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Wed, 25 Oct 2023 09:22:35 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780745195747290878 X-GMAIL-MSGID: 1780745195747290878 The "hiz-output" property models the RTC output as a high-impedance (hi-Z) output. This property is optional and if it is not defined, the output will either act as an output clock (default mode) or as an interrupt depending on the configuration set by other properties. Two modes are defined in case the high-impedance is used: "enabled" and "sleep". The former disables the RTC output completely while the latter keeps the RTC output disabled until the system enters in sleep mode. This option is especially relevant if the output clock is used to feed a PMU, a PMIC or any other device required to run when the rest of the system is down. For the sake of completeness, a "disabled" mode has been added, which acts as if the property was not defined. Document "hiz-output" as a non-required property. Signed-off-by: Javier Carrasco --- Documentation/devicetree/bindings/rtc/nxp,pcf85363.yaml | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85363.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf85363.yaml index 52aa3e2091e9..4b27a9154191 100644 --- a/Documentation/devicetree/bindings/rtc/nxp,pcf85363.yaml +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85363.yaml @@ -36,6 +36,19 @@ properties: enum: [6000, 7000, 12500] default: 7000 + hiz-output: + description: + Use enabled if the output should stay in high-impedance. This + mode will mask the output as an interrupt source. + Use sleep if the otuput should be only active in sleep mode. + This mode is compatible with any other output configuration. + The disabled value acts as if the property was not defined. + enum: + - enabled + - sleep + - disabled + default: disabled + start-year: true wakeup-source: true @@ -56,5 +69,6 @@ examples: reg = <0x51>; #clock-cells = <0>; quartz-load-femtofarads = <12500>; + hiz-output = "sleep"; }; };