linux-kernel - [RFC 4/4] iio: input-bridge: make the iio-input-bridge driver called by iio-core

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Message-Id: <f5c1baba29b0b1e82d49190c96a83cbef3a1cd6f.1552941573.git.hns@goldelico.com>
Date:   Mon, 18 Mar 2019 21:39:34 +0100
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     letux-kernel@...nphoenux.org, kernel@...a-handheld.com,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        "H. Nikolaus Schaller" <hns@...delico.com>
Subject: [RFC 4/4] iio: input-bridge: make the iio-input-bridge driver called by iio-core

This adds the iio-input-bridge to iio device (un)registering so
that accelerometers are located and made present an input event
device.

Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
---
 drivers/iio/industrialio-core.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 4700fd5d8c90..81f412b41a78 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -29,6 +29,7 @@
 #include <linux/iio/iio.h>
 #include "iio_core.h"
 #include "iio_core_trigger.h"
+#include "industrialio-inputbridge.h"
 #include <linux/iio/sysfs.h>
 #include <linux/iio/events.h>
 #include <linux/iio/buffer.h>
@@ -1723,6 +1724,15 @@ int __iio_device_register(struct iio_dev *indio_dev, struct module *this_mod)
 	if (ret < 0)
 		goto error_unreg_eventset;
 
+	ret = iio_device_register_inputbridge(indio_dev);
+	if (ret) {
+		dev_err(indio_dev->dev.parent,
+			"Failed to register as input driver\n");
+		device_del(&indio_dev->dev);
+
+		return ret;
+	}
+
 	return 0;
 
 error_unreg_eventset:
@@ -1745,6 +1755,8 @@ void iio_device_unregister(struct iio_dev *indio_dev)
 {
 	mutex_lock(&indio_dev->info_exist_lock);
 
+	iio_device_unregister_inputbridge(indio_dev);
+
 	cdev_device_del(&indio_dev->chrdev, &indio_dev->dev);
 
 	iio_device_unregister_debugfs(indio_dev);
-- 
2.19.1