MLK-9684-3: ASoC: imx-si476x: SRCK and SRFS is used for fm in imx6sx

Configure the aumux port to output SRCK and SRFS from STCK and STFS of internal port when use the SYN mode. Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com> (cherry picked from commit f4428f56)

MLK-9684-3: ASoC: imx-si476x: SRCK and SRFS is used for fm in imx6sx
bf3a8726 · Shengjiu Wang · Nitin Garg · 45567b25 · bf3a8726
Commit bf3a8726 authored Oct 13, 2014 by Shengjiu Wang Committed by Nitin Garg Jan 15, 2015
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imx-si476x.c sound/soc/fsl/imx-si476x.c +10 -0

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--- a/sound/soc/fsl/imx-si476x.c
+++ b/sound/soc/fsl/imx-si476x.c
@@ -32,6 +32,16 @@ static int imx_audmux_config(int slave, int master)
 	pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(slave);
 	imx_audmux_v2_configure_port(master, ptcr, pdcr);

+	/*
+	 * According to RM, RCLKDIR and SYN should not be changed at same time.
+	 * So separate to two step for configuring this port.
+	 */
+	ptcr |= IMX_AUDMUX_V2_PTCR_RFSDIR |
+		IMX_AUDMUX_V2_PTCR_RFSEL(slave) |
+		IMX_AUDMUX_V2_PTCR_RCLKDIR |
+		IMX_AUDMUX_V2_PTCR_RCSEL(slave);
+	imx_audmux_v2_configure_port(master, ptcr, pdcr);
+
 	ptcr = IMX_AUDMUX_V2_PTCR_SYN;
 	pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(master);
 	imx_audmux_v2_configure_port(slave, ptcr, pdcr);