[ARM] pxa: V4L2 soc_camera driver for PXA270

This patch adds a driver for the Quick Capture Interface on the PXA270.
It is based on the original driver from Intel, but has been re-worked
multiple times since then, now it also supports the V4L2 API.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 3665e24..d6c05b6 100644 (file)
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -12,6 +12,7 @@
 #include <asm/arch/i2c.h>
 #include <asm/arch/ohci.h>
 #include <asm/arch/pxa27x_keypad.h>
+#include <asm/arch/camera.h>
 
 #include "devices.h"
 
@@ -566,6 +567,37 @@ struct platform_device pxa27x_device_ssp3 = {
        .resource       = pxa27x_resource_ssp3,
        .num_resources  = ARRAY_SIZE(pxa27x_resource_ssp3),
 };
+
+static struct resource pxa27x_resource_camera[] = {
+       [0] = {
+               .start  = 0x50000000,
+               .end    = 0x50000fff,
+               .flags  = IORESOURCE_MEM,
+       },
+       [1] = {
+               .start  = IRQ_CAMERA,
+               .end    = IRQ_CAMERA,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static u64 pxa27x_dma_mask_camera = DMA_BIT_MASK(32);
+
+static struct platform_device pxa27x_device_camera = {
+       .name           = "pxa27x-camera",
+       .id             = 0, /* This is used to put cameras on this interface */
+       .dev            = {
+               .dma_mask               = &pxa27x_dma_mask_camera,
+               .coherent_dma_mask      = 0xffffffff,
+       },
+       .num_resources  = ARRAY_SIZE(pxa27x_resource_camera),
+       .resource       = pxa27x_resource_camera,
+};
+
+void __init pxa_set_camera_info(struct pxacamera_platform_data *info)
+{
+       pxa_register_device(&pxa27x_device_camera, info);
+}
 #endif /* CONFIG_PXA27x || CONFIG_PXA3xx */
 
 #ifdef CONFIG_PXA3xx

diff --git a/include/asm-arm/arch-pxa/camera.h b/include/asm-arm/arch-pxa/camera.h
new file mode 100644 (file)
index 0000000..39516ce
--- /dev/null
+++ b/include/asm-arm/arch-pxa/camera.h
@@ -0,0 +1,48 @@
+/*
+    camera.h - PXA camera driver header file
+
+    Copyright (C) 2003, Intel Corporation
+    Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef __ASM_ARCH_CAMERA_H_
+#define __ASM_ARCH_CAMERA_H_
+
+#define PXA_CAMERA_MASTER      1
+#define PXA_CAMERA_DATAWIDTH_4 2
+#define PXA_CAMERA_DATAWIDTH_5 4
+#define PXA_CAMERA_DATAWIDTH_8 8
+#define PXA_CAMERA_DATAWIDTH_9 0x10
+#define PXA_CAMERA_DATAWIDTH_10        0x20
+#define PXA_CAMERA_PCLK_EN     0x40
+#define PXA_CAMERA_MCLK_EN     0x80
+#define PXA_CAMERA_PCP         0x100
+#define PXA_CAMERA_HSP         0x200
+#define PXA_CAMERA_VSP         0x400
+
+struct pxacamera_platform_data {
+       int (*init)(struct device *);
+       int (*power)(struct device *, int);
+       int (*reset)(struct device *, int);
+
+       unsigned long flags;
+       unsigned long mclk_10khz;
+};
+
+extern void pxa_set_camera_info(struct pxacamera_platform_data *);
+
+#endif /* __ASM_ARCH_CAMERA_H_ */

diff --cc include/asm-arm/arch-pxa/pxa2xx-gpio.h
Simple merge