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[8/8] ARM: S5PV210: example of CMA private area for FIMC device on Goni board

Message ID 1313764064-9747-9-git-send-email-m.szyprowski@samsung.com (mailing list archive)
State RFC
Headers show

Commit Message

Marek Szyprowski Aug. 19, 2011, 2:27 p.m. UTC 
This patch is an example how device private CMA area can be activated.
It creates one CMA region and assigns it to the first s5p-fimc device on
Samsung Goni S5PC110 board.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
---
 arch/arm/mach-s5pv210/mach-goni.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
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Patch

diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index 14578f5..f766c45 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -26,6 +26,7 @@ 
 #include <linux/input.h>
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
+#include <linux/dma-contiguous.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -857,6 +858,9 @@  static void __init goni_map_io(void)
 static void __init goni_reserve(void)
 {
 	s5p_mfc_reserve_mem(0x43000000, 8 << 20, 0x51000000, 8 << 20);
+
+	/* Create private 16MiB contiguous memory area for s5p-fimc.0 device */
+	dma_declare_contiguous(&s5p_device_fimc0.dev, 16*SZ_1M, 0);
 }
 
 static void __init goni_machine_init(void)