doc: replace @return by Return:

Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 4d9871d..f6ccd83 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -215,7 +215,7 @@
  * @data:	additional data to send/receive
  * @retries:	how many times to retry; mmc_send_cmd is always called at least
  *              once
- * @return 0 if ok, -ve on error
+ * Return: 0 if ok, -ve on error
  */
 static int mmc_send_cmd_retry(struct mmc *mmc, struct mmc_cmd *cmd,
 			      struct mmc_data *data, uint retries)
@@ -239,7 +239,7 @@
  * @quirk:	retry only if this quirk is enabled
  * @retries:	how many times to retry; mmc_send_cmd is always called at least
  *              once
- * @return 0 if ok, -ve on error
+ * Return: 0 if ok, -ve on error
  */
 static int mmc_send_cmd_quirks(struct mmc *mmc, struct mmc_cmd *cmd,
 			       struct mmc_data *data, u32 quirk, uint retries)
diff --git a/drivers/mmc/mmc_private.h b/drivers/mmc/mmc_private.h
index a6cd250..b321237 100644
--- a/drivers/mmc/mmc_private.h
+++ b/drivers/mmc/mmc_private.h
@@ -91,7 +91,7 @@
 /**
  * mmc_get_next_devnum() - Get the next available MMC device number
  *
- * @return next available device number (0 = first), or -ve on error
+ * Return: next available device number (0 = first), or -ve on error
  */
 int mmc_get_next_devnum(void);
 
@@ -117,7 +117,7 @@
  *
  * @mmc:	MMC device
  * @part_num:	Hardware partition number
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
  */
 int mmc_switch_part(struct mmc *mmc, unsigned int part_num);
 
@@ -128,7 +128,7 @@
  * @set:	Unused
  * @index:	Cmdarg index
  * @value:	Cmdarg value
- * @return 0 if OK, -ve on error
+ * Return: 0 if OK, -ve on error
  */
 int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value);
 
diff --git a/drivers/mmc/mmc_spi.c b/drivers/mmc/mmc_spi.c
index e2d7879..bcea800 100644
--- a/drivers/mmc/mmc_spi.c
+++ b/drivers/mmc/mmc_spi.c
@@ -83,7 +83,7 @@
  * @resp_match:	if true, compare each of received bytes with @resp_match_value
  * @resp_match_value:	a value to be compared with each of received bytes
  * @r1b:	if true, receive additional bytes for busy signal token
- * @return 0 if OK, -ETIMEDOUT if no card response is received, -ve on error
+ * Return: 0 if OK, -ETIMEDOUT if no card response is received, -ve on error
  */
 static int mmc_spi_sendcmd(struct udevice *dev,
 			   ushort cmdidx, u32 cmdarg, u32 resp_type,
@@ -181,7 +181,7 @@
  * @xbuf:	buffer of the actual data (excluding token and crc) to read
  * @bcnt:	number of data blocks to transfer
  * @bsize:	size of the actual data (excluding token and crc) in bytes
- * @return 0 if OK, -ECOMM if crc error, -ETIMEDOUT on other errors
+ * Return: 0 if OK, -ECOMM if crc error, -ETIMEDOUT on other errors
  */
 static int mmc_spi_readdata(struct udevice *dev,
 			    void *xbuf, u32 bcnt, u32 bsize)
@@ -239,7 +239,7 @@
  * @bcnt:	number of data blocks to transfer
  * @bsize:	size of actual data (excluding token and crc) in bytes
  * @multi:	indicate a transfer by multiple block write command (CMD25)
- * @return 0 if OK, -ECOMM if crc error, -ETIMEDOUT on other errors
+ * Return: 0 if OK, -ECOMM if crc error, -ETIMEDOUT on other errors
  */
 static int mmc_spi_writedata(struct udevice *dev, const void *xbuf,
 			     u32 bcnt, u32 bsize, int multi)
diff --git a/drivers/mmc/octeontx_hsmmc.c b/drivers/mmc/octeontx_hsmmc.c
index 2e569a9..f0519f0 100644
--- a/drivers/mmc/octeontx_hsmmc.c
+++ b/drivers/mmc/octeontx_hsmmc.c
@@ -780,7 +780,7 @@
  * @param	mmc	mmc device
  * @param	cmd	command information
  *
- * @return octeontx_mmc_cr_mods data structure with various quirks and flags
+ * Return: octeontx_mmc_cr_mods data structure with various quirks and flags
  */
 static struct octeontx_mmc_cr_mods
 octeontx_mmc_get_cr_mods(struct mmc *mmc, const struct mmc_cmd *cmd,
@@ -993,7 +993,7 @@
  * @param	mmc	mmc device
  * @param	timeout	timeout in ms
  *
- * @return	0 for success (could be DMA errors), -ETIMEDOUT on timeout
+ * Return:	0 for success (could be DMA errors), -ETIMEDOUT on timeout
  */
 
