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Subject[PATCH 2/7] i2c-bfin-twi: Use struct dev_pm_ops for power management
Date
From: Rafael J. Wysocki <rjw@sisk.pl>

Make the Blackfin On-Chip Two Wire Interface driver define its PM
callbacks through a struct dev_pm_ops object rather than by using
legacy PM hooks in struct platform_driver.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
drivers/i2c/busses/i2c-bfin-twi.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)

Index: linux/drivers/i2c/busses/i2c-bfin-twi.c
===================================================================
--- linux.orig/drivers/i2c/busses/i2c-bfin-twi.c
+++ linux/drivers/i2c/busses/i2c-bfin-twi.c
@@ -611,9 +611,9 @@ static struct i2c_algorithm bfin_twi_alg
.functionality = bfin_twi_functionality,
};

-static int i2c_bfin_twi_suspend(struct platform_device *pdev, pm_message_t state)
+static int i2c_bfin_twi_suspend(struct device *dev)
{
- struct bfin_twi_iface *iface = platform_get_drvdata(pdev);
+ struct bfin_twi_iface *iface = dev_get_drvdata(dev);

iface->saved_clkdiv = read_CLKDIV(iface);
iface->saved_control = read_CONTROL(iface);
@@ -626,14 +626,14 @@ static int i2c_bfin_twi_suspend(struct p
return 0;
}

-static int i2c_bfin_twi_resume(struct platform_device *pdev)
+static int i2c_bfin_twi_resume(struct device *dev)
{
- struct bfin_twi_iface *iface = platform_get_drvdata(pdev);
+ struct bfin_twi_iface *iface = dev_get_drvdata(dev);

int rc = request_irq(iface->irq, bfin_twi_interrupt_entry,
- 0, pdev->name, iface);
+ 0, to_platform_device(dev)->name, iface);
if (rc) {
- dev_err(&pdev->dev, "Can't get IRQ %d !\n", iface->irq);
+ dev_err(dev, "Can't get IRQ %d !\n", iface->irq);
return -ENODEV;
}

@@ -646,6 +646,9 @@ static int i2c_bfin_twi_resume(struct pl
return 0;
}

+static SIMPLE_DEV_PM_OPS(i2c_bfin_twi_pm,
+ i2c_bfin_twi_suspend, i2c_bfin_twi_resume);
+
static int i2c_bfin_twi_probe(struct platform_device *pdev)
{
struct bfin_twi_iface *iface;
@@ -770,11 +773,10 @@ static int i2c_bfin_twi_remove(struct pl
static struct platform_driver i2c_bfin_twi_driver = {
.probe = i2c_bfin_twi_probe,
.remove = i2c_bfin_twi_remove,
- .suspend = i2c_bfin_twi_suspend,
- .resume = i2c_bfin_twi_resume,
.driver = {
.name = "i2c-bfin-twi",
.owner = THIS_MODULE,
+ .pm = &i2c_bfin_twi_pm,
},
};



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