diff options
| author |   Slava Grigorev <slava.grigorev@amd.com> | 2016-01-26 17:35:57 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2016-01-27 12:50:25 -0500 |
| commit | fe6fc1f132b4300c1f6defd43a5d673eb60a820d (patch) | |
| tree | 8fec06b5d46d630d6887efc148f0b5d9b90dd4f5 /drivers/gpu/drm/radeon/radeon_atombios.c | |
| parent | drm/radeon: Add a common function for DFS handling (diff) | |
| download | linux-dev-fe6fc1f132b4300c1f6defd43a5d673eb60a820d.tar.xz linux-dev-fe6fc1f132b4300c1f6defd43a5d673eb60a820d.zip | |
drm/radeon: fix DP audio support for APU with DCE4.1 display engine
Properly setup the DFS divider for DP audio for DCE4.1.
Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_atombios.c | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 9a9363a7e5b9..de9a2ffcf5f7 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1106,6 +1106,31 @@ union firmware_info { ATOM_FIRMWARE_INFO_V2_2 info_22; }; +union igp_info { + struct _ATOM_INTEGRATED_SYSTEM_INFO info; + struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2; + struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6; + struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7; + struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8; +}; + +static void radeon_atombios_get_dentist_vco_freq(struct radeon_device *rdev) +{ + struct radeon_mode_info *mode_info = &rdev->mode_info; + int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo); + union igp_info *igp_info; + u8 frev, crev; + u16 data_offset; + + if (atom_parse_data_header(mode_info->atom_context, index, NULL, + &frev, &crev, &data_offset)) { + igp_info = (union igp_info *)(mode_info->atom_context->bios + + data_offset); + rdev->clock.vco_freq = + le32_to_cpu(igp_info->info_6.ulDentistVCOFreq); + } +} + bool radeon_atom_get_clock_info(struct drm_device *dev) { struct radeon_device *rdev = dev->dev_private; @@ -1260,6 +1285,10 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) if (ASIC_IS_DCE8(rdev)) rdev->clock.vco_freq = le32_to_cpu(firmware_info->info_22.ulGPUPLL_OutputFreq); + else if (ASIC_IS_DCE5(rdev)) + rdev->clock.vco_freq = rdev->clock.current_dispclk; + else if (ASIC_IS_DCE41(rdev)) + radeon_atombios_get_dentist_vco_freq(rdev); else rdev->clock.vco_freq = rdev->clock.current_dispclk; @@ -1272,14 +1301,6 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) return false; } -union igp_info { - struct _ATOM_INTEGRATED_SYSTEM_INFO info; - struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2; - struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6; - struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7; - struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8; -}; - bool radeon_atombios_sideport_present(struct radeon_device *rdev) { struct radeon_mode_info *mode_info = &rdev->mode_info; |