linux-kernel - [PATCH v3 3/3] dmaengine: mpc512x: initialize with subsys

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Date:	Thu, 24 Sep 2015 20:28:57 +0300
From:	Alexander Popov <alex.popov@...ux.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Anatolij Gustschin <agust@...x.de>,
	Gerhard Sittig <gsi@...x.de>, Rob Herring <robh@...nel.org>,
	Timur Tabi <timur@...i.org>,
	Grant Likely <grant.likely@...aro.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Alexander Popov <alex.popov@...ux.com>,
	linuxppc-dev@...ts.ozlabs.org, dmaengine@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/3] dmaengine: mpc512x: initialize with subsys_initcall()

Initialize Freescale MPC512x DMA driver with subsys_initcall()
to allow the depending drivers to call dma_request_slave_channel()
during their probe.

Signed-off-by: Alexander Popov <alex.popov@...ux.com>
---
 drivers/dma/mpc512x_dma.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index e6281e7..4f29d7c 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -1083,7 +1083,17 @@ static struct platform_driver mpc_dma_driver = {
 	},
 };
 
-module_platform_driver(mpc_dma_driver);
+static int __init mpc_dma_driver_init(void)
+{
+	return platform_driver_register(&mpc_dma_driver);
+}
+subsys_initcall(mpc_dma_driver_init);
+
+static void __exit mpc_dma_driver_exit(void)
+{
+	platform_driver_unregister(&mpc_dma_driver);
+}
+module_exit(mpc_dma_driver_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Piotr Ziecik <kosmo@...ihalf.com>");
-- 
1.9.1

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