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drm/radeon: use drm_dp_dpcd_read_link_status()

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Replace the radeon specific version with the generic version.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Alex Deucher 2014-03-21 10:34:08 -04:00 committed by Christian König
parent 496263bf2b
commit ab8f1a2a0a
1 changed files with 5 additions and 25 deletions
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30
drivers/gpu/drm/radeon/atombios_dp.c
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@ -549,32 +549,12 @@ int radeon_dp_mode_valid_helper(struct drm_connector *connector,
return MODE_OK;
}
static bool radeon_dp_get_link_status(struct radeon_connector *radeon_connector,
u8 link_status[DP_LINK_STATUS_SIZE])
{
struct radeon_connector_atom_dig *dig_connector;
int ret;
if (!radeon_connector->con_priv)
return false;
dig_connector = radeon_connector->con_priv;
ret = drm_dp_dpcd_read(&dig_connector->dp_i2c_bus->aux, DP_LANE0_1_STATUS,
link_status, DP_LINK_STATUS_SIZE);
if (ret <= 0) {
return false;
}
DRM_DEBUG_KMS("link status %6ph\n", link_status);
return true;
}
bool radeon_dp_needs_link_train(struct radeon_connector *radeon_connector)
{
u8 link_status[DP_LINK_STATUS_SIZE];
struct radeon_connector_atom_dig *dig = radeon_connector->con_priv;
if (!radeon_dp_get_link_status(radeon_connector, link_status))
if (drm_dp_dpcd_read_link_status(&dig->dp_i2c_bus->aux, link_status) <= 0)
return false;
if (drm_dp_channel_eq_ok(link_status, dig->dp_lane_count))
return false;
@ -605,7 +585,6 @@ struct radeon_dp_link_train_info {
struct radeon_device *rdev;
struct drm_encoder *encoder;
struct drm_connector *connector;
struct radeon_connector *radeon_connector;
int enc_id;
int dp_clock;
int dp_lane_count;
@ -752,7 +731,8 @@ static int radeon_dp_link_train_cr(struct radeon_dp_link_train_info *dp_info)
while (1) {
drm_dp_link_train_clock_recovery_delay(dp_info->dpcd);
if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status)) {
if (drm_dp_dpcd_read_link_status(dp_info->aux,
dp_info->link_status) <= 0) {
DRM_ERROR("displayport link status failed\n");
break;
}
@ -814,7 +794,8 @@ static int radeon_dp_link_train_ce(struct radeon_dp_link_train_info *dp_info)
while (1) {
drm_dp_link_train_channel_eq_delay(dp_info->dpcd);
if (!radeon_dp_get_link_status(dp_info->radeon_connector, dp_info->link_status)) {
if (drm_dp_dpcd_read_link_status(dp_info->aux,
dp_info->link_status) <= 0) {
DRM_ERROR("displayport link status failed\n");
break;
}
@ -907,7 +888,6 @@ void radeon_dp_link_train(struct drm_encoder *encoder,
dp_info.rdev = rdev;
dp_info.encoder = encoder;
dp_info.connector = connector;
dp_info.radeon_connector = radeon_connector;
dp_info.dp_lane_count = dig_connector->dp_lane_count;
dp_info.dp_clock = dig_connector->dp_clock;
dp_info.aux = &dig_connector->dp_i2c_bus->aux;