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Commit a7c47d6d authored by Rob Clark's avatar Rob Clark
Browse files

drm: i2c encoder helper wrappers 



Simplify life for drivers using an encoder-slave, so that they can make
their drm_encoder_helper_funcs const, rather than needing to dynamically
allocate and populate them.

Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
parent 6f646095

drivers/gpu/drm/drm_encoder_slave.c

+63 −0
Original line number Original line Diff line number Diff line
@@ -123,3 +123,66 @@ void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder) 
	module_put(module);

	module_put(module);

}

}

EXPORT_SYMBOL(drm_i2c_encoder_destroy);

EXPORT_SYMBOL(drm_i2c_encoder_destroy);



/*

 * Wrapper fxns which can be plugged in to drm_encoder_helper_funcs:

 */



static inline struct drm_encoder_slave_funcs *

get_slave_funcs(struct drm_encoder *enc)

{

	return to_encoder_slave(enc)->slave_funcs;

}



void drm_i2c_encoder_dpms(struct drm_encoder *encoder, int mode)

{

	get_slave_funcs(encoder)->dpms(encoder, mode);

}

EXPORT_SYMBOL(drm_i2c_encoder_dpms);



bool drm_i2c_encoder_mode_fixup(struct drm_encoder *encoder,

		const struct drm_display_mode *mode,

		struct drm_display_mode *adjusted_mode)

{

	return get_slave_funcs(encoder)->mode_fixup(encoder, mode, adjusted_mode);

}

EXPORT_SYMBOL(drm_i2c_encoder_mode_fixup);



void drm_i2c_encoder_prepare(struct drm_encoder *encoder)

{

	drm_i2c_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);

}

EXPORT_SYMBOL(drm_i2c_encoder_prepare);



void drm_i2c_encoder_commit(struct drm_encoder *encoder)

{

	drm_i2c_encoder_dpms(encoder, DRM_MODE_DPMS_ON);

}

EXPORT_SYMBOL(drm_i2c_encoder_commit);



void drm_i2c_encoder_mode_set(struct drm_encoder *encoder,

		struct drm_display_mode *mode,

		struct drm_display_mode *adjusted_mode)

{

	get_slave_funcs(encoder)->mode_set(encoder, mode, adjusted_mode);

}

EXPORT_SYMBOL(drm_i2c_encoder_mode_set);



enum drm_connector_status drm_i2c_encoder_detect(struct drm_encoder *encoder,

	    struct drm_connector *connector)

{

	return get_slave_funcs(encoder)->detect(encoder, connector);

}

EXPORT_SYMBOL(drm_i2c_encoder_detect);



void drm_i2c_encoder_save(struct drm_encoder *encoder)

{

	get_slave_funcs(encoder)->save(encoder);

}

EXPORT_SYMBOL(drm_i2c_encoder_save);



void drm_i2c_encoder_restore(struct drm_encoder *encoder)

{

	get_slave_funcs(encoder)->restore(encoder);

}

EXPORT_SYMBOL(drm_i2c_encoder_restore);

include/drm/drm_encoder_slave.h

+20 −0
Original line number Original line Diff line number Diff line
@@ -159,4 +159,24 @@ static inline void drm_i2c_encoder_unregister(struct drm_i2c_encoder_driver *dri 




void drm_i2c_encoder_destroy(struct drm_encoder *encoder);

void drm_i2c_encoder_destroy(struct drm_encoder *encoder);







/*

 * Wrapper fxns which can be plugged in to drm_encoder_helper_funcs:

 */



void drm_i2c_encoder_dpms(struct drm_encoder *encoder, int mode);

bool drm_i2c_encoder_mode_fixup(struct drm_encoder *encoder,

		const struct drm_display_mode *mode,

		struct drm_display_mode *adjusted_mode);

void drm_i2c_encoder_prepare(struct drm_encoder *encoder);

void drm_i2c_encoder_commit(struct drm_encoder *encoder);

void drm_i2c_encoder_mode_set(struct drm_encoder *encoder,

		struct drm_display_mode *mode,

		struct drm_display_mode *adjusted_mode);

enum drm_connector_status drm_i2c_encoder_detect(struct drm_encoder *encoder,

	    struct drm_connector *connector);

void drm_i2c_encoder_save(struct drm_encoder *encoder);

void drm_i2c_encoder_restore(struct drm_encoder *encoder);





#endif
 
#endif