[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: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -16,6 +16,7 @@
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/sysdev.h>
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#include <linux/serial_core.h>
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#include <linux/platform_device.h>
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#include <linux/dm9000.h>
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@ -236,6 +237,36 @@ static struct platform_device bast_device_nor = {
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/* NAND Flash on BAST board */
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#ifdef CONFIG_PM
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static int bast_pm_suspend(struct sys_device *sd, pm_message_t state)
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{
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/* ensure that an nRESET is not generated on resume. */
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s3c2410_gpio_setpin(S3C2410_GPA21, 1);
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s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_OUT);
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return 0;
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}
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static int bast_pm_resume(struct sys_device *sd)
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{
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s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_nRSTOUT);
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return 0;
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}
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#else
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#define bast_pm_suspend NULL
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#define bast_pm_resume NULL
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#endif
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static struct sysdev_class bast_pm_sysclass = {
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set_kset_name("mach-bast"),
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.suspend = bast_pm_suspend,
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.resume = bast_pm_resume,
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};
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static struct sys_device bast_pm_sysdev = {
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.cls = &bast_pm_sysclass,
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};
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static int smartmedia_map[] = { 0 };
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static int chip0_map[] = { 1 };
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@ -586,6 +617,9 @@ static void __init bast_map_io(void)
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static void __init bast_init(void)
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{
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sysdev_class_register(&bast_pm_sysclass);
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sysdev_register(&bast_pm_sysdev);
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s3c24xx_fb_set_platdata(&bast_fb_info);
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platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
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}
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