ASoC: renesas: rz-ssi: Add support for 32 bits sample width

Add support for 32 bits sample format width for RZ/G2L SoCs.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20251114075856.4751-6-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/renesas/rz-ssi.c b/sound/soc/renesas/rz-ssi.c
index 3ec7c9875b431b34a804fc671bb88c9b58613414..5909778a6a70b298c6ae4d8f77beee9723313774 100644 (file)
--- a/sound/soc/renesas/rz-ssi.c
+++ b/sound/soc/renesas/rz-ssi.c
@@ -75,7 +75,8 @@
 #define PREALLOC_BUFFER_MAX    (SZ_32K)
 
 #define SSI_RATES              SNDRV_PCM_RATE_8000_48000 /* 8k-48kHz */
-#define SSI_FMTS               (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
+#define SSI_FMTS               (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE | \
+                                SNDRV_PCM_FMTBIT_S32_LE)
 #define SSI_CHAN_MIN           2
 #define SSI_CHAN_MAX           2
 #define SSI_FIFO_DEPTH         32
@@ -295,7 +296,7 @@ static int rz_ssi_clk_setup(struct rz_ssi_priv *ssi, unsigned int rate,
        }
 
        /*
-        * DWL: Data Word Length = {16, 24} bits
+        * DWL: Data Word Length = {16, 24, 32} bits
         * SWL: System Word Length = 32 bits
         */
        ssicr |= SSICR_CKDV(clk_ckdv);
@@ -306,6 +307,9 @@ static int rz_ssi_clk_setup(struct rz_ssi_priv *ssi, unsigned int rate,
        case 24:
                ssicr |= SSICR_DWL(5) | SSICR_PDTA;
                break;
+       case 32:
+               ssicr |= SSICR_DWL(6);
+               break;
        default:
                dev_err(ssi->dev, "Not support %u data width",
                        ssi->hw_params_cache.sample_width);
@@ -1016,7 +1020,7 @@ static int rz_ssi_dai_hw_params(struct snd_pcm_substream *substream,
        unsigned int rate = params_rate(params);
        int ret;
 
-       if (!(sample_bits == 16 || sample_bits == 24)) {
+       if (!(sample_bits == 16 || sample_bits == 24 || sample_bits == 32)) {
                dev_err(ssi->dev, "Unsupported sample width: %d\n",
                        sample_bits);
                return -EINVAL;