Merge remote-tracking branches 'asoc/topic/fsl-asrc' and 'asoc/topic/fsl-ssi' into asoc-next

sound/soc/fsl/fsl_asrc.c

@@ -996,6 +996,9 @@ static int fsl_asrc_suspend(struct device *dev)
 {
 	struct fsl_asrc *asrc_priv = dev_get_drvdata(dev);
 
+	regmap_read(asrc_priv->regmap, REG_ASRCFG,
+		    &asrc_priv->regcache_cfg);
+
 	regcache_cache_only(asrc_priv->regmap, true);
 	regcache_mark_dirty(asrc_priv->regmap);
 
@@ -1016,6 +1019,10 @@ static int fsl_asrc_resume(struct device *dev)
 	regcache_cache_only(asrc_priv->regmap, false);
 	regcache_sync(asrc_priv->regmap);
 
+	regmap_update_bits(asrc_priv->regmap, REG_ASRCFG,
+			   ASRCFG_NDPRi_ALL_MASK | ASRCFG_POSTMODi_ALL_MASK |
+			   ASRCFG_PREMODi_ALL_MASK, asrc_priv->regcache_cfg);
+
 	/* Restart enabled pairs */
 	regmap_update_bits(asrc_priv->regmap, REG_ASRCTR,
 			   ASRCTR_ASRCEi_ALL_MASK, asrctr);

sound/soc/fsl/fsl_asrc.h

@@ -132,10 +132,13 @@
 #define ASRCFG_INIRQi			(1 << ASRCFG_INIRQi_SHIFT(i))
 #define ASRCFG_NDPRi_SHIFT(i)		(18 + i)
 #define ASRCFG_NDPRi_MASK(i)		(1 << ASRCFG_NDPRi_SHIFT(i))
+#define ASRCFG_NDPRi_ALL_SHIFT		18
+#define ASRCFG_NDPRi_ALL_MASK		(7 << ASRCFG_NDPRi_ALL_SHIFT)
 #define ASRCFG_NDPRi			(1 << ASRCFG_NDPRi_SHIFT(i))
 #define ASRCFG_POSTMODi_SHIFT(i)	(8 + (i << 2))
 #define ASRCFG_POSTMODi_WIDTH		2
 #define ASRCFG_POSTMODi_MASK(i)		(((1 << ASRCFG_POSTMODi_WIDTH) - 1) << ASRCFG_POSTMODi_SHIFT(i))
+#define ASRCFG_POSTMODi_ALL_MASK	(ASRCFG_POSTMODi_MASK(0) | ASRCFG_POSTMODi_MASK(1) | ASRCFG_POSTMODi_MASK(2))
 #define ASRCFG_POSTMOD(i, v)		((v) << ASRCFG_POSTMODi_SHIFT(i))
 #define ASRCFG_POSTMODi_UP(i)		(0 << ASRCFG_POSTMODi_SHIFT(i))
 #define ASRCFG_POSTMODi_DCON(i)		(1 << ASRCFG_POSTMODi_SHIFT(i))
@@ -143,6 +146,7 @@
 #define ASRCFG_PREMODi_SHIFT(i)		(6 + (i << 2))
 #define ASRCFG_PREMODi_WIDTH		2
 #define ASRCFG_PREMODi_MASK(i)		(((1 << ASRCFG_PREMODi_WIDTH) - 1) << ASRCFG_PREMODi_SHIFT(i))
+#define ASRCFG_PREMODi_ALL_MASK		(ASRCFG_PREMODi_MASK(0) | ASRCFG_PREMODi_MASK(1) | ASRCFG_PREMODi_MASK(2))
 #define ASRCFG_PREMOD(i, v)		((v) << ASRCFG_PREMODi_SHIFT(i))
 #define ASRCFG_PREMODi_UP(i)		(0 << ASRCFG_PREMODi_SHIFT(i))
 #define ASRCFG_PREMODi_DCON(i)		(1 << ASRCFG_PREMODi_SHIFT(i))
@@ -434,6 +438,7 @@ struct fsl_asrc_pair {
  * @channel_avail: non-occupied channel numbers
  * @asrc_rate: default sample rate for ASoC Back-Ends
  * @asrc_width: default sample width for ASoC Back-Ends
+ * @regcache_cfg: store register value of REG_ASRCFG
  */
 struct fsl_asrc {
 	struct snd_dmaengine_dai_dma_data dma_params_rx;
@@ -453,6 +458,8 @@ struct fsl_asrc {
 
 	int asrc_rate;
 	int asrc_width;
+
+	u32 regcache_cfg;
 };
 
 extern struct snd_soc_platform_driver fsl_asrc_platform;

sound/soc/fsl/fsl_ssi.c

@@ -146,6 +146,7 @@ static bool fsl_ssi_volatile_reg(struct device *dev, unsigned int reg)
 	case CCSR_SSI_SRX1:
 	case CCSR_SSI_SISR:
 	case CCSR_SSI_SFCSR:
+	case CCSR_SSI_SACNT:
 	case CCSR_SSI_SACADD:
 	case CCSR_SSI_SACDAT:
 	case CCSR_SSI_SATAG:
@@ -156,6 +157,21 @@ static bool fsl_ssi_volatile_reg(struct device *dev, unsigned int reg)
 	}
 }
 
+static bool fsl_ssi_precious_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case CCSR_SSI_SRX0:
+	case CCSR_SSI_SRX1:
+	case CCSR_SSI_SISR:
+	case CCSR_SSI_SACADD:
+	case CCSR_SSI_SACDAT:
+	case CCSR_SSI_SATAG:
+		return true;
+	default:
+		return false;
+	}
+}
+
 static bool fsl_ssi_writeable_reg(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
@@ -178,6 +194,7 @@ static const struct regmap_config fsl_ssi_regconfig = {
 	.num_reg_defaults = ARRAY_SIZE(fsl_ssi_reg_defaults),
 	.readable_reg = fsl_ssi_readable_reg,
 	.volatile_reg = fsl_ssi_volatile_reg,
+	.precious_reg = fsl_ssi_precious_reg,
 	.writeable_reg = fsl_ssi_writeable_reg,
 	.cache_type = REGCACHE_RBTREE,
 };
@@ -239,8 +256,9 @@ struct fsl_ssi_private {
 	unsigned int baudclk_streams;
 	unsigned int bitclk_freq;
 
-	/*regcache for SFCSR*/
+	/* regcache for volatile regs */
 	u32 regcache_sfcsr;
+	u32 regcache_sacnt;
 
 	/* DMA params */
 	struct snd_dmaengine_dai_dma_data dma_params_tx;
@@ -1587,6 +1605,8 @@ static int fsl_ssi_suspend(struct device *dev)
 
 	regmap_read(regs, CCSR_SSI_SFCSR,
 			&ssi_private->regcache_sfcsr);
+	regmap_read(regs, CCSR_SSI_SACNT,
+			&ssi_private->regcache_sacnt);
 
 	regcache_cache_only(regs, true);
 	regcache_mark_dirty(regs);
@@ -1605,6 +1625,8 @@ static int fsl_ssi_resume(struct device *dev)
 			CCSR_SSI_SFCSR_RFWM1_MASK | CCSR_SSI_SFCSR_TFWM1_MASK |
 			CCSR_SSI_SFCSR_RFWM0_MASK | CCSR_SSI_SFCSR_TFWM0_MASK,
 			ssi_private->regcache_sfcsr);
+	regmap_write(regs, CCSR_SSI_SACNT,
+			ssi_private->regcache_sacnt);
 
 	return regcache_sync(regs);
 }