1 files changed, 47 insertions, 5 deletions

diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
index 141756f00ae5..510900569561 100644
--- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
+++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c
@@ -51,6 +51,10 @@
 #define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
 #define SDHC1_IRQ_GPIO IMX_GPIO_NR(2, 25)
 
+#define VERSION_MASK            0x7
+#define MOTHERBOARD_SHIFT       4
+#define EXPBOARD_SHIFT          0
+
 #define MOTHERBOARD_BIT2        (GPIO_PORTD + 31)
 #define MOTHERBOARD_BIT1        (GPIO_PORTD + 30)
 #define MOTHERBOARD_BIT0        (GPIO_PORTD + 29)
@@ -237,7 +241,7 @@ static struct mx2_camera_platform_data visstrim_camera = {
 static phys_addr_t mx2_camera_base __initdata;
 #define MX2_CAMERA_BUF_SIZE SZ_8M
 
-static void __init visstrim_camera_init(void)
+static void __init visstrim_analog_camera_init(void)
 {
         struct platform_device *pdev;
         int dma;
@@ -474,6 +478,27 @@ static void __init visstrim_deinterlace_init(void)
                 return;
 }
 
+/* Emma-PrP for format conversion */
+static void __init visstrim_emmaprp_init(void)
+{
+        struct platform_device *pdev;
+        int dma;
+
+        pdev = imx27_add_mx2_emmaprp();
+        if (IS_ERR(pdev))
+                return;
+
+        /*
+         * Use the same memory area as the analog camera since both
+         * devices are, by nature, exclusive.
+         */
+        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))
+                pr_err("Failed to declare memory for emmaprp\n");
+}
 
 /* Audio */
 static const struct snd_mx27vis_platform_data snd_mx27vis_pdata __initconst = {
@@ -507,13 +532,14 @@ static void __init visstrim_m10_revision(void)
         mo_version |= !gpio_get_value(MOTHERBOARD_BIT0);
 
         system_rev = 0x27000;
-        system_rev |= (mo_version << 4);
-        system_rev |= exp_version;
+        system_rev |= (mo_version << MOTHERBOARD_SHIFT);
+        system_rev |= (exp_version << EXPBOARD_SHIFT);
 }
 
 static void __init visstrim_m10_board_init(void)
 {
         int ret;
+        int mo_version;
 
         imx27_soc_init();
         visstrim_m10_revision();
@@ -546,8 +572,24 @@ 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();
-        visstrim_camera_init();
+
+        /* Use mother board version to decide what video devices we shall use */
+        mo_version = (system_rev >> MOTHERBOARD_SHIFT) & VERSION_MASK;
+        if (mo_version & 0x1) {
+                visstrim_emmaprp_init();
+
+                /*
+                 * Despite not being used, tvp5150 must be
+                 * powered on to avoid I2C problems. To minimize
+                 * power consupmtion keep reset enabled.
+                 */
+                gpio_set_value(TVP5150_PWDN, 1);
+                ndelay(1);
+                gpio_set_value(TVP5150_RSTN, 0);
+        } else {
+                visstrim_deinterlace_init();
+                visstrim_analog_camera_init();
+        }
         visstrim_coda_init();
 }