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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: viresh kumar <viresh.kumar@linaro.org>,
	Vinod Koul <vinod.koul@linux.intel.com>,
	linux-kernel@vger.kernel.org,
	spear-devel <spear-devel@list.st.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH] dw_dmac: call .probe after we have a device in place
Date: Tue,  6 Nov 2012 13:53:31 +0200	[thread overview]
Message-ID: <1352202811-29384-1-git-send-email-andriy.shevchenko@linux.intel.com> (raw)

If we don't yet have the platform device for the driver when it is being loaded
we fail to probe the driver. So instead of calling probe() directly we call
platform_driver_register(). It will call the probe() immediately if we have the
device but also makes the driver to work on platforms where the platform device
is created later.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/dma/dw_dmac.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 2c8096d..b0b301b 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1829,6 +1829,7 @@ MODULE_DEVICE_TABLE(of, dw_dma_id_table);
 #endif
 
 static struct platform_driver dw_driver = {
+	.probe		= dw_probe,
 	.remove		= __devexit_p(dw_remove),
 	.shutdown	= dw_shutdown,
 	.driver = {
@@ -1840,7 +1841,7 @@ static struct platform_driver dw_driver = {
 
 static int __init dw_init(void)
 {
-	return platform_driver_probe(&dw_driver, dw_probe);
+	return platform_driver_register(&dw_driver);
 }
 subsys_initcall(dw_init);
 
-- 
1.7.10.4


                 reply	other threads:[~2012-11-06 11:53 UTC|newest]

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