diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c index e5a227d6c2c7..219b197bf1a6 100644 --- a/sound/soc/rockchip/rockchip_i2s.c +++ b/sound/soc/rockchip/rockchip_i2s.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -55,6 +56,9 @@ struct rk_i2s_dev { unsigned int bclk_fs; }; +/* txctrl/rxctrl lock */ +static DEFINE_SPINLOCK(lock); + static int i2s_runtime_suspend(struct device *dev) { struct rk_i2s_dev *i2s = dev_get_drvdata(dev); @@ -96,6 +100,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on) unsigned int val = 0; int retry = 10; + spin_lock(&lock); if (on) { regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_TDE_ENABLE, I2S_DMACR_TDE_ENABLE); @@ -136,6 +141,7 @@ static void rockchip_snd_txctrl(struct rk_i2s_dev *i2s, int on) } } } + spin_unlock(&lock); } static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) @@ -143,6 +149,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) unsigned int val = 0; int retry = 10; + spin_lock(&lock); if (on) { regmap_update_bits(i2s->regmap, I2S_DMACR, I2S_DMACR_RDE_ENABLE, I2S_DMACR_RDE_ENABLE); @@ -183,6 +190,7 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on) } } } + spin_unlock(&lock); } static int rockchip_i2s_set_fmt(struct snd_soc_dai *cpu_dai,