Commit ed07a76b authored by Rob Herring (Arm)'s avatar Rob Herring (Arm)
Browse files

drm/simpledrm: Use of_reserved_mem_region_to_resource() for "memory-region" 



Use the newly added of_reserved_mem_region_to_resource() function to
handle "memory-region" properties.

Reviewed-by: default avatarJavier Martinez Canillas <javierm@redhat.com>
Acked-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250703183447.2073902-1-robh@kernel.org


Signed-off-by: default avatarRob Herring (Arm) <robh@kernel.org>
parent 6b12afac

drivers/gpu/drm/sysfb/simpledrm.c

+5 −10
Original line number Diff line number Diff line
@@ -4,7 +4,7 @@ 
#include <linux/clk.h>

#include <linux/of_clk.h>

#include <linux/minmax.h>

#include <linux/of_address.h>

#include <linux/of_reserved_mem.h>

#include <linux/platform_data/simplefb.h>

#include <linux/platform_device.h>

#include <linux/pm_domain.h>
@@ -179,22 +179,17 @@ simplefb_get_format_of(struct drm_device *dev, struct device_node *of_node) 
static struct resource *

simplefb_get_memory_of(struct drm_device *dev, struct device_node *of_node)

{

	struct device_node *np;

	struct resource *res;

	struct resource r, *res;

	int err;



	np = of_parse_phandle(of_node, "memory-region", 0);

	if (!np)

	err = of_reserved_mem_region_to_resource(of_node, 0, &r);

	if (err)

		return NULL;



	res = devm_kzalloc(dev->dev, sizeof(*res), GFP_KERNEL);

	res = devm_kmemdup(dev->dev, &r, sizeof(r), GFP_KERNEL);

	if (!res)

		return ERR_PTR(-ENOMEM);



	err = of_address_to_resource(np, 0, res);

	if (err)

		return ERR_PTR(err);



	if (of_property_present(of_node, "reg"))

		drm_warn(dev, "preferring \"memory-region\" over \"reg\" property\n");