @@ properties: items: - const: xo + clock-output-names: + maxItems: 1 + required: - compatible - reg @@ -57,3 +63,31 @@ examples: clocks = <&xo>; clock-names = "xo"; }; + #Example 3 - A53 PLLs found on MSM8939 devices + - | + a53pll_c1: clock-controller@b016000 { + compatible = "qcom,msm8939-a53pll-c1"; + reg = <0xb016000 0x40>; + #clock-cells = <0>; + clocks = <&xo_board>; + clock-names = "xo"; + clock-output-names = "a53pll_c1"; + }; + + a53pll_c0: clock-controller@b116000 { + compatible = "qcom,msm8939-a53pll-c0"; + reg = <0xb116000 0x40>; + #clock-cells = <0>; + clocks = <&xo_board>; + clock-names = "xo"; + clock-output-names = "a53pll_c0"; + }; + + a53pll_cci: clock-controller@b1d0000 { + compatible = "qcom,msm8939-a53pll-cci"; + reg = <0xb1d0000 0x40>; + #clock-cells = <0>; + clocks = <&xo_board>; + clock-names = "xo"; + clock-output-names = "a53pll_cci"; + };
Update qcom,a53pll bindings for MSM8939 support: - Add optional clock-output-names property. - Add MSM8939 specific compatibles. - Add MSM8939 examples. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> --- .../bindings/clock/qcom,a53pll.yaml | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) -- 2.17.1