dm: i2c: Rename driver model I2C functions to permit compatibility

Add a dm_ prefix to driver model I2C functions so that we can keep the old
ones around.

This is a little unfortunate, but on reflection it is too difficult to
change the API. We can undo this rename when most boards and drivers are
converted to use driver model for I2C.

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

2 files changed, 18 insertions, 13 deletions

diff --git a/common/cmd_i2c.c b/common/cmd_i2c.c
index f65ab616b0..1e500fbf2c 100644
--- a/common/cmd_i2c.c
+++ b/common/cmd_i2c.c
@@ -133,7 +133,7 @@ static uchar i2c_no_probes[] = CONFIG_SYS_I2C_NOPROBES;
 #ifdef CONFIG_DM_I2C
 static struct udevice *i2c_cur_bus;
 
-static int i2c_set_bus_num(unsigned int busnum)
+static int cmd_i2c_set_bus_num(unsigned int busnum)
 {
 	struct udevice *bus;
 	int ret;
@@ -323,7 +323,7 @@ static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
 	if (!ret && alen != -1)
 		ret = i2c_set_chip_offset_len(dev, alen);
 	if (!ret)
-		ret = i2c_read(dev, devaddr, memaddr, length);
+		ret = dm_i2c_read(dev, devaddr, memaddr, length);
 #else
 	ret = i2c_read(chip, devaddr, alen, memaddr, length);
 #endif
@@ -381,7 +381,7 @@ static int do_i2c_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[
 
 	while (length-- > 0) {
 #ifdef CONFIG_DM_I2C
-		ret = i2c_write(dev, devaddr++, memaddr++, 1);
+		ret = dm_i2c_write(dev, devaddr++, memaddr++, 1);
 #else
 		ret = i2c_write(chip, devaddr++, alen, memaddr++, 1);
 #endif
@@ -513,7 +513,7 @@ static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
 		linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
 
 #ifdef CONFIG_DM_I2C
-		ret = i2c_read(dev, addr, linebuf, linebytes);
+		ret = dm_i2c_read(dev, addr, linebuf, linebytes);
 #else
 		ret = i2c_read(chip, addr, alen, linebuf, linebytes);
 #endif
@@ -611,7 +611,7 @@ static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
 
 	while (count-- > 0) {
 #ifdef CONFIG_DM_I2C
-		ret = i2c_write(dev, addr++, &byte, 1);
+		ret = dm_i2c_write(dev, addr++, &byte, 1);
 #else
 		ret = i2c_write(chip, addr++, alen, &byte, 1);
 #endif
@@ -698,7 +698,7 @@ static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
 	err = 0;
 	while (count-- > 0) {
 #ifdef CONFIG_DM_I2C
-		ret = i2c_read(dev, addr, &byte, 1);
+		ret = dm_i2c_read(dev, addr, &byte, 1);
 #else
 		ret = i2c_read(chip, addr, alen, &byte, 1);
 #endif
@@ -793,7 +793,7 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
 	do {
 		printf("%08lx:", addr);
 #ifdef CONFIG_DM_I2C
-		ret = i2c_read(dev, addr, (uchar *)&data, size);
+		ret = dm_i2c_read(dev, addr, (uchar *)&data, size);
 #else
 		ret = i2c_read(chip, addr, alen, (uchar *)&data, size);
 #endif
@@ -841,8 +841,8 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
 				 */
 				bootretry_reset_cmd_timeout();
 #ifdef CONFIG_DM_I2C
-				ret = i2c_write(dev, addr, (uchar *)&data,
-						size);
+				ret = dm_i2c_write(dev, addr, (uchar *)&data,
+						   size);
 #else
 				ret = i2c_write(chip, addr, alen,
 						(uchar *)&data, size);
@@ -917,7 +917,7 @@ static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
 			continue;
 #endif
 #ifdef CONFIG_DM_I2C
-		ret = i2c_probe(bus, j, 0, &dev);
+		ret = dm_i2c_probe(bus, j, 0, &dev);
 #else
 		ret = i2c_probe(j);
 #endif
@@ -1010,7 +1010,7 @@ static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
 	 */
 	while (1) {
 #ifdef CONFIG_DM_I2C
-		ret = i2c_read(dev, addr, bytes, length);
+		ret = dm_i2c_read(dev, addr, bytes, length);
 #else
 		ret = i2c_read(chip, addr, alen, bytes, length);
 #endif
@@ -1579,7 +1579,7 @@ int do_edid(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 #ifdef CONFIG_DM_I2C
 	ret = i2c_get_cur_bus_chip(chip, &dev);
 	if (!ret)
-		ret = i2c_read(dev, 0, (uchar *)&edid, sizeof(edid));
+		ret = dm_i2c_read(dev, 0, (uchar *)&edid, sizeof(edid));
 #else
 	ret = i2c_read(chip, 0, 1, (uchar *)&edid, sizeof(edid));
 #endif
@@ -1696,7 +1696,11 @@ static int do_i2c_bus_num(cmd_tbl_t *cmdtp, int flag, int argc,
 		}
 #endif
 		printf("Setting bus to %d\n", bus_no);
+#ifdef CONFIG_DM_I2C
+		ret = cmd_i2c_set_bus_num(bus_no);
+#else
 		ret = i2c_set_bus_num(bus_no);
+#endif
 		if (ret)
 			printf("Failure changing bus number (%d)\n", ret);
 	}
diff --git a/common/exports.c b/common/exports.c
index 88fcfc8cb6..459e18cb09 100644
--- a/common/exports.c
+++ b/common/exports.c
@@ -23,7 +23,8 @@ unsigned long get_version(void)
 # define install_hdlr      irq_install_handler
 # define free_hdlr         irq_free_handler
 #endif
-#ifndef CONFIG_CMD_I2C
+#if !defined(CONFIG_CMD_I2C) || \
+	(defined(CONFIG_DM_I2C) && !defined(CONFIG_DM_I2C_COMPAT))
 # define i2c_write         dummy
 # define i2c_read          dummy
 #endif