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Commit 6ddc4b07 authored by Ben Dooks's avatar Ben Dooks Committed by Russell King
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[ARM] 4984/1: S3C24XX: Do not assert nRSTOUT on BAST over suspend. 



Change GPA21 to output over reset so that nRSTOUT is not
asserted whilst suspended.

Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent c63fc13f

arch/arm/mach-s3c2410/mach-bast.c

+34 −0
Original line number Diff line number Diff line
@@ -16,6 +16,7 @@ 
#include <linux/list.h>

#include <linux/timer.h>

#include <linux/init.h>

#include <linux/sysdev.h>

#include <linux/serial_core.h>

#include <linux/platform_device.h>

#include <linux/dm9000.h>
@@ -236,6 +237,36 @@ static struct platform_device bast_device_nor = { 


/* NAND Flash on BAST board */



#ifdef CONFIG_PM

static int bast_pm_suspend(struct sys_device *sd, pm_message_t state)

{

	/* ensure that an nRESET is not generated on resume. */

	s3c2410_gpio_setpin(S3C2410_GPA21, 1);

	s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_OUT);



	return 0;

}



static int bast_pm_resume(struct sys_device *sd)

{

	s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_nRSTOUT);

	return 0;

}



#else

#define bast_pm_suspend NULL

#define bast_pm_resume NULL

#endif



static struct sysdev_class bast_pm_sysclass = {

	set_kset_name("mach-bast"),

	.suspend	= bast_pm_suspend,

	.resume		= bast_pm_resume,

};



static struct sys_device bast_pm_sysdev = {

	.cls		= &bast_pm_sysclass,

};



static int smartmedia_map[] = { 0 };

static int chip0_map[] = { 1 };
@@ -586,6 +617,9 @@ static void __init bast_map_io(void) 


static void __init bast_init(void)

{

	sysdev_class_register(&bast_pm_sysclass);

	sysdev_register(&bast_pm_sysdev);



	s3c24xx_fb_set_platdata(&bast_fb_info);

	platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));

}