ASoC: fsl_spdif: Add support for 22.05 kHz sample rate

Add support for 22.05 kHz sample rate for TX.

Signed-off-by: Matus Gajdos <matuszpd@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20230719163154.19492-1-matuszpd@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 015c370..95e6397 100644 (file)
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -514,6 +514,10 @@ static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
        int ret;
 
        switch (sample_rate) {
+       case 22050:
+               rate = SPDIF_TXRATE_22050;
+               csfs = IEC958_AES3_CON_FS_22050;
+               break;
        case 32000:
                rate = SPDIF_TXRATE_32000;
                csfs = IEC958_AES3_CON_FS_32000;
@@ -1422,7 +1426,7 @@ 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, 88200, 96000, 176400,
+       static const u32 rate[] = { 22050, 32000, 44100, 48000, 88200, 96000, 176400,
                                    192000, };
        bool is_sysclk = clk_is_match(clk, spdif_priv->sysclk);
        u64 rate_ideal, rate_actual, sub;
@@ -1483,7 +1487,7 @@ out:
 static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
                                enum spdif_txrate index)
 {
-       static const u32 rate[] = { 32000, 44100, 48000, 88200, 96000, 176400,
+       static const u32 rate[] = { 22050, 32000, 44100, 48000, 88200, 96000, 176400,
                                    192000, };
        struct platform_device *pdev = spdif_priv->pdev;
        struct device *dev = &pdev->dev;

diff --git a/sound/soc/fsl/fsl_spdif.h b/sound/soc/fsl/fsl_spdif.h
index 75b42a6..2bc1b10 100644 (file)
--- a/sound/soc/fsl/fsl_spdif.h
+++ b/sound/soc/fsl/fsl_spdif.h
@@ -175,7 +175,8 @@ enum spdif_gainsel {
 
 /* SPDIF tx rate */
 enum spdif_txrate {
-       SPDIF_TXRATE_32000 = 0,
+       SPDIF_TXRATE_22050 = 0,
+       SPDIF_TXRATE_32000,
        SPDIF_TXRATE_44100,
        SPDIF_TXRATE_48000,
        SPDIF_TXRATE_88200,
@@ -191,7 +192,8 @@ enum spdif_txrate {
 #define SPDIF_QSUB_SIZE                        (SPDIF_UBITS_SIZE / 8)
 
 
-#define FSL_SPDIF_RATES_PLAYBACK       (SNDRV_PCM_RATE_32000 | \
+#define FSL_SPDIF_RATES_PLAYBACK       (SNDRV_PCM_RATE_22050 | \
+                                        SNDRV_PCM_RATE_32000 | \
                                         SNDRV_PCM_RATE_44100 | \
                                         SNDRV_PCM_RATE_48000 | \
                                         SNDRV_PCM_RATE_88200 | \