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Merge git://www.linux-watchdog.org/linux-watchdog 

Pull watchdog fixes from Wim Van Sebroeck:
 - a null pointer dereference fix for omap_wdt
 - some clock related fixes for pnx4008
 - an underflow fix in wdt_set_timeout() for w83977f_wdt
 - restart fix for tegra wdt
 - Kconfig change to support Freescale Layerscape platforms
 - fix for stopping the mtk_wdt watchdog

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: mtk_wdt: Use MODE_KEY when stopping the watchdog
  watchdog: Add support for Freescale Layerscape platforms
  watchdog: tegra: Stop watchdog first if restarting
  watchdog: w83977f_wdt: underflow in wdt_set_timeout()
  watchdog: pnx4008: make global wdt_clk static
  watchdog: pnx4008: fix warnings caused by enabling unprepared clock
  watchdog: omap_wdt: fix null pointer dereference
This commit is contained in:
Linus Torvalds 2015-11-27 15:53:23 -08:00
parent 80e0c505b2 5da2bf1ac8
commit d0bc387dbe
6 changed files with 11 additions and 8 deletions
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2
drivers/watchdog/Kconfig
View File

@ -446,7 +446,7 @@ config MAX63XX_WATCHDOG
config IMX2_WDT
tristate "IMX2+ Watchdog"
depends on ARCH_MXC
depends on ARCH_MXC || ARCH_LAYERSCAPE
select REGMAP_MMIO
select WATCHDOG_CORE
help

1
drivers/watchdog/mtk_wdt.c
View File

@ -123,6 +123,7 @@ static int mtk_wdt_stop(struct watchdog_device *wdt_dev)
reg = readl(wdt_base + WDT_MODE);
reg &= ~WDT_MODE_EN;
reg |= WDT_MODE_KEY;
iowrite32(reg, wdt_base + WDT_MODE);
return 0;

2
drivers/watchdog/omap_wdt.c
View File

@ -205,7 +205,7 @@ static int omap_wdt_set_timeout(struct watchdog_device *wdog,
static unsigned int omap_wdt_get_timeleft(struct watchdog_device *wdog)
{
struct omap_wdt_dev *wdev = watchdog_get_drvdata(wdog);
struct omap_wdt_dev *wdev = to_omap_wdt_dev(wdog);
void __iomem *base = wdev->base;
u32 value;

8
drivers/watchdog/pnx4008_wdt.c
View File

@ -80,7 +80,7 @@ static unsigned int heartbeat = DEFAULT_HEARTBEAT;
static DEFINE_SPINLOCK(io_lock);
static void __iomem *wdt_base;
struct clk *wdt_clk;
static struct clk *wdt_clk;
static int pnx4008_wdt_start(struct watchdog_device *wdd)
{
@ -161,7 +161,7 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
if (IS_ERR(wdt_clk))
return PTR_ERR(wdt_clk);
ret = clk_enable(wdt_clk);
ret = clk_prepare_enable(wdt_clk);
if (ret)
return ret;
@ -184,7 +184,7 @@ static int pnx4008_wdt_probe(struct platform_device *pdev)
return 0;
disable_clk:
clk_disable(wdt_clk);
clk_disable_unprepare(wdt_clk);
return ret;
}
@ -192,7 +192,7 @@ static int pnx4008_wdt_remove(struct platform_device *pdev)
{
watchdog_unregister_device(&pnx4008_wdd);
clk_disable(wdt_clk);
clk_disable_unprepare(wdt_clk);
return 0;
}

4
drivers/watchdog/tegra_wdt.c
View File

@ -140,8 +140,10 @@ static int tegra_wdt_set_timeout(struct watchdog_device *wdd,
{
wdd->timeout = timeout;
if (watchdog_active(wdd))
if (watchdog_active(wdd)) {
tegra_wdt_stop(wdd);
return tegra_wdt_start(wdd);
}
return 0;
}

2
drivers/watchdog/w83977f_wdt.c
View File

@ -224,7 +224,7 @@ static int wdt_keepalive(void)
static int wdt_set_timeout(int t)
{
int tmrval;
unsigned int tmrval;
/*
* Convert seconds to watchdog counter time units, rounding up.