asoc: codecs: Synchronize fs gen sequence updates
Synchronize the bolero fs gen sequence updates
in order to avoid race conditions.
Change-Id: Idb95dcf1d5f5f4d24ab507ccd221d399a6b5a021
Signed-off-by: Aditya Bavanari <abavanar@codeaurora.org>
diff --git a/asoc/codecs/bolero/bolero-clk-rsc.c b/asoc/codecs/bolero/bolero-clk-rsc.c
index b80a267..b8ed664 100644
--- a/asoc/codecs/bolero/bolero-clk-rsc.c
+++ b/asoc/codecs/bolero/bolero-clk-rsc.c
@@ -32,6 +32,7 @@
struct bolero_clk_rsc {
struct device *dev;
struct mutex rsc_clk_lock;
+ struct mutex fs_gen_lock;
struct clk *clk[MAX_CLK];
int clk_cnt[MAX_CLK];
int reg_seq_en_cnt;
@@ -422,6 +423,7 @@
pr_err("%s: regmap is null\n", __func__);
return;
}
+ mutex_lock(&priv->fs_gen_lock);
if (enable) {
if (priv->reg_seq_en_cnt++ == 0) {
for (i = 0; i < (priv->num_fs_reg * 2); i += 2) {
@@ -439,6 +441,7 @@
dev_err_ratelimited(priv->dev, "%s: req_seq_cnt: %d is already disabled\n",
__func__, priv->reg_seq_en_cnt);
priv->reg_seq_en_cnt = 0;
+ mutex_unlock(&priv->fs_gen_lock);
return;
}
if (--priv->reg_seq_en_cnt == 0) {
@@ -451,6 +454,7 @@
}
}
}
+ mutex_unlock(&priv->fs_gen_lock);
}
EXPORT_SYMBOL(bolero_clk_rsc_fs_gen_request);
@@ -665,6 +669,7 @@
priv->dev = &pdev->dev;
priv->dev_up = true;
mutex_init(&priv->rsc_clk_lock);
+ mutex_init(&priv->fs_gen_lock);
dev_set_drvdata(&pdev->dev, priv);
err:
@@ -680,6 +685,7 @@
if (!priv)
return -EINVAL;
mutex_destroy(&priv->rsc_clk_lock);
+ mutex_destroy(&priv->fs_gen_lock);
return 0;
}