[PATCH v4 1/3] ARM: imx27_visstrim_m10: Do not reserve DMA pools on board file

[Fabio Estevam]

Do not reserve DMA pools on board file as this can be done via CMA.

The motivation for doing this is to allow to register the VPU driver via a common
SoC file instead of per board.

Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
---
This applies against 20121115 linux-next.

Changes since v3:
- Remove all the DMA pools
Changes since v2:
- No changes. Newly introduced on this series
 arch/arm/mach-imx/mach-imx27_visstrim_m10.c |   66 ++-------------------------
 1 file changed, 3 insertions(+), 63 deletions(-)

diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
index b744226..914b2f8 100644
--- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
+++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
@@ -30,7 +30,6 @@
 #include <linux/input.h>
 #include <linux/gpio.h>
 #include <linux/delay.h>
-#include <linux/dma-mapping.h>
 #include <linux/leds.h>
 #include <linux/platform_data/asoc-mx27vis.h>
 #include <media/soc_camera.h>
@@ -39,7 +38,6 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
 #include <asm/system_info.h>
-#include <asm/memblock.h>
 
 #include "common.h"
 #include "devices-imx27.h"
@@ -234,14 +232,8 @@ static struct mx2_camera_platform_data visstrim_camera = {
 	.clk = 100000,
 };
 
-static phys_addr_t mx2_camera_base __initdata;
-#define MX2_CAMERA_BUF_SIZE SZ_8M
-
 static void __init visstrim_camera_init(void)
 {
-	struct platform_device *pdev;
-	int dma;
-
 	gpio_set_value(TVP5150_PWDN, 1);
 	ndelay(1);
 	gpio_set_value(TVP5150_RSTN, 0);
@@ -249,23 +241,7 @@ static void __init visstrim_camera_init(void)
 	gpio_set_value(TVP5150_RSTN, 1);
 	ndelay(200000);
 
-	pdev = imx27_add_mx2_camera(&visstrim_camera);
-	if (IS_ERR(pdev))
-		return;
-
-	dma = dma_declare_coherent_memory(&pdev->dev,
-				mx2_camera_base, mx2_camera_base,
-				MX2_CAMERA_BUF_SIZE,
-				DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
-	if (!(dma & DMA_MEMORY_MAP))
-		return;
-}
-
-static void __init visstrim_reserve(void)
-{
-	/* reserve 4 MiB for mx2-camera */
-	mx2_camera_base = arm_memblock_steal(3 * MX2_CAMERA_BUF_SIZE,
-			MX2_CAMERA_BUF_SIZE);
+	imx27_add_mx2_camera(&visstrim_camera);
 }
 
 /* GPIOs used as events for applications */
@@ -434,47 +410,12 @@ static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
 	.flags			= IMX_SSI_DMA | IMX_SSI_SYN,
 };
 
-/* coda */
-
-static void __init visstrim_coda_init(void)
-{
-	struct platform_device *pdev;
-	int dma;
-
-	pdev = imx27_add_coda();
-	dma = dma_declare_coherent_memory(&pdev->dev,
-					  mx2_camera_base + MX2_CAMERA_BUF_SIZE,
-					  mx2_camera_base + MX2_CAMERA_BUF_SIZE,
-					  MX2_CAMERA_BUF_SIZE,
-					  DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
-	if (!(dma & DMA_MEMORY_MAP))
-		return;
-}
-
 /* DMA deinterlace */
 static struct platform_device visstrim_deinterlace = {
 	.name = "m2m-deinterlace",
 	.id = 0,
 };
 
-static void __init visstrim_deinterlace_init(void)
-{
-	int ret = -ENOMEM;
-	struct platform_device *pdev = &visstrim_deinterlace;
-	int dma;
-
-	ret = platform_device_register(pdev);
-
-	dma = dma_declare_coherent_memory(&pdev->dev,
-					  mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
-					  mx2_camera_base + 2 * MX2_CAMERA_BUF_SIZE,
-					  MX2_CAMERA_BUF_SIZE,
-					  DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
-	if (!(dma & DMA_MEMORY_MAP))
-		return;
-}
-
-
 /* Audio */
 static const struct snd_mx27vis_platform_data snd_mx27vis_pdata __initconst = {
 	.amp_gain0_gpio = AMP_GAIN_0,
@@ -546,9 +487,9 @@ static void __init visstrim_m10_board_init(void)
 	platform_device_register_resndata(NULL, "soc-camera-pdrv", 0, NULL, 0,
 				      &iclink_tvp5150, sizeof(iclink_tvp5150));
 	gpio_led_register_device(0, &visstrim_m10_led_data);
-	visstrim_deinterlace_init();
+	platform_device_register(&visstrim_deinterlace);
 	visstrim_camera_init();
-	visstrim_coda_init();
+	imx27_add_coda();
 }
 
 static void __init visstrim_m10_timer_init(void)
@@ -562,7 +503,6 @@ static struct sys_timer visstrim_m10_timer = {
 
 MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
 	.atag_offset = 0x100,
-	.reserve = visstrim_reserve,
 	.map_io = mx27_map_io,
 	.init_early = imx27_init_early,
 	.init_irq = mx27_init_irq,
-- 
1.7.9.5


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