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| author |   Valentin Caron <valentin.caron@foss.st.com> | 2024-07-22 18:00:19 +0200 |
|---|---|---|
| committer |   Alexandre Belloni <alexandre.belloni@bootlin.com> | 2024-08-14 11:37:07 +0200 |
| commit | 5b19519d4e6ff70c8bd7fc50055c910e141fd5f8 (patch) | |
| tree | e75faba7f4b833ef6233ea86d87093e6b464e8dc | |
| parent | Linux 6.11-rc1 (diff) | |
| download | wireguard-linux-5b19519d4e6ff70c8bd7fc50055c910e141fd5f8.tar.xz wireguard-linux-5b19519d4e6ff70c8bd7fc50055c910e141fd5f8.zip | |
dt-bindings: rtc: stm32: describe pinmux nodes
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>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240722160022.454226-2-valentin.caron@foss.st.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to '')
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/st,stm32-rtc.yaml | 28 |
1 files changed, 28 insertions, 0 deletions
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 |