---

yaml --- r: 216894 b: refs/heads/master c: ce3f054 h: refs/heads/master v: v3
git-mirror · Sep 27, 2010 · 7290412 · 7290412
1 parent 8d7462f
commit 7290412
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Showing 2 changed files with 9 additions and 6 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 813f6c5850521fec8917f61813be59691b60fcdf
+refs/heads/master: ce3f054bdd4e022fa0ee9d11a215ec32f1caa12d
diff --git a/trunk/arch/arm/plat-omap/mcbsp.c b/trunk/arch/arm/plat-omap/mcbsp.c
@@ -878,7 +878,7 @@ EXPORT_SYMBOL(omap_mcbsp_free);
 void omap_mcbsp_start(unsigned int id, int tx, int rx)
 {
 	struct omap_mcbsp *mcbsp;
-	int idle;
+	int enable_srg = 0;
 	u16 w;
 
 	if (!omap_mcbsp_check_valid_id(id)) {
@@ -893,10 +893,13 @@ void omap_mcbsp_start(unsigned int id, int tx, int rx)
 	mcbsp->rx_word_length = (MCBSP_READ_CACHE(mcbsp, RCR1) >> 5) & 0x7;
 	mcbsp->tx_word_length = (MCBSP_READ_CACHE(mcbsp, XCR1) >> 5) & 0x7;
 
-	idle = !((MCBSP_READ_CACHE(mcbsp, SPCR2) |
-			MCBSP_READ_CACHE(mcbsp, SPCR1)) & 1);
+	/* Only enable SRG, if McBSP is master */
+	w = MCBSP_READ_CACHE(mcbsp, PCR0);
+	if (w & (FSXM | FSRM | CLKXM | CLKRM))
+		enable_srg = !((MCBSP_READ_CACHE(mcbsp, SPCR2) |
+				MCBSP_READ_CACHE(mcbsp, SPCR1)) & 1);
 
-	if (idle) {
+	if (enable_srg) {
 		/* Start the sample generator */
 		w = MCBSP_READ_CACHE(mcbsp, SPCR2);
 		MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 6));
@@ -919,7 +922,7 @@ void omap_mcbsp_start(unsigned int id, int tx, int rx)
 	 */
 	udelay(500);
 
-	if (idle) {
+	if (enable_srg) {
 		/* Start frame sync */
 		w = MCBSP_READ_CACHE(mcbsp, SPCR2);
 		MCBSP_WRITE(mcbsp, SPCR2, w | (1 << 7));