From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Add device tree bindings for the real time clock on the Microchip PolarFire SoC. Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> Signed-off-by: Daire McNamara <daire.mcnamara@xxxxxxxxxxxxx> --- .../bindings/rtc/microchip,mfps-rtc.yaml | 63 +++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml diff --git a/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml b/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml new file mode 100644 index 000000000000..d57460cbe5e3 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/microchip,mfps-rtc.yaml# + +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip PolarFire Soc (MPFS) RTC Device Tree Bindings + +allOf: + - $ref: rtc.yaml# + +maintainers: + - Daire McNamara <daire.mcnamara@xxxxxxxxxxxxx> + - Lewis Hanly <lewis.hanly@xxxxxxxxxxxxx> + +properties: + compatible: + enum: + - microchip,mpfs-rtc + + reg: + maxItems: 1 + + interrupts: + maxItems: 2 + + microchip,prescaler: + description: | + The prescaler divides the input frequency to create a time-based strobe (typically 1 Hz) for + the calendar counter. The Alarm and Compare Registers, in conjunction with the calendar + counter, facilitate time-matched events. To properly operate in Calendar or Binary mode, + the 26-bit prescaler must be programmed to generate a strobe to the RTC. + maxItems: 1 + $ref: /schemas/types.yaml#/definitions/uint32 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: rtc + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/microchip,mpfs-clock.h> + rtc@20124000 { + compatible = "microchip,mpfs-rtc"; + reg = <0x20124000 0x1000>; + clocks = <&clkcfg CLK_RTC>; + clock-names = "rtc"; + interrupts = <80>, <81>; + }; +... -- 2.33.1
