On Tue, 04 Aug 2015 16:39:21 +0200,
Jiri Slaby wrote:
>
> From: Libin Yang <libin.yang@xxxxxxxxx>
>
> 3.12-stable review patch. If anyone has any objections, please let me know.
>
> ===============
>
> commit 2d846c74027231264e57e4e34faf9576394e3ce0 upstream.
>
> HDMI/DP codec on SKL/BSW is in the power well.
> The power well must be turned on before probing the
> HDMI/DP codec.
>
> This is a temporary patch, which will power on the
> powerwell by adding AZX_DCAPS_I915_POWERWELL for SKL
> and BSW. After restructuring and new flag is added,
> this patch will be reverted.
>
> Signed-off-by: Libin Yang <libin.yang@xxxxxxxxx>
> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
> Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
Since the i915 side hook for SKL/BSW is missing on 3.12, applying this
blindly may be seen as a regression. So, please drop this for now.
(For SLE12, I'm going to provide an additional patch to paper over the
failure path.)
thanks,
Takashi
> ---
> sound/pci/hda/hda_intel.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
> index ab4b984ef607..c4ab8787273e 100644
> --- a/sound/pci/hda/hda_intel.c
> +++ b/sound/pci/hda/hda_intel.c
> @@ -622,8 +622,12 @@ enum {
> AZX_DCAPS_COUNT_LPIB_DELAY | AZX_DCAPS_PM_RUNTIME | \
> AZX_DCAPS_I915_POWERWELL)
>
> +#define AZX_DCAPS_INTEL_BRASWELL \
> + (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_I915_POWERWELL)
> +
> #define AZX_DCAPS_INTEL_SKYLAKE \
> - (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG)
> + (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
> + AZX_DCAPS_I915_POWERWELL)
>
> /* quirks for ATI SB / AMD Hudson */
> #define AZX_DCAPS_PRESET_ATI_SB \
> @@ -4119,7 +4123,7 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
> .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
> /* Braswell */
> { PCI_DEVICE(0x8086, 0x2284),
> - .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
> + .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
> /* ICH */
> { PCI_DEVICE(0x8086, 0x2668),
> .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
> --
> 2.5.0
>
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