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author | Ingo Molnar <mingo@elte.hu> | 2008-12-23 18:23:23 +0300 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-12-23 18:23:23 +0300 |
commit | 1ccedb7cdba6886939dd8b4c8f965a826f696e56 (patch) | |
tree | 0f5fc519a68faca5318c296315c9b6c502907056 /drivers/i2c/busses/i2c-s3c2410.c | |
parent | a98f8fd24fb24fcb9a359553e64dd6aac5cf4279 (diff) | |
parent | 929096fe9ff1f4b3645cf3919527ab47e8d5e17c (diff) | |
download | linux-1ccedb7cdba6886939dd8b4c8f965a826f696e56.tar.xz |
Merge commit 'v2.6.28-rc9' into x86/apic
Diffstat (limited to 'drivers/i2c/busses/i2c-s3c2410.c')
-rw-r--r-- | drivers/i2c/busses/i2c-s3c2410.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 1fac4e233133..b7434d24904e 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c @@ -56,6 +56,7 @@ enum s3c24xx_i2c_state { struct s3c24xx_i2c { spinlock_t lock; wait_queue_head_t wait; + unsigned int suspended:1; struct i2c_msg *msg; unsigned int msg_num; @@ -507,7 +508,7 @@ static int s3c24xx_i2c_doxfer(struct s3c24xx_i2c *i2c, struct i2c_msg *msgs, int unsigned long timeout; int ret; - if (!(readl(i2c->regs + S3C2410_IICCON) & S3C2410_IICCON_IRQEN)) + if (i2c->suspended) return -EIO; ret = s3c24xx_i2c_set_master(i2c); @@ -986,17 +987,26 @@ static int s3c24xx_i2c_remove(struct platform_device *pdev) } #ifdef CONFIG_PM +static int s3c24xx_i2c_suspend_late(struct platform_device *dev, + pm_message_t msg) +{ + struct s3c24xx_i2c *i2c = platform_get_drvdata(dev); + i2c->suspended = 1; + return 0; +} + static int s3c24xx_i2c_resume(struct platform_device *dev) { struct s3c24xx_i2c *i2c = platform_get_drvdata(dev); - if (i2c != NULL) - s3c24xx_i2c_init(i2c); + i2c->suspended = 0; + s3c24xx_i2c_init(i2c); return 0; } #else +#define s3c24xx_i2c_suspend_late NULL #define s3c24xx_i2c_resume NULL #endif @@ -1005,6 +1015,7 @@ static int s3c24xx_i2c_resume(struct platform_device *dev) static struct platform_driver s3c2410_i2c_driver = { .probe = s3c24xx_i2c_probe, .remove = s3c24xx_i2c_remove, + .suspend_late = s3c24xx_i2c_suspend_late, .resume = s3c24xx_i2c_resume, .driver = { .owner = THIS_MODULE, @@ -1015,6 +1026,7 @@ static struct platform_driver s3c2410_i2c_driver = { static struct platform_driver s3c2440_i2c_driver = { .probe = s3c24xx_i2c_probe, .remove = s3c24xx_i2c_remove, + .suspend_late = s3c24xx_i2c_suspend_late, .resume = s3c24xx_i2c_resume, .driver = { .owner = THIS_MODULE, |