FAILED: patch "[PATCH] iio: adis16480: Add debugfs_reg_access entry" failed to apply to 4.9-stable tree

The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 4c35b7a51e2f291471f7221d112c6a45c63e83bc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nuno=20S=C3=A1?= <[email protected]>
Date: Mon, 28 Oct 2019 17:33:49 +0100
Subject: [PATCH] iio: adis16480: Add debugfs_reg_access entry
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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.

index f1d52563951c..078d49deebd4 100644
@@ -923,6 +923,7 @@ static const struct iio_info adis16480_info = {
 	.read_raw = &adis16480_read_raw,
 	.write_raw = &adis16480_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
+	.debugfs_reg_access = adis_debugfs_reg_access,
 };
 
 static int adis16480_stop_device(struct iio_dev *indio_dev)