diff options
| -rw-r--r-- | sound/soc/omap/mcbsp.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c index d7167932113..21dbb0532bc 100644 --- a/sound/soc/omap/mcbsp.c +++ b/sound/soc/omap/mcbsp.c @@ -548,6 +548,16 @@ void omap_mcbsp_free(struct omap_mcbsp *mcbsp) reg_cache = mcbsp->reg_cache; + /* + * Select CLKS source from internal source unconditionally before + * marking the McBSP port as free. + * If the external clock source via MCBSP_CLKS pin has been selected the + * system will refuse to enter idle if the CLKS pin source is not reset + * back to internal source. + */ + if (!cpu_class_is_omap1()) + omap2_mcbsp_set_clks_src(mcbsp, MCBSP_CLKS_PRCM_SRC); + spin_lock(&mcbsp->lock); if (mcbsp->free) dev_err(mcbsp->dev, "McBSP%d was not reserved\n", mcbsp->id); |