diff options
Diffstat (limited to 'drivers/watchdog/bd9576_wdt.c')
| -rw-r--r-- | drivers/watchdog/bd9576_wdt.c | 59 |
1 files changed, 30 insertions, 29 deletions
diff --git a/drivers/watchdog/bd9576_wdt.c b/drivers/watchdog/bd9576_wdt.c index 0b6999f3b6e8..f00ea1b4e40b 100644 --- a/drivers/watchdog/bd9576_wdt.c +++ b/drivers/watchdog/bd9576_wdt.c @@ -9,8 +9,8 @@ #include <linux/gpio/consumer.h> #include <linux/mfd/rohm-bd957x.h> #include <linux/module.h> -#include <linux/of.h> #include <linux/platform_device.h> +#include <linux/property.h> #include <linux/regmap.h> #include <linux/watchdog.h> @@ -29,7 +29,6 @@ struct bd9576_wdt_priv { struct gpio_desc *gpiod_en; struct device *dev; struct regmap *regmap; - bool always_running; struct watchdog_device wdd; }; @@ -62,10 +61,7 @@ static int bd9576_wdt_stop(struct watchdog_device *wdd) { struct bd9576_wdt_priv *priv = watchdog_get_drvdata(wdd); - if (!priv->always_running) - bd9576_wdt_disable(priv); - else - set_bit(WDOG_HW_RUNNING, &wdd->status); + bd9576_wdt_disable(priv); return 0; } @@ -202,10 +198,10 @@ static int bd957x_set_wdt_mode(struct bd9576_wdt_priv *priv, int hw_margin, static int bd9576_wdt_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *np = dev->parent->of_node; struct bd9576_wdt_priv *priv; u32 hw_margin[2]; u32 hw_margin_max = BD957X_WDT_DEFAULT_MARGIN, hw_margin_min = 0; + int count; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); @@ -221,41 +217,49 @@ static int bd9576_wdt_probe(struct platform_device *pdev) return -ENODEV; } - priv->gpiod_en = devm_gpiod_get_from_of_node(dev, dev->parent->of_node, - "rohm,watchdog-enable-gpios", - 0, GPIOD_OUT_LOW, - "watchdog-enable"); + priv->gpiod_en = devm_fwnode_gpiod_get(dev, dev_fwnode(dev->parent), + "rohm,watchdog-enable", + GPIOD_OUT_LOW, + "watchdog-enable"); if (IS_ERR(priv->gpiod_en)) return dev_err_probe(dev, PTR_ERR(priv->gpiod_en), "getting watchdog-enable GPIO failed\n"); - priv->gpiod_ping = devm_gpiod_get_from_of_node(dev, dev->parent->of_node, - "rohm,watchdog-ping-gpios", - 0, GPIOD_OUT_LOW, - "watchdog-ping"); + priv->gpiod_ping = devm_fwnode_gpiod_get(dev, dev_fwnode(dev->parent), + "rohm,watchdog-ping", + GPIOD_OUT_LOW, + "watchdog-ping"); if (IS_ERR(priv->gpiod_ping)) return dev_err_probe(dev, PTR_ERR(priv->gpiod_ping), "getting watchdog-ping GPIO failed\n"); - ret = of_property_read_variable_u32_array(np, "rohm,hw-timeout-ms", - &hw_margin[0], 1, 2); - if (ret < 0 && ret != -EINVAL) - return ret; + count = device_property_count_u32(dev->parent, "rohm,hw-timeout-ms"); + if (count < 0 && count != -EINVAL) + return count; + + if (count > 0) { + if (count > ARRAY_SIZE(hw_margin)) + return -EINVAL; + + ret = device_property_read_u32_array(dev->parent, + "rohm,hw-timeout-ms", + hw_margin, count); + if (ret < 0) + return ret; - if (ret == 1) - hw_margin_max = hw_margin[0]; + if (count == 1) + hw_margin_max = hw_margin[0]; - if (ret == 2) { - hw_margin_max = hw_margin[1]; - hw_margin_min = hw_margin[0]; + if (count == 2) { + hw_margin_max = hw_margin[1]; + hw_margin_min = hw_margin[0]; + } } ret = bd957x_set_wdt_mode(priv, hw_margin_max, hw_margin_min); if (ret) return ret; - priv->always_running = of_property_read_bool(np, "always-running"); - watchdog_set_drvdata(&priv->wdd, priv); priv->wdd.info = &bd957x_wdt_ident; @@ -270,9 +274,6 @@ static int bd9576_wdt_probe(struct platform_device *pdev) watchdog_stop_on_reboot(&priv->wdd); - if (priv->always_running) - bd9576_wdt_start(&priv->wdd); - return devm_watchdog_register_device(dev, &priv->wdd); } |
