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Commit 83f125e2 authored by Vinod Koul's avatar Vinod Koul Committed by Mark Brown
Browse files

ASoC: Intel: add support for configuring TDM slots for SSP 



With this machines can now configure TDM settings for SSP port using
set_tdm_slot API

Signed-off-by: default avatarPraveen Diwakar <praveen.diwakar@intel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 0b44e345

sound/soc/intel/atom/sst-atom-controls.c

+13 −0
Original line number Diff line number Diff line
@@ -774,6 +774,19 @@ int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable) 
	return ret;

}



int sst_fill_ssp_slot(struct snd_soc_dai *dai, unsigned int tx_mask,

		unsigned int rx_mask, int slots, int slot_width)

{

	struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);



	ctx->ssp_cmd.nb_slots = slots;

	ctx->ssp_cmd.active_tx_slot_map = tx_mask;

	ctx->ssp_cmd.active_rx_slot_map = rx_mask;

	ctx->ssp_cmd.nb_bits_per_slots = slot_width;



	return 0;

}



static int sst_get_frame_sync_polarity(struct snd_soc_dai *dai,

		unsigned int fmt)

{

sound/soc/intel/atom/sst-atom-controls.h

+2 −0
Original line number Diff line number Diff line
@@ -869,6 +869,8 @@ struct sst_enum { 
	SOC_DAPM_ENUM(SST_MUX_CTL_NAME(xpname, xinstance), \

			  SST_SSP_MUX_ENUM(xreg, xshift, xtexts))



int sst_fill_ssp_slot(struct snd_soc_dai *dai, unsigned int tx_mask,

				unsigned int rx_mask, int slots, int slot_width);

int sst_fill_ssp_config(struct snd_soc_dai *dai, unsigned int fmt);

void sst_fill_ssp_defaults(struct snd_soc_dai *dai);

sound/soc/intel/atom/sst-mfld-platform-pcm.c

+16 −0
Original line number Diff line number Diff line
@@ -464,6 +464,21 @@ static int sst_set_format(struct snd_soc_dai *dai, unsigned int fmt) 
	return ret;

}



static int sst_platform_set_ssp_slot(struct snd_soc_dai *dai,

			unsigned int tx_mask, unsigned int rx_mask,

			int slots, int slot_width) {

	int ret = 0;



	if (!dai->active)

		return ret;



	ret = sst_fill_ssp_slot(dai, tx_mask, rx_mask, slots, slot_width);

	if (ret < 0)

		dev_err(dai->dev, "sst_fill_ssp_slot failed..%d\n", ret);



	return ret;

}



static void sst_disable_ssp(struct snd_pcm_substream *substream,

			struct snd_soc_dai *dai)

{
@@ -490,6 +505,7 @@ static struct snd_soc_dai_ops sst_be_dai_ops = { 
	.startup = sst_enable_ssp,

	.hw_params = sst_be_hw_params,

	.set_fmt = sst_set_format,

	.set_tdm_slot = sst_platform_set_ssp_slot,

	.shutdown = sst_disable_ssp,

};