Unverified Commit 139c7feb authored by Kai Vehmanen's avatar Kai Vehmanen Committed by Mark Brown
Browse files

ASoC: SOF: Intel: add support for snd-hda-codec-hdmi 



Add support to implement HDMI/DP audio by using the common
snd-hda-codec-hdmi driver.

Change of codec driver affects user-space as the two
drivers expose different mixer controls. A new kernel
module option "use_common_hdmi" is added to user-space
to indicate which interface should be used. The default
driver can be selected via a Kconfig option.

Signed-off-by: default avatarKai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: default avatarTakashi Iwai <tiwai@suse.de>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191029134017.18901-6-kai.vehmanen@linux.intel.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 0f163110

sound/soc/sof/intel/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -299,6 +299,16 @@ config SND_SOC_SOF_HDA_ALWAYS_ENABLE_DMI_L1 
	  Say Y if you want to enable DMI Link L1

	  If unsure, select "N".



config SND_SOC_SOF_HDA_COMMON_HDMI_CODEC

	bool "SOF common HDA HDMI codec driver"

	depends on SND_SOC_SOF_HDA_LINK

	depends on SND_HDA_CODEC_HDMI

	help

	  This adds support for HDMI audio by using the common HDA

	  HDMI/DisplayPort codec driver.

	  Say Y if you want to use the common codec driver with SOF.

	  If unsure select "Y".



endif ## SND_SOC_SOF_HDA_COMMON



config SND_SOC_SOF_HDA_LINK_BASELINE

sound/soc/sof/intel/hda-codec.c

+18 −4
Original line number Diff line number Diff line
@@ -84,6 +84,8 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address) 
{

#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC)

	struct hdac_hda_priv *hda_priv;

	struct snd_soc_acpi_mach_params *mach_params = NULL;

	struct snd_sof_pdata *pdata = sdev->pdata;

#endif

	struct hda_bus *hbus = sof_to_hbus(sdev);

	struct hdac_device *hdev;
@@ -113,8 +115,19 @@ static int hda_codec_probe(struct snd_sof_dev *sdev, int address) 
	if (ret < 0)

		return ret;



	/* use legacy bus only for HDA codecs, idisp uses ext bus */

	if ((resp & 0xFFFF0000) != IDISP_VID_INTEL) {

	if (pdata->machine)

		mach_params = (struct snd_soc_acpi_mach_params *)

			&pdata->machine->mach_params;



	if ((resp & 0xFFFF0000) == IDISP_VID_INTEL)

		hda_priv->need_display_power = true;



	/*

	 * if common HDMI codec driver is not used, codec load

	 * is skipped here and hdac_hdmi is used instead

	 */

	if ((mach_params && mach_params->common_hdmi_codec_drv) ||

	    (resp & 0xFFFF0000) != IDISP_VID_INTEL) {

		hdev->type = HDA_DEV_LEGACY;

		hda_codec_load_module(&hda_priv->codec);

	}
@@ -155,7 +168,8 @@ int hda_codec_probe_bus(struct snd_sof_dev *sdev) 
}

EXPORT_SYMBOL(hda_codec_probe_bus);



#if IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)

#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) || \

	IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)



void hda_codec_i915_get(struct snd_sof_dev *sdev)

{
@@ -204,6 +218,6 @@ int hda_codec_i915_exit(struct snd_sof_dev *sdev) 
}

EXPORT_SYMBOL(hda_codec_i915_exit);



#endif /* CONFIG_SND_SOC_HDAC_HDMI */

#endif



MODULE_LICENSE("Dual BSD/GPL");

sound/soc/sof/intel/hda.c

+6 −0
Original line number Diff line number Diff line
@@ -53,6 +53,11 @@ MODULE_PARM_DESC(use_msi, "SOF HDA use PCI MSI mode"); 
static int hda_dmic_num = -1;

module_param_named(dmic_num, hda_dmic_num, int, 0444);

MODULE_PARM_DESC(dmic_num, "SOF HDA DMIC number");



static bool hda_codec_use_common_hdmi =

	IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_COMMON_HDMI_CODEC);

module_param_named(use_common_hdmi, hda_codec_use_common_hdmi, bool, 0444);

MODULE_PARM_DESC(use_common_hdmi, "SOF HDA use common HDMI codec driver");

#endif



static const struct hda_dsp_msg_code hda_dsp_rom_msg[] = {
@@ -459,6 +464,7 @@ static int hda_init_caps(struct snd_sof_dev *sdev) 
			&pdata->machine->mach_params;

		mach_params->codec_mask = bus->codec_mask;

		mach_params->platform = dev_name(sdev->dev);

		mach_params->common_hdmi_codec_drv = hda_codec_use_common_hdmi;

	}



	/* create codec instances */

sound/soc/sof/intel/hda.h

+4 −2
Original line number Diff line number Diff line
@@ -577,7 +577,9 @@ void hda_codec_jack_check(struct snd_sof_dev *sdev); 


#endif /* CONFIG_SND_SOC_SOF_HDA */



#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) && IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI)

#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) && \

	(IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI) || \

	 IS_ENABLED(CONFIG_SND_SOC_HDAC_HDMI))



void hda_codec_i915_get(struct snd_sof_dev *sdev);

void hda_codec_i915_put(struct snd_sof_dev *sdev);
@@ -591,7 +593,7 @@ static inline void hda_codec_i915_put(struct snd_sof_dev *sdev) { } 
static inline int hda_codec_i915_init(struct snd_sof_dev *sdev) { return 0; }

static inline int hda_codec_i915_exit(struct snd_sof_dev *sdev) { return 0; }



#endif /* CONFIG_SND_SOC_SOF_HDA && CONFIG_SND_SOC_HDAC_HDMI */

#endif



/*

 * Trace Control.

CRA Git | Maintained and supported by SUSTech CRA and CCSE