diff options
| author | Rob Herring (Arm) <robh@kernel.org> | 2025-07-03 13:35:13 -0500 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2025-07-27 19:56:51 +0200 |
| commit | c80de50c192f135a78f6c924818b2f5cd6ca7524 (patch) | |
| tree | edcc5521df84b88a00c66d7476a6fe9afe152c82 | |
| parent | 523b84dc7ccea9c4d79126d6ed1cf9033cf83b05 (diff) | |
fbdev: simplefb: 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.
The error handling is a bit different. "memory-region" is optional, so
failed lookup is not an error. But then an error in
of_address_to_resource() is treated as an error. However, that
distinction is not really important. Either the region is available
and usable or it is not. So now, it is just
of_reserved_mem_region_to_resource() which is checked for an error.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | drivers/video/fbdev/simplefb.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c index be95fcddce4c..1893815dc67f 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -21,9 +21,9 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/of.h> -#include <linux/of_address.h> #include <linux/of_clk.h> #include <linux/of_platform.h> +#include <linux/of_reserved_mem.h> #include <linux/parser.h> #include <linux/pm_domain.h> #include <linux/regulator/consumer.h> @@ -134,7 +134,7 @@ struct simplefb_params { static int simplefb_parse_dt(struct platform_device *pdev, struct simplefb_params *params) { - struct device_node *np = pdev->dev.of_node, *mem; + struct device_node *np = pdev->dev.of_node; int ret; const char *format; int i; @@ -174,19 +174,10 @@ static int simplefb_parse_dt(struct platform_device *pdev, return -EINVAL; } - mem = of_parse_phandle(np, "memory-region", 0); - if (mem) { - ret = of_address_to_resource(mem, 0, ¶ms->memory); - if (ret < 0) { - dev_err(&pdev->dev, "failed to parse memory-region\n"); - of_node_put(mem); - return ret; - } - + ret = of_reserved_mem_region_to_resource(np, 0, ¶ms->memory); + if (!ret) { if (of_property_present(np, "reg")) dev_warn(&pdev->dev, "preferring \"memory-region\" over \"reg\" property\n"); - - of_node_put(mem); } else { memset(¶ms->memory, 0, sizeof(params->memory)); } |