dm: sound: Move common code out of maxim98095

The register-access code is useful for any maxim codec. Move it out into
its own file.

Signed-off-by: Simon Glass <sjg@chromium.org>

5 files changed, 204 insertions, 135 deletions

diff --git a/drivers/sound/Makefile b/drivers/sound/Makefile
index 75fa31ec53..b08845599f 100644
--- a/drivers/sound/Makefile
+++ b/drivers/sound/Makefile
@@ -15,4 +15,4 @@ else
 obj-$(CONFIG_I2S)	+= sound-i2s.o
 endif
 obj-$(CONFIG_SOUND_WM8994)	+= wm8994.o
-obj-$(CONFIG_SOUND_MAX98095)	+= max98095.o
+obj-$(CONFIG_SOUND_MAX98095)	+= max98095.o maxim_codec.o
diff --git a/drivers/sound/max98095.c b/drivers/sound/max98095.c
index d6710dfaa7..e9bf64f82f 100644
--- a/drivers/sound/max98095.c
+++ b/drivers/sound/max98095.c
@@ -25,97 +25,11 @@
 #include "i2s.h"
 #include "max98095.h"
 
-struct max98095_priv {
-	unsigned int sysclk;
-	unsigned int rate;
-	unsigned int fmt;
-	int i2c_addr;
-	struct udevice *dev;
-};
-
 /* Index 0 is reserved. */
 int rate_table[] = {0, 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000,
 		88200, 96000};
 
 /*
- * Writes value to a device register through i2c
- *
- * @param priv	Private data for driver
- * @param reg	reg number to be write
- * @param data	data to be writen to the above registor
- *
- * @return	int value 1 for change, 0 for no change or negative error code.
- */
-static int max98095_i2c_write(struct max98095_priv *priv, unsigned int reg,
-			      unsigned char data)
-{
-	debug("%s: Write Addr : 0x%02X, Data :  0x%02X\n",
-	      __func__, reg, data);
-#ifdef CONFIG_DM_SOUND
-	debug("dev = %s\n", priv->dev->name);
-	return dm_i2c_write(priv->dev, reg, &data, 1);
-#else
-	return i2c_write(priv->i2c_addr, reg, 1, &data, 1);
-#endif
-}
-
-/*
- * Read a value from a device register through i2c
- *
- * @param priv	Private data for driver
- * @param reg	reg number to be read
- * @param data	address of read data to be stored
- *
- * @return	int value 0 for success, -1 in case of error.
- */
-static unsigned int max98095_i2c_read(struct max98095_priv *priv,
-				      unsigned int reg, unsigned char *data)
-{
-	int ret;
-
-#ifdef CONFIG_DM_SOUND
-	return dm_i2c_read(priv->dev, reg, data, 1);
-#else
-	ret = i2c_read(priv->i2c_addr, reg, 1, data, 1);
-#endif
-	if (ret != 0) {
-		debug("%s: Error while reading register %#04x\n",
-		      __func__, reg);
-		return -1;
-	}
-
-	return 0;
-}
-
-/*
- * update device register bits through i2c
- *
- * @param priv	Private data for driver
- * @param reg	codec register
- * @param mask	register mask
- * @param value	new value
- *
- * @return int value 0 for success, non-zero error code.
- */
-static int max98095_bic_or(struct max98095_priv *priv, unsigned int reg,
-			   unsigned char mask, unsigned char value)
-{
-	int change, ret = 0;
-	unsigned char old, new;
-
-	if (max98095_i2c_read(priv, reg, &old) != 0)
-		return -1;
-	new = (old & ~mask) | (value & mask);
-	change  = (old != new) ? 1 : 0;
-	if (change)
-		ret = max98095_i2c_write(priv, reg, new);
-	if (ret < 0)
-		return ret;
-
-	return change;
-}
-
-/*
  * codec mclk clock divider coefficients based on sampling rate
  *
  * @param rate sampling rate
@@ -147,7 +61,7 @@ static int rate_value(int rate, u8 *value)
  *
  * @return -1 for error  and 0  Success.
  */
-static int max98095_hw_params(struct max98095_priv *priv,
+static int max98095_hw_params(struct maxim_priv *priv,
 			      enum en_max_audio_interface aif_id,
 			      unsigned int rate, unsigned int bits_per_sample)
 {
@@ -169,12 +83,11 @@ static int max98095_hw_params(struct max98095_priv *priv,
 
