diff options
| author | Tero Kristo <t-kristo@ti.com> | 2018-04-12 11:23:15 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-04-12 15:00:54 +0300 |
| commit | 573eda59c772d11fc2b56d525dfb698b0f87ddb3 (patch) | |
| tree | 432e125ae670884b2482c966494841b07b4ccdd4 /sound | |
| parent | 445bb423f6a3c50788529a33b82e45148001e855 (diff) | |
| download | linux-573eda59c772d11fc2b56d525dfb698b0f87ddb3.tar.xz | |
ASoC: dmic: Fix clock parenting
In 4.16 the clock hierarchy got changed by
a5c82a09d876 ARM: dts: omap4: add clkctrl nodes
The fck of dmic is no longer a mux clock, it's parent is.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org # 4.16+
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/omap/omap-dmic.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c index 09db2aec12a3..b2f5d2fa354d 100644 --- a/sound/soc/omap/omap-dmic.c +++ b/sound/soc/omap/omap-dmic.c @@ -281,7 +281,7 @@ static int omap_dmic_dai_trigger(struct snd_pcm_substream *substream, static int omap_dmic_select_fclk(struct omap_dmic *dmic, int clk_id, unsigned int freq) { - struct clk *parent_clk; + struct clk *parent_clk, *mux; char *parent_clk_name; int ret = 0; @@ -329,14 +329,21 @@ static int omap_dmic_select_fclk(struct omap_dmic *dmic, int clk_id, return -ENODEV; } + mux = clk_get_parent(dmic->fclk); + if (IS_ERR(mux)) { + dev_err(dmic->dev, "can't get fck mux parent\n"); + clk_put(parent_clk); + return -ENODEV; + } + mutex_lock(&dmic->mutex); if (dmic->active) { /* disable clock while reparenting */ pm_runtime_put_sync(dmic->dev); - ret = clk_set_parent(dmic->fclk, parent_clk); + ret = clk_set_parent(mux, parent_clk); pm_runtime_get_sync(dmic->dev); } else { - ret = clk_set_parent(dmic->fclk, parent_clk); + ret = clk_set_parent(mux, parent_clk); } mutex_unlock(&dmic->mutex); @@ -349,6 +356,7 @@ static int omap_dmic_select_fclk(struct omap_dmic *dmic, int clk_id, dmic->fclk_freq = freq; err_busy: + clk_put(mux); clk_put(parent_clk); return ret; |