powerpc: sysdev/gpio: use new line value setter callbacks

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250502-gpiochip-set-rv-powerpc-v2-1-488e43e325bf@linaro.org

diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index 47db732981a8b6c8c46f6aa713d240c7f0d7f51f..e22fc638dbc7c58574ec29d1556dfcd4348fa02e 100644 (file)
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -138,7 +138,7 @@ static void __cpm2_gpio32_set(struct of_mm_gpio_chip *mm_gc, u32 pin_mask,
        out_be32(&iop->dat, cpm2_gc->cpdata);
 }
 
-static void cpm2_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
+static int cpm2_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
 {
        struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
        struct cpm2_gpio32_chip *cpm2_gc = gpiochip_get_data(gc);
@@ -150,6 +150,8 @@ static void cpm2_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
        __cpm2_gpio32_set(mm_gc, pin_mask, value);
 
        spin_unlock_irqrestore(&cpm2_gc->lock, flags);
+
+       return 0;
 }
 
 static int cpm2_gpio32_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
@@ -208,7 +210,7 @@ int cpm2_gpiochip_add32(struct device *dev)
        gc->direction_input = cpm2_gpio32_dir_in;
        gc->direction_output = cpm2_gpio32_dir_out;
        gc->get = cpm2_gpio32_get;
-       gc->set = cpm2_gpio32_set;
+       gc->set_rv = cpm2_gpio32_set;
        gc->parent = dev;
        gc->owner = THIS_MODULE;