 	switch (bits_per_sample) {
 	case 16:
-		error = max98095_bic_or(priv, M98095_DAI_FORMAT, M98095_DAI_WS,
-					0);
+		error = maxim_bic_or(priv, M98095_DAI_FORMAT, M98095_DAI_WS, 0);
 		break;
 	case 24:
-		error = max98095_bic_or(priv, M98095_DAI_FORMAT, M98095_DAI_WS,
-					M98095_DAI_WS);
+		error = maxim_bic_or(priv, M98095_DAI_FORMAT, M98095_DAI_WS,
+				     M98095_DAI_WS);
 		break;
 	default:
 		debug("%s: Illegal bits per sample %d.\n",
@@ -189,15 +102,15 @@ static int max98095_hw_params(struct max98095_priv *priv,
 	}
 	priv->rate = rate;
 
-	error |= max98095_bic_or(priv, M98095_DAI_CLKMODE, M98095_CLKMODE_MASK,
+	error |= maxim_bic_or(priv, M98095_DAI_CLKMODE, M98095_CLKMODE_MASK,
 				 regval);
 
 	/* Update sample rate mode */
 	if (rate < 50000)
-		error |= max98095_bic_or(priv, M98095_DAI_FILTERS,
+		error |= maxim_bic_or(priv, M98095_DAI_FILTERS,
 					 M98095_DAI_DHF, 0);
 	else
-		error |= max98095_bic_or(priv, M98095_DAI_FILTERS,
+		error |= maxim_bic_or(priv, M98095_DAI_FILTERS,
 					 M98095_DAI_DHF, M98095_DAI_DHF);
 
 	if (error < 0) {
@@ -216,7 +129,7 @@ static int max98095_hw_params(struct max98095_priv *priv,
  *
  * @return -1 for error and 0 success.
  */
-static int max98095_set_sysclk(struct max98095_priv *priv, unsigned int freq)
+static int max98095_set_sysclk(struct maxim_priv *priv, unsigned int freq)
 {
 	int error = 0;
 
@@ -230,11 +143,11 @@ static int max98095_set_sysclk(struct max98095_priv *priv, unsigned int freq)
 	 *	0x03 (when master clk is 40MHz to 60MHz)..
 	 */
 	if ((freq >= 10000000) && (freq < 20000000)) {
-		error = max98095_i2c_write(priv, M98095_026_SYS_CLK, 0x10);
+		error = maxim_i2c_write(priv, M98095_026_SYS_CLK, 0x10);
 	} else if ((freq >= 20000000) && (freq < 40000000)) {
-		error = max98095_i2c_write(priv, M98095_026_SYS_CLK, 0x20);
+		error = maxim_i2c_write(priv, M98095_026_SYS_CLK, 0x20);
 	} else if ((freq >= 40000000) && (freq < 60000000)) {
-		error = max98095_i2c_write(priv, M98095_026_SYS_CLK, 0x30);
+		error = maxim_i2c_write(priv, M98095_026_SYS_CLK, 0x30);
 	} else {
 		debug("%s: Invalid master clock frequency\n", __func__);
 		return -1;
@@ -258,7 +171,7 @@ static int max98095_set_sysclk(struct max98095_priv *priv, unsigned int freq)
  *
  * @return -1 for error and 0  Success.
  */
-static int max98095_set_fmt(struct max98095_priv *priv, int fmt,
+static int max98095_set_fmt(struct maxim_priv *priv, int fmt,
 			    enum en_max_audio_interface aif_id)
 {
 	u8 regval = 0;
@@ -288,8 +201,8 @@ static int max98095_set_fmt(struct max98095_priv *priv, int fmt,
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBS_CFS:
 		/* Slave mode PLL */
-		error |= max98095_i2c_write(priv, M98095_DAI_CLKCFG_HI, 0x80);
-		error |= max98095_i2c_write(priv, M98095_DAI_CLKCFG_LO, 0x00);
+		error |= maxim_i2c_write(priv, M98095_DAI_CLKCFG_HI, 0x80);
+		error |= maxim_i2c_write(priv, M98095_DAI_CLKCFG_LO, 0x00);
 		break;
 	case SND_SOC_DAIFMT_CBM_CFM:
 		/* Set to master mode */
@@ -330,11 +243,11 @@ static int max98095_set_fmt(struct max98095_priv *priv, int fmt,
 		return -1;
 	}
 
