i2c: at91: remove #define CONFIG_PM

Remove #define CONFIG_PM and use __maybe_unused for PM functions and
pm_ptr() for PM ops.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

diff --git a/drivers/i2c/busses/i2c-at91-core.c b/drivers/i2c/busses/i2c-at91-core.c
index e14edd2361085f263fc52fb87bec963ac150be4f..9f3c3e8e8011cedc97e30a08196d389272b1b2b1 100644 (file)
--- a/drivers/i2c/busses/i2c-at91-core.c
+++ b/drivers/i2c/busses/i2c-at91-core.c
@@ -286,9 +286,7 @@ static int at91_twi_remove(struct platform_device *pdev)
        return 0;
 }
 
-#ifdef CONFIG_PM
-
-static int at91_twi_runtime_suspend(struct device *dev)
+static int __maybe_unused at91_twi_runtime_suspend(struct device *dev)
 {
        struct at91_twi_dev *twi_dev = dev_get_drvdata(dev);
 
@@ -299,7 +297,7 @@ static int at91_twi_runtime_suspend(struct device *dev)
        return 0;
 }
 
-static int at91_twi_runtime_resume(struct device *dev)
+static int __maybe_unused at91_twi_runtime_resume(struct device *dev)
 {
        struct at91_twi_dev *twi_dev = dev_get_drvdata(dev);
 
@@ -308,7 +306,7 @@ static int at91_twi_runtime_resume(struct device *dev)
        return clk_prepare_enable(twi_dev->clk);
 }
 
-static int at91_twi_suspend_noirq(struct device *dev)
+static int __maybe_unused at91_twi_suspend_noirq(struct device *dev)
 {
        if (!pm_runtime_status_suspended(dev))
                at91_twi_runtime_suspend(dev);
@@ -316,7 +314,7 @@ static int at91_twi_suspend_noirq(struct device *dev)
        return 0;
 }
 
-static int at91_twi_resume_noirq(struct device *dev)
+static int __maybe_unused at91_twi_resume_noirq(struct device *dev)
 {
        struct at91_twi_dev *twi_dev = dev_get_drvdata(dev);
        int ret;
@@ -342,11 +340,6 @@ static const struct dev_pm_ops at91_twi_pm = {
        .runtime_resume         = at91_twi_runtime_resume,
 };
 
-#define at91_twi_pm_ops (&at91_twi_pm)
-#else
-#define at91_twi_pm_ops NULL
-#endif
-
 static struct platform_driver at91_twi_driver = {
        .probe          = at91_twi_probe,
        .remove         = at91_twi_remove,
@@ -354,7 +347,7 @@ static struct platform_driver at91_twi_driver = {
        .driver         = {
                .name   = "at91_i2c",
                .of_match_table = of_match_ptr(atmel_twi_dt_ids),
-               .pm     = at91_twi_pm_ops,
+               .pm     = pm_ptr(&at91_twi_pm),
        },
 };