linux-kernel - [PATCH 4.4 127/162] iio: adis16480: Add debugfs_reg

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Message-Id: <20191219183215.505528223@linuxfoundation.org>
Date:   Thu, 19 Dec 2019 19:33:55 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Nuno Sá <nuno.sa@...log.com>,
        Stable@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 127/162] iio: adis16480: Add debugfs_reg_access entry

From: Nuno Sá <nuno.sa@...log.com>

[ Upstream commit 4c35b7a51e2f291471f7221d112c6a45c63e83bc ]

The driver is defining debugfs entries by calling
`adis16480_debugfs_init()`. However, those entries are attached to the
iio_dev debugfs entry which won't exist if no debugfs_reg_access
callback is provided.

Fixes: 2f3abe6cbb6c ("iio:imu: Add support for the ADIS16480 and similar IMUs")
Signed-off-by: Nuno Sá <nuno.sa@...log.com>
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/iio/imu/adis16480.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
index 778a46247f8de..eeed374ebc6c5 100644
--- a/drivers/iio/imu/adis16480.c
+++ b/drivers/iio/imu/adis16480.c
@@ -724,6 +724,7 @@ static const struct iio_info adis16480_info = {
 	.write_raw = &adis16480_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
 	.driver_module = THIS_MODULE,
+	.debugfs_reg_access = adis_debugfs_reg_access,
 };
 
 static int adis16480_stop_device(struct iio_dev *indio_dev)
-- 
2.20.1