From: Dave Airlie <airl...@redhat.com>
booting a Lenovo W500 with LVDS + DP outputs showed up a TODO we had
on our list, to pick a correct digital encoder block. The LVTMA
encoder requires the second digital encoder, all others can use any
encoder at all.
This fixes the digital encoder selection logic to enable LVDS/DP combos
to work okay.
V2: fix silly addition of connector dig_block and cleanup the other
places in the code that pick the encoder.
V3: rename to dig_encoder and clean up further - also fix
the picking algorithm.
tested on Lenovo W500 + desktop 3650 cards.
Signed-off-by: Dave Airlie <airl...@redhat.com>
---
drivers/gpu/drm/radeon/atombios_dp.c | 23 ++---
drivers/gpu/drm/radeon/radeon_encoders.c | 163 ++++++++++++++++-------------
drivers/gpu/drm/radeon/radeon_mode.h | 2 +-
3 files changed, 99 insertions(+), 89 deletions(-)
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c
b/drivers/gpu/drm/radeon/atombios_dp.c
index 9c023d2..7106011 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -596,21 +596,14 @@ void dp_link_train(struct drm_encoder *encoder,
return;
dig_connector = radeon_connector->con_priv;
- if (ASIC_IS_DCE32(rdev)) {
- if (dig->dig_block)
- enc_id |= ATOM_DP_CONFIG_DIG2_ENCODER;
- else
- enc_id |= ATOM_DP_CONFIG_DIG1_ENCODER;
- if (dig_connector->linkb)
- enc_id |= ATOM_DP_CONFIG_LINK_B;
- else
- enc_id |= ATOM_DP_CONFIG_LINK_A;
- } else {
- if (dig_connector->linkb)
- enc_id |= ATOM_DP_CONFIG_DIG2_ENCODER |
ATOM_DP_CONFIG_LINK_B;
- else
- enc_id |= ATOM_DP_CONFIG_DIG1_ENCODER |
ATOM_DP_CONFIG_LINK_A;
- }
+ if (dig->dig_encoder)
+ enc_id |= ATOM_DP_CONFIG_DIG2_ENCODER;
+ else
+ enc_id |= ATOM_DP_CONFIG_DIG1_ENCODER;
+ if (dig_connector->linkb)
+ enc_id |= ATOM_DP_CONFIG_LINK_B;
+ else
+ enc_id |= ATOM_DP_CONFIG_LINK_A;
memset(link_configuration, 0, DP_LINK_CONFIGURATION_SIZE);
if (dig_connector->dp_clock == 270000)
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c
b/drivers/gpu/drm/radeon/radeon_encoders.c
index 10746c9..f4b2f99 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -156,6 +156,26 @@ radeon_get_encoder_id(struct drm_device *dev, uint32_t
supported_device, uint8_t
return ret;
}
+static inline bool radeon_encoder_is_digital(struct drm_encoder *encoder)
+{
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ switch (radeon_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_LVDS:
+ case ENCODER_OBJECT_ID_INTERNAL_TMDS1:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
+ case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
+ case ENCODER_OBJECT_ID_INTERNAL_DVO1:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
+ case ENCODER_OBJECT_ID_INTERNAL_DDI:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+ return true;
+ default:
+ return false;
+ }
+}
void
radeon_link_encoder_connector(struct drm_device *dev)
{
@@ -676,31 +696,11 @@ atombios_dig_encoder_setup(struct drm_encoder *encoder,
int action)
memset(&args, 0, sizeof(args));
- if (ASIC_IS_DCE32(rdev)) {
- if (dig->dig_block)
- index = GetIndexIntoMasterTable(COMMAND,
DIG2EncoderControl);
- else
- index = GetIndexIntoMasterTable(COMMAND,
DIG1EncoderControl);
- num = dig->dig_block + 1;
- } else {
- switch (radeon_encoder->encoder_id) {
- case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
- /* XXX doesn't really matter which dig encoder we pick
as long as it's
- * not already in use
- */
- if (dig_connector->linkb)
- index = GetIndexIntoMasterTable(COMMAND,
DIG2EncoderControl);
