| Message ID | 20240910-rtc-v3-1-1fa077a69a20@amlogic.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | support for amlogic rtc | expand |
On Tue, Sep 10, 2024 at 06:14:18PM +0800, Xianwei Zhao wrote: > From: Yiting Deng <yiting.deng@amlogic.com> > > Add documentation describing the Amlogic A4(A113L2) and A5(A113X2) RTC. > > Signed-off-by: Yiting Deng <yiting.deng@amlogic.com> > Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com> > --- > .../devicetree/bindings/rtc/amlogic,a4-rtc.yaml | 63 ++++++++++++++++++++++ > 1 file changed, 63 insertions(+) > > diff --git a/Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml b/Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml > new file mode 100644 > index 000000000000..eee994753a12 > --- /dev/null > +++ b/Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml > @@ -0,0 +1,63 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +# Copyright (C) 2024 Amlogic, Inc. All rights reserved > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/rtc/amlogic,a4-rtc.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Amlogic A4 and A5 RTC > + > +maintainers: > + - Yiting Deng <yiting.deng@amlogic.com> > + - Xianwei Zhao <xianwei.zhao@amlogic.com> > + > +allOf: > + - $ref: rtc.yaml# > + > +properties: > + compatible: > + enum: > + - amlogic,a4-rtc > + - amlogic,a5-rtc > + > + reg: > + maxItems: 1 > + > + clocks: > + items: > + - description: RTC clock source, available 24M or 32K crystal > + oscillator source. when using 24M, need to divide 24M into 32K. > + - description: RTC module accesses the clock of the apb bus. > + > + clock-names: > + items: > + - const: osc > + - const: sys > + > + interrupts: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - interrupts If there is going to be a new version, keep the same order as in properties: section. Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Best regards, Krzysztof
diff --git a/Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml b/Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml new file mode 100644 index 000000000000..eee994753a12 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/amlogic,a4-rtc.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2024 Amlogic, Inc. All rights reserved +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/amlogic,a4-rtc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic A4 and A5 RTC + +maintainers: + - Yiting Deng <yiting.deng@amlogic.com> + - Xianwei Zhao <xianwei.zhao@amlogic.com> + +allOf: + - $ref: rtc.yaml# + +properties: + compatible: + enum: + - amlogic,a4-rtc + - amlogic,a5-rtc + + reg: + maxItems: 1 + + clocks: + items: + - description: RTC clock source, available 24M or 32K crystal + oscillator source. when using 24M, need to divide 24M into 32K. + - description: RTC module accesses the clock of the apb bus. + + clock-names: + items: + - const: osc + - const: sys + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + apb { + #address-cells = <2>; + #size-cells = <2>; + + rtc@8e600 { + compatible = "amlogic,a4-rtc"; + reg = <0x0 0x8e600 0x0 0x38>; + interrupts = <GIC_SPI 131 IRQ_TYPE_EDGE_RISING>; + clocks = <&xtal_32k>, <&clkc_periphs 1>; + clock-names = "osc", "sys"; + }; + };