From: Dan Carpenter <dan.carpenter@linaro.org>
To: Nuno Sa <nuno.sa@analog.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>,
Michael Hennerich <Michael.Hennerich@analog.com>,
Jonathan Cameron <jic23@kernel.org>,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: [PATCH] iio: dac: adi-axi: fix a mistake in axi_dac_ext_info_set()
Date: Wed, 24 Apr 2024 14:45:30 +0300 [thread overview]
Message-ID: <df7c6e1b-b619-40c3-9881-838587ed15d4@moroto.mountain> (raw)
The last parameter of these axi_dac_(frequency|scale|phase)_set()
functions is supposed to be true for TONE_2 and false for TONE_1. The
bug is the last call where it passes "private - TONE_2". That
subtraction is going to be zero/false for TONE_2 and and -1/true for
TONE_1. Fix the bug, and re-write it as "private == TONE_2" so it's
more obvious what is happening.
Fixes: 4e3949a192e4 ("iio: dac: add support for AXI DAC IP core")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
This is from code review. Untested.
---
drivers/iio/dac/adi-axi-dac.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iio/dac/adi-axi-dac.c b/drivers/iio/dac/adi-axi-dac.c
index 9047c5aec0ff..880d83a014a1 100644
--- a/drivers/iio/dac/adi-axi-dac.c
+++ b/drivers/iio/dac/adi-axi-dac.c
@@ -383,15 +383,15 @@ static int axi_dac_ext_info_set(struct iio_backend *back, uintptr_t private,
case AXI_DAC_FREQ_TONE_1:
case AXI_DAC_FREQ_TONE_2:
return axi_dac_frequency_set(st, chan, buf, len,
- private - AXI_DAC_FREQ_TONE_1);
+ private == AXI_DAC_FREQ_TONE_2);
case AXI_DAC_SCALE_TONE_1:
case AXI_DAC_SCALE_TONE_2:
return axi_dac_scale_set(st, chan, buf, len,
- private - AXI_DAC_SCALE_TONE_1);
+ private == AXI_DAC_SCALE_TONE_2);
case AXI_DAC_PHASE_TONE_1:
case AXI_DAC_PHASE_TONE_2:
return axi_dac_phase_set(st, chan, buf, len,
- private - AXI_DAC_PHASE_TONE_2);
+ private == AXI_DAC_PHASE_TONE_2);
default:
return -EOPNOTSUPP;
}
--
2.43.0
next reply other threads:[~2024-04-24 11:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-24 11:45 Dan Carpenter [this message]
2024-04-24 12:30 ` [PATCH] iio: dac: adi-axi: fix a mistake in axi_dac_ext_info_set() Nuno Sá
2024-04-28 16:06 ` Jonathan Cameron
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=df7c6e1b-b619-40c3-9881-838587ed15d4@moroto.mountain \
--to=dan.carpenter@linaro.org \
--cc=Michael.Hennerich@analog.com \
--cc=jic23@kernel.org \
--cc=kernel-janitors@vger.kernel.org \
--cc=lars@metafoo.de \
--cc=linux-iio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nuno.sa@analog.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).