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Message-Id: <20210719144918.041544881@linuxfoundation.org>
Date: Mon, 19 Jul 2021 16:50:05 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Oliver Lang <Oliver.Lang@...senmetrawatt.com>,
Andy Shevchenko <andy.shevchenko@...il.com>,
Marc Kleine-Budde <mkl@...gutronix.de>, Stable@...r.kernel.org,
Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Nikita Travkin <nikita@...n.ru>
Subject: [PATCH 4.4 021/188] iio: ltr501: ltr501_read_ps(): add missing endianness conversion
From: Oliver Lang <Oliver.Lang@...senmetrawatt.com>
commit 71b33f6f93ef9462c84560e2236ed22209d26a58 upstream.
The PS ADC Channel data is spread over 2 registers in little-endian
form. This patch adds the missing endianness conversion.
Fixes: 2690be905123 ("iio: Add Lite-On ltr501 ambient light / proximity sensor driver")
Signed-off-by: Oliver Lang <Oliver.Lang@...senmetrawatt.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
Tested-by: Nikita Travkin <nikita@...n.ru> # ltr559
Link: https://lore.kernel.org/r/20210610134619.2101372-4-mkl@pengutronix.de
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/iio/light/ltr501.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -411,18 +411,19 @@ static int ltr501_read_als(struct ltr501
static int ltr501_read_ps(struct ltr501_data *data)
{
- int ret, status;
+ __le16 status;
+ int ret;
ret = ltr501_drdy(data, LTR501_STATUS_PS_RDY);
if (ret < 0)
return ret;
ret = regmap_bulk_read(data->regmap, LTR501_PS_DATA,
- &status, 2);
+ &status, sizeof(status));
if (ret < 0)
return ret;
- return status;
+ return le16_to_cpu(status);
}
static int ltr501_read_intr_prst(struct ltr501_data *data,
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