Re: [PATCH] drm/ssd130x: Drop _helper prefix from struct drm_*_helper_funcs callbacks

[Thomas Zimmermann <tzimmermann@suse.de>]

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Hi

Am 14.09.23 um 21:51 schrieb Javier Martinez Canillas:
> The driver uses a naming convention where functions for struct drm_*_funcs
> callbacks are named ssd130x_$object_$operation, while the callbacks for
> struct drm_*_helper_funcs are named ssd130x_$object_helper_$operation.
> 
> The idea is that this helper_ prefix in the function names denote that are
> for struct drm_*_helper_funcs callbacks. This convention was copied from
> other drivers, when ssd130x was written but Maxime pointed out that is the
> exception rather than the norm.

I guess you found this in my code. I want to point out that I use the 
_helper infix to signal that these are callback for 
drm_primary_plane_helper_funcs and *not* drm_primary_plane_funcs. The 
naming is intentional.

Best regards
Thomas

> 
> So let's get rid of the _helper prefixes from the function handlers names.
> 
> Suggested-by: Maxime Ripard <mripard@kernel.org>
> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
> ---
> 
>   drivers/gpu/drm/solomon/ssd130x.c | 46 +++++++++++++++----------------
>   1 file changed, 23 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c
> index 8ab02724f65f..245e4ba1c041 100644
> --- a/drivers/gpu/drm/solomon/ssd130x.c
> +++ b/drivers/gpu/drm/solomon/ssd130x.c
> @@ -630,8 +630,8 @@ static int ssd130x_fb_blit_rect(struct drm_framebuffer *fb,
>   	return ret;
>   }
>   
> -static int ssd130x_primary_plane_helper_atomic_check(struct drm_plane *plane,
> -						     struct drm_atomic_state *state)
> +static int ssd130x_primary_plane_atomic_check(struct drm_plane *plane,
> +					      struct drm_atomic_state *state)
>   {
>   	struct drm_device *drm = plane->dev;
>   	struct ssd130x_device *ssd130x = drm_to_ssd130x(drm);
> @@ -667,8 +667,8 @@ static int ssd130x_primary_plane_helper_atomic_check(struct drm_plane *plane,
>   	return 0;
>   }
>   
> -static void ssd130x_primary_plane_helper_atomic_update(struct drm_plane *plane,
> -						       struct drm_atomic_state *state)
> +static void ssd130x_primary_plane_atomic_update(struct drm_plane *plane,
> +						struct drm_atomic_state *state)
>   {
>   	struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, plane);
>   	struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane);
> @@ -701,8 +701,8 @@ static void ssd130x_primary_plane_helper_atomic_update(struct drm_plane *plane,
>   	drm_dev_exit(idx);
>   }
>   
> -static void ssd130x_primary_plane_helper_atomic_disable(struct drm_plane *plane,
> -							struct drm_atomic_state *state)
> +static void ssd130x_primary_plane_atomic_disable(struct drm_plane *plane,
> +						 struct drm_atomic_state *state)
>   {
>   	struct drm_device *drm = plane->dev;
>   	struct ssd130x_device *ssd130x = drm_to_ssd130x(drm);
> @@ -777,9 +777,9 @@ static void ssd130x_primary_plane_destroy_state(struct drm_plane *plane,
>   
>   static const struct drm_plane_helper_funcs ssd130x_primary_plane_helper_funcs = {
>   	DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,
> -	.atomic_check = ssd130x_primary_plane_helper_atomic_check,
> -	.atomic_update = ssd130x_primary_plane_helper_atomic_update,
> -	.atomic_disable = ssd130x_primary_plane_helper_atomic_disable,
> +	.atomic_check = ssd130x_primary_plane_atomic_check,
> +	.atomic_update = ssd130x_primary_plane_atomic_update,
> +	.atomic_disable = ssd130x_primary_plane_atomic_disable,
>   };
>   
>   static const struct drm_plane_funcs ssd130x_primary_plane_funcs = {
> @@ -791,8 +791,8 @@ static const struct drm_plane_funcs ssd130x_primary_plane_funcs = {
