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authorAlex Deucher <alexdeucher@gmail.com>2011-05-20 04:34:19 -0400
committerDave Airlie <airlied@redhat.com>2011-05-20 20:02:24 +1000
commit2dafb74d63d3f79d0357ff19bf7691c22b034926 (patch)
treeaa7d15a2d63728324bb71e10e59b0b32df50f2e2
parent3a5f4a21c5708479a9334c8a8268f300aea2c628 (diff)
downloadop-kernel-dev-2dafb74d63d3f79d0357ff19bf7691c22b034926.zip
op-kernel-dev-2dafb74d63d3f79d0357ff19bf7691c22b034926.tar.gz
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>
-rw-r--r--drivers/gpu/drm/radeon/radeon_encoders.c24
-rw-r--r--drivers/gpu/drm/radeon/radeon_mode.h2
2 files changed, 20 insertions, 6 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 49fcd60..cdac739 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 {
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 9c57538..e4d3237 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -545,7 +545,7 @@ struct drm_encoder *radeon_encoder_legacy_tmds_ext_add(struct drm_device *dev, i
extern void atombios_dvo_setup(struct drm_encoder *encoder, int action);
extern void atombios_digital_setup(struct drm_encoder *encoder, int action);
extern int atombios_get_encoder_mode(struct drm_encoder *encoder);
-extern void atombios_set_edp_panel_power(struct drm_connector *connector, int action);
+extern bool atombios_set_edp_panel_power(struct drm_connector *connector, int action);
extern void radeon_encoder_set_active_device(struct drm_encoder *encoder);
extern void radeon_crtc_load_lut(struct drm_crtc *crtc);
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