| Message ID | 20240722160022.454226-2-valentin.caron@foss.st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | rtc: stm32: add pinctrl interface to handle RTC outs | expand |
On 22/07/2024 18:00, Valentin Caron wrote: > STM32 RTC is capable to handle 3 specific pins of the soc (out1, out2, > out2_rmp) and to outputs 2 signals (LSCO, alarm-a). > > This feature is configured thanks to pinmux nodes and pinctrl framework. > This feature is available with compatible st,stm32mp1-rtc and > st,stm32mp25-rtc only. > > Signed-off-by: Valentin Caron <valentin.caron@foss.st.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
On Mon, Jul 22, 2024 at 6:02 PM Valentin Caron <valentin.caron@foss.st.com> wrote: > STM32 RTC is capable to handle 3 specific pins of the soc (out1, out2, > out2_rmp) and to outputs 2 signals (LSCO, alarm-a). > > This feature is configured thanks to pinmux nodes and pinctrl framework. > This feature is available with compatible st,stm32mp1-rtc and > st,stm32mp25-rtc only. > > Signed-off-by: Valentin Caron <valentin.caron@foss.st.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij
diff --git a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml index 7a0fab721cf1..aae06e570c22 100644 --- a/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml +++ b/Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml @@ -53,6 +53,28 @@ properties: override default rtc_ck parent clock phandle of the new parent clock of rtc_ck maxItems: 1 +patternProperties: + "^rtc-[a-z]+-[0-9]+$": + type: object + $ref: /schemas/pinctrl/pinmux-node.yaml + description: | + Configuration of STM32 RTC pins description. STM32 RTC is able to output + some signals on specific pins: + - LSCO (Low Speed Clock Output) that allow to output LSE clock on a pin. + - Alarm out that allow to send a pulse on a pin when alarm A of the RTC + expires. + additionalProperties: false + properties: + function: + enum: + - lsco + - alarm-a + pins: + enum: + - out1 + - out2 + - out2_rmp + allOf: - if: properties: @@ -68,6 +90,9 @@ allOf: clock-names: false + patternProperties: + "^rtc-[a-z]+-[0-9]+$": false + required: - st,syscfg @@ -83,6 +108,9 @@ allOf: minItems: 2 maxItems: 2 + patternProperties: + "^rtc-[a-z]+-[0-9]+$": false + required: - clock-names - st,syscfg
STM32 RTC is capable to handle 3 specific pins of the soc (out1, out2, out2_rmp) and to outputs 2 signals (LSCO, alarm-a). This feature is configured thanks to pinmux nodes and pinctrl framework. This feature is available with compatible st,stm32mp1-rtc and st,stm32mp25-rtc only. Signed-off-by: Valentin Caron <valentin.caron@foss.st.com> --- .../devicetree/bindings/rtc/st,stm32-rtc.yaml | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+)