- else
- index = GetIndexIntoMasterTable(COMMAND,
DIG1EncoderControl);
- num = 1;
- break;
- case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
- /* Only dig2 encoder can drive LVTMA */
- index = GetIndexIntoMasterTable(COMMAND,
DIG2EncoderControl);
- num = 2;
- break;
- }
- }
+ if (dig->dig_encoder)
+ index = GetIndexIntoMasterTable(COMMAND, DIG2EncoderControl);
+ else
+ index = GetIndexIntoMasterTable(COMMAND, DIG1EncoderControl);
+ num = dig->dig_encoder + 1;
atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev,
&crev);
@@ -822,7 +822,7 @@ atombios_dig_transmitter_setup(struct drm_encoder *encoder,
int action, uint8_t
args.v1.usPixelClock =
cpu_to_le16(radeon_encoder->pixel_clock / 10);
}
if (ASIC_IS_DCE32(rdev)) {
- if (dig->dig_block)
+ if (dig->dig_encoder == 1)
args.v2.acConfig.ucEncoderSel = 1;
if (dig_connector->linkb)
args.v2.acConfig.ucLinkSel = 1;
@@ -849,17 +849,16 @@ atombios_dig_transmitter_setup(struct drm_encoder
*encoder, int action, uint8_t
args.v2.acConfig.fCoherentMode = 1;
}
} else {
+
args.v1.ucConfig = ATOM_TRANSMITTER_CONFIG_CLKSRC_PPLL;
+ if (dig->dig_encoder)
+ args.v1.ucConfig |=
ATOM_TRANSMITTER_CONFIG_DIG2_ENCODER;
+ else
+ args.v1.ucConfig |=
ATOM_TRANSMITTER_CONFIG_DIG1_ENCODER;
+
switch (radeon_encoder->encoder_id) {
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
- /* XXX doesn't really matter which dig encoder we pick
as long as it's
- * not already in use
- */
- if (dig_connector->linkb)
- args.v1.ucConfig |=
ATOM_TRANSMITTER_CONFIG_DIG2_ENCODER;
- else
- args.v1.ucConfig |=
ATOM_TRANSMITTER_CONFIG_DIG1_ENCODER;
if (rdev->flags & RADEON_IS_IGP) {
if (radeon_encoder->pixel_clock > 165000) {
if (dig_connector->igp_lane_info & 0x3)
@@ -878,10 +877,6 @@ atombios_dig_transmitter_setup(struct drm_encoder
*encoder, int action, uint8_t
}
}
break;
- case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
- /* Only dig2 encoder can drive LVTMA */
- args.v1.ucConfig |=
ATOM_TRANSMITTER_CONFIG_DIG2_ENCODER;
- break;
}
if (radeon_encoder->pixel_clock > 165000)
@@ -1046,6 +1041,7 @@ atombios_set_encoder_crtc_source(struct drm_encoder
*encoder)
union crtc_sourc_param args;
int index = GetIndexIntoMasterTable(COMMAND, SelectCRTC_Source);
uint8_t frev, crev;
+ struct radeon_encoder_atom_dig *dig;
memset(&args, 0, sizeof(args));
@@ -1109,40 +1105,16 @@ atombios_set_encoder_crtc_source(struct drm_encoder
*encoder)
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
- if (ASIC_IS_DCE32(rdev)) {
- if (radeon_crtc->crtc_id)
- args.v2.ucEncoderID =
ASIC_INT_DIG2_ENCODER_ID;
- else
- args.v2.ucEncoderID =
ASIC_INT_DIG1_ENCODER_ID;
- } else {
- struct drm_connector *connector;
- struct radeon_connector
*radeon_connector;
- struct radeon_connector_atom_dig
*dig_connector;
-
- connector =
radeon_get_connector_for_encoder(encoder);
- if (!connector)
- return;
- radeon_connector =
to_radeon_connector(connector);
- if (!radeon_connector->con_priv)
- return;
- dig_connector =
radeon_connector->con_priv;
-
- /* XXX doesn't really matter which dig
encoder we pick as long as it's
- * not already in use
- */
- if (dig_connector->linkb)
- args.v2.ucEncoderID =
ASIC_INT_DIG2_ENCODER_ID;
- else
- args.v2.ucEncoderID =
ASIC_INT_DIG1_ENCODER_ID;
- }
+ case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
+ dig = radeon_encoder->enc_priv;
+ if (dig->dig_encoder)
+ args.v2.ucEncoderID =
ASIC_INT_DIG2_ENCODER_ID;
+ else
+ args.v2.ucEncoderID =
ASIC_INT_DIG1_ENCODER_ID;
