Need to set the external transmitter type properly in
AdjustPixelClock to get the properly output.
Signed-off-by: Alex Deucher <alexdeuc...@gmail.com>
---
drivers/gpu/drm/radeon/atombios_crtc.c | 7 +++++++
drivers/gpu/drm/radeon/radeon_mode.h | 1 +
2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c
b/drivers/gpu/drm/radeon/atombios_crtc.c
index 84a69e7..9541995 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -671,6 +671,13 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
DISPPLL_CONFIG_DUAL_LINK;
}
}
+ if (radeon_encoder_is_dp_bridge(encoder)) {
+ struct drm_encoder *ext_encoder =
radeon_atom_get_external_encoder(encoder);
+ struct radeon_encoder
*ext_radeon_encoder = to_radeon_encoder(ext_encoder);
+ args.v3.sInput.ucExtTransmitterID =
ext_radeon_encoder->encoder_id;
+ } else
+ args.v3.sInput.ucExtTransmitterID = 0;
+
atom_execute_table(rdev->mode_info.atom_context,
index, (uint32_t *)&args);
adjusted_clock =
le32_to_cpu(args.v3.sOutput.ulDispPllFreq) * 10;
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h
b/drivers/gpu/drm/radeon/radeon_mode.h
index f734b37..6df4e3c 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -484,6 +484,7 @@ extern void atombios_dig_transmitter_setup(struct
drm_encoder *encoder,
int action, uint8_t lane_num,
uint8_t lane_set);
extern void radeon_atom_ext_encoder_setup_ddc(struct drm_encoder *encoder);
+extern struct drm_encoder *radeon_atom_get_external_encoder(struct drm_encoder
*encoder);
extern int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode,
u8 write_byte, u8 *read_byte);
--
1.7.1.1
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