-	error |= max98095_bic_or(priv, M98095_DAI_FORMAT,
+	error |= maxim_bic_or(priv, M98095_DAI_FORMAT,
 				 M98095_DAI_MAS | M98095_DAI_DLY |
 				 M98095_DAI_BCI | M98095_DAI_WCI, regval);
 
-	error |= max98095_i2c_write(priv, M98095_DAI_CLOCK, M98095_DAI_BSEL64);
+	error |= maxim_i2c_write(priv, M98095_DAI_CLOCK, M98095_DAI_BSEL64);
 
 	if (error < 0) {
 		debug("%s: Error setting i2s format.\n", __func__);
@@ -350,7 +263,7 @@ static int max98095_set_fmt(struct max98095_priv *priv, int fmt,
  * @param priv	Private data for driver
  * @return -1 for error and 0 success.
  */
-static int max98095_reset(struct max98095_priv *priv)
+static int max98095_reset(struct maxim_priv *priv)
 {
 	int i, ret;
 
@@ -358,13 +271,13 @@ static int max98095_reset(struct max98095_priv *priv)
 	 * Gracefully reset the DSP core and the codec hardware in a proper
 	 * sequence.
 	 */
-	ret = max98095_i2c_write(priv, M98095_00F_HOST_CFG, 0);
+	ret = maxim_i2c_write(priv, M98095_00F_HOST_CFG, 0);
 	if (ret != 0) {
 		debug("%s: Failed to reset DSP: %d\n", __func__, ret);
 		return ret;
 	}
 
-	ret = max98095_i2c_write(priv, M98095_097_PWR_SYS, 0);
+	ret = maxim_i2c_write(priv, M98095_097_PWR_SYS, 0);
 	if (ret != 0) {
 		debug("%s: Failed to reset codec: %d\n", __func__, ret);
 		return ret;
@@ -375,7 +288,7 @@ static int max98095_reset(struct max98095_priv *priv)
 	 * reset hardware control register.
 	 */
 	for (i = M98095_010_HOST_INT_CFG; i < M98095_REG_MAX_CACHED; i++) {
-		ret = max98095_i2c_write(priv, i, 0);
+		ret = maxim_i2c_write(priv, i, 0);
 		if (ret < 0) {
 			debug("%s: Failed to reset: %d\n", __func__, ret);
 			return ret;
@@ -392,7 +305,7 @@ static int max98095_reset(struct max98095_priv *priv)
  *
  * @returns -1 for error  and 0 Success.
  */
-static int max98095_device_init(struct max98095_priv *priv)
+static int max98095_device_init(struct maxim_priv *priv)
 {
 	unsigned char id;
 	int error = 0;
@@ -412,7 +325,7 @@ static int max98095_device_init(struct max98095_priv *priv)
 	priv->rate = -1U;
 	priv->fmt = -1U;
 
-	error = max98095_i2c_read(priv, M98095_0FF_REV_ID, &id);
+	error = maxim_i2c_read(priv, M98095_0FF_REV_ID, &id);
 	if (error < 0) {
 		debug("%s: Failure reading hardware revision: %d\n",
 		      __func__, id);
@@ -423,63 +336,63 @@ static int max98095_device_init(struct max98095_priv *priv)
 	return 0;
 }
 
