[PATCH v4 01/15] gpio: dwapb: Use modern PM macros

[Jisheng Zhang <jszhang@kernel.org>]

Use the modern PM macros for the suspend and resume functions to be
automatically dropped by the compiler when CONFIG_PM or
CONFIG_PM_SLEEP are disabled, without having to use #ifdef guards.

This has the advantage of always compiling these functions in,
independently of any Kconfig option. Thanks to that, bugs and other
regressions are subsequently easier to catch.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-dwapb.c | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index b42ff46d292b..4986c465c9a8 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -79,7 +79,6 @@ struct dwapb_platform_data {
 	unsigned int nports;
 };
 
-#ifdef CONFIG_PM_SLEEP
 /* Store GPIO context across system-wide suspend/resume transitions */
 struct dwapb_context {
 	u32 data;
@@ -92,7 +91,6 @@ struct dwapb_context {
 	u32 int_deb;
 	u32 wake_en;
 };
-#endif
 
 struct dwapb_gpio_port_irqchip {
 	unsigned int		nr_irqs;
@@ -103,9 +101,7 @@ struct dwapb_gpio_port {
 	struct gpio_generic_chip chip;
 	struct dwapb_gpio_port_irqchip *pirq;
 	struct dwapb_gpio	*gpio;
-#ifdef CONFIG_PM_SLEEP
 	struct dwapb_context	*ctx;
-#endif
 	unsigned int		idx;
 };
 
@@ -363,7 +359,6 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int dwapb_irq_set_wake(struct irq_data *d, unsigned int enable)
 {
 	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
@@ -378,9 +373,6 @@ static int dwapb_irq_set_wake(struct irq_data *d, unsigned int enable)
 
 	return 0;
 }
-#else
-#define dwapb_irq_set_wake	NULL
-#endif
 
 static const struct irq_chip dwapb_irq_chip = {
 	.name		= DWAPB_DRIVER_NAME,
@@ -390,7 +382,7 @@ static const struct irq_chip dwapb_irq_chip = {
 	.irq_set_type	= dwapb_irq_set_type,
 	.irq_enable	= dwapb_irq_enable,
 	.irq_disable	= dwapb_irq_disable,
-	.irq_set_wake	= dwapb_irq_set_wake,
+	.irq_set_wake	= pm_sleep_ptr(dwapb_irq_set_wake),
 	.flags		= IRQCHIP_IMMUTABLE,
 	GPIOCHIP_IRQ_RESOURCE_HELPERS,
 };
@@ -759,7 +751,6 @@ static int dwapb_gpio_probe(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int dwapb_gpio_suspend(struct device *dev)
 {
 	struct dwapb_gpio *gpio = dev_get_drvdata(dev);
@@ -844,15 +835,14 @@ static int dwapb_gpio_resume(struct device *dev)
 
 	return 0;
 }
-#endif
 
-static SIMPLE_DEV_PM_OPS(dwapb_gpio_pm_ops, dwapb_gpio_suspend,
-			 dwapb_gpio_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(dwapb_gpio_pm_ops,
+				dwapb_gpio_suspend, dwapb_gpio_resume);
 
 static struct platform_driver dwapb_gpio_driver = {
 	.driver		= {
 		.name	= DWAPB_DRIVER_NAME,
-		.pm	= &dwapb_gpio_pm_ops,
+		.pm	= pm_sleep_ptr(&dwapb_gpio_pm_ops),
 		.of_match_table = dwapb_of_match,
 		.acpi_match_table = dwapb_acpi_match,
 	},
-- 
2.51.0