netdev - [PATCH] net: macb: allow deffered probe of the driver

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Message-ID: <1421947441.717.4.camel@uti.ro>
Date:	Thu, 22 Jan 2015 17:31:05 +0000
From:	Nicolae Rosia <nicolae.rosia@...tsign.ro>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"nicolas.ferre@...el.com" <nicolas.ferre@...el.com>
Subject: [PATCH] net: macb: allow deffered probe of the driver

The driver is trying to acquire clocks which maybe
are not available yet. Allow the driver to request
deffered probe by providing a probe function and
registering it with module_platform_driver. [1]
This patch is based on 3.19-rc5.

[1] https://lkml.org/lkml/2013/9/23/118

Signed-off-by: Nicolae Rosia <nicolae.rosia@...tsign.ro>
---
 drivers/net/ethernet/cadence/macb.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/cadence/macb.c
b/drivers/net/ethernet/cadence/macb.c
index 3767271..4dfcd66 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -2148,7 +2148,7 @@ static void macb_probe_queues(void __iomem *mem,
 			(*num_queues)++;
 }
 
-static int __init macb_probe(struct platform_device *pdev)
+static int macb_probe(struct platform_device *pdev)
 {
 	struct macb_platform_data *pdata;
 	struct resource *regs;
@@ -2386,7 +2386,7 @@ err_out:
 	return err;
 }
 
-static int __exit macb_remove(struct platform_device *pdev)
+static int macb_remove(struct platform_device *pdev)
 {
 	struct net_device *dev;
 	struct macb *bp;
@@ -2449,7 +2449,8 @@ static int macb_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(macb_pm_ops, macb_suspend, macb_resume);
 
 static struct platform_driver macb_driver = {
-	.remove		= __exit_p(macb_remove),
+	.probe		= macb_probe,
+	.remove		= macb_remove,
 	.driver		= {
 		.name		= "macb",
 		.of_match_table	= of_match_ptr(macb_dt_ids),
@@ -2457,7 +2458,7 @@ static struct platform_driver macb_driver = {
 	},
 };
 
-module_platform_driver_probe(macb_driver, macb_probe);
+module_platform_driver(macb_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Cadence MACB/GEM Ethernet driver");
-- 
2.1.0