A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

watchdog: imgpdc: Set timeout before starting watchdog

Browse source 
Set up the watchdog for the specified timeout before attempting to start it.

Signed-off-by: Naidu Tellapati <[email protected]>
Signed-off-by: Andrew Bresticker <[email protected]>
Reviewed-by: Ezequiel Garcia <[email protected]>
Tested-by: Ezequiel Garcia <[email protected]>
Cc: James Hogan <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Wim Van Sebroeck <[email protected]>
This commit is contained in:
Andrew Bresticker 2015-04-03 10:05:21 -07:00 • committed by Wim Van Sebroeck
commit 8aa453a533
1 changed files with 13 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

18
drivers/watchdog/imgpdc_wdt.c
View file

@ -84,18 +84,24 @@ static int pdc_wdt_stop(struct watchdog_device *wdt_dev)
return 0;
}
static void __pdc_wdt_set_timeout(struct pdc_wdt_dev *wdt)
{
unsigned long clk_rate = clk_get_rate(wdt->wdt_clk);
unsigned int val;
val = readl(wdt->base + PDC_WDT_CONFIG) & ~PDC_WDT_CONFIG_DELAY_MASK;
val |= order_base_2(wdt->wdt_dev.timeout * clk_rate) - 1;
writel(val, wdt->base + PDC_WDT_CONFIG);
}
static int pdc_wdt_set_timeout(struct watchdog_device *wdt_dev,
unsigned int new_timeout)
{
unsigned int val;
struct pdc_wdt_dev *wdt = watchdog_get_drvdata(wdt_dev);
unsigned long clk_rate = clk_get_rate(wdt->wdt_clk);
wdt->wdt_dev.timeout = new_timeout;
val = readl(wdt->base + PDC_WDT_CONFIG) & ~PDC_WDT_CONFIG_DELAY_MASK;
val |= order_base_2(new_timeout * clk_rate) - 1;
writel(val, wdt->base + PDC_WDT_CONFIG);
__pdc_wdt_set_timeout(wdt);
return 0;
}
@ -106,6 +112,8 @@ static int pdc_wdt_start(struct watchdog_device *wdt_dev)
unsigned int val;
struct pdc_wdt_dev *wdt = watchdog_get_drvdata(wdt_dev);
__pdc_wdt_set_timeout(wdt);
val = readl(wdt->base + PDC_WDT_CONFIG);
val |= PDC_WDT_CONFIG_ENABLE;
writel(val, wdt->base + PDC_WDT_CONFIG);