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-rw-r--r--sound/soc/omap/omap-mcbsp.c41
-rw-r--r--sound/soc/omap/omap-mcbsp.h4
2 files changed, 45 insertions, 0 deletions
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 0e173e7e0c3..3341f49402c 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -512,6 +512,40 @@ static int omap_mcbsp_dai_set_clks_src(struct omap_mcbsp_data *mcbsp_data,
return 0;
}
+static int omap_mcbsp_dai_set_rcvr_src(struct omap_mcbsp_data *mcbsp_data,
+ int clk_id)
+{
+ int sel_bit, set = 0;
+ u16 reg = OMAP2_CONTROL_DEVCONF0;
+
+ if (cpu_class_is_omap1())
+ return -EINVAL; /* TODO: Can this be implemented for OMAP1? */
+ if (mcbsp_data->bus_id != 0)
+ return -EINVAL;
+
+ switch (clk_id) {
+ case OMAP_MCBSP_CLKR_SRC_CLKX:
+ set = 1;
+ case OMAP_MCBSP_CLKR_SRC_CLKR:
+ sel_bit = 3;
+ break;
+ case OMAP_MCBSP_FSR_SRC_FSX:
+ set = 1;
+ case OMAP_MCBSP_FSR_SRC_FSR:
+ sel_bit = 4;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (set)
+ omap_ctrl_writel(omap_ctrl_readl(reg) | (1 << sel_bit), reg);
+ else
+ omap_ctrl_writel(omap_ctrl_readl(reg) & ~(1 << sel_bit), reg);
+
+ return 0;
+}
+
static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
int clk_id, unsigned int freq,
int dir)
@@ -534,6 +568,13 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
case OMAP_MCBSP_SYSCLK_CLKR_EXT:
regs->pcr0 |= SCLKME;
break;
+
+ case OMAP_MCBSP_CLKR_SRC_CLKR:
+ case OMAP_MCBSP_CLKR_SRC_CLKX:
+ case OMAP_MCBSP_FSR_SRC_FSR:
+ case OMAP_MCBSP_FSR_SRC_FSX:
+ err = omap_mcbsp_dai_set_rcvr_src(mcbsp_data, clk_id);
+ break;
default:
err = -ENODEV;
}
diff --git a/sound/soc/omap/omap-mcbsp.h b/sound/soc/omap/omap-mcbsp.h
index c8147aace81..647d2f981ab 100644
--- a/sound/soc/omap/omap-mcbsp.h
+++ b/sound/soc/omap/omap-mcbsp.h
@@ -32,6 +32,10 @@ enum omap_mcbsp_clksrg_clk {
OMAP_MCBSP_SYSCLK_CLK, /* Internal ICLK */
OMAP_MCBSP_SYSCLK_CLKX_EXT, /* External CLKX pin */
OMAP_MCBSP_SYSCLK_CLKR_EXT, /* External CLKR pin */
+ OMAP_MCBSP_CLKR_SRC_CLKR, /* CLKR from CLKR pin */
+ OMAP_MCBSP_CLKR_SRC_CLKX, /* CLKR from CLKX pin */
+ OMAP_MCBSP_FSR_SRC_FSR, /* FSR from FSR pin */
+ OMAP_MCBSP_FSR_SRC_FSX, /* FSR from FSX pin */
};
/* McBSP dividers */