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author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2019-06-05 08:04:00 +0300 |
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committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2019-07-08 20:39:44 +0300 |
commit | b836005b4f95cccdc1f53849a31cac2dc375f4b7 (patch) | |
tree | 38382bf14eb80c8fb4de63faf13e7a6fc1ff5bb0 /drivers/watchdog/imx_sc_wdt.c | |
parent | 1a4aaf9f11f9937e93fe9907e6c2320a10a9f269 (diff) | |
download | linux-b836005b4f95cccdc1f53849a31cac2dc375f4b7.tar.xz |
watchdog: renesas_wdt: Add a few cycles delay
According to the hardware manual of R-Car Gen2 and Gen3,
software should wait a few RLCK cycles as following:
- Delay 2 cycles before setting watchdog counter.
- Delay 3 cycles before disabling module clock.
So, this patch adds such delays.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog/imx_sc_wdt.c')
0 files changed, 0 insertions, 0 deletions