OMAP1: Add support for SoC camera interface

This patch adds a definition of the OMAP1 camera interface platform device,
and a function that allows for providing a board specific platform data.
The device will be used with the upcoming OMAP1 SoC camera interface driver.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c
index aa0725608fb17ec51e15cc077f0f3198a19018ab..2c9a030c5595edb982ad61a2b73f16062daa5f7a 100644 (file)
--- a/arch/arm/mach-omap1/devices.c
+++ b/arch/arm/mach-omap1/devices.c
@@ -9,6 +9,7 @@
  * (at your option) any later version.
  */
 
+#include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -191,6 +192,48 @@ static inline void omap_init_spi100k(void)
 }
 #endif
 
+
+#define OMAP1_CAMERA_BASE      0xfffb6800
+#define OMAP1_CAMERA_IOSIZE    0x1c
+
+static struct resource omap1_camera_resources[] = {
+       [0] = {
+               .start  = OMAP1_CAMERA_BASE,
+               .end    = OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1,
+               .flags  = IORESOURCE_MEM,
+       },
+       [1] = {
+               .start  = INT_CAMERA,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32);
+
+static struct platform_device omap1_camera_device = {
+       .name           = "omap1-camera",
+       .id             = 0, /* This is used to put cameras on this interface */
+       .dev            = {
+               .dma_mask               = &omap1_camera_dma_mask,
+               .coherent_dma_mask      = DMA_BIT_MASK(32),
+       },
+       .num_resources  = ARRAY_SIZE(omap1_camera_resources),
+       .resource       = omap1_camera_resources,
+};
+
+void __init omap1_camera_init(void *info)
+{
+       struct platform_device *dev = &omap1_camera_device;
+       int ret;
+
+       dev->dev.platform_data = info;
+
+       ret = platform_device_register(dev);
+       if (ret)
+               dev_err(&dev->dev, "unable to register device: %d\n", ret);
+}
+
+
 /*-------------------------------------------------------------------------*/
 
 static inline void omap_init_sti(void) {}

diff --git a/arch/arm/mach-omap1/include/mach/camera.h b/arch/arm/mach-omap1/include/mach/camera.h
new file mode 100644 (file)
index 0000000..fd54b45
--- /dev/null
+++ b/arch/arm/mach-omap1/include/mach/camera.h
@@ -0,0 +1,11 @@
+#ifndef __ASM_ARCH_CAMERA_H_
+#define __ASM_ARCH_CAMERA_H_
+
+void omap1_camera_init(void *);
+
+static inline void omap1_set_camera_info(struct omap1_cam_platform_data *info)
+{
+       omap1_camera_init(info);
+}
+
+#endif /* __ASM_ARCH_CAMERA_H_ */