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ARM: Orion: WDT: Add clk/clkdev support

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Remove tclk from platform data.  This makes the platform data
structure empty, so remove it.

Signed-off-by: Andrew Lunn <[email protected]>
Tested-by: Jamie Lentin <[email protected]>
Signed-off-by: Mike Turquette <[email protected]>
This commit is contained in:
Andrew Lunn 2012-03-04 16:57:31 +01:00 • committed by Mike Turquette
commit 4f04be62af
6 changed files with 17 additions and 36 deletions
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16
drivers/watchdog/orion_wdt.c
View file

@ -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;
}