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ASoC: hdac_hdmi: Enable DP1.2 and all converters/pins 

Skylake supports 3 pin and 3 converter widgets. But by default
only one converter and pin widget are enabled. In skylake
platform the DP port is on a different port which is not enabled
by default. To enable playback on DP port, enable all pin and
converter widget by sending a vendor VERB for a vendor widget to
set required bits.

As we are enabling the DP support enable the DP1.2 feature as well.

Enabling DP1.2 and all widget changes are copied from patch_hdmi.c.

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Subhransu S. Prusty 2016-02-12 07:46:03 +05:30 committed by Mark Brown
parent 2428bca305
commit 211caab73b
1 changed files with 43 additions and 0 deletions
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43
sound/soc/codecs/hdac_hdmi.c
View File

@ -629,6 +629,46 @@ static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid)
return 0;
}
#define INTEL_VENDOR_NID 0x08
#define INTEL_GET_VENDOR_VERB 0xf81
#define INTEL_SET_VENDOR_VERB 0x781
#define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */
#define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */
static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdac)
{
unsigned int vendor_param;
vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
INTEL_GET_VENDOR_VERB, 0);
if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
return;
vendor_param |= INTEL_EN_ALL_PIN_CVTS;
vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
INTEL_SET_VENDOR_VERB, vendor_param);
if (vendor_param == -1)
return;
}
static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdac)
{
unsigned int vendor_param;
vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
INTEL_GET_VENDOR_VERB, 0);
if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
return;
/* enable DP1.2 mode */
vendor_param |= INTEL_EN_DP12;
vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
INTEL_SET_VENDOR_VERB, vendor_param);
if (vendor_param == -1)
return;
}
/*
* Parse all nodes and store the cvt/pin nids in array
* Add one time initialization for pin and cvt widgets
@ -641,6 +681,9 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev)
struct hdac_hdmi_priv *hdmi = edev->private_data;
int ret;
hdac_hdmi_skl_enable_all_pins(hdac);
hdac_hdmi_skl_enable_dp12(hdac);
num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid);
if (!nid || num_nodes <= 0) {
dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n");