-static int max98095_setup_interface(struct max98095_priv *priv,
+static int max98095_setup_interface(struct maxim_priv *priv,
 				    enum en_max_audio_interface aif_id)
 {
 	int error;
 
-	error = max98095_i2c_write(priv, M98095_097_PWR_SYS, M98095_PWRSV);
+	error = maxim_i2c_write(priv, M98095_097_PWR_SYS, M98095_PWRSV);
 
 	/*
 	 * initialize registers to hardware default configuring audio
 	 * interface2 to DAC
 	 */
 	if (aif_id == AIF1)
-		error |= max98095_i2c_write(priv, M98095_048_MIX_DAC_LR,
+		error |= maxim_i2c_write(priv, M98095_048_MIX_DAC_LR,
 					    M98095_DAI1L_TO_DACL |
 					    M98095_DAI1R_TO_DACR);
 	else
-		error |= max98095_i2c_write(priv, M98095_048_MIX_DAC_LR,
+		error |= maxim_i2c_write(priv, M98095_048_MIX_DAC_LR,
 					    M98095_DAI2M_TO_DACL |
 					    M98095_DAI2M_TO_DACR);
 
-	error |= max98095_i2c_write(priv, M98095_092_PWR_EN_OUT,
+	error |= maxim_i2c_write(priv, M98095_092_PWR_EN_OUT,
 				    M98095_SPK_SPREADSPECTRUM);
-	error |= max98095_i2c_write(priv, M98095_04E_CFG_HP, M98095_HPNORMAL);
+	error |= maxim_i2c_write(priv, M98095_04E_CFG_HP, M98095_HPNORMAL);
 	if (aif_id == AIF1)
-		error |= max98095_i2c_write(priv, M98095_02C_DAI1_IOCFG,
+		error |= maxim_i2c_write(priv, M98095_02C_DAI1_IOCFG,
 					    M98095_S1NORMAL | M98095_SDATA);
 	else
-		error |= max98095_i2c_write(priv, M98095_036_DAI2_IOCFG,
+		error |= maxim_i2c_write(priv, M98095_036_DAI2_IOCFG,
 					    M98095_S2NORMAL | M98095_SDATA);
 
 	/* take the codec out of the shut down */
-	error |= max98095_bic_or(priv, M98095_097_PWR_SYS, M98095_SHDNRUN,
+	error |= maxim_bic_or(priv, M98095_097_PWR_SYS, M98095_SHDNRUN,
 				 M98095_SHDNRUN);
 	/*
 	 * route DACL and DACR output to HO and Speakers
 	 * Ordering: DACL, DACR, DACL, DACR
 	 */
-	error |= max98095_i2c_write(priv, M98095_050_MIX_SPK_LEFT, 0x01);
-	error |= max98095_i2c_write(priv, M98095_051_MIX_SPK_RIGHT, 0x01);
-	error |= max98095_i2c_write(priv, M98095_04C_MIX_HP_LEFT, 0x01);
-	error |= max98095_i2c_write(priv, M98095_04D_MIX_HP_RIGHT, 0x01);
+	error |= maxim_i2c_write(priv, M98095_050_MIX_SPK_LEFT, 0x01);
+	error |= maxim_i2c_write(priv, M98095_051_MIX_SPK_RIGHT, 0x01);
+	error |= maxim_i2c_write(priv, M98095_04C_MIX_HP_LEFT, 0x01);
+	error |= maxim_i2c_write(priv, M98095_04D_MIX_HP_RIGHT, 0x01);
 
 	/* power Enable */
-	error |= max98095_i2c_write(priv, M98095_091_PWR_EN_OUT, 0xF3);
+	error |= maxim_i2c_write(priv, M98095_091_PWR_EN_OUT, 0xF3);
 
