From f3aeceac61b6e2f3167717ea1793472108e47564 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 3 Jun 2011 16:39:06 -0400 Subject: [PATCH] drm/radeon/kms/atom: fix PHY init The PHY was not initialized correctly after ac89af1e1010640db072416c786f97391b85790f since the function bailed early as an encoder was not assigned. The encoder isn't necessary for PHY init so just assign to 0 for init so that the table is executed. Reported-by: Ari Savolainen Tested-by: Ari Savolainen Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_encoders.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 1b557554696e..03f124d626c2 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -954,10 +954,15 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t int dp_lane_count = 0; int connector_object_id = 0; int igp_lane_info = 0; + int dig_encoder = dig->dig_encoder; - if (action == ATOM_TRANSMITTER_ACTION_INIT) + if (action == ATOM_TRANSMITTER_ACTION_INIT) { connector = radeon_get_connector_for_encoder_init(encoder); - else + /* just needed to avoid bailing in the encoder check. the encoder + * isn't used for init + */ + dig_encoder = 0; + } else connector = radeon_get_connector_for_encoder(encoder); if (connector) { @@ -973,7 +978,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t } /* no dig encoder assigned */ - if (dig->dig_encoder == -1) + if (dig_encoder == -1) return; if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_DP) @@ -1023,7 +1028,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t if (dig->linkb) args.v3.acConfig.ucLinkSel = 1; - if (dig->dig_encoder & 1) + if (dig_encoder & 1) args.v3.acConfig.ucEncoderSel = 1; /* Select the PLL for the PHY @@ -1073,7 +1078,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t args.v3.acConfig.fDualLinkConnector = 1; } } else if (ASIC_IS_DCE32(rdev)) { - args.v2.acConfig.ucEncoderSel = dig->dig_encoder; + args.v2.acConfig.ucEncoderSel = dig_encoder; if (dig->linkb) args.v2.acConfig.ucLinkSel = 1; @@ -1100,7 +1105,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t } else { args.v1.ucConfig = ATOM_TRANSMITTER_CONFIG_CLKSRC_PPLL; - if (dig->dig_encoder) + if (dig_encoder) args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_DIG2_ENCODER; else args.v1.ucConfig |= ATOM_TRANSMITTER_CONFIG_DIG1_ENCODER; -- GitLab