diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2011-05-20 04:34:19 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-05-20 20:02:24 +1000 |
| commit | 2dafb74d63d3f79d0357ff19bf7691c22b034926 (patch) | |
| tree | aa7d15a2d63728324bb71e10e59b0b32df50f2e2 /drivers/gpu/drm/radeon/radeon_encoders.c | |
| parent | 3a5f4a21c5708479a9334c8a8268f300aea2c628 (diff) | |
| download | lwn-2dafb74d63d3f79d0357ff19bf7691c22b034926.tar.gz lwn-2dafb74d63d3f79d0357ff19bf7691c22b034926.zip | |
drm/radeon/kms: fix eDP panel power function
need to wait for the panel to power up.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_encoders.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_encoders.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 49fcd60b849d..cdac73975f6e 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -1095,7 +1095,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); } -void +bool atombios_set_edp_panel_power(struct drm_connector *connector, int action) { struct radeon_connector *radeon_connector = to_radeon_connector(connector); @@ -1106,23 +1106,37 @@ atombios_set_edp_panel_power(struct drm_connector *connector, int action) uint8_t frev, crev; if (connector->connector_type != DRM_MODE_CONNECTOR_eDP) - return; + goto done; if (!ASIC_IS_DCE4(rdev)) - return; + goto done; if ((action != ATOM_TRANSMITTER_ACTION_POWER_ON) && (action != ATOM_TRANSMITTER_ACTION_POWER_OFF)) - return; + goto done; if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev)) - return; + goto done; memset(&args, 0, sizeof(args)); args.v1.ucAction = action; atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + + /* wait for the panel to power up */ + if (action == ATOM_TRANSMITTER_ACTION_POWER_ON) { + int i; + + for (i = 0; i < 300; i++) { + if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) + return true; + mdelay(1); + } + return false; + } +done: + return true; } union external_encoder_control { |