linux-kernel - [PATCH v5 WIP 4/5] i2c-parport: use new parport device model

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Date:	Wed,  6 May 2015 15:46:16 +0530
From:	Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:	Greg KH <gregkh@...uxfoundation.org>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Jean Delvare <jdelvare@...e.de>
Cc:	linux-kernel@...r.kernel.org,
	Sudip Mukherjee <sudipm.mukherjee@...il.com>
Subject: [PATCH v5 WIP 4/5] i2c-parport: use new parport device model

modify i2c-parport driver to use the new parallel port device model.

Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
---
 drivers/i2c/busses/i2c-parport.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-parport.c b/drivers/i2c/busses/i2c-parport.c
index a9b25c3..6db5b45 100644
--- a/drivers/i2c/busses/i2c-parport.c
+++ b/drivers/i2c/busses/i2c-parport.c
@@ -163,6 +163,11 @@ static void i2c_parport_irq(void *data)
 			"SMBus alert received but no ARA client!\n");
 }
 
+static struct pardev_cb i2c_parport_cb = {
+	.flags = PARPORT_FLAG_EXCL,
+	.irq_func = i2c_parport_irq,
+};
+
 static void i2c_parport_attach(struct parport *port)
 {
 	struct i2c_par *adapter;
@@ -184,11 +189,12 @@ static void i2c_parport_attach(struct parport *port)
 		printk(KERN_ERR "i2c-parport: Failed to kzalloc\n");
 		return;
 	}
+	i2c_parport_cb.private = adapter;
 
 	pr_debug("i2c-parport: attaching to %s\n", port->name);
 	parport_disable_irq(port);
-	adapter->pdev = parport_register_device(port, "i2c-parport",
-		NULL, NULL, i2c_parport_irq, PARPORT_FLAG_EXCL, adapter);
+	adapter->pdev = parport_register_dev_model(port, "i2c-parport",
+						   &i2c_parport_cb, i);
 	if (!adapter->pdev) {
 		printk(KERN_ERR "i2c-parport: Unable to register with parport\n");
 		goto err_free;
@@ -281,10 +287,18 @@ static void i2c_parport_detach(struct parport *port)
 	mutex_unlock(&adapter_list_lock);
 }
 
+static int i2c_parport_probe(struct pardevice *par_dev)
+{
+	if (strcmp(par_dev->name, "i2c-parport"))
+		return -ENODEV;
+	return 0;
+}
+
 static struct parport_driver i2c_parport_driver = {
 	.name	= "i2c-parport",
-	.attach	= i2c_parport_attach,
+	.match_port = i2c_parport_attach,
 	.detach	= i2c_parport_detach,
+	.probe	= i2c_parport_probe,
 };
 
 /* ----- Module loading, unloading and information ------------------------ */
-- 
1.8.1.2

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