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drm/amdgpu/dce6: add dce_v6_0_disable_dce 

Needed for virtual dce support

Reviewed-By: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2016-09-29 23:30:21 -04:00
parent 5481e27f6f
commit 1d160f4303
2 changed files with 48 additions and 4 deletions
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48
drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
View File

@ -617,6 +617,49 @@ static void dce_v6_0_set_vga_render_state(struct amdgpu_device *adev,
}
static int dce_v6_0_get_num_crtc(struct amdgpu_device *adev)
{
int num_crtc = 0;
switch (adev->asic_type) {
case CHIP_TAHITI:
case CHIP_PITCAIRN:
case CHIP_VERDE:
num_crtc = 6;
break;
case CHIP_OLAND:
num_crtc = 2;
break;
default:
num_crtc = 0;
}
return num_crtc;
}
void dce_v6_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_v6_0_set_vga_render_state(adev, false);
/*Disable crtc*/
for (i = 0; i < dce_v6_0_get_num_crtc(adev); i++) {
crtc_enabled = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]) &
EVERGREEN_CRTC_MASTER_EN;
if (crtc_enabled) {
WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
tmp = RREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i]);
tmp &= ~EVERGREEN_CRTC_MASTER_EN;
WREG32(EVERGREEN_CRTC_CONTROL + crtc_offsets[i], tmp);
WREG32(EVERGREEN_CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
}
}
}
}
static void dce_v6_0_program_fmt(struct drm_encoder *encoder)
{
@ -2338,21 +2381,20 @@ static int dce_v6_0_early_init(void *handle)
dce_v6_0_set_display_funcs(adev);
dce_v6_0_set_irq_funcs(adev);
adev->mode_info.num_crtc = dce_v6_0_get_num_crtc(adev);
switch (adev->asic_type) {
case CHIP_TAHITI:
case CHIP_PITCAIRN:
case CHIP_VERDE:
adev->mode_info.num_crtc = 6;
adev->mode_info.num_hpd = 6;
adev->mode_info.num_dig = 6;
break;
case CHIP_OLAND:
adev->mode_info.num_crtc = 2;
adev->mode_info.num_hpd = 2;
adev->mode_info.num_dig = 2;
break;
default:
/* FIXME: not supported yet */
return -EINVAL;
}

2
drivers/gpu/drm/amd/amdgpu/dce_v6_0.h
View File

@ -26,4 +26,6 @@
extern const struct amd_ip_funcs dce_v6_0_ip_funcs;
void dce_v6_0_disable_dce(struct amdgpu_device *adev);
#endif