[11/22] ASoC: samsung: i2s: Move registers cache to common driver data structure
diff mbox series

Message ID 20190207170028.720-12-s.nawrocki@samsung.com
State New
Headers show
Series
  • [01/22] ASoC: dmaengine: Improve of_node test in dmaengine_pcm_request_chan_of()
Related show

Commit Message

Sylwester Nawrocki Feb. 7, 2019, 5 p.m. UTC
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>
---
 sound/soc/samsung/i2s.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

Comments

Krzysztof Kozlowski Feb. 11, 2019, 1:45 p.m. UTC | #1
On Thu, 7 Feb 2019 at 18:01, Sylwester Nawrocki <s.nawrocki@samsung.com> wrote:
>
> 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>
> ---
>  sound/soc/samsung/i2s.c | 20 +++++++++++---------
>  1 file changed, 11 insertions(+), 9 deletions(-)

Acked-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

Patch
diff mbox series

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index b7b28813645a..b0913cc488ab 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -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;
 }