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drm/radeon/kms/atom: AdjustPixelClock fixes for DP bridges

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Need to set the external transmitter type properly in
AdjustPixelClock to get the properly output.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-06-16 10:06:16 -04:00 committed by Dave Airlie
parent f89931f345
commit cc9f67a0a0
2 changed files with 8 additions and 0 deletions
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7
drivers/gpu/drm/radeon/atombios_crtc.c
View file

@ -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;

1
drivers/gpu/drm/radeon/radeon_mode.h
View file

@ -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);