From 19c7c0d81a9b1fe7342d0208b629b5e085e4f3ae Mon Sep 17 00:00:00 2001 From: "Kumar, Anil" Date: Wed, 6 Feb 2013 09:30:04 +0530 Subject: [PATCH] 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 Signed-off-by: Sekhar Nori --- arch/arm/mach-davinci/devices-da8xx.c | 12 ++++++++++-- arch/arm/mach-davinci/include/mach/da8xx.h | 1 - 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index 2d5502d84a22..cc6916dc4629 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -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) diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index 700d311c6854..ef9f70ea30a0 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -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[]; -- 2.34.1