diff options
| author | Jubeom Kim <jubeomk@nvidia.com> | 2011-03-17 23:03:07 +0900 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:41:50 -0800 |
| commit | 7b62b15d270e0327cc9ea49f527e197e3f56a713 (patch) | |
| tree | 5ab9a1e76059ab49c729e1d6719d7da713d82004 /drivers/i2c | |
| parent | bfe944869202473e65cefd0a5e5a70f8e0c9f7a4 (diff) | |
i2c-tegra: Using suspend_noirq()/resume_noirq() for suspend/resume.
I2C driver needs to be suspended late and resumed early than other drivers.
So, I2C driver uses the suspend_noirq/resume_noirq callbacks of struct dev_pm_ops
for early/late power management system.
Original-Change-Id: Ie2f453b96fb9ab9b16cafec79644fe5d3b982dd3
Reviewed-on: http://git-master/r/23347
Tested-by: Jubeom Kim <jubeomk@nvidia.com>
Reviewed-by: Jinyoung Park <jinyoungp@nvidia.com>
Reviewed-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-by: Mayuresh Kulkarni <mkulkarni@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Rebase-Id: R1126fb1683ac4f9138763e7981a0e36769f14738
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 04b9add189b9..4bc4f0174c28 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -846,8 +846,9 @@ static int tegra_i2c_remove(struct platform_device *pdev) } #ifdef CONFIG_PM -static int tegra_i2c_suspend(struct platform_device *pdev, pm_message_t state) +static int tegra_i2c_suspend_noirq(struct device *dev) { + struct platform_device *pdev = to_platform_device(dev); struct tegra_i2c_dev *i2c_dev = platform_get_drvdata(pdev); rt_mutex_lock(&i2c_dev->dev_lock); @@ -857,8 +858,9 @@ static int tegra_i2c_suspend(struct platform_device *pdev, pm_message_t state) return 0; } -static int tegra_i2c_resume(struct platform_device *pdev) +static int tegra_i2c_resume_noirq(struct device *dev) { + struct platform_device *pdev = to_platform_device(dev); struct tegra_i2c_dev *i2c_dev = platform_get_drvdata(pdev); int ret; @@ -877,6 +879,14 @@ static int tegra_i2c_resume(struct platform_device *pdev) return 0; } + +static const struct dev_pm_ops tegra_i2c_dev_pm_ops = { + .suspend_noirq = tegra_i2c_suspend_noirq, + .resume_noirq = tegra_i2c_resume_noirq, +}; +#define TEGRA_I2C_DEV_PM_OPS (&tegra_i2c_dev_pm_ops) +#else +#define TEGRA_I2C_DEV_PM_OPS NULL #endif #if defined(CONFIG_OF) @@ -893,14 +903,11 @@ MODULE_DEVICE_TABLE(of, tegra_i2c_of_match); static struct platform_driver tegra_i2c_driver = { .probe = tegra_i2c_probe, .remove = tegra_i2c_remove, -#ifdef CONFIG_PM - .suspend = tegra_i2c_suspend, - .resume = tegra_i2c_resume, -#endif .driver = { .name = "tegra-i2c", .owner = THIS_MODULE, .of_match_table = tegra_i2c_of_match, + .pm = TEGRA_I2C_DEV_PM_OPS, }, }; |