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ASoC: samsung: i2s: Move registers cache to common driver data structure 

There is no need to keep the PM suspend/resume register cache separate
for each DAI as those registers are common, move related i2s_dai data
structure to the driver's common data structure.  This will allow us
to simplify the code a little eventually and to make it easier to follow.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sylwester Nawrocki 2019-02-12 19:03:27 +01:00 committed by Mark Brown
parent 3b0fa51ffd
commit 81bcbf2c72
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 11 additions and 9 deletions
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20
sound/soc/samsung/i2s.c
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@ -86,9 +86,6 @@ struct i2s_dai {
struct snd_dmaengine_dai_dma_data idma_playback;
dma_filter_fn filter;
u32 quirks;
u32 suspend_i2smod;
u32 suspend_i2scon;
u32 suspend_i2spsr;
const struct samsung_i2s_variant_regs *variant_regs;
spinlock_t *lock;
@ -120,6 +117,11 @@ struct samsung_i2s_priv {
/* Rate of RCLK source clock */
unsigned long rclk_srcrate;
/* Cache of selected I2S registers for system suspend */
u32 suspend_i2smod;
u32 suspend_i2scon;
u32 suspend_i2spsr;
/* The clock provider's data */
struct clk *clk_table[3];
struct clk_onecell_data clk_data;
@ -1205,9 +1207,9 @@ static int i2s_runtime_suspend(struct device *dev)
struct samsung_i2s_priv *priv = dev_get_drvdata(dev);
struct i2s_dai *i2s = samsung_i2s_get_pri_dai(dev);
i2s->suspend_i2smod = readl(i2s->addr + I2SMOD);
i2s->suspend_i2scon = readl(i2s->addr + I2SCON);
i2s->suspend_i2spsr = readl(i2s->addr + I2SPSR);
priv->suspend_i2smod = readl(i2s->addr + I2SMOD);
priv->suspend_i2scon = readl(i2s->addr + I2SCON);
priv->suspend_i2spsr = readl(i2s->addr + I2SPSR);
if (priv->op_clk)
clk_disable_unprepare(priv->op_clk);
@ -1234,9 +1236,9 @@ static int i2s_runtime_resume(struct device *dev)
}
}
writel(i2s->suspend_i2scon, i2s->addr + I2SCON);
writel(i2s->suspend_i2smod, i2s->addr + I2SMOD);
writel(i2s->suspend_i2spsr, i2s->addr + I2SPSR);
writel(priv->suspend_i2scon, i2s->addr + I2SCON);
writel(priv->suspend_i2smod, i2s->addr + I2SMOD);
writel(priv->suspend_i2spsr, i2s->addr + I2SPSR);
return 0;
}