diff options
Diffstat (limited to 'target/linux/generic/pending-5.10/111-watchdog-max63xx_wdt-Add-support-for-specifying-WDI-.patch')
| -rw-r--r-- | target/linux/generic/pending-5.10/111-watchdog-max63xx_wdt-Add-support-for-specifying-WDI-.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/target/linux/generic/pending-5.10/111-watchdog-max63xx_wdt-Add-support-for-specifying-WDI-.patch b/target/linux/generic/pending-5.10/111-watchdog-max63xx_wdt-Add-support-for-specifying-WDI-.patch deleted file mode 100644 index d2e134a132..0000000000 --- a/target/linux/generic/pending-5.10/111-watchdog-max63xx_wdt-Add-support-for-specifying-WDI-.patch +++ /dev/null @@ -1,75 +0,0 @@ -From bd1b9f66d5134e518419f4c4dacf1884c1616983 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org> -Date: Thu, 28 Apr 2022 11:13:23 +0200 -Subject: [PATCH] watchdog: max63xx_wdt: Add support for specifying WDI logic - via GPIO -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -On some boards is WDI logic of max6370 chip connected via GPIO. -So extend max63xx_wdt driver to allow specifying WDI logic via GPIO. - -Signed-off-by: Pali Rohár <pali@kernel.org> ---- - drivers/watchdog/max63xx_wdt.c | 24 ++++++++++++++++++++++++ - 1 file changed, 24 insertions(+) - ---- a/drivers/watchdog/max63xx_wdt.c -+++ b/drivers/watchdog/max63xx_wdt.c -@@ -26,6 +26,7 @@ - #include <linux/spinlock.h> - #include <linux/io.h> - #include <linux/slab.h> -+#include <linux/gpio/consumer.h> - - #define DEFAULT_HEARTBEAT 60 - #define MAX_HEARTBEAT 60 -@@ -52,6 +53,9 @@ struct max63xx_wdt { - void __iomem *base; - spinlock_t lock; - -+ /* GPIOs */ -+ struct gpio_desc *gpio_wdi; -+ - /* WDI and WSET bits write access routines */ - void (*ping)(struct max63xx_wdt *wdt); - void (*set)(struct max63xx_wdt *wdt, u8 set); -@@ -157,6 +161,17 @@ static const struct watchdog_info max63x - .identity = "max63xx Watchdog", - }; - -+static void max63xx_gpio_ping(struct max63xx_wdt *wdt) -+{ -+ spin_lock(&wdt->lock); -+ -+ gpiod_set_value(wdt->gpio_wdi, 1); -+ udelay(1); -+ gpiod_set_value(wdt->gpio_wdi, 0); -+ -+ spin_unlock(&wdt->lock); -+} -+ - static void max63xx_mmap_ping(struct max63xx_wdt *wdt) - { - u8 val; -@@ -221,10 +236,19 @@ static int max63xx_wdt_probe(struct plat - return -EINVAL; - } - -+ wdt->gpio_wdi = devm_gpiod_get(dev, NULL, GPIOD_FLAGS_BIT_DIR_OUT); -+ if (IS_ERR(wdt->gpio_wdi) && PTR_ERR(wdt->gpio_wdi) != -ENOENT) -+ return dev_err_probe(dev, PTR_ERR(wdt->gpio_wdi), -+ "unable to request gpio: %ld\n", -+ PTR_ERR(wdt->gpio_wdi)); -+ - err = max63xx_mmap_init(pdev, wdt); - if (err) - return err; - -+ if (!IS_ERR(wdt->gpio_wdi)) -+ wdt->ping = max63xx_gpio_ping; -+ - platform_set_drvdata(pdev, &wdt->wdd); - watchdog_set_drvdata(&wdt->wdd, wdt); - |