 /**
@@ -1042,7 +1042,7 @@
  * @param	timeout	timeout in ms
  * @param	verbose	true to print out error information
  *
- * @return	0 for success (could be DMA errors), -ETIMEDOUT on timeout
+ * Return:	0 for success (could be DMA errors), -ETIMEDOUT on timeout
  *		or -EIO if IO error.
  */
 static int octeontx_mmc_wait_dma(struct mmc *mmc, bool write, ulong timeout,
@@ -1140,7 +1140,7 @@
  * @param	data	data for read
  * @param	verbose	true to print out error information
  *
- * @return	number of blocks read or 0 if error
+ * Return:	number of blocks read or 0 if error
  */
 static int octeontx_mmc_read_blocks(struct mmc *mmc, struct mmc_cmd *cmd,
 				    struct mmc_data *data, bool verbose)
@@ -1342,7 +1342,7 @@
  * @param cmd	cmd to send and response
  * @param data	additional data
  * @param flags
- * @return	0 for success, otherwise error
+ * Return:	0 for success, otherwise error
  */
 static int octeontx_mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
 				 struct mmc_data *data)
@@ -2021,7 +2021,7 @@
  * @param	adj	parameter to tune
  * @param	opcode	command opcode to use
  *
- * @return	0 for success, -1 if tuning failed
+ * Return:	0 for success, -1 if tuning failed
  */
 static int octeontx_mmc_adjust_tuning(struct mmc *mmc, struct adj *adj,
 				      u32 opcode)
@@ -2426,7 +2426,7 @@
  * Calculate the clock period with rounding up
  *
  * @param	mmc	mmc device
- * @return	clock period in system clocks for clk_lo + clk_hi
+ * Return:	clock period in system clocks for clk_lo + clk_hi
  */
 static u32 octeontx_mmc_calc_clk_period(struct mmc *mmc)
 {
@@ -2916,7 +2916,7 @@
  *
  * @param	mmc	Pointer to mmc data structure
  *
- * @return	0 for success or -ETIMEDOUT on error
+ * Return:	0 for success or -ETIMEDOUT on error
  *
  * NOTE: On error a default value will be calculated.
  */
@@ -2942,7 +2942,7 @@
  * @param	mmc	mmc data structure
  * @param	delay	delay in picoseconds
  *
- * @return	Number of tap cycles or error if -1
+ * Return:	Number of tap cycles or error if -1
  */
 static int octeontx2_mmc_calc_delay(struct mmc *mmc, int delay)
 {
@@ -3136,7 +3136,7 @@
  *
  * @param	mmc	mmc data structure
  *
- * @return	0 for success, error otherwise
+ * Return:	0 for success, error otherwise
  */
 static int octeontx_mmc_set_output_bus_timing(struct mmc *mmc)
 {
@@ -3369,7 +3369,7 @@
  *
  * @param mmc	mmc device
  *
- * @return 0 for success
+ * Return: 0 for success
  *
  * NOTE: This will need to be updated when new silicon comes out
  */
@@ -3395,7 +3395,7 @@
  *
  * @param	mmc	mmc device
  *
- * @return	0 for success, error otherwise
+ * Return:	0 for success, error otherwise
  */
 static int octeontx_mmc_init_lowlevel(struct mmc *mmc)
 {
@@ -3453,7 +3453,7 @@
  *
  * @param	voltage	voltage in microvolts
  *
- * @return	MMC register value for voltage
+ * Return:	MMC register value for voltage
  */
 static u32 xlate_voltage(u32 voltage)
 {
@@ -3506,7 +3506,7 @@
  *
  * @param	dev	slot device to check
  *
- * @return	true if status reports "ok" or "okay" or if no status,
+ * Return:	true if status reports "ok" or "okay" or if no status,
  *		false otherwise.
  */
 static bool octeontx_mmc_get_valid(struct udevice *dev)
@@ -3524,7 +3524,7 @@
  *
  * @param	dev	slot device
  *
- * @return	0 on success, otherwise error
+ * Return:	0 on success, otherwise error
  */
 static int octeontx_mmc_get_config(struct udevice *dev)
 {
@@ -3705,7 +3705,7 @@
  *
  * @param	dev	mmc device
  *
- * @return	0 for success, error otherwise
+ * Return:	0 for success, error otherwise
  */
 static int octeontx_mmc_slot_probe(struct udevice *dev)
 {
@@ -3802,7 +3802,7 @@
  *
  * @param	dev	mmc host controller device
  *
- * @return	0 for success, -1 on error
+ * Return:	0 for success, -1 on error
  */
 static int octeontx_mmc_host_probe(struct udevice *dev)
 {
@@ -3910,7 +3910,7 @@
  *
  * @param dev:	MMC slot device
  *
- * @return 0 for success, -1 on failure
+ * Return: 0 for success, -1 on failure
  *
  * Do some pre-initialization before probing a slot.
  */
diff --git a/drivers/mmc/sdhci-adma.c b/drivers/mmc/sdhci-adma.c
index 2ec057f..8213223 100644
--- a/drivers/mmc/sdhci-adma.c
+++ b/drivers/mmc/sdhci-adma.c
@@ -64,7 +64,7 @@
 /**
  * sdhci_adma_init() - initialize the ADMA descriptor table
  *
- * @return pointer to the allocated descriptor table or NULL in case of an
+ * Return: pointer to the allocated descriptor table or NULL in case of an
  * error.
  */
 struct sdhci_adma_desc *sdhci_adma_init(void)