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>

1 files changed, 67 insertions, 0 deletions

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__ */