From: Andrew Lunn <andrew@lunn.ch>
Date: Mon, 24 Sep 2012 05:54:33 +0000 (+0200)
Subject: ARM: Orion5x: Fix too small coherent pool.
X-Git-Tag: upstream/snapshot3+hdmi~6641^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=84d5dfbf09be6be71d6dda63d99a8303e85663c7;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

ARM: Orion5x: Fix too small coherent pool.

Some Orion5x devices allocate their coherent buffers from atomic
context. Increase size of atomic coherent pool to make sure such the
allocations won't fail during boot.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
---

diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 410291c..a6cd14a 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -204,6 +204,13 @@ void __init orion5x_wdt_init(void)
 void __init orion5x_init_early(void)
 {
 	orion_time_set_base(TIMER_VIRT_BASE);
+
+	/*
+	 * Some Orion5x devices allocate their coherent buffers from atomic
+	 * context. Increase size of atomic coherent pool to make sure such
+	 * the allocations won't fail.
+	 */
+	init_dma_coherent_pool_size(SZ_1M);
 }
 
 int orion5x_tclk;