On 21/04/21 18:37, Guenter Roeck wrote:
> On Wed, Apr 21, 2021 at 06:26:20PM +0200, Francesco Zanella wrote:
>> Documentation for new device tree property "start-at-boot".
>>
>> Signed-off-by: Francesco Zanella <francesco.zanella@xxxxxxxxx>
>> ---
>> Documentation/devicetree/bindings/watchdog/gpio-wdt.txt | 7 +++++++
>> 1 file changed, 7 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt b/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt
>> index 198794963786..cdaf7f0602e8 100644
>> --- a/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt
>> +++ b/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt
>> @@ -17,6 +17,13 @@ Optional Properties:
>> - always-running: If the watchdog timer cannot be disabled, add this flag to
>> have the driver keep toggling the signal without a client. It will only cease
>> to toggle the signal when the device is open and the timeout elapsed.
>> +- start-at-boot: Start pinging hw watchdog at probe, in order to take advantage
>> + of kernel configs:
>> + - WATCHDOG_HANDLE_BOOT_ENABLED: Avoid possible reboot if hw watchdog was been
>> + enabled before the kernel (by uboot for example) and userspace doesn't take
>> + control of /dev/watchdog in time;
>> + - WATCHDOG_OPEN_TIMEOUT: Reboot if userspace doesn't take control of
>> + /dev/watchdog within the timeout.
>
> You are not supposed to refer to Linux kernel details in devicetree
> bindings documents.
>
> Guenter
>
>>
>> Example:
>> watchdog: watchdog {
>> --
>> 2.17.1
>>
OK, I'm sorry. I will resend the patch series without kernel configs
references in documents.
Francesco
