61 lines
1.8 KiB
Diff
61 lines
1.8 KiB
Diff
From 68c5b5bc333fec414046c083d5fa2c3e188b96ca Mon Sep 17 00:00:00 2001
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From: Vyacheslav Bocharov <adeep@lexina.in>
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Date: Sun, 3 Jul 2022 15:24:11 +0300
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Subject: [PATCH 4/6] cmd: fix do_adc_single()
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The source code contains an error:
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- argv[2] contains <channel> arg, variable for env_set is in argv[3]
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- number of args is 4
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Revert 54d24d72601321f4470c4edf31c6b29adae424a7
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cmd: simplify do_adc_single()
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Fixes 9de612ae4ded53f742f5f99929c06d0839471ced
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cmd: adc: Add support for storing ADC result in env variable
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---
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cmd/adc.c | 9 +++++++--
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1 file changed, 7 insertions(+), 2 deletions(-)
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diff --git a/cmd/adc.c b/cmd/adc.c
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index 195efa8661..1c5d3e10a3 100644
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--- a/cmd/adc.c
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+++ b/cmd/adc.c
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@@ -71,6 +71,7 @@ static int do_adc_info(struct cmd_tbl *cmdtp, int flag, int argc,
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static int do_adc_single(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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+ char *varname = NULL;
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struct udevice *dev;
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unsigned int data;
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int ret, uV, val;
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@@ -78,6 +79,9 @@ static int do_adc_single(struct cmd_tbl *cmdtp, int flag, int argc,
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if (argc < 3)
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return CMD_RET_USAGE;
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+ if (argc >= 4)
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+ varname = argv[3];
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+
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ret = adc_channel_single_shot(argv[1], simple_strtol(argv[2], NULL, 0),
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&data);
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if (ret) {
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@@ -95,7 +99,8 @@ static int do_adc_single(struct cmd_tbl *cmdtp, int flag, int argc,
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printf("%u\n", data);
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}
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- env_set_ulong(argv[2], val);
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+ if (varname)
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+ env_set_ulong(varname, val);
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return CMD_RET_SUCCESS;
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}
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@@ -160,5 +165,5 @@ static char adc_help_text[] =
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U_BOOT_CMD_WITH_SUBCMDS(adc, "ADC sub-system", adc_help_text,
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U_BOOT_SUBCMD_MKENT(list, 1, 1, do_adc_list),
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U_BOOT_SUBCMD_MKENT(info, 2, 1, do_adc_info),
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- U_BOOT_SUBCMD_MKENT(single, 3, 1, do_adc_single),
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+ U_BOOT_SUBCMD_MKENT(single, 4, 1, do_adc_single),
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U_BOOT_SUBCMD_MKENT(scan, 3, 1, do_adc_scan));
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--
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2.30.2
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