 	/* set Volume */
-	error |= max98095_i2c_write(priv, M98095_064_LVL_HP_L, 15);
-	error |= max98095_i2c_write(priv, M98095_065_LVL_HP_R, 15);
-	error |= max98095_i2c_write(priv, M98095_067_LVL_SPK_L, 16);
-	error |= max98095_i2c_write(priv, M98095_068_LVL_SPK_R, 16);
+	error |= maxim_i2c_write(priv, M98095_064_LVL_HP_L, 15);
+	error |= maxim_i2c_write(priv, M98095_065_LVL_HP_R, 15);
+	error |= maxim_i2c_write(priv, M98095_067_LVL_SPK_L, 16);
+	error |= maxim_i2c_write(priv, M98095_068_LVL_SPK_R, 16);
 
 	/* Enable DAIs */
-	error |= max98095_i2c_write(priv, M98095_093_BIAS_CTRL, 0x30);
+	error |= maxim_i2c_write(priv, M98095_093_BIAS_CTRL, 0x30);
 	if (aif_id == AIF1)
-		error |= max98095_i2c_write(priv, M98095_096_PWR_DAC_CK, 0x01);
+		error |= maxim_i2c_write(priv, M98095_096_PWR_DAC_CK, 0x01);
 	else
-		error |= max98095_i2c_write(priv, M98095_096_PWR_DAC_CK, 0x07);
+		error |= maxim_i2c_write(priv, M98095_096_PWR_DAC_CK, 0x07);
 
 	if (error < 0)
 		return -1;
@@ -487,7 +400,7 @@ static int max98095_setup_interface(struct max98095_priv *priv,
 	return 0;
 }
 
-static int max98095_do_init(struct max98095_priv *priv,
+static int max98095_do_init(struct maxim_priv *priv,
 			    enum en_max_audio_interface aif_id,
 			    int sampling_rate, int mclk_freq,
 			    int bits_per_sample)
@@ -601,7 +514,7 @@ static int max98095_set_params(struct udevice *dev, int interface, int rate,
 			       int mclk_freq, int bits_per_sample,
 			       uint channels)
 {
-	struct max98095_priv *priv = dev_get_priv(dev);
+	struct maxim_priv *priv = dev_get_priv(dev);
 
 	return max98095_do_init(priv, interface, rate, mclk_freq,
 				bits_per_sample);
@@ -609,7 +522,7 @@ static int max98095_set_params(struct udevice *dev, int interface, int rate,
 
 static int max98095_probe(struct udevice *dev)
 {
-	struct max98095_priv *priv = dev_get_priv(dev);
+	struct maxim_priv *priv = dev_get_priv(dev);
 	int ret;
 
 	priv->dev = dev;
@@ -637,5 +550,5 @@ U_BOOT_DRIVER(max98095) = {
 	.of_match	= max98095_ids,
 	.probe		= max98095_probe,
 	.ops		= &max98095_ops,
-	.priv_auto_alloc_size	= sizeof(struct max98095_priv),
+	.priv_auto_alloc_size	= sizeof(struct maxim_priv),
 };
diff --git a/drivers/sound/max98095.h b/drivers/sound/max98095.h
index 13ae177a86..f189db728d 100644
--- a/drivers/sound/max98095.h
+++ b/drivers/sound/max98095.h
@@ -11,6 +11,8 @@
 #ifndef _MAX98095_H
 #define _MAX98095_H
 
