i2c: use dev_get_drvdata() to get private data in suspend/resume hooks

Several drivers call to_platform_device() to get platform_device
and pass it to platform_get_drvdata().  In platform_get_drvdata(),
the platform_device is converted back to struct device again.

Use dev_get_drvdata() to avoid platform_device/device dance.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> (for DesignWare only)
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-bcm-iproc.c

@@ -510,8 +510,7 @@ static int bcm_iproc_i2c_remove(struct platform_device *pdev)
 
 static int bcm_iproc_i2c_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct bcm_iproc_i2c_dev *iproc_i2c = platform_get_drvdata(pdev);
+	struct bcm_iproc_i2c_dev *iproc_i2c = dev_get_drvdata(dev);
 
 	/* make sure there's no pending interrupt when we go into suspend */
 	writel(0, iproc_i2c->base + IE_OFFSET);
@@ -526,8 +525,7 @@ static int bcm_iproc_i2c_suspend(struct device *dev)
 
 static int bcm_iproc_i2c_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct bcm_iproc_i2c_dev *iproc_i2c = platform_get_drvdata(pdev);
+	struct bcm_iproc_i2c_dev *iproc_i2c = dev_get_drvdata(dev);
 	int ret;
 	u32 val;
 

drivers/i2c/busses/i2c-cadence.c

@@ -826,8 +826,7 @@ static int cdns_i2c_clk_notifier_cb(struct notifier_block *nb, unsigned long
  */
 static int __maybe_unused cdns_i2c_runtime_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct cdns_i2c *xi2c = platform_get_drvdata(pdev);
+	struct cdns_i2c *xi2c = dev_get_drvdata(dev);
 
 	clk_disable(xi2c->clk);
 
@@ -844,8 +843,7 @@ static int __maybe_unused cdns_i2c_runtime_suspend(struct device *dev)
  */
 static int __maybe_unused cdns_i2c_runtime_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct cdns_i2c *xi2c = platform_get_drvdata(pdev);
+	struct cdns_i2c *xi2c = dev_get_drvdata(dev);
 	int ret;
 
 	ret = clk_enable(xi2c->clk);

drivers/i2c/busses/i2c-davinci.c

@@ -876,8 +876,7 @@ static int davinci_i2c_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int davinci_i2c_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct davinci_i2c_dev *i2c_dev = platform_get_drvdata(pdev);
+	struct davinci_i2c_dev *i2c_dev = dev_get_drvdata(dev);
 
 	/* put I2C into reset */
 	davinci_i2c_reset_ctrl(i2c_dev, 0);
@@ -888,8 +887,7 @@ static int davinci_i2c_suspend(struct device *dev)
 
 static int davinci_i2c_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct davinci_i2c_dev *i2c_dev = platform_get_drvdata(pdev);
+	struct davinci_i2c_dev *i2c_dev = dev_get_drvdata(dev);
 
 	clk_prepare_enable(i2c_dev->clk);
 	/* take I2C out of reset */

drivers/i2c/busses/i2c-designware-platdrv.c

@@ -428,8 +428,7 @@ static void dw_i2c_plat_complete(struct device *dev)
 #ifdef CONFIG_PM
 static int dw_i2c_plat_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
+	struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
 
 	i_dev->disable(i_dev);
 	i2c_dw_plat_prepare_clk(i_dev, false);
@@ -439,8 +438,7 @@ static int dw_i2c_plat_suspend(struct device *dev)
 
 static int dw_i2c_plat_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct dw_i2c_dev *i_dev = platform_get_drvdata(pdev);
+	struct dw_i2c_dev *i_dev = dev_get_drvdata(dev);
 
 	i2c_dw_plat_prepare_clk(i_dev, true);
 	i_dev->init(i_dev);

drivers/i2c/busses/i2c-exynos5.c

@@ -803,8 +803,7 @@ static int exynos5_i2c_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int exynos5_i2c_suspend_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
+	struct exynos5_i2c *i2c = dev_get_drvdata(dev);
 
 	i2c->suspended = 1;
 
@@ -815,8 +814,7 @@ static int exynos5_i2c_suspend_noirq(struct device *dev)
 
 static int exynos5_i2c_resume_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
+	struct exynos5_i2c *i2c = dev_get_drvdata(dev);
 	int ret = 0;
 
 	ret = clk_prepare_enable(i2c->clk);

drivers/i2c/busses/i2c-hix5hd2.c

@@ -505,8 +505,7 @@ static int hix5hd2_i2c_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int hix5hd2_i2c_runtime_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct hix5hd2_i2c_priv *priv = platform_get_drvdata(pdev);
+	struct hix5hd2_i2c_priv *priv = dev_get_drvdata(dev);
 
 	clk_disable_unprepare(priv->clk);
 
