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watchdog: orion: Add per-compatible watchdog start implementation 

To handle differences between SoCs this commit adds per-compatible
string start() function for the watchdog kick-off. This is preparation
work and makes no functionality changes to the current driver.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Tested-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Ezequiel Garcia 2014-02-10 20:00:30 -03:00 committed by Jason Cooper
parent 1924227bcd
commit 490d8e3cbf
1 changed files with 11 additions and 1 deletions
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12
drivers/watchdog/orion_wdt.c
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@ -50,6 +50,7 @@ struct orion_watchdog_data {
int rstout_enable_bit;
int (*clock_init)(struct platform_device *,
struct orion_watchdog *);
int (*start)(struct watchdog_device *);
};
struct orion_watchdog {
@ -86,7 +87,7 @@ static int orion_wdt_ping(struct watchdog_device *wdt_dev)
return 0;
}
static int orion_wdt_start(struct watchdog_device *wdt_dev)
static int orion_start(struct watchdog_device *wdt_dev)
{
struct orion_watchdog *dev = watchdog_get_drvdata(wdt_dev);
@ -105,6 +106,14 @@ static int orion_wdt_start(struct watchdog_device *wdt_dev)
return 0;
}
static int orion_wdt_start(struct watchdog_device *wdt_dev)
{
struct orion_watchdog *dev = watchdog_get_drvdata(wdt_dev);
/* There are some per-SoC quirks to handle */
return dev->data->start(wdt_dev);
}
static int orion_wdt_stop(struct watchdog_device *wdt_dev)
{
struct orion_watchdog *dev = watchdog_get_drvdata(wdt_dev);
@ -193,6 +202,7 @@ static const struct orion_watchdog_data orion_data = {
.wdt_enable_bit = BIT(4),
.wdt_counter_offset = 0x24,
.clock_init = orion_wdt_clock_init,
.start = orion_start,
};
static const struct of_device_id orion_wdt_of_match_table[] = {