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drm/radeon/kms: DCE5 atom SetPixelClock updates

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Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-01-06 21:19:15 -05:00 committed by Dave Airlie
parent 881dd74ea7
commit f82b3ddc5f
2 changed files with 47 additions and 9 deletions
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31
drivers/gpu/drm/radeon/atombios_crtc.c
View file

@ -673,9 +673,14 @@ union set_pixel_clock {
PIXEL_CLOCK_PARAMETERS_V2 v2;
PIXEL_CLOCK_PARAMETERS_V3 v3;
PIXEL_CLOCK_PARAMETERS_V5 v5;
PIXEL_CLOCK_PARAMETERS_V6 v6;
};
static void atombios_crtc_set_dcpll(struct drm_crtc *crtc)
/* on DCE5, make sure the voltage is high enough to support the
* required disp clk.
*/
static void atombios_crtc_set_dcpll(struct drm_crtc *crtc,
u32 dispclk)
{
struct drm_device *dev = crtc->dev;
struct radeon_device *rdev = dev->dev_private;
@ -698,9 +703,16 @@ static void atombios_crtc_set_dcpll(struct drm_crtc *crtc)
* SetPixelClock provides the dividers
*/
args.v5.ucCRTC = ATOM_CRTC_INVALID;
args.v5.usPixelClock = rdev->clock.default_dispclk;
args.v5.usPixelClock = dispclk;
args.v5.ucPpll = ATOM_DCPLL;
break;
case 6:
/* if the default dcpll clock is specified,
* SetPixelClock provides the dividers
*/
args.v6.ulDispEngClkFreq = dispclk;
args.v6.ucPpll = ATOM_DCPLL;
break;
default:
DRM_ERROR("Unknown table version %d %d\n", frev, crev);
return;
@ -784,6 +796,18 @@ static void atombios_crtc_program_pll(struct drm_crtc *crtc,
args.v5.ucEncoderMode = encoder_mode;
args.v5.ucPpll = pll_id;
break;
case 6:
args.v6.ulCrtcPclkFreq.ucCRTC = crtc_id;
args.v6.ulCrtcPclkFreq.ulPixelClock = cpu_to_le32(clock / 10);
args.v6.ucRefDiv = ref_div;
args.v6.usFbDiv = cpu_to_le16(fb_div);
args.v6.ulFbDivDecFrac = cpu_to_le32(frac_fb_div * 100000);
args.v6.ucPostDiv = post_div;
args.v6.ucMiscInfo = 0; /* HDMI depth, etc. */
args.v6.ucTransmitterID = encoder_id;
args.v6.ucEncoderMode = encoder_mode;
args.v6.ucPpll = pll_id;
break;
default:
DRM_ERROR("Unknown table version %d %d\n", frev, crev);
return;
@ -1377,7 +1401,8 @@ int atombios_crtc_mode_set(struct drm_crtc *crtc,
rdev->clock.default_dispclk);
if (ss_enabled)
atombios_crtc_program_ss(crtc, ATOM_DISABLE, ATOM_DCPLL, &ss);
atombios_crtc_set_dcpll(crtc);
/* XXX: DCE5, make sure voltage, dispclk is high enough */
atombios_crtc_set_dcpll(crtc, rdev->clock.default_dispclk);
if (ss_enabled)
atombios_crtc_program_ss(crtc, ATOM_ENABLE, ATOM_DCPLL, &ss);
}

25
drivers/gpu/drm/radeon/radeon_atombios.c
View file

@ -1086,6 +1086,7 @@ union firmware_info {
ATOM_FIRMWARE_INFO_V1_3 info_13;
ATOM_FIRMWARE_INFO_V1_4 info_14;
ATOM_FIRMWARE_INFO_V2_1 info_21;
ATOM_FIRMWARE_INFO_V2_2 info_22;
};
bool radeon_atom_get_clock_info(struct drm_device *dev)
@ -1160,8 +1161,12 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
*p2pll = *p1pll;
/* system clock */
spll->reference_freq =
le16_to_cpu(firmware_info->info.usReferenceClock);
if (ASIC_IS_DCE4(rdev))
spll->reference_freq =
le16_to_cpu(firmware_info->info_21.usCoreReferenceClock);
else
spll->reference_freq =
le16_to_cpu(firmware_info->info.usReferenceClock);
spll->reference_div = 0;
spll->pll_out_min =
@ -1183,8 +1188,12 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
le16_to_cpu(firmware_info->info.usMaxEngineClockPLL_Input);
/* memory clock */
mpll->reference_freq =
le16_to_cpu(firmware_info->info.usReferenceClock);
if (ASIC_IS_DCE4(rdev))
mpll->reference_freq =
le16_to_cpu(firmware_info->info_21.usMemoryReferenceClock);
else
mpll->reference_freq =
le16_to_cpu(firmware_info->info.usReferenceClock);
mpll->reference_div = 0;
mpll->pll_out_min =
@ -1213,8 +1222,12 @@ bool radeon_atom_get_clock_info(struct drm_device *dev)
if (ASIC_IS_DCE4(rdev)) {
rdev->clock.default_dispclk =
le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
if (rdev->clock.default_dispclk == 0)
rdev->clock.default_dispclk = 60000; /* 600 Mhz */
if (rdev->clock.default_dispclk == 0) {
if (ASIC_IS_DCE5(rdev))
rdev->clock.default_dispclk = 54000; /* 540 Mhz */
else
rdev->clock.default_dispclk = 60000; /* 600 Mhz */
}
rdev->clock.dp_extclk =
le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
}