Unverified Commit aa3fce5c authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Mark Brown
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ASoC: fsl_spdif: Add kctl for configuring TX validity bit 



Add one kctl for configuring TX validity bit from user
space.

The type of this kctl is boolean:
on - Outgoing validity always set
off - Outgoing validity always clear

Signed-off-by: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1594112066-31297-3-git-send-email-shengjiu.wang@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 055b0821

sound/soc/fsl/fsl_spdif.c

+43 −4
Original line number Diff line number Diff line
@@ -776,7 +776,7 @@ static int fsl_spdif_vbit_info(struct snd_kcontrol *kcontrol, 
}



/* Get valid good bit from interrupt status register */

static int fsl_spdif_vbit_get(struct snd_kcontrol *kcontrol,

static int fsl_spdif_rx_vbit_get(struct snd_kcontrol *kcontrol,

				 struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
@@ -791,6 +791,35 @@ static int fsl_spdif_vbit_get(struct snd_kcontrol *kcontrol, 
	return 0;

}



static int fsl_spdif_tx_vbit_get(struct snd_kcontrol *kcontrol,

				 struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);

	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);

	struct regmap *regmap = spdif_priv->regmap;

	u32 val;



	regmap_read(regmap, REG_SPDIF_SCR, &val);

	val = (val & SCR_VAL_MASK) >> SCR_VAL_OFFSET;

	val = 1 - val;

	ucontrol->value.integer.value[0] = val;



	return 0;

}



static int fsl_spdif_tx_vbit_put(struct snd_kcontrol *kcontrol,

				 struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);

	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);

	struct regmap *regmap = spdif_priv->regmap;

	u32 val = (1 - ucontrol->value.integer.value[0]) << SCR_VAL_OFFSET;



	regmap_update_bits(regmap, REG_SPDIF_SCR, SCR_VAL_MASK, val);



	return 0;

}



/* DPLL lock information */

static int fsl_spdif_rxrate_info(struct snd_kcontrol *kcontrol,

				struct snd_ctl_elem_info *uinfo)
@@ -948,11 +977,21 @@ static struct snd_kcontrol_new fsl_spdif_ctrls[] = { 
	/* Valid bit error controller */

	{

		.iface = SNDRV_CTL_ELEM_IFACE_PCM,

		.name = "IEC958 V-Bit Errors",

		.name = "IEC958 RX V-Bit Errors",

		.access = SNDRV_CTL_ELEM_ACCESS_READ |

			SNDRV_CTL_ELEM_ACCESS_VOLATILE,

		.info = fsl_spdif_vbit_info,

		.get = fsl_spdif_vbit_get,

		.get = fsl_spdif_rx_vbit_get,

	},

	{

		.iface = SNDRV_CTL_ELEM_IFACE_PCM,

		.name = "IEC958 TX V-Bit",

		.access = SNDRV_CTL_ELEM_ACCESS_READ |

			SNDRV_CTL_ELEM_ACCESS_WRITE |

			SNDRV_CTL_ELEM_ACCESS_VOLATILE,

		.info = fsl_spdif_vbit_info,

		.get = fsl_spdif_tx_vbit_get,

		.put = fsl_spdif_tx_vbit_put,

	},

	/* DPLL lock info get controller */

	{