>   	.destroy = drm_plane_cleanup,
>   };
>   
> -static enum drm_mode_status ssd130x_crtc_helper_mode_valid(struct drm_crtc *crtc,
> -							   const struct drm_display_mode *mode)
> +static enum drm_mode_status ssd130x_crtc_mode_valid(struct drm_crtc *crtc,
> +						    const struct drm_display_mode *mode)
>   {
>   	struct ssd130x_device *ssd130x = drm_to_ssd130x(crtc->dev);
>   
> @@ -807,8 +807,8 @@ static enum drm_mode_status ssd130x_crtc_helper_mode_valid(struct drm_crtc *crtc
>   	return MODE_OK;
>   }
>   
> -static int ssd130x_crtc_helper_atomic_check(struct drm_crtc *crtc,
> -					    struct drm_atomic_state *state)
> +static int ssd130x_crtc_atomic_check(struct drm_crtc *crtc,
> +				     struct drm_atomic_state *state)
>   {
>   	struct drm_device *drm = crtc->dev;
>   	struct ssd130x_device *ssd130x = drm_to_ssd130x(drm);
> @@ -882,8 +882,8 @@ static void ssd130x_crtc_destroy_state(struct drm_crtc *crtc,
>    * the screen in the primary plane's atomic_disable function.
>    */
>   static const struct drm_crtc_helper_funcs ssd130x_crtc_helper_funcs = {
> -	.mode_valid = ssd130x_crtc_helper_mode_valid,
> -	.atomic_check = ssd130x_crtc_helper_atomic_check,
> +	.mode_valid = ssd130x_crtc_mode_valid,
> +	.atomic_check = ssd130x_crtc_atomic_check,
>   };
>   
>   static const struct drm_crtc_funcs ssd130x_crtc_funcs = {
> @@ -895,8 +895,8 @@ static const struct drm_crtc_funcs ssd130x_crtc_funcs = {
>   	.atomic_destroy_state = ssd130x_crtc_destroy_state,
>   };
>   
> -static void ssd130x_encoder_helper_atomic_enable(struct drm_encoder *encoder,
> -						 struct drm_atomic_state *state)
> +static void ssd130x_encoder_atomic_enable(struct drm_encoder *encoder,
> +					  struct drm_atomic_state *state)
>   {
>   	struct drm_device *drm = encoder->dev;
>   	struct ssd130x_device *ssd130x = drm_to_ssd130x(drm);
> @@ -921,8 +921,8 @@ static void ssd130x_encoder_helper_atomic_enable(struct drm_encoder *encoder,
>   	return;
>   }
>   
> -static void ssd130x_encoder_helper_atomic_disable(struct drm_encoder *encoder,
> -						  struct drm_atomic_state *state)
> +static void ssd130x_encoder_atomic_disable(struct drm_encoder *encoder,
> +					   struct drm_atomic_state *state)
>   {
>   	struct drm_device *drm = encoder->dev;
>   	struct ssd130x_device *ssd130x = drm_to_ssd130x(drm);
> @@ -935,15 +935,15 @@ static void ssd130x_encoder_helper_atomic_disable(struct drm_encoder *encoder,
>   }
>   
>   static const struct drm_encoder_helper_funcs ssd130x_encoder_helper_funcs = {
> -	.atomic_enable = ssd130x_encoder_helper_atomic_enable,
> -	.atomic_disable = ssd130x_encoder_helper_atomic_disable,
> +	.atomic_enable = ssd130x_encoder_atomic_enable,
> +	.atomic_disable = ssd130x_encoder_atomic_disable,
>   };
>   
>   static const struct drm_encoder_funcs ssd130x_encoder_funcs = {
>   	.destroy = drm_encoder_cleanup,
>   };
>   
> -static int ssd130x_connector_helper_get_modes(struct drm_connector *connector)
> +static int ssd130x_connector_get_modes(struct drm_connector *connector)
>   {
>   	struct ssd130x_device *ssd130x = drm_to_ssd130x(connector->dev);
>   	struct drm_display_mode *mode;
> @@ -963,7 +963,7 @@ static int ssd130x_connector_helper_get_modes(struct drm_connector *connector)
>   }
>   
>   static const struct drm_connector_helper_funcs ssd130x_connector_helper_funcs = {
> -	.get_modes = ssd130x_connector_helper_get_modes,
> +	.get_modes = ssd130x_connector_get_modes,
>   };
>   
>   static const struct drm_connector_funcs ssd130x_connector_funcs = {

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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