commit 3dd22a37aae57243b6e8dfedcc03c0fc02d469e6
author Dani Krishna Mohan <krishna.md@samsung.com> Wed Sep 11 16:38:48 2013 +0530
committer Tom Rini <trini@ti.com> Tue Sep 24 09:10:33 2013 -0400
tree 70bdac70d8a5369ef54bd0f7152ababa9cbe1b5a
parent b7006a7f5edf7385956658b5196df266a5dc2cc6

ARM: Added I2S0 clocks for audio

This patch makes the necessary changes for making use of
I2S0 channel instead of I2S1 channel on smdk board. This
changes are done to maintain the uniformity to use I2S0 channel.

Signed-off-by: Dani Krishna Mohan <krishna.md@samsung.com>

drivers/sound/samsung-i2s.c

diff --git a/drivers/sound/samsung-i2s.c b/drivers/sound/samsung-i2s.c
index 49921e5..30d1470 100644
--- a/drivers/sound/samsung-i2s.c
+++ b/drivers/sound/samsung-i2s.c
@@ -67,7 +67,6 @@
 		con &= ~CON_TXCH_PAUSE;
 
 	} else {
-
 		con |=  CON_TXCH_PAUSE;
 		con &= ~CON_ACTIVE;
 	}
@@ -172,7 +171,7 @@
 		break;
 	default:
 		debug("%s: Invalid format priority [0x%x]\n", __func__,
-			(fmt & SND_SOC_DAIFMT_FORMAT_MASK));
+		      (fmt & SND_SOC_DAIFMT_FORMAT_MASK));
 		return -1;
 	}
 
@@ -191,7 +190,7 @@
 		break;
 	default:
 		debug("%s: Invalid clock ploarity input [0x%x]\n", __func__,
-			(fmt & SND_SOC_DAIFMT_INV_MASK));
+		      (fmt & SND_SOC_DAIFMT_INV_MASK));
 		return -1;
 	}
 
@@ -209,7 +208,7 @@
 		break;
 	default:
 		debug("%s: Invalid master selection [0x%x]\n", __func__,
-			(fmt & SND_SOC_DAIFMT_MASTER_MASK));
+		      (fmt & SND_SOC_DAIFMT_MASTER_MASK));
 		return -1;
 	}
 
@@ -250,7 +249,7 @@
 		break;
 	default:
 		debug("%s: Invalid sample size input [0x%x]\n",
-			__func__, blc);
+		      __func__, blc);
 		return -1;
 	}
 	writel(mod, &i2s_reg->mod);
@@ -313,11 +312,22 @@
 	}
 
 	/* Select Clk Source for Audio1 */
-	set_i2s_clk_source();
+	ret = set_i2s_clk_source(pi2s_tx->id);
+	if (ret == -1) {
+		debug("%s: unsupported clock for i2s-%d\n", __func__,
+		      pi2s_tx->id);
+		return -1;
+	}
 
 	/* Set Prescaler to get MCLK */
-	set_i2s_clk_prescaler(pi2s_tx->audio_pll_clk,
-				(pi2s_tx->samplingrate * (pi2s_tx->rfs)));
+	ret = set_i2s_clk_prescaler(pi2s_tx->audio_pll_clk,
+			      (pi2s_tx->samplingrate * (pi2s_tx->rfs)),
+			      pi2s_tx->id);
+	if (ret == -1) {
+		debug("%s: unsupported prescalar for i2s-%d\n", __func__,
+		      pi2s_tx->id);
+		return -1;
+	}
 
 	/* Configure I2s format */
 	ret = i2s_set_fmt(i2s_reg, (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |