linux-kernel - [PATCH] video: ocfb: Fix data type warning

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Message-ID: <1417767510-31462-1-git-send-email-qiang2.chen@sonymobile.com>
Date:	Fri, 5 Dec 2014 16:18:30 +0800
From:	Qiang Chen <qiang2.chen@...ymobile.com>
To:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	Jingoo Han <jg1.han@...sung.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Stefan Kristiansson <stefan.kristiansson@...nalahti.fi>
CC:	<linux-fbdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Qiang Chen <qcwj.lk@...il.com>
Subject: [PATCH] video: ocfb: Fix data type warning

When allocate framebuffer memory using dma_alloc_coherent(),
we'd better use dma_addr_t instead of phys_addr_t. Because the
address we got in fact is DMA or bus address for the platform.

This patch also fixes below build warning:
drivers/video/fbdev/ocfb.c:335:2:
	warning: passing argument 3 of ‘dma_alloc_attrs’
	from incompatible pointer type [enabled by default]

Signed-off-by: Qiang Chen <qiang2.chen@...ymobile.com>
---
 drivers/video/fbdev/ocfb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/ocfb.c b/drivers/video/fbdev/ocfb.c
index 7f9dc9b..de98196 100644
--- a/drivers/video/fbdev/ocfb.c
+++ b/drivers/video/fbdev/ocfb.c
@@ -61,7 +61,7 @@ struct ocfb_dev {
 	/* flag indicating whether the regs are little endian accessed */
 	int little_endian;
 	/* Physical and virtual addresses of framebuffer */
-	phys_addr_t fb_phys;
+	dma_addr_t fb_phys;
 	void __iomem *fb_virt;
 	u32 pseudo_palette[PALETTE_SIZE];
 };
-- 
1.8.2.2

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