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drm/amdgpu/atom: add support for new SetPixelClock table 

New version of the SetPixelClock table for elm/baf.  The
new table calculates the pll dividers and handles spread
spectrum calculations and setup.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
This commit is contained in:
Alex Deucher 2015-10-15 02:05:31 -04:00
parent 541cd55557
commit ee681c9aa2
1 changed files with 41 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
drivers/gpu/drm/amd/amdgpu/atombios_crtc.c
View File

@ -461,6 +461,7 @@ union set_pixel_clock {
PIXEL_CLOCK_PARAMETERS_V3 v3;
PIXEL_CLOCK_PARAMETERS_V5 v5;
PIXEL_CLOCK_PARAMETERS_V6 v6;
PIXEL_CLOCK_PARAMETERS_V7 v7;
};
/* on DCE5, make sure the voltage is high enough to support the
@ -566,18 +567,18 @@ static bool is_pixel_clock_source_from_pll(u32 encoder_mode, int pll_id)
}
void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc,
u32 crtc_id,
int pll_id,
u32 encoder_mode,
u32 encoder_id,
u32 clock,
u32 ref_div,
u32 fb_div,
u32 frac_fb_div,
u32 post_div,
int bpc,
bool ss_enabled,
struct amdgpu_atom_ss *ss)
u32 crtc_id,
int pll_id,
u32 encoder_mode,
u32 encoder_id,
u32 clock,
u32 ref_div,
u32 fb_div,
u32 frac_fb_div,
u32 post_div,
int bpc,
bool ss_enabled,
struct amdgpu_atom_ss *ss)
{
struct drm_device *dev = crtc->dev;
struct amdgpu_device *adev = dev->dev_private;
@ -695,6 +696,34 @@ void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc,
args.v6.ucEncoderMode = encoder_mode;
args.v6.ucPpll = pll_id;
break;
case 7:
args.v7.ulPixelClock = cpu_to_le32(clock * 10); /* 100 hz units */
args.v7.ucMiscInfo = 0;
if ((encoder_mode == ATOM_ENCODER_MODE_DVI) &&
(clock > 165000))
args.v7.ucMiscInfo |= PIXEL_CLOCK_V7_MISC_DVI_DUALLINK_EN;
args.v7.ucCRTC = crtc_id;
if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
switch (bpc) {
case 8:
default:
args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_DIS;
break;
case 10:
args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_5_4;
break;
case 12:
args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_3_2;
break;
case 16:
args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_2_1;
break;
}
}
args.v7.ucTransmitterID = encoder_id;
args.v7.ucEncoderMode = encoder_mode;
args.v7.ucPpll = pll_id;
break;
default:
DRM_ERROR("Unknown table version %d %d\n", frev, crev);
return;