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| author | Subhransu S. Prusty <subhransu.s.prusty@intel.com> | 2016-02-12 02:16:03 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-02-15 20:54:03 (GMT) |
| commit | 211caab73b20dcc91ac103db0f68fe2388120d59 (patch) | |
| tree | 26fc94b4a18a80f711dd2a4d6d1f06f7151cac94 /sound/soc/codecs/hdac_hdmi.c | |
| parent | 2428bca305e082885e08e7f3399db616daf3a51a (diff) | |
| download | linux-211caab73b20dcc91ac103db0f68fe2388120d59.tar.xz | |
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>
Diffstat (limited to 'sound/soc/codecs/hdac_hdmi.c')
| -rw-r--r-- | sound/soc/codecs/hdac_hdmi.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index d22fa6b..b2e5e54 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -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"); |