ASoC: fsl_spdif: Add support for higher sample rates

Add 88200Hz and 176400Hz sample rates support for TX.
Add 88200Hz, 176400Hz, 192000Hz sample rates support for RX.
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/1602557360-18795-1-git-send-email-shengjiu.wang@nxp.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/fsl/fsl_spdif.c

@@ -459,10 +459,18 @@ static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
 		rate = SPDIF_TXRATE_48000;
 		csfs = IEC958_AES3_CON_FS_48000;
 		break;
+	case 88200:
+		rate = SPDIF_TXRATE_88200;
+		csfs = IEC958_AES3_CON_FS_88200;
+		break;
 	case 96000:
 		rate = SPDIF_TXRATE_96000;
 		csfs = IEC958_AES3_CON_FS_96000;
 		break;
+	case 176400:
+		rate = SPDIF_TXRATE_176400;
+		csfs = IEC958_AES3_CON_FS_176400;
+		break;
 	case 192000:
 		rate = SPDIF_TXRATE_192000;
 		csfs = IEC958_AES3_CON_FS_192000;
@@ -857,7 +865,7 @@ static int fsl_spdif_rxrate_info(struct snd_kcontrol *kcontrol,
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 1;
 	uinfo->value.integer.min = 16000;
-	uinfo->value.integer.max = 96000;
+	uinfo->value.integer.max = 192000;
 
 	return 0;
 }
@@ -1175,7 +1183,8 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
 				struct clk *clk, u64 savesub,
 				enum spdif_txrate index, bool round)
 {
-	static const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 };
+	static const u32 rate[] = { 32000, 44100, 48000, 88200, 96000, 176400,
+				    192000, };
 	bool is_sysclk = clk_is_match(clk, spdif_priv->sysclk);
 	u64 rate_ideal, rate_actual, sub;
 	u32 arate;
@@ -1235,7 +1244,8 @@ static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
 static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
 				enum spdif_txrate index)
 {
-	static const u32 rate[] = { 32000, 44100, 48000, 96000, 192000 };
+	static const u32 rate[] = { 32000, 44100, 48000, 88200, 96000, 176400,
+				    192000, };
 	struct platform_device *pdev = spdif_priv->pdev;
 	struct device *dev = &pdev->dev;
 	u64 savesub = 100000, ret;

sound/soc/fsl/fsl_spdif.h

@@ -163,7 +163,9 @@ enum spdif_txrate {
 	SPDIF_TXRATE_32000 = 0,
 	SPDIF_TXRATE_44100,
 	SPDIF_TXRATE_48000,
+	SPDIF_TXRATE_88200,
 	SPDIF_TXRATE_96000,
+	SPDIF_TXRATE_176400,
 	SPDIF_TXRATE_192000,
 };
 #define SPDIF_TXRATE_MAX		(SPDIF_TXRATE_192000 + 1)
@@ -177,15 +179,20 @@ enum spdif_txrate {
 #define FSL_SPDIF_RATES_PLAYBACK	(SNDRV_PCM_RATE_32000 |	\
 					 SNDRV_PCM_RATE_44100 |	\
 					 SNDRV_PCM_RATE_48000 |	\
+					 SNDRV_PCM_RATE_88200 | \
 					 SNDRV_PCM_RATE_96000 |	\
+					 SNDRV_PCM_RATE_176400 | \
 					 SNDRV_PCM_RATE_192000)
 
 #define FSL_SPDIF_RATES_CAPTURE		(SNDRV_PCM_RATE_16000 | \
 					 SNDRV_PCM_RATE_32000 |	\
 					 SNDRV_PCM_RATE_44100 | \
 					 SNDRV_PCM_RATE_48000 |	\
+					 SNDRV_PCM_RATE_88200 | \
 					 SNDRV_PCM_RATE_64000 | \
-					 SNDRV_PCM_RATE_96000)
+					 SNDRV_PCM_RATE_96000 | \
+					 SNDRV_PCM_RATE_176400 | \
+					 SNDRV_PCM_RATE_192000)
 
 #define FSL_SPDIF_FORMATS_PLAYBACK	(SNDRV_PCM_FMTBIT_S16_LE | \
 					 SNDRV_PCM_FMTBIT_S20_3LE | \