Merge branch 'topic/for-asoc'

git-mirror · Sep 2, 2013 · f4388ca · f4388ca
2 parents 6228218 + c6f3925
commit f4388ca
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Showing 4 changed files with 46 additions and 24 deletions.
diff --git a/drivers/mfd/davinci_voicecodec.c b/drivers/mfd/davinci_voicecodec.c
@@ -27,21 +27,16 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/clk.h>
+#include <linux/regmap.h>
 
 #include <sound/pcm.h>
 
 #include <linux/mfd/davinci_voicecodec.h>
 
-u32 davinci_vc_read(struct davinci_vc *davinci_vc, int reg)
-{
-	return __raw_readl(davinci_vc->base + reg);
-}
-
-void davinci_vc_write(struct davinci_vc *davinci_vc,
-					   int reg, u32 val)
-{
-	__raw_writel(val, davinci_vc->base + reg);
-}
+static struct regmap_config davinci_vc_regmap = {
+	.reg_bits = 32,
+	.val_bits = 32,
+};
 
 static int __init davinci_vc_probe(struct platform_device *pdev)
 {
@@ -74,6 +69,14 @@ static int __init davinci_vc_probe(struct platform_device *pdev)
 		goto fail;
 	}
 
+	davinci_vc->regmap = devm_regmap_init_mmio(&pdev->dev,
+						   davinci_vc->base,
+						   &davinci_vc_regmap);
+	if (IS_ERR(davinci_vc->regmap)) {
+		ret = PTR_ERR(davinci_vc->regmap);
+		goto fail;
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "no DMA resource\n");

diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
@@ -58,15 +58,9 @@ int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg)
 	int ret;
 	unsigned int val;
 
-	/* Vibra control registers from cache */
-	if (unlikely(reg == TWL6040_REG_VIBCTLL ||
-		     reg == TWL6040_REG_VIBCTLR)) {
-		val = twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)];
-	} else {
-		ret = regmap_read(twl6040->regmap, reg, &val);
-		if (ret < 0)
-			return ret;
-	}
+	ret = regmap_read(twl6040->regmap, reg, &val);
+	if (ret < 0)
+		return ret;
 
 	return val;
 }
@@ -77,9 +71,6 @@ int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val)
 	int ret;
 
 	ret = regmap_write(twl6040->regmap, reg, val);
-	/* Cache the vibra control registers */
-	if (reg == TWL6040_REG_VIBCTLL || reg == TWL6040_REG_VIBCTLR)
-		twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)] = val;
 
 	return ret;
 }
@@ -456,9 +447,20 @@ EXPORT_SYMBOL(twl6040_get_sysclk);
 /* Get the combined status of the vibra control register */
 int twl6040_get_vibralr_status(struct twl6040 *twl6040)
 {
+	unsigned int reg;
+	int ret;
 	u8 status;
 
-	status = twl6040->vibra_ctrl_cache[0] | twl6040->vibra_ctrl_cache[1];
+	ret = regmap_read(twl6040->regmap, TWL6040_REG_VIBCTLL, &reg);
+	if (ret != 0)
+		return ret;
+	status = reg;
+
+	ret = regmap_read(twl6040->regmap, TWL6040_REG_VIBCTLR, &reg);
+	if (ret != 0)
+		return ret;
+	status |= reg;
+
 	status &= (TWL6040_VIBENA | TWL6040_VIBSEL);
 
 	return status;
@@ -485,12 +487,27 @@ static bool twl6040_readable_reg(struct device *dev, unsigned int reg)
 	return true;
 }
 
+static bool twl6040_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case TWL6040_REG_VIBCTLL:
+	case TWL6040_REG_VIBCTLR:
+	case TWL6040_REG_INTMR:
+		return false;
+	default:
+		return true;
+	}
+}
+
 static struct regmap_config twl6040_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = TWL6040_REG_STATUS, /* 0x2e */
 
 	.readable_reg = twl6040_readable_reg,
+	.volatile_reg = twl6040_volatile_reg,
+
+	.cache_type = REGCACHE_RBTREE,
 };
 
 static const struct regmap_irq twl6040_irqs[] = {

diff --git a/include/linux/mfd/davinci_voicecodec.h b/include/linux/mfd/davinci_voicecodec.h
@@ -30,6 +30,8 @@
 
 #include <mach/hardware.h>
 
+struct regmap;
+
 /*
  * Register values.
  */
@@ -113,6 +115,7 @@ struct davinci_vc {
 
 	/* Memory resources */
 	void __iomem *base;
+	struct regmap *regmap;
 
 	/* MFD cells */
 	struct mfd_cell cells[DAVINCI_VC_CELLS];

diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h
@@ -230,7 +230,6 @@ struct twl6040 {
 	int audpwron;
 	int power_count;
 	int rev;
-	u8 vibra_ctrl_cache[2];
 
 	/* PLL configuration */
 	int pll;