In order to support other SoCs, it's needed to have a different stop() implementation for each SoC. This commit adds no functionality, and it consists of preparation work.
Reviewed-by: Guenter Roeck <[email protected]> Signed-off-by: Ezequiel Garcia <[email protected]> --- drivers/watchdog/orion_wdt.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 9c25012..1cb50d6 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -59,6 +59,7 @@ struct orion_watchdog_data { int (*clock_init)(struct platform_device *, struct orion_watchdog *); int (*start)(struct watchdog_device *); + int (*stop)(struct watchdog_device *); }; struct orion_watchdog { @@ -193,7 +194,7 @@ static int orion_wdt_start(struct watchdog_device *wdt_dev) return dev->data->start(wdt_dev); } -static int orion_wdt_stop(struct watchdog_device *wdt_dev) +static int orion_stop(struct watchdog_device *wdt_dev) { struct orion_watchdog *dev = watchdog_get_drvdata(wdt_dev); @@ -206,6 +207,29 @@ static int orion_wdt_stop(struct watchdog_device *wdt_dev) return 0; } +static int armada370_stop(struct watchdog_device *wdt_dev) +{ + struct orion_watchdog *dev = watchdog_get_drvdata(wdt_dev); + u32 reg; + + /* Disable reset on watchdog */ + reg = readl(dev->rstout); + reg &= ~dev->data->rstout_enable_bit; + writel(reg, dev->rstout); + + /* Disable watchdog timer */ + atomic_io_modify(dev->reg + TIMER_CTRL, dev->data->wdt_enable_bit, 0); + + return 0; +} + +static int orion_wdt_stop(struct watchdog_device *wdt_dev) +{ + struct orion_watchdog *dev = watchdog_get_drvdata(wdt_dev); + + return dev->data->stop(wdt_dev); +} + static int orion_wdt_enabled(struct orion_watchdog *dev) { bool enabled, running; @@ -278,6 +302,7 @@ static const struct orion_watchdog_data orion_data = { .wdt_counter_offset = 0x24, .clock_init = orion_wdt_clock_init, .start = orion_start, + .stop = orion_stop, }; static const struct orion_watchdog_data armada370_data = { @@ -286,6 +311,7 @@ static const struct orion_watchdog_data armada370_data = { .wdt_counter_offset = 0x34, .clock_init = armada370_wdt_clock_init, .start = armada370_start, + .stop = armada370_stop, }; static const struct orion_watchdog_data armadaxp_data = { @@ -294,6 +320,7 @@ static const struct orion_watchdog_data armadaxp_data = { .wdt_counter_offset = 0x34, .clock_init = armadaxp_wdt_clock_init, .start = armada370_start, + .stop = armada370_stop, }; static const struct of_device_id orion_wdt_of_match_table[] = { -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
