diff options
| -rw-r--r-- | Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt | 10 | ||||
| -rw-r--r-- | arch/arm/boot/dts/twl4030.dtsi | 4 | ||||
| -rw-r--r-- | drivers/watchdog/da9055_wdt.c | 17 | ||||
| -rw-r--r-- | drivers/watchdog/omap_wdt.c | 1 | ||||
| -rw-r--r-- | drivers/watchdog/twl4030_wdt.c | 11 |
5 files changed, 29 insertions, 14 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt b/Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt new file mode 100644 index 0000000..80a3719 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/twl4030-wdt.txt @@ -0,0 +1,10 @@ +Device tree bindings for twl4030-wdt driver (TWL4030 watchdog) + +Required properties: + compatible = "ti,twl4030-wdt"; + +Example: + +watchdog { + compatible = "ti,twl4030-wdt"; +}; diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi index 63411b0..ed0bc95 100644 --- a/arch/arm/boot/dts/twl4030.dtsi +++ b/arch/arm/boot/dts/twl4030.dtsi @@ -19,6 +19,10 @@ interrupts = <11>; }; + watchdog { + compatible = "ti,twl4030-wdt"; + }; + vdac: regulator-vdac { compatible = "ti,twl4030-vdac"; regulator-min-microvolt = <1800000>; diff --git a/drivers/watchdog/da9055_wdt.c b/drivers/watchdog/da9055_wdt.c index 709ea1a..f5ad105 100644 --- a/drivers/watchdog/da9055_wdt.c +++ b/drivers/watchdog/da9055_wdt.c @@ -72,20 +72,21 @@ static int da9055_wdt_set_timeout(struct watchdog_device *wdt_dev, DA9055_TWDSCALE_MASK, da9055_wdt_maps[i].reg_val << DA9055_TWDSCALE_SHIFT); - if (ret < 0) + if (ret < 0) { dev_err(da9055->dev, "Failed to update timescale bit, %d\n", ret); + return ret; + } wdt_dev->timeout = timeout; - return ret; + return 0; } static int da9055_wdt_ping(struct watchdog_device *wdt_dev) { struct da9055_wdt_data *driver_data = watchdog_get_drvdata(wdt_dev); struct da9055 *da9055 = driver_data->da9055; - int ret; /* * We have a minimum time for watchdog window called TWDMIN. A write @@ -94,18 +95,12 @@ static int da9055_wdt_ping(struct watchdog_device *wdt_dev) mdelay(DA9055_TWDMIN); /* Reset the watchdog timer */ - ret = da9055_reg_update(da9055, DA9055_REG_CONTROL_E, - DA9055_WATCHDOG_MASK, 1); - - return ret; + return da9055_reg_update(da9055, DA9055_REG_CONTROL_E, + DA9055_WATCHDOG_MASK, 1); } static void da9055_wdt_release_resources(struct kref *r) { - struct da9055_wdt_data *driver_data = - container_of(r, struct da9055_wdt_data, kref); - - kfree(driver_data); } static void da9055_wdt_ref(struct watchdog_device *wdt_dev) diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c index 34ed61e..b0e541d 100644 --- a/drivers/watchdog/omap_wdt.c +++ b/drivers/watchdog/omap_wdt.c @@ -296,7 +296,6 @@ static int omap_wdt_remove(struct platform_device *pdev) { struct watchdog_device *wdog = platform_get_drvdata(pdev); struct omap_wdt_dev *wdev = watchdog_get_drvdata(wdog); - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); pm_runtime_disable(wdev->dev); watchdog_unregister_device(wdog); diff --git a/drivers/watchdog/twl4030_wdt.c b/drivers/watchdog/twl4030_wdt.c index 81918cf..0f03106 100644 --- a/drivers/watchdog/twl4030_wdt.c +++ b/drivers/watchdog/twl4030_wdt.c @@ -131,14 +131,21 @@ static int twl4030_wdt_resume(struct platform_device *pdev) #define twl4030_wdt_resume NULL #endif +static const struct of_device_id twl_wdt_of_match[] = { + { .compatible = "ti,twl4030-wdt", }, + { }, +}; +MODULE_DEVICE_TABLE(of, twl_wdt_of_match); + static struct platform_driver twl4030_wdt_driver = { .probe = twl4030_wdt_probe, .remove = twl4030_wdt_remove, .suspend = twl4030_wdt_suspend, .resume = twl4030_wdt_resume, .driver = { - .owner = THIS_MODULE, - .name = "twl4030_wdt", + .owner = THIS_MODULE, + .name = "twl4030_wdt", + .of_match_table = twl_wdt_of_match, }, }; |