+#include "maxim_codec.h"
+
 /*  Available audio interface ports in wm8994 codec */
 enum en_max_audio_interface {
 	AIF1,
diff --git a/drivers/sound/maxim_codec.c b/drivers/sound/maxim_codec.c
new file mode 100644
index 0000000000..dcaf081988
--- /dev/null
+++ b/drivers/sound/maxim_codec.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * maxim_codec.c -- MAXIM CODEC Common driver
+ *
+ * Copyright 2011 Maxim Integrated Products
+ */
+
+#include <common.h>
+#include <div64.h>
+#include <i2c.h>
+#include <i2s.h>
+#include <sound.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/power.h>
+#include "maxim_codec.h"
+
+/*
+ * Writes value to a device register through i2c
+ *
+ * @param priv	Private data for driver
+ * @param reg	reg number to be write
+ * @param data	data to be writen to the above registor
+ *
+ * @return	int value 1 for change, 0 for no change or negative error code.
+ */
+int maxim_i2c_write(struct maxim_priv *priv, unsigned int reg,
+		    unsigned char data)
+{
+	debug("%s: Write Addr : 0x%02X, Data :  0x%02X\n",
+	      __func__, reg, data);
+	return dm_i2c_write(priv->dev, reg, &data, 1);
+}
+
+/*
+ * Read a value from a device register through i2c
+ *
+ * @param priv	Private data for driver
+ * @param reg	reg number to be read
+ * @param data	address of read data to be stored
+ *
+ * @return	int value 0 for success, -1 in case of error.
+ */
+unsigned int maxim_i2c_read(struct maxim_priv *priv, unsigned int reg,
+			    unsigned char *data)
+{
+	int ret;
+
+	return dm_i2c_read(priv->dev, reg, data, 1);
+	if (ret != 0) {
+		debug("%s: Error while reading register %#04x\n",
+		      __func__, reg);
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * update device register bits through i2c
+ *
+ * @param priv	Private data for driver
+ * @param reg	codec register
+ * @param mask	register mask
+ * @param value	new value
+ *
+ * @return int value 0 for success, non-zero error code.
+ */
+int maxim_bic_or(struct maxim_priv *priv, unsigned int reg, unsigned char mask,
+		 unsigned char value)
+{
+	int change, ret = 0;
+	unsigned char old, new;
+
+	if (maxim_i2c_read(priv, reg, &old) != 0)
+		return -1;
+	new = (old & ~mask) | (value & mask);
+	change  = (old != new) ? 1 : 0;
+	if (change)
+		ret = maxim_i2c_write(priv, reg, new);
+	if (ret < 0)
+		return ret;
+
+	return change;
+}
diff --git a/drivers/sound/maxim_codec.h b/drivers/sound/maxim_codec.h
new file mode 100644
index 0000000000..a3128e0bb7
--- /dev/null
+++ b/drivers/sound/maxim_codec.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * maxim_codec.h -- MAXIM codec common interface file
+ *
+ * Copyright (C) 2013 Samsung Electronics
+ * D Krishna Mohan <krishna.md@samsung.com>
+ */
+
+#ifndef __MAXIM_COMMON_H__
+#define __MAXIM_COMMON_H__
+
+enum maxim_codec_type {
+	MAX98095,
+	MAX98090,
+};
+
+struct maxim_priv {
+	enum maxim_codec_type devtype;
+	unsigned int sysclk;
+	unsigned int rate;
+	unsigned int fmt;
+	struct udevice *dev;
+};
+
+#define MAXIM_AUDIO_I2C_BUS		7
+#define MAXIM_AUDIO_I2C_REG_98095	0x22
+
+#define MAXIM_AUDIO_I2C_REG		MAXIM_AUDIO_I2C_REG_98095
+
+/*
+ * Writes value to a device register through i2c
+ *
+ * @param priv	Private data for driver
+ * @param reg	reg number to be write
+ * @param data	data to be writen to the above registor
+ *
+ * @return	int value 1 for change, 0 for no change or negative error code.
+ */
+int maxim_i2c_write(struct maxim_priv *priv, unsigned int reg,
+		    unsigned char data);
+
+/*
+ * Read a value from a device register through i2c
+ *
+ * @param priv	Private data for driver
+ * @param reg	reg number to be read
+ * @param data	address of read data to be stored
+ *
+ * @return	int value 0 for success, -1 in case of error.
+ */
+unsigned int maxim_i2c_read(struct maxim_priv *priv, unsigned int reg,
+			    unsigned char *data);
+
+/*
+ * update device register bits through i2c
+ *
+ * @param priv	Private data for driver
+ * @param reg	codec register
+ * @param mask	register mask
+ * @param value	new value
+ *
+ * @return int value 0 for success, non-zero error code.
+ */
+int maxim_bic_or(struct maxim_priv *priv, unsigned int reg, unsigned char mask,
+		 unsigned char value);
+
+#endif /* __MAXIM_COMMON_H__ */