diff options
Diffstat (limited to 'target/linux/gemini/patches-4.14/0019-watchdog-ftwdt010-Make-interrupt-optional.patch')
| -rw-r--r-- | target/linux/gemini/patches-4.14/0019-watchdog-ftwdt010-Make-interrupt-optional.patch | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/target/linux/gemini/patches-4.14/0019-watchdog-ftwdt010-Make-interrupt-optional.patch b/target/linux/gemini/patches-4.14/0019-watchdog-ftwdt010-Make-interrupt-optional.patch deleted file mode 100644 index 23c4ab5c0d..0000000000 --- a/target/linux/gemini/patches-4.14/0019-watchdog-ftwdt010-Make-interrupt-optional.patch +++ /dev/null @@ -1,93 +0,0 @@ -From 4347a0b0699989b889857c9d4ccfbce339859f13 Mon Sep 17 00:00:00 2001 -From: Linus Walleij <linus.walleij@linaro.org> -Date: Mon, 16 Oct 2017 22:54:25 +0200 -Subject: [PATCH 19/31] watchdog: ftwdt010: Make interrupt optional - -The Moxart does not appear to be using the interrupt from the -watchdog timer, maybe it's not even routed, so as to support -more architectures with this driver, make the interrupt -optional. - -While we are at it: actually enable the use of the interrupt -if present by setting the right bit in the control register -and define the missing control register bits. - -Signed-off-by: Linus Walleij <linus.walleij@linaro.org> -Reviewed-by: Guenter Roeck <linux@roeck-us.net> -Signed-off-by: Guenter Roeck <linux@roeck-us.net> -Signed-off-by: Wim Van Sebroeck <wim@iguana.be> ---- - drivers/watchdog/ftwdt010_wdt.c | 30 ++++++++++++++++++------------ - 1 file changed, 18 insertions(+), 12 deletions(-) - ---- a/drivers/watchdog/ftwdt010_wdt.c -+++ b/drivers/watchdog/ftwdt010_wdt.c -@@ -30,6 +30,8 @@ - #define WDRESTART_MAGIC 0x5AB9 - - #define WDCR_CLOCK_5MHZ BIT(4) -+#define WDCR_WDEXT BIT(3) -+#define WDCR_WDINTR BIT(2) - #define WDCR_SYS_RST BIT(1) - #define WDCR_ENABLE BIT(0) - -@@ -39,6 +41,7 @@ struct ftwdt010_wdt { - struct watchdog_device wdd; - struct device *dev; - void __iomem *base; -+ bool has_irq; - }; - - static inline -@@ -50,14 +53,17 @@ struct ftwdt010_wdt *to_ftwdt010_wdt(str - static int ftwdt010_wdt_start(struct watchdog_device *wdd) - { - struct ftwdt010_wdt *gwdt = to_ftwdt010_wdt(wdd); -+ u32 enable; - - writel(wdd->timeout * WDT_CLOCK, gwdt->base + FTWDT010_WDLOAD); - writel(WDRESTART_MAGIC, gwdt->base + FTWDT010_WDRESTART); - /* set clock before enabling */ -- writel(WDCR_CLOCK_5MHZ | WDCR_SYS_RST, -- gwdt->base + FTWDT010_WDCR); -- writel(WDCR_CLOCK_5MHZ | WDCR_SYS_RST | WDCR_ENABLE, -- gwdt->base + FTWDT010_WDCR); -+ enable = WDCR_CLOCK_5MHZ | WDCR_SYS_RST; -+ writel(enable, gwdt->base + FTWDT010_WDCR); -+ if (gwdt->has_irq) -+ enable |= WDCR_WDINTR; -+ enable |= WDCR_ENABLE; -+ writel(enable, gwdt->base + FTWDT010_WDCR); - - return 0; - } -@@ -133,10 +139,6 @@ static int ftwdt010_wdt_probe(struct pla - if (IS_ERR(gwdt->base)) - return PTR_ERR(gwdt->base); - -- irq = platform_get_irq(pdev, 0); -- if (!irq) -- return -EINVAL; -- - gwdt->dev = dev; - gwdt->wdd.info = &ftwdt010_wdt_info; - gwdt->wdd.ops = &ftwdt010_wdt_ops; -@@ -158,10 +160,14 @@ static int ftwdt010_wdt_probe(struct pla - writel(reg, gwdt->base + FTWDT010_WDCR); - } - -- ret = devm_request_irq(dev, irq, ftwdt010_wdt_interrupt, 0, -- "watchdog bark", gwdt); -- if (ret) -- return ret; -+ irq = platform_get_irq(pdev, 0); -+ if (irq) { -+ ret = devm_request_irq(dev, irq, ftwdt010_wdt_interrupt, 0, -+ "watchdog bark", gwdt); -+ if (ret) -+ return ret; -+ gwdt->has_irq = true; -+ } - - ret = devm_watchdog_register_device(dev, &gwdt->wdd); - if (ret) { |