ASoC: img-parallel-out: Add pm_runtime_get/put to set_fmt callback

Add pm_runtime_get_sync and pm_runtime_put calls to set_fmt callback
function. This fixes a bus error during boot when CONFIG_SUSPEND is
defined when this function gets called while the device is runtime
disabled and device registers are accessed while the clock is disabled.

Signed-off-by: Ed Blake <ed.blake@sondrel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/img/img-parallel-out.c b/sound/soc/img/img-parallel-out.c
index 23b0f0f..2fc8a63 100644 (file)
--- a/sound/soc/img/img-parallel-out.c
+++ b/sound/soc/img/img-parallel-out.c
@@ -164,9 +164,11 @@ static int img_prl_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
                return -EINVAL;
        }
 
+       pm_runtime_get_sync(prl->dev);
        reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
        reg = (reg & ~IMG_PRL_OUT_CTL_EDGE_MASK) | control_set;
        img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL);
+       pm_runtime_put(prl->dev);
 
        return 0;
 }