diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2020-02-05 10:18:04 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-02-26 14:21:13 -0500 |
| commit | 405a1f9090d1acec75aeb86569da60beca9fe68f (patch) | |
| tree | 985fc4bb4d7b72c855206ba9bd0db1298271d651 /drivers/gpu/drm/amd/amdgpu | |
| parent | 14f04fa4834a515146115bca755c76bc9b73aa8c (diff) | |
drm/amdgpu/display: split dp connector registration (v4)
Split into init and register functions to avoid a segfault
in some configs when the load/unload callbacks are removed.
v2:
- add back accidently dropped has_aux setting
- set dev in late_register
v3:
- fix dp cec ordering
v4:
- squash in kdev reference fix
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/atombios_dp.c | 10 |
2 files changed, 18 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c index ec1501e3a63a..f355d9a752d2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c @@ -1461,6 +1461,20 @@ static enum drm_mode_status amdgpu_connector_dp_mode_valid(struct drm_connector return MODE_OK; } +static int +amdgpu_connector_late_register(struct drm_connector *connector) +{ + struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); + int r = 0; + + if (amdgpu_connector->ddc_bus->has_aux) { + amdgpu_connector->ddc_bus->aux.dev = amdgpu_connector->base.kdev; + r = drm_dp_aux_register(&amdgpu_connector->ddc_bus->aux); + } + + return r; +} + static const struct drm_connector_helper_funcs amdgpu_connector_dp_helper_funcs = { .get_modes = amdgpu_connector_dp_get_modes, .mode_valid = amdgpu_connector_dp_mode_valid, @@ -1475,6 +1489,7 @@ static const struct drm_connector_funcs amdgpu_connector_dp_funcs = { .early_unregister = amdgpu_connector_unregister, .destroy = amdgpu_connector_destroy, .force = amdgpu_connector_dvi_force, + .late_register = amdgpu_connector_late_register, }; static const struct drm_connector_funcs amdgpu_connector_edp_funcs = { @@ -1485,6 +1500,7 @@ static const struct drm_connector_funcs amdgpu_connector_edp_funcs = { .early_unregister = amdgpu_connector_unregister, .destroy = amdgpu_connector_destroy, .force = amdgpu_connector_dvi_force, + .late_register = amdgpu_connector_late_register, }; void diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c index ea702a64f807..9b74cfdba7b8 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_dp.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_dp.c @@ -186,16 +186,10 @@ amdgpu_atombios_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *m void amdgpu_atombios_dp_aux_init(struct amdgpu_connector *amdgpu_connector) { - int ret; - amdgpu_connector->ddc_bus->rec.hpd = amdgpu_connector->hpd.hpd; - amdgpu_connector->ddc_bus->aux.dev = amdgpu_connector->base.kdev; amdgpu_connector->ddc_bus->aux.transfer = amdgpu_atombios_dp_aux_transfer; - ret = drm_dp_aux_register(&amdgpu_connector->ddc_bus->aux); - if (!ret) - amdgpu_connector->ddc_bus->has_aux = true; - - WARN(ret, "drm_dp_aux_register_i2c_bus() failed with error %d\n", ret); + drm_dp_aux_init(&amdgpu_connector->ddc_bus->aux); + amdgpu_connector->ddc_bus->has_aux = true; } /***** general DP utility functions *****/ |