CLKR/FSR mux is only possible on port 1.
Make sure that we only change the mux if the call is made with the
correct mcbsp device.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
arch/arm/mach-omap2/mcbsp.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index 829f4c7..269765c 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -38,8 +38,13 @@
static int omap2_mcbsp1_mux_rx_clk(struct device *dev, const char *signal,
const char *src)
{
+ struct omap_mcbsp *mcbsp = dev_get_drvdata(dev);
u32 v;
+ /* Only McBSP1 have 6 pin configuration (CLKR/FSR source selectable) */
+ if (mcbsp->id != 0)
+ return -EINVAL;
+
v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
if (!strcmp(signal, "clkr")) {
--
1.7.8.1
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