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drm: i2c encoder helper wrappers

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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: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Rob Clark 2013-01-08 17:50:48 -06:00
parent 6f646095ec
commit a7c47d6dc4
2 changed files with 83 additions and 0 deletions
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63
drivers/gpu/drm/drm_encoder_slave.c
View File

@ -123,3 +123,66 @@ void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder)
module_put(module);
}
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);

20
include/drm/drm_encoder_slave.h
View File

@ -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);
/*
* 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