Re: [PATCH v2 07/17] dt-bindings: rtc: add bindings for microchip mpfs rtc
From: Rob Herring <robh@kernel.org>
Date: 2021-12-20 14:37:59
Also in:
linux-crypto, linux-devicetree, linux-i2c, linux-pwm, linux-riscv, linux-rtc, linux-spi, linux-usb, lkml
On Fri, Dec 17, 2021 at 09:33:15AM +0000, conor.dooley@microchip.com wrote:
quoted hunk ↗ jump to hunk
From: Conor Dooley <conor.dooley@microchip.com> Add device tree bindings for the real time clock on the Microchip PolarFire SoC. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com> --- .../bindings/rtc/microchip,mfps-rtc.yaml | 63 +++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yamldiff --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@microchip.com> + - Lewis Hanly <lewis.hanly@microchip.com> + +properties: + compatible: + enum: + - microchip,mpfs-rtc + + reg: + maxItems: 1 + + interrupts: + maxItems: 2
Need to define what each one is.
+
+ 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