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Commit 8a8a60a5 authored by Phani Kumar Uppalapati's avatar Phani Kumar Uppalapati
Browse files

ASoC: msm8996: Add support for multiple sample rates for slimbus_0_rx 



Currently SLIMBUS_0_RX backend only supports sample rates 48KHz/
96KHz/192KHz. Add support for other sample rates including 44.1KHz
fractional sample rate so that it can render audio samples to
CODEC without any resampling.

Change-Id: I7a7736894589b484c69aa438f2e81144319ba0ce
Signed-off-by: default avatarPhani Kumar Uppalapati <phaniu@codeaurora.org>
parent 266cc964

sound/soc/msm/msm8996.c

+32 −2
Original line number Diff line number Diff line
@@ -102,7 +102,8 @@ static char const *hdmi_rx_ch_text[] = {"Two", "Three", "Four", "Five", 
static char const *rx_bit_format_text[] = {"S16_LE", "S24_LE"};

static char const *slim5_rx_bit_format_text[] = {"S16_LE", "S24_LE"};

static char const *slim0_rx_sample_rate_text[] = {"KHZ_48", "KHZ_96",

					"KHZ_192"};

					"KHZ_192", "KHZ_44P1", "KHZ_8",

					"KHZ_16", "KHZ_32"};

static char const *slim5_rx_sample_rate_text[] = {"KHZ_48", "KHZ_96",

						  "KHZ_192", "KHZ_44P1"};

static const char *const proxy_rx_ch_text[] = {"One", "Two", "Three", "Four",
@@ -658,6 +659,22 @@ static int slim0_rx_sample_rate_get(struct snd_kcontrol *kcontrol, 
	int sample_rate_val = 0;



	switch (slim0_rx_sample_rate) {

	case SAMPLING_RATE_32KHZ:

		sample_rate_val = 6;

		break;



	case SAMPLING_RATE_16KHZ:

		sample_rate_val = 5;

		break;



	case SAMPLING_RATE_8KHZ:

		sample_rate_val = 4;

		break;



	case SAMPLING_RATE_44P1KHZ:

		sample_rate_val = 3;

		break;



	case SAMPLING_RATE_192KHZ:

		sample_rate_val = 2;

		break;
@@ -686,6 +703,18 @@ static int slim0_rx_sample_rate_put(struct snd_kcontrol *kcontrol, 
		 ucontrol->value.integer.value[0]);



	switch (ucontrol->value.integer.value[0]) {

	case 6:

		slim0_rx_sample_rate = SAMPLING_RATE_32KHZ;

		break;

	case 5:

		slim0_rx_sample_rate = SAMPLING_RATE_16KHZ;

		break;

	case 4:

		slim0_rx_sample_rate = SAMPLING_RATE_8KHZ;

		break;

	case 3:

		slim0_rx_sample_rate = SAMPLING_RATE_44P1KHZ;

		break;

	case 2:

		slim0_rx_sample_rate = SAMPLING_RATE_192KHZ;

		break;
@@ -1330,7 +1359,8 @@ static const struct soc_enum msm_snd_enum[] = { 
	SOC_ENUM_SINGLE_EXT(8, slim0_tx_ch_text),

	SOC_ENUM_SINGLE_EXT(7, hdmi_rx_ch_text),

	SOC_ENUM_SINGLE_EXT(2, rx_bit_format_text),

	SOC_ENUM_SINGLE_EXT(3, slim0_rx_sample_rate_text),

	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(slim0_rx_sample_rate_text),

			    slim0_rx_sample_rate_text),

	SOC_ENUM_SINGLE_EXT(8, proxy_rx_ch_text),

	SOC_ENUM_SINGLE_EXT(3, hdmi_rx_sample_rate_text),

	SOC_ENUM_SINGLE_EXT(4, slim5_rx_sample_rate_text),