diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2012-03-04 16:57:31 +0100 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2012-05-08 16:33:57 -0700 |
| commit | 4f04be62af95119d258b8035f498100e43c8c527 (patch) | |
| tree | 86778fee3006ca06791bcbf65ea437a1e13fded7 /drivers/watchdog/orion_wdt.c | |
| parent | 452503ebc7cc4cce5b9e52cf2f03255365a53234 (diff) | |
| download | lwn-4f04be62af95119d258b8035f498100e43c8c527.tar.gz lwn-4f04be62af95119d258b8035f498100e43c8c527.zip | |
ARM: Orion: WDT: Add clk/clkdev support
Remove tclk from platform data. This makes the platform data
structure empty, so remove it.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/watchdog/orion_wdt.c')
| -rw-r--r-- | drivers/watchdog/orion_wdt.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 788aa158e78c..0f5736949c61 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -24,8 +24,8 @@ #include <linux/uaccess.h> #include <linux/io.h> #include <linux/spinlock.h> +#include <linux/clk.h> #include <mach/bridge-regs.h> -#include <plat/orion_wdt.h> /* * Watchdog timer block registers. @@ -41,6 +41,7 @@ static bool nowayout = WATCHDOG_NOWAYOUT; static int heartbeat = -1; /* module parameter (seconds) */ static unsigned int wdt_max_duration; /* (seconds) */ +static struct clk *clk; static unsigned int wdt_tclk; static void __iomem *wdt_reg; static unsigned long wdt_status; @@ -237,16 +238,16 @@ static struct miscdevice orion_wdt_miscdev = { static int __devinit orion_wdt_probe(struct platform_device *pdev) { - struct orion_wdt_platform_data *pdata = pdev->dev.platform_data; struct resource *res; int ret; - if (pdata) { - wdt_tclk = pdata->tclk; - } else { - pr_err("misses platform data\n"); + clk = clk_get(&pdev->dev, NULL); + if (IS_ERR(clk)) { + printk(KERN_ERR "Orion Watchdog missing clock\n"); return -ENODEV; } + clk_prepare_enable(clk); + wdt_tclk = clk_get_rate(clk); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -282,6 +283,9 @@ static int __devexit orion_wdt_remove(struct platform_device *pdev) if (!ret) orion_wdt_miscdev.parent = NULL; + clk_disable_unprepare(clk); + clk_put(clk); + return ret; } |