[PATCH v1 2/2] dt-bindings: rtc: Add optional status property
From: Rahul Tanwar <hidden>
Date: 2019-08-22 07:44:27
Also in:
linux-rtc, lkml
Subsystem:
open firmware and flattened device tree bindings, real time clock (rtc) subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Alexandre Belloni, Linus Torvalds
Some products may not support MC146818 RTC CMOS device. Introduce a optional 'status' standard property for RTC-CMOS to indicate if the MC146818 RTC device is available (status="okay") or not (status="disabled") Signed-off-by: Rahul Tanwar <redacted> --- Documentation/devicetree/bindings/rtc/rtc-cmos.txt | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/rtc/rtc-cmos.txt b/Documentation/devicetree/bindings/rtc/rtc-cmos.txt
index b94b35f3600b..fea4fe0ed4b9 100644
--- a/Documentation/devicetree/bindings/rtc/rtc-cmos.txt
+++ b/Documentation/devicetree/bindings/rtc/rtc-cmos.txt@@ -11,6 +11,9 @@ Optional properties: called "Register B". - freq-reg : Contains the initial value of the frequency register also called "Regsiter A". + - status: indicates the operational status of the device. + Value must be either "disabled" or "okay". + "Register A" and "B" are usually initialized by the firmware (BIOS for instance). If this is not done, it can be performed by the driver.
@@ -24,4 +27,5 @@ ISA Example: ctrl-reg = <2>; freq-reg = <0x26>; reg = <1 0x70 2>; + status = "okay"; };
--
2.11.0