@@ -515,8 +514,7 @@ static int hix5hd2_i2c_runtime_suspend(struct device *dev)
 
 static int hix5hd2_i2c_runtime_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct hix5hd2_i2c_priv *priv = platform_get_drvdata(pdev);
+	struct hix5hd2_i2c_priv *priv = dev_get_drvdata(dev);
 
 	clk_prepare_enable(priv->clk);
 	hix5hd2_i2c_init(priv);

drivers/i2c/busses/i2c-lpc2k.c

@@ -457,8 +457,7 @@ static int i2c_lpc2k_remove(struct platform_device *dev)
 #ifdef CONFIG_PM
 static int i2c_lpc2k_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct lpc2k_i2c *i2c = platform_get_drvdata(pdev);
+	struct lpc2k_i2c *i2c = dev_get_drvdata(dev);
 
 	clk_disable(i2c->clk);
 
@@ -467,8 +466,7 @@ static int i2c_lpc2k_suspend(struct device *dev)
 
 static int i2c_lpc2k_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct lpc2k_i2c *i2c = platform_get_drvdata(pdev);
+	struct lpc2k_i2c *i2c = dev_get_drvdata(dev);
 
 	clk_enable(i2c->clk);
 	i2c_lpc2k_reset(i2c);

drivers/i2c/busses/i2c-mv64xxx.c

@@ -975,8 +975,7 @@ mv64xxx_i2c_remove(struct platform_device *dev)
 #ifdef CONFIG_PM
 static int mv64xxx_i2c_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct mv64xxx_i2c_data *drv_data = platform_get_drvdata(pdev);
+	struct mv64xxx_i2c_data *drv_data = dev_get_drvdata(dev);
 
 	mv64xxx_i2c_hw_init(drv_data);
 

drivers/i2c/busses/i2c-pxa.c

@@ -1346,8 +1346,7 @@ static int i2c_pxa_remove(struct platform_device *dev)
 #ifdef CONFIG_PM
 static int i2c_pxa_suspend_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct pxa_i2c *i2c = platform_get_drvdata(pdev);
+	struct pxa_i2c *i2c = dev_get_drvdata(dev);
 
 	clk_disable(i2c->clk);
 
@@ -1356,8 +1355,7 @@ static int i2c_pxa_suspend_noirq(struct device *dev)
 
 static int i2c_pxa_resume_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct pxa_i2c *i2c = platform_get_drvdata(pdev);
+	struct pxa_i2c *i2c = dev_get_drvdata(dev);
 
 	clk_enable(i2c->clk);
 	i2c_pxa_reset(i2c);

drivers/i2c/busses/i2c-s3c2410.c

@@ -1246,8 +1246,7 @@ static int s3c24xx_i2c_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int s3c24xx_i2c_suspend_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s3c24xx_i2c *i2c = platform_get_drvdata(pdev);
+	struct s3c24xx_i2c *i2c = dev_get_drvdata(dev);
 
 	i2c->suspended = 1;
 
@@ -1259,8 +1258,7 @@ static int s3c24xx_i2c_suspend_noirq(struct device *dev)
 
 static int s3c24xx_i2c_resume_noirq(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct s3c24xx_i2c *i2c = platform_get_drvdata(pdev);
+	struct s3c24xx_i2c *i2c = dev_get_drvdata(dev);
 	int ret;
 
 	if (!IS_ERR(i2c->sysreg))

drivers/i2c/busses/i2c-sirf.c

@@ -421,8 +421,7 @@ static int i2c_sirfsoc_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int i2c_sirfsoc_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct i2c_adapter *adapter = platform_get_drvdata(pdev);
+	struct i2c_adapter *adapter = dev_get_drvdata(dev);
 	struct sirfsoc_i2c *siic = adapter->algo_data;
 
 	clk_enable(siic->clk);
@@ -434,8 +433,7 @@ static int i2c_sirfsoc_suspend(struct device *dev)
 
 static int i2c_sirfsoc_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct i2c_adapter *adapter = platform_get_drvdata(pdev);
+	struct i2c_adapter *adapter = dev_get_drvdata(dev);
 	struct sirfsoc_i2c *siic = adapter->algo_data;
 
 	clk_enable(siic->clk);

drivers/i2c/busses/i2c-st.c

@@ -745,8 +745,7 @@ static int st_i2c_xfer(struct i2c_adapter *i2c_adap,
 #ifdef CONFIG_PM_SLEEP
 static int st_i2c_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct st_i2c_dev *i2c_dev = platform_get_drvdata(pdev);
+	struct st_i2c_dev *i2c_dev = dev_get_drvdata(dev);
 
 	if (i2c_dev->busy)
 		return -EBUSY;

drivers/i2c/busses/i2c-xiic.c

@@ -853,8 +853,7 @@ MODULE_DEVICE_TABLE(of, xiic_of_match);
 
 static int __maybe_unused cdns_i2c_runtime_suspend(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct xiic_i2c *i2c = platform_get_drvdata(pdev);
+	struct xiic_i2c *i2c = dev_get_drvdata(dev);
 
 	clk_disable(i2c->clk);
 
@@ -863,8 +862,7 @@ static int __maybe_unused cdns_i2c_runtime_suspend(struct device *dev)
 
 static int __maybe_unused cdns_i2c_runtime_resume(struct device *dev)
 {
-	struct platform_device *pdev = to_platform_device(dev);
-	struct xiic_i2c *i2c = platform_get_drvdata(pdev);
+	struct xiic_i2c *i2c = dev_get_drvdata(dev);
 	int ret;
 
 	ret = clk_enable(i2c->clk);