ASoC: fsi: master clock selection become independent from platform flags

Current FSI driver is using platform information pointer,
but it is not good design for DT support.
This patch makes master clock selection
independent from platform information pointer.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/sh_fsi.h

@@ -47,8 +47,8 @@
 
 /* D:  clock selecter if master mode */
 #define SH_FSI_CLK_MASK		0x0000F000
-#define SH_FSI_CLK_EXTERNAL	(1 << 12)
-#define SH_FSI_CLK_CPG		(2 << 12) /* FSIxCK + FSI-DIV */
+#define SH_FSI_CLK_EXTERNAL	(0 << 12)
+#define SH_FSI_CLK_CPG		(1 << 12) /* FSIxCK + FSI-DIV */
 
 /*
  * set_rate return value

sound/soc/sh/fsi.c

@@ -264,6 +264,7 @@ struct fsi_priv {
 
 	int chan_num:16;
 	int clk_master:1;
+	int clk_cpg:1;
 	int spdif:1;
 
 	long rate;
@@ -1779,7 +1780,6 @@ static int fsi_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
 	struct fsi_priv *fsi = fsi_get_priv_frm_dai(dai);
 	set_rate_func set_rate = fsi_get_info_set_rate(fsi);
-	u32 flags = fsi_get_info_flags(fsi);
 	int ret;
 
 	/* set master/slave audio interface */
@@ -1802,16 +1802,12 @@ static int fsi_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 		if (set_rate)
 			dev_warn(dai->dev, "set_rate will be removed soon\n");
 
-		switch (flags & SH_FSI_CLK_MASK) {
-		case SH_FSI_CLK_EXTERNAL:
-			fsi_clk_init(dai->dev, fsi, 1, 1, 0,
-				     fsi_clk_set_rate_external);
-			break;
-		case SH_FSI_CLK_CPG:
+		if (fsi->clk_cpg)
 			fsi_clk_init(dai->dev, fsi, 0, 1, 1,
 				     fsi_clk_set_rate_cpg);
-			break;
-		}
+		else
+			fsi_clk_init(dai->dev, fsi, 1, 1, 0,
+				     fsi_clk_set_rate_external);
 	}
 
 	/* set format */
@@ -1989,6 +1985,9 @@ static void fsi_port_info_init(struct fsi_priv *fsi,
 {
 	if (info->flags & SH_FSI_FMT_SPDIF)
 		fsi->spdif = 1;
+
+	if (info->flags & SH_FSI_CLK_CPG)
+		fsi->clk_cpg = 1;
 }
 
 static void fsi_handler_init(struct fsi_priv *fsi,