diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/dce_v10_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c index 7f642b5..b888d72 100644 --- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c @@ -712,6 +712,45 @@ static void dce_v10_0_set_vga_render_state(struct amdgpu_device *adev, WREG32(mmVGA_RENDER_CONTROL, tmp); } +static int dce_v10_0_get_num_crtc(struct amdgpu_device *adev) +{ + int num_crtc = 0; + + switch (adev->asic_type) { + case CHIP_FIJI: + case CHIP_TONGA: + num_crtc = 6; + break; + default: + num_crtc = 0; + } + return num_crtc; +} + +void dce_v10_0_disable_dce(struct amdgpu_device *adev) +{ + /*Disable VGA render and enabled crtc, if has DCE engine*/ + if (amdgpu_atombios_has_dce_engine_info(adev)) { + u32 tmp; + int crtc_enabled, i; + + dce_v10_0_set_vga_render_state(adev, false); + + /*Disable crtc*/ + for (i = 0; i < dce_v10_0_get_num_crtc(adev); i++) { + crtc_enabled = REG_GET_FIELD(RREG32(mmCRTC_CONTROL + crtc_offsets[i]), + CRTC_CONTROL, CRTC_MASTER_EN); + if (crtc_enabled) { + WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 1); + tmp = RREG32(mmCRTC_CONTROL + crtc_offsets[i]); + tmp = REG_SET_FIELD(tmp, CRTC_CONTROL, CRTC_MASTER_EN, 0); + WREG32(mmCRTC_CONTROL + crtc_offsets[i], tmp); + WREG32(mmCRTC_UPDATE_LOCK + crtc_offsets[i], 0); + } + } + } +} + static void dce_v10_0_program_fmt(struct drm_encoder *encoder) { struct drm_device *dev = encoder->dev; @@ -2962,10 +3001,11 @@ static int dce_v10_0_early_init(void *handle) dce_v10_0_set_display_funcs(adev); dce_v10_0_set_irq_funcs(adev); + adev->mode_info.num_crtc = dce_v10_0_get_num_crtc(adev); + switch (adev->asic_type) { case CHIP_FIJI: case CHIP_TONGA: - adev->mode_info.num_crtc = 6; /* XXX 7??? */ adev->mode_info.num_hpd = 6; adev->mode_info.num_dig = 7; break; |
