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Message-ID: <CAL_Jsq+_2E-bAbP9F6VYkWRp0crEyRGa5peuwP58-PZniVny7w@mail.gmail.com>
Date: Fri, 31 Jan 2020 10:36:10 -0600
From: Rob Herring <robh@...nel.org>
To: Douglas Anderson <dianders@...omium.org>
Cc: Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Stephen Boyd <sboyd@...nel.org>,
Jeffrey Hugo <jhugo@...eaurora.org>,
Taniya Das <tdas@...eaurora.org>,
Jeffrey Hugo <jeffrey.l.hugo@...il.com>,
linux-arm-msm <linux-arm-msm@...r.kernel.org>,
Harigovindan P <harigovi@...eaurora.org>,
devicetree@...r.kernel.org, Matthias Kaehlcke <mka@...omium.org>,
Kalyan Thota <kalyan_t@...eaurora.org>,
Mark Rutland <mark.rutland@....com>,
linux-clk <linux-clk@...r.kernel.org>,
"Kristian H. Kristensen" <hoegsberg@...omium.org>,
Michael Turquette <mturquette@...libre.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 11/15] dt-bindings: clock: Cleanup qcom,videocc
bindings for sdm845/sc7180
On Thu, Jan 30, 2020 at 3:13 PM Douglas Anderson <dianders@...omium.org> wrote:
>
> This makes the qcom,videocc bindings match the recent changes to the
> dispcc and gpucc.
>
> 1. Switched to using "bi_tcxo" instead of "xo".
>
> 2. Adds a description for the XO clock. Not terribly important but
> nice if it cleanly matches its cousins.
>
> 3. Updates the example to use the symbolic name for the RPMH clock and
> also show that the real devices are currently using 2 address cells
> / size cells and fixes the spacing on the closing brace.
>
> 4. Split into 2 files. In this case they could probably share one
> file, but let's be consistent.
>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>
> ---
>
> Changes in v3:
> - Added include file to description.
> - Split videocc bindings into 2 files.
> - Unlike in v2, use internal name instead of purist name.
>
> Changes in v2:
> - Patch ("dt-bindings: clock: Cleanup qcom,videocc") new for v2.
>
> .../bindings/clock/qcom,sc7180-videocc.yaml | 63 +++++++++++++++++++
> ...,videocc.yaml => qcom,sdm845-videocc.yaml} | 27 ++++----
> 2 files changed, 77 insertions(+), 13 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/clock/qcom,sc7180-videocc.yaml
> rename Documentation/devicetree/bindings/clock/{qcom,videocc.yaml => qcom,sdm845-videocc.yaml} (60%)
>
> diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7180-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7180-videocc.yaml
> new file mode 100644
> index 000000000000..f12ec56737e8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/qcom,sc7180-videocc.yaml
> @@ -0,0 +1,63 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/bindings/clock/qcom,sc7180-videocc.yaml#
'bindings/' should be removed here. I just found my check on this was
inadequate. The clock bindings seem to have the most copy-n-paste of
this.
Otherwise,
Reviewed-by: Rob Herring <robh@...nel.org>
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Video Clock & Reset Controller Binding for SC7180
> +
> +maintainers:
> + - Taniya Das <tdas@...eaurora.org>
> +
> +description: |
> + Qualcomm video clock control module which supports the clocks, resets and
> + power domains on SC7180.
> +
> + See also dt-bindings/clock/qcom,videocc-sc7180.h.
> +
> +properties:
> + compatible:
> + const: qcom,sc7180-videocc
> +
> + clocks:
> + items:
> + - description: Board XO source
> +
> + clock-names:
> + items:
> + - const: bi_tcxo
> +
> + '#clock-cells':
> + const: 1
> +
> + '#reset-cells':
> + const: 1
> +
> + '#power-domain-cells':
> + const: 1
> +
> + reg:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - clock-names
> + - '#clock-cells'
> + - '#reset-cells'
> + - '#power-domain-cells'
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/qcom,rpmh.h>
> + clock-controller@...0000 {
> + compatible = "qcom,sc7180-videocc";
> + reg = <0 0x0ab00000 0 0x10000>;
> + clocks = <&rpmhcc RPMH_CXO_CLK>;
> + clock-names = "bi_tcxo";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + #power-domain-cells = <1>;
> + };
> +...
> diff --git a/Documentation/devicetree/bindings/clock/qcom,videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,sdm845-videocc.yaml
> similarity index 60%
> rename from Documentation/devicetree/bindings/clock/qcom,videocc.yaml
> rename to Documentation/devicetree/bindings/clock/qcom,sdm845-videocc.yaml
> index 43cfc893a8d1..60300f5ab307 100644
> --- a/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
> +++ b/Documentation/devicetree/bindings/clock/qcom,sdm845-videocc.yaml
> @@ -1,30 +1,31 @@
> # SPDX-License-Identifier: GPL-2.0-only
> %YAML 1.2
> ---
> -$id: http://devicetree.org/schemas/bindings/clock/qcom,videocc.yaml#
> +$id: http://devicetree.org/schemas/bindings/clock/qcom,sdm845-videocc.yaml#
> $schema: http://devicetree.org/meta-schemas/core.yaml#
>
> -title: Qualcomm Video Clock & Reset Controller Binding
> +title: Qualcomm Video Clock & Reset Controller Binding for SDM845
>
> maintainers:
> - Taniya Das <tdas@...eaurora.org>
>
> description: |
> Qualcomm video clock control module which supports the clocks, resets and
> - power domains.
> + power domains on SDM845.
> +
> + See also dt-bindings/clock/qcom,videocc-sdm845.h.
>
> properties:
> compatible:
> - enum:
> - - qcom,sc7180-videocc
> - - qcom,sdm845-videocc
> + const: qcom,sdm845-videocc
>
> clocks:
> - maxItems: 1
> + items:
> + - description: Board XO source
>
> clock-names:
> items:
> - - const: xo
> + - const: bi_tcxo
>
> '#clock-cells':
> const: 1
> @@ -48,15 +49,15 @@ required:
> - '#power-domain-cells'
>
> examples:
> - # Example of VIDEOCC with clock node properties for SDM845:
> - |
> + #include <dt-bindings/clock/qcom,rpmh.h>
> clock-controller@...0000 {
> compatible = "qcom,sdm845-videocc";
> - reg = <0xab00000 0x10000>;
> - clocks = <&rpmhcc 0>;
> - clock-names = "xo";
> + reg = <0 0x0ab00000 0 0x10000>;
> + clocks = <&rpmhcc RPMH_CXO_CLK>;
> + clock-names = "bi_tcxo";
> #clock-cells = <1>;
> #reset-cells = <1>;
> #power-domain-cells = <1>;
> - };
> + };
> ...
> --
> 2.25.0.341.g760bfbb309-goog
>
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