[PATCH 8/8] ARM: S5PV210: example of CMA private area for FIMC device on Goni board
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: 2011-08-19 14:29:42
Also in:
linux-arm-kernel, linux-media, lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
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(-)
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)
--
1.7.1.569.g6f426
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