Re: [PATCH v2 2/3] dt-bindings: pwm: add IPQ6018 binding
From: Bjorn Andersson <hidden>
Date: 2021-06-02 23:07:18
Also in:
linux-arm-kernel, linux-arm-msm, linux-pwm
On Mon 24 May 05:20 CDT 2021, Baruch Siach wrote:
quoted hunk ↗ jump to hunk
DT binding for the PWM block in Qualcomm IPQ6018 SoC. Signed-off-by: Baruch Siach <baruch@tkos.co.il> --- v2: Make #pwm-cells const (Rob Herring) --- .../devicetree/bindings/pwm/ipq-pwm.yaml | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/ipq-pwm.yamldiff --git a/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml b/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml new file mode 100644 index 000000000000..f85ce808a14e --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml@@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/ipq-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm IPQ6018 PWM controller + +maintainers: + - Baruch Siach <baruch@tkos.co.il> + +properties: + "#pwm-cells": + const: 2 + + compatible: + const: qcom,pwm-ipq6018 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + const: core + +required: + - "#pwm-cells" + - compatible + - reg + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/qcom,gcc-ipq6018.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + pwm@1941010 { + #pwm-cells = <2>; + compatible = "qcom,pwm-ipq6018"; + reg = <0x0 0x1941010 0x0 0x20>;
These 32 bytes are in the middle of the TCSR block, which is already partially described by the &tcsr_q6 node, which is described as only compatible = "syscon" - something no longer accepted by the DT maintainers. As such, I think we should adjust the &tcsr_q6 definition to cover the entire TCSR: 0x01937000 of size 0x21000. @Rob, should we represent the entire tcsr as a simple-mfd and then have the pwm and q6 region as children of that? Or can we make the whole thing as a simple-mfd and a syscon and only describe the pwm as a child? Regards, Bjorn
+ clocks = <&gcc GCC_ADSS_PWM_CLK>; + clock-names = "core"; + }; + }; -- 2.30.2