diff mbox series

[U-Boot,v3,1/2] watchdog: tangier: Replace unused constant with a comment

Message ID 20190621102808.37856-1-andriy.shevchenko@linux.intel.com
State Accepted
Commit 8b295a20262802a7ae9704bafa5d0cafb3b4744f
Delegated to: Bin Meng
Headers show
Series [U-Boot,v3,1/2] watchdog: tangier: Replace unused constant with a comment | expand

Commit Message

Andy Shevchenko June 21, 2019, 10:28 a.m. UTC
The default timeout value had been left in order to leave some traces
about default setup of watchdog done by firmware.

For better understanding and compiler burden, replace it with a comment.

Suggested-by: Stefan Roese <sr@denx.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/watchdog/tangier_wdt.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Bin Meng June 22, 2019, 2:23 p.m. UTC | #1
On Fri, Jun 21, 2019 at 6:28 PM Andy Shevchenko
<andriy.shevchenko@linux.intel.com> wrote:
>
> The default timeout value had been left in order to leave some traces
> about default setup of watchdog done by firmware.
>
> For better understanding and compiler burden, replace it with a comment.
>
> Suggested-by: Stefan Roese <sr@denx.de>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/watchdog/tangier_wdt.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
>

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Bin Meng June 22, 2019, 2:29 p.m. UTC | #2
On Sat, Jun 22, 2019 at 10:23 PM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> On Fri, Jun 21, 2019 at 6:28 PM Andy Shevchenko
> <andriy.shevchenko@linux.intel.com> wrote:
> >
> > The default timeout value had been left in order to leave some traces
> > about default setup of watchdog done by firmware.
> >
> > For better understanding and compiler burden, replace it with a comment.
> >
> > Suggested-by: Stefan Roese <sr@denx.de>
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> > ---
> >  drivers/watchdog/tangier_wdt.c | 7 ++++++-
> >  1 file changed, 6 insertions(+), 1 deletion(-)
> >
>
> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

applied to u-boot-x86, thanks!
diff mbox series

Patch

diff --git a/drivers/watchdog/tangier_wdt.c b/drivers/watchdog/tangier_wdt.c
index be4a8f467a..b2f40ef057 100644
--- a/drivers/watchdog/tangier_wdt.c
+++ b/drivers/watchdog/tangier_wdt.c
@@ -10,7 +10,12 @@ 
 #define WDT_PRETIMEOUT		15
 #define WDT_TIMEOUT_MIN		(1 + WDT_PRETIMEOUT)
 #define WDT_TIMEOUT_MAX		170
-#define WDT_DEFAULT_TIMEOUT	90
+
+/*
+ * Note, firmware chooses 90 seconds as a default timeout for watchdog on
+ * Intel Tangier SoC. It means that without handling it in the running code
+ * the reboot will happen.
+ */
 
 #ifndef CONFIG_WATCHDOG_TIMEOUT_MSECS
 #define WATCHDOG_HEARTBEAT 60000