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drm/radeon: fix dual-head on rv250 

Plugged in FireMV with the rv250 on it, and the second crtc/dac didn't work,
we were reading/writing different registers than we were modifying in the code.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2010-06-09 14:03:48 +10:00
parent 7e27d6e778
commit 1ab064de4f
1 changed files with 9 additions and 13 deletions
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22
drivers/gpu/drm/radeon/radeon_legacy_encoders.c
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@ -928,16 +928,14 @@ static void radeon_legacy_tv_dac_mode_set(struct drm_encoder *encoder,
if (ASIC_IS_R300(rdev)) {
gpiopad_a = RREG32(RADEON_GPIOPAD_A) | 1;
disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL);
}
if (rdev->family == CHIP_R200 || ASIC_IS_R300(rdev))
disp_tv_out_cntl = RREG32(RADEON_DISP_TV_OUT_CNTL);
else
} else if (rdev->family != CHIP_R200)
disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG);
if (rdev->family == CHIP_R200)
else if (rdev->family == CHIP_R200)
fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
if (rdev->family >= CHIP_R200)
disp_tv_out_cntl = RREG32(RADEON_DISP_TV_OUT_CNTL);
if (is_tv) {
uint32_t dac_cntl;
@ -1002,15 +1000,13 @@ static void radeon_legacy_tv_dac_mode_set(struct drm_encoder *encoder,
if (ASIC_IS_R300(rdev)) {
WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1);
WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
}
} else if (rdev->family != CHIP_R200)
WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
else if (rdev->family == CHIP_R200)
WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
if (rdev->family >= CHIP_R200)
WREG32(RADEON_DISP_TV_OUT_CNTL, disp_tv_out_cntl);
else
WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
if (rdev->family == CHIP_R200)
WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
if (is_tv)
radeon_legacy_tv_mode_set(encoder, mode, adjusted_mode);