From: Oleksij Rempel <o.rempel@pengutronix.de>
Date: Tue, 10 Feb 2026 13:51:00 +0000 (+0100)
Subject: iio: dac: ds4424: ratelimit read errors and use device context
X-Git-Tag: v7.1-rc1~17^2~120^2~25
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c071adeb72739306bf2960a8f703206979c65196;p=thirdparty%2Fkernel%2Fstable.git

iio: dac: ds4424: ratelimit read errors and use device context

Replace pr_err() with dev_err_ratelimited() in the RAW read path to avoid
log spam on repeated I2C failures and to include the device context.

Use %pe to print errno names for faster debugging. Use the parent
device context to identify the physical hardware causing the error.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/dac/ds4424.c b/drivers/iio/dac/ds4424.c
index c15eb7b5eb960..9d33a810336f7 100644
--- a/drivers/iio/dac/ds4424.c
+++ b/drivers/iio/dac/ds4424.c
@@ -99,8 +99,9 @@ static int ds4424_read_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_RAW:
 		ret = ds4424_get_value(indio_dev, &regval, chan->channel);
 		if (ret < 0) {
-			pr_err("%s : ds4424_get_value returned %d\n",
-							__func__, ret);
+			dev_err_ratelimited(indio_dev->dev.parent,
+					    "Failed to read channel %d: %pe\n",
+					    chan->channel, ERR_PTR(ret));
 			return ret;
 		}