linux-kernel - [PATCH v1 2/2] dt-bindings: rtc: Add optional status property

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 22 Aug 2019 15:44:04 +0800
From:   Rahul Tanwar <rahul.tanwar@...ux.intel.com>
To:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
        tony.luck@...el.com, x86@...nel.org, a.zummo@...ertech.it,
        alexandre.belloni@...tlin.com, robh+dt@...nel.org,
        mark.rutland@....com
Cc:     linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        andriy.shevchenko@...el.com, alan@...ux.intel.com,
        linux-kernel@...r.kernel.org, qi-ming.wu@...el.com,
        cheol.yong.kim@...el.com, rahul.tanwar@...el.com,
        Rahul Tanwar <rahul.tanwar@...ux.intel.com>
Subject: [PATCH v1 2/2] dt-bindings: rtc: Add optional status property

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 <rahul.tanwar@...ux.intel.com>
---
 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