Re: [PATCH] drm: Use of_property_read_bool() for boolean properties

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Hi Rob,

Thank you for the patch.

On Fri, Mar 10, 2023 at 08:47:05AM -0600, Rob Herring wrote:
> It is preferred to use typed property access functions (i.e.
> of_property_read_<type> functions) rather than low-level
> of_get_property/of_find_property functions for reading properties.
> Convert reading boolean properties to to of_property_read_bool().

s/to to/to/ (or maybe "to use" ?)

With this,

Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/bridge/parade-ps8622.c | 2 +-
>  drivers/gpu/drm/tiny/ofdrm.c           | 8 ++------
>  2 files changed, 3 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/parade-ps8622.c b/drivers/gpu/drm/bridge/parade-ps8622.c
> index 530ee6a19e7e..efa80e309b98 100644
> --- a/drivers/gpu/drm/bridge/parade-ps8622.c
> +++ b/drivers/gpu/drm/bridge/parade-ps8622.c
> @@ -496,7 +496,7 @@ static int ps8622_probe(struct i2c_client *client)
>  		ps8622->lane_count = ps8622->max_lane_count;
>  	}
>  
> -	if (!of_find_property(dev->of_node, "use-external-pwm", NULL)) {
> +	if (!of_property_read_bool(dev->of_node, "use-external-pwm")) {
>  		ps8622->bl = backlight_device_register("ps8622-backlight",
>  				dev, ps8622, &ps8622_backlight_ops,
>  				NULL);
> diff --git a/drivers/gpu/drm/tiny/ofdrm.c b/drivers/gpu/drm/tiny/ofdrm.c
> index 6e349ca42485..76cd7f515bab 100644
> --- a/drivers/gpu/drm/tiny/ofdrm.c
> +++ b/drivers/gpu/drm/tiny/ofdrm.c
> @@ -162,13 +162,9 @@ static bool display_get_big_endian_of(struct drm_device *dev, struct device_node
>  	bool big_endian;
>  
>  #ifdef __BIG_ENDIAN
> -	big_endian = true;
> -	if (of_get_property(of_node, "little-endian", NULL))
> -		big_endian = false;
> +	big_endian = !of_property_read_bool(of_node, "little-endian");
>  #else
> -	big_endian = false;
> -	if (of_get_property(of_node, "big-endian", NULL))
> -		big_endian = true;
> +	big_endian = of_property_read_bool(of_node, "big-endian");
>  #endif
>  
>  	return big_endian;

-- 
Regards,

Laurent Pinchart



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