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ARM: davinci: da850 DT: add support for machine reboot 

Update the da8xx_restart() function to support machine reboot
when booting using DT. Have the function search for the watchdog
platform device instead of always using "da8xx_wdt_device" which
is never registered in DT case.

While at it, also make da8xx_wdt_device static since there is no need
for it to be globally visible.

Tested machine reboot with both DT and non-DT boot on DA850 EVM.

Signed-off-by: Kumar, Anil <anilkumar.v@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This commit is contained in:
Kumar, Anil 2013-02-06 09:30:04 +05:30 committed by Sekhar Nori
parent 518f97dbb8
commit 19c7c0d81a
2 changed files with 10 additions and 3 deletions
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12
arch/arm/mach-davinci/devices-da8xx.c
View File

@ -359,7 +359,7 @@ static struct resource da8xx_watchdog_resources[] = {
},
};
struct platform_device da8xx_wdt_device = {
static struct platform_device da8xx_wdt_device = {
.name = "watchdog",
.id = -1,
.num_resources = ARRAY_SIZE(da8xx_watchdog_resources),
@ -368,7 +368,15 @@ struct platform_device da8xx_wdt_device = {
void da8xx_restart(char mode, const char *cmd)
{
davinci_watchdog_reset(&da8xx_wdt_device);
struct device *dev;
dev = bus_find_device_by_name(&platform_bus_type, NULL, "watchdog");
if (!dev) {
pr_err("%s: failed to find watchdog device\n", __func__);
return;
}
davinci_watchdog_reset(to_platform_device(dev));
}
int __init da8xx_register_watchdog(void)

1
arch/arm/mach-davinci/include/mach/da8xx.h
View File

@ -112,7 +112,6 @@ extern struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata;
extern struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata;
extern struct davinci_spi_platform_data da8xx_spi_pdata[];
extern struct platform_device da8xx_wdt_device;
extern const short da830_emif25_pins[];
extern const short da830_spi0_pins[];