break;
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
args.v2.ucEncoderID = ASIC_INT_DVO_ENCODER_ID;
break;
- case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA:
- /* Only dig2 encoder can drive LVTMA */
- args.v2.ucEncoderID = ASIC_INT_DIG2_ENCODER_ID;
- break;
case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DAC1:
if (radeon_encoder->active_device &
(ATOM_DEVICE_TV_SUPPORT))
args.v2.ucEncoderID =
ASIC_INT_TV_ENCODER_ID;
@@ -1202,6 +1174,47 @@ atombios_apply_encoder_quirks(struct drm_encoder
*encoder,
}
}
+static int radeon_atom_pick_dig_encoder(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+ struct radeon_device *rdev = dev->dev_private;
+ struct radeon_crtc *radeon_crtc = to_radeon_crtc(encoder->crtc);
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct drm_encoder *test_encoder;
+ struct radeon_encoder_atom_dig *dig;
+ uint32_t dig_enc_in_use = 0;
+ /* on DCE32 and encoder can driver any block so just crtc id */
+ if (ASIC_IS_DCE32(rdev)) {
+ return radeon_crtc->crtc_id;
+ }
+
+ /* on DCE3 - LVTMA can only be driven by DIGB */
+ list_for_each_entry(test_encoder, &dev->mode_config.encoder_list, head)
{
+ struct radeon_encoder *radeon_test_encoder;
+
+ if (encoder == test_encoder)
+ continue;
+
+ if (!radeon_encoder_is_digital(test_encoder))
+ continue;
+
+ radeon_test_encoder = to_radeon_encoder(test_encoder);
+ dig = radeon_test_encoder->enc_priv;
+
+ if (dig->dig_encoder >= 0)
+ dig_enc_in_use |= (1 << dig->dig_encoder);
+ }
+
+ if (radeon_encoder->encoder_id ==
ENCODER_OBJECT_ID_INTERNAL_KLDSCP_LVTMA) {
+ if (dig_enc_in_use & 0x2)
+ DRM_ERROR("LVDS required digital encoder 2 but it was
in use - stealing\n");
+ return 1;
+ }
+ if (!(dig_enc_in_use & 1))
+ return 0;
+ return 1;
+}
+
static void
radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
@@ -1214,12 +1227,9 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder,
if (radeon_encoder->active_device &
(ATOM_DEVICE_DFP_SUPPORT | ATOM_DEVICE_LCD_SUPPORT)) {
- if (radeon_encoder->enc_priv) {
- struct radeon_encoder_atom_dig *dig;
-
- dig = radeon_encoder->enc_priv;
- dig->dig_block = radeon_crtc->crtc_id;
- }
+ struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
+ if (dig)
+ dig->dig_encoder =
radeon_atom_pick_dig_encoder(encoder);
}
radeon_encoder->pixel_clock = adjusted_mode->clock;
@@ -1379,7 +1389,13 @@ static void radeon_atom_encoder_commit(struct
drm_encoder *encoder)
static void radeon_atom_encoder_disable(struct drm_encoder *encoder)
{
struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct radeon_encoder_atom_dig *dig;
radeon_atom_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
+
+ if (radeon_encoder_is_digital(encoder)) {
+ dig = radeon_encoder->enc_priv;
+ dig->dig_encoder = -1;
+ }
radeon_encoder->active_device = 0;
}
@@ -1436,6 +1452,7 @@ radeon_atombios_set_dig_info(struct radeon_encoder
*radeon_encoder)
/* coherent mode by default */
dig->coherent_mode = true;
+ dig->dig_encoder = -1;
return dig;
}
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h
b/drivers/gpu/drm/radeon/radeon_mode.h
index 96b851f..e81b2ae 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -299,7 +299,7 @@ struct radeon_atom_ss {
struct radeon_encoder_atom_dig {
/* atom dig */
bool coherent_mode;
- int dig_block;
+ int dig_encoder; /* -1 disabled, 0 DIGA, 1 DIGB */
/* atom lvds */
uint32_t lvds_misc;
uint16_t panel_pwr_delay;
--
1.6.5.2
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