gpio: pch: Build context save/restore only for PM

The pch_gpio_save_reg_conf() and pch_gpio_restore_reg_conf() functions
are only used in pch_gpio_suspend() and pch_gpio_resume(), respectively.
Since the latter are only built if PM is enabled, make the former build
under the same conditions.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index e0ac549dccb54c43261d71df59da196144502d67..2d9a950ca2d46d1b65f26e7c85ac6861b1892ae0 100644 (file)
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -171,6 +171,7 @@ static int pch_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
        return 0;
 }
 
+#ifdef CONFIG_PM
 /*
  * Save register configuration and disable interrupts.
  */
@@ -206,6 +207,7 @@ static void pch_gpio_restore_reg_conf(struct pch_gpio *chip)
                iowrite32(chip->pch_gpio_reg.gpio_use_sel_reg,
                          &chip->reg->gpio_use_sel);
 }
+#endif
 
 static int pch_gpio_to_irq(struct gpio_chip *gpio, unsigned offset)
 {