diff options
| author | Su Sung Chung <Su.Chung@amd.com> | 2019-07-08 11:31:39 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-08-15 10:53:55 -0500 |
| commit | 91db9311945f01901ddb9813ce11364de214a156 (patch) | |
| tree | 1afec6692b3e5f2a29036ab0b889bf558adf91ac /drivers/gpu/drm/amd/display/include | |
| parent | 37495fbdf12d1bce30dbc228c901ef45eba35739 (diff) | |
| download | blackbird-op-linux-91db9311945f01901ddb9813ce11364de214a156.tar.gz blackbird-op-linux-91db9311945f01901ddb9813ce11364de214a156.zip | |
drm/amd/display: refactor gpio to allocate hw_container in constructor
[why]
if dynamic allocation fails during gpio_open, it will cause crash due to
page fault.
[how]
handle allocation when gpio object gets created and prevent from calling
gpio_open if allocation failed
Signed-off-by: Su Sung Chung <Su.Chung@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/include')
| -rw-r--r-- | drivers/gpu/drm/amd/display/include/gpio_interface.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/include/gpio_interface.h b/drivers/gpu/drm/amd/display/include/gpio_interface.h index 7de64195dc33..5e888a093c16 100644 --- a/drivers/gpu/drm/amd/display/include/gpio_interface.h +++ b/drivers/gpu/drm/amd/display/include/gpio_interface.h @@ -93,8 +93,17 @@ enum sync_source dal_gpio_get_sync_source( enum gpio_pin_output_state dal_gpio_get_output_state( const struct gpio *gpio); +struct hw_ddc *dal_gpio_get_ddc(struct gpio *gpio); + +struct hw_hpd *dal_gpio_get_hpd(struct gpio *gpio); + +struct hw_generic *dal_gpio_get_generic(struct gpio *gpio); + /* Close the handle */ void dal_gpio_close( struct gpio *gpio); + + + #endif |
