powerpc/sysdev: change CPM GPIO to platform_device
Since commit 9427ecbed46cc ("gpio: Rework of_gpiochip_set_names()
to use device property accessors"), gpio chips have to have a
parent, otherwise devprop_gpiochip_set_names() prematurely exists
with message "GPIO chip parent is NULL" and doesn't proceed
'gpio-line-names' DT property.
This patch wraps the CPM GPIO into a platform driver to allow
assignment of the parent device.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <oss@buserror.net>
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index 51bf749..b745081 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -190,8 +190,9 @@ static int cpm2_gpio32_dir_in(struct gpio_chip *gc, unsigned int gpio)
return 0;
}
-int cpm2_gpiochip_add32(struct device_node *np)
+int cpm2_gpiochip_add32(struct device *dev)
{
+ struct device_node *np = dev->of_node;
struct cpm2_gpio32_chip *cpm2_gc;
struct of_mm_gpio_chip *mm_gc;
struct gpio_chip *gc;
@@ -211,6 +212,8 @@ int cpm2_gpiochip_add32(struct device_node *np)
gc->direction_output = cpm2_gpio32_dir_out;
gc->get = cpm2_gpio32_get;
gc->set = cpm2_gpio32_set;
+ gc->parent = dev;
+ gc->owner = THIS_MODULE;
return of_mm_gpiochip_add_data(np, mm_gc, cpm2_gc);
}