[U-Boot] [PATCH v4 6/6] cmd: adc: Use the sub-command infrastructure

[Boris Brezillon <boris.brezillon@bootlin.com>]

And you get sub-command auto-completion for free.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
---
Changes in v4:
-None

Changes in v3:
- Add Tom's R-b

Changes in v2:
- New patch
---
 cmd/adc.c | 33 +++++----------------------------
 1 file changed, 5 insertions(+), 28 deletions(-)

diff --git a/cmd/adc.c b/cmd/adc.c
index 2d635acbd950..381961cf51a4 100644
--- a/cmd/adc.c
+++ b/cmd/adc.c
@@ -146,37 +146,14 @@ static int do_adc_scan(cmd_tbl_t *cmdtp, int flag, int argc,
 	return CMD_RET_SUCCESS;
 }
 
-static cmd_tbl_t cmd_adc_sub[] = {
-	U_BOOT_CMD_MKENT(list, 1, 1, do_adc_list, "", ""),
-	U_BOOT_CMD_MKENT(info, 2, 1, do_adc_info, "", ""),
-	U_BOOT_CMD_MKENT(single, 3, 1, do_adc_single, "", ""),
-	U_BOOT_CMD_MKENT(scan, 3, 1, do_adc_scan, "", ""),
-};
-
-static int do_adc(cmd_tbl_t *cmdtp, int flag, int argc,
-		  char *const argv[])
-{
-	cmd_tbl_t *c;
-
-	if (argc < 2)
-		return CMD_RET_USAGE;
-
-	/* Strip off leading 'adc' command argument */
-	argc--;
-	argv++;
-
-	c = find_cmd_tbl(argv[0], &cmd_adc_sub[0], ARRAY_SIZE(cmd_adc_sub));
-
-	if (c)
-		return c->cmd(cmdtp, flag, argc, argv);
-	else
-		return CMD_RET_USAGE;
-}
-
 static char adc_help_text[] =
 	"list - list ADC devices\n"
 	"adc info <name> - Get ADC device info\n"
 	"adc single <name> <channel> - Get Single data of ADC device channel\n"
 	"adc scan <name> [channel mask] - Scan all [or masked] ADC channels";
 
-U_BOOT_CMD(adc, 4, 1, do_adc, "ADC sub-system", adc_help_text);
+U_BOOT_CMD_WITH_SUBCMDS(adc, "ADC sub-system", adc_help_text,
+	U_BOOT_SUBCMD_MKENT(list, 1, 1, do_adc_list),
+	U_BOOT_SUBCMD_MKENT(info, 2, 1, do_adc_info),
+	U_BOOT_SUBCMD_MKENT(single, 3, 1, do_adc_single),
+	U_BOOT_SUBCMD_MKENT(scan, 3, 1, do_adc_scan));
-- 
2.17.1