ASoC: rsnd: don't use runtime->sample_bits

Current rsnd driver is judging 16bit/24bit data by using
runtime->sample_bits, but it is indicating physical size,
not format size. This is confusable code.
This patch uses snd_pcm_format_width() to be more correct code.
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sh/rcar/core.c

@@ -274,10 +274,10 @@ u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 	struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 	struct device *dev = rsnd_priv_to_dev(priv);
 
-	switch (runtime->sample_bits) {
+	switch (snd_pcm_format_width(runtime->format)) {
 	case 16:
 		return 8 << 16;
-	case 32:
+	case 24:
 		return 0 << 16;
 	}
 
@@ -327,7 +327,7 @@ u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 	}
 
 	/* Non target mod or 24bit data needs normal DALIGN */
-	if ((runtime->sample_bits != 16) ||
+	if ((snd_pcm_format_width(runtime->format) != 16) ||
 	    (mod != target))
 		return 0x76543210;
 	/* Target mod needs inverted DALIGN when 16bit */
@@ -362,12 +362,8 @@ u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
 	 * HW    24bit data is located as 0x******00
 	 *
 	 */
-	switch (runtime->sample_bits) {
-	case 16:
+	if (snd_pcm_format_width(runtime->format) == 16)
 		return 0;
-	case 32:
-		break;
-	}
 
 	for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
 		tmod = rsnd_io_to_mod(io, mods[i]);

sound/soc/sh/rcar/ssi.c

@@ -370,11 +370,11 @@ static void rsnd_ssi_config_init(struct rsnd_mod *mod,
 	if (rsnd_io_is_play(io))
 		cr_own |= TRMD;
 
-	switch (runtime->sample_bits) {
+	switch (snd_pcm_format_width(runtime->format)) {
 	case 16:
 		cr_own |= DWL_16;
 		break;
-	case 32:
+	case 24:
 		cr_own |= DWL_24;
 		break;
 	}
@@ -677,11 +677,8 @@ static void __rsnd_ssi_interrupt(struct rsnd_mod *mod,
 				   rsnd_ssi_pointer_offset(mod, io, 0));
 		int shift = 0;
 
-		switch (runtime->sample_bits) {
-		case 32:
+		if (snd_pcm_format_width(runtime->format) == 24)
 			shift = 8;
-			break;
-		}
 
 		/*
 		 * 8/16/32 data can be assesse to TDR/RDR register