diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/include/dispnv04/i2c/encoder_i2c.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/include/dispnv04/i2c/encoder_i2c.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/include/dispnv04/i2c/encoder_i2c.h b/drivers/gpu/drm/nouveau/include/dispnv04/i2c/encoder_i2c.h index 31334aa90781..869820701a56 100644 --- a/drivers/gpu/drm/nouveau/include/dispnv04/i2c/encoder_i2c.h +++ b/drivers/gpu/drm/nouveau/include/dispnv04/i2c/encoder_i2c.h @@ -202,7 +202,24 @@ static inline struct i2c_client *nouveau_i2c_encoder_get_client(struct drm_encod return to_encoder_i2c(encoder)->i2c_client; } -void nouveau_i2c_encoder_destroy(struct drm_encoder *encoder); +/** + * nouveau_i2c_encoder_destroy - Unregister the I2C device backing an encoder + * @drm_encoder: Encoder to be unregistered. + * + * This should be called from the @destroy method of an I2C slave + * encoder driver once I2C access is no longer needed. + */ +static __always_inline void nouveau_i2c_encoder_destroy(struct drm_encoder *drm_encoder) +{ + struct nouveau_i2c_encoder *encoder = to_encoder_i2c(drm_encoder); + struct i2c_client *client = nouveau_i2c_encoder_get_client(drm_encoder); + struct module *module = client->dev.driver->owner; + + i2c_unregister_device(client); + encoder->i2c_client = NULL; + + module_put(module); +} /* * Wrapper fxns which can be plugged in to drm_encoder_helper_funcs: |