diff options
Diffstat (limited to 'sound/soc/samsung/i2s.c')
| -rw-r--r-- | sound/soc/samsung/i2s.c | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index ab471d550d17..9722940da6a4 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -88,12 +88,6 @@ struct samsung_i2s_priv { struct platform_device *pdev; struct platform_device *pdev_sec; - /* Memory mapped SFR region */ - void __iomem *addr; - - /* Spinlock protecting access to the device's registers */ - spinlock_t lock; - /* Lock for cross interface checks */ spinlock_t pcm_lock; @@ -122,6 +116,15 @@ struct samsung_i2s_priv { /* The clock provider's data */ struct clk *clk_table[3]; struct clk_onecell_data clk_data; + + /* Spinlock protecting member fields below */ + spinlock_t lock; + + /* Memory mapped SFR region */ + void __iomem *addr; + + /* A flag indicating the I2S slave mode operation */ + bool slave_mode; }; /* Returns true if this is the 'overlay' stereo DAI */ @@ -130,15 +133,6 @@ static inline bool is_secondary(struct i2s_dai *i2s) return i2s->drv->id == SAMSUNG_I2S_ID_SECONDARY; } -/* If operating in SoC-Slave mode */ -static inline bool is_slave(struct i2s_dai *i2s) -{ - struct samsung_i2s_priv *priv = i2s->priv; - - u32 mod = readl(priv->addr + I2SMOD); - return (mod & (1 << priv->variant_regs->mss_off)) ? true : false; -} - /* If this interface of the controller is transmitting data */ static inline bool tx_active(struct i2s_dai *i2s) { @@ -715,6 +709,7 @@ static int i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) mod &= ~(sdf_mask | lrp_rlow | mod_slave); mod |= tmp; writel(mod, priv->addr + I2SMOD); + priv->slave_mode = (mod & mod_slave); spin_unlock_irqrestore(&priv->lock, flags); pm_runtime_put(dai->dev); @@ -917,7 +912,7 @@ static int config_setup(struct i2s_dai *i2s) set_rfs(i2s, rfs); /* Don't bother with PSR in Slave mode */ - if (is_slave(i2s)) + if (priv->slave_mode) return 0; if (!(priv->quirks & QUIRK_NO_MUXPSR)) { |