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Commit c93cc614 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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[media] staging/media: remove deprecated mx3 driver 

Remove this deprecated old driver.
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 6b879edf
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drivers/staging/media/Kconfig
View file @ c93cc614
...@@ -27,8 +27,6 @@ source "drivers/staging/media/davinci_vpfe/Kconfig" ...@@ -27,8 +27,6 @@ source "drivers/staging/media/davinci_vpfe/Kconfig"
source "drivers/staging/media/mn88472/Kconfig" source "drivers/staging/media/mn88472/Kconfig"
source "drivers/staging/media/mx3/Kconfig"
source "drivers/staging/media/omap1/Kconfig" source "drivers/staging/media/omap1/Kconfig"
source "drivers/staging/media/omap4iss/Kconfig" source "drivers/staging/media/omap4iss/Kconfig"
......
drivers/staging/media/Makefile
View file @ c93cc614
...@@ -2,7 +2,6 @@ obj-$(CONFIG_I2C_BCM2048) += bcm2048/ ...@@ -2,7 +2,6 @@ obj-$(CONFIG_I2C_BCM2048) += bcm2048/
obj-$(CONFIG_DVB_CXD2099) += cxd2099/ obj-$(CONFIG_DVB_CXD2099) += cxd2099/
obj-$(CONFIG_LIRC_STAGING) += lirc/ obj-$(CONFIG_LIRC_STAGING) += lirc/
obj-$(CONFIG_VIDEO_DM365_VPFE) += davinci_vpfe/ obj-$(CONFIG_VIDEO_DM365_VPFE) += davinci_vpfe/
obj-$(CONFIG_VIDEO_MX3) += mx3/
obj-$(CONFIG_VIDEO_OMAP1) += omap1/ obj-$(CONFIG_VIDEO_OMAP1) += omap1/
obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/ obj-$(CONFIG_VIDEO_OMAP4) += omap4iss/
obj-$(CONFIG_DVB_MN88472) += mn88472/ obj-$(CONFIG_DVB_MN88472) += mn88472/
......
drivers/staging/media/mx3/Kconfig deleted 100644 → 0
View file @ 6b879edf
config VIDEO_MX3
tristate "i.MX3x Camera Sensor Interface driver"
depends on VIDEO_DEV && MX3_IPU && SOC_CAMERA
depends on MX3_IPU || COMPILE_TEST
depends on HAS_DMA
select VIDEOBUF2_DMA_CONTIG
---help---
This is a v4l2 driver for the i.MX3x Camera Sensor Interface
This driver is deprecated: it should become a stand-alone driver
instead of using the soc-camera framework.
Unless someone is willing to take this on (unlikely with such
ancient hardware) it is going to be removed from the kernel
soon.
drivers/staging/media/mx3/Makefile deleted 100644 → 0
View file @ 6b879edf
# Makefile for i.MX3x Camera Sensor driver
obj-$(CONFIG_VIDEO_MX3) += mx3_camera.o
drivers/staging/media/mx3/TODO deleted 100644 → 0
View file @ 6b879edf
This driver is deprecated: it should become a stand-alone driver instead of
using the soc-camera framework.
Unless someone is willing to take this on (unlikely with such ancient
hardware) it is going to be removed from the kernel soon.
Note that trivial patches will not be accepted anymore, only a full conversion.
If you want to convert this driver, please contact the linux-media mailinglist
(see http://linuxtv.org/lists.php).
drivers/staging/media/mx3/mx3_camera.c deleted 100644 → 0
View file @ 6b879edf
/*
* V4L2 Driver for i.MX3x camera host
*
* Copyright (C) 2008
* Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/videodev2.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/vmalloc.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/dma/ipu-dma.h>
#include <media/v4l2-common.h>
#include <media/v4l2-dev.h>
#include <media/videobuf2-dma-contig.h>
#include <media/soc_camera.h>
#include <media/drv-intf/soc_mediabus.h>
#include <linux/platform_data/media/camera-mx3.h>
#include <linux/platform_data/dma-imx.h>
#define MX3_CAM_DRV_NAME "mx3-camera"
/* CMOS Sensor Interface Registers */
#define CSI_REG_START 0x60
#define CSI_SENS_CONF (0x60 - CSI_REG_START)
#define CSI_SENS_FRM_SIZE (0x64 - CSI_REG_START)
#define CSI_ACT_FRM_SIZE (0x68 - CSI_REG_START)
#define CSI_OUT_FRM_CTRL (0x6C - CSI_REG_START)
#define CSI_TST_CTRL (0x70 - CSI_REG_START)
#define CSI_CCIR_CODE_1 (0x74 - CSI_REG_START)
#define CSI_CCIR_CODE_2 (0x78 - CSI_REG_START)
#define CSI_CCIR_CODE_3 (0x7C - CSI_REG_START)
#define CSI_FLASH_STROBE_1 (0x80 - CSI_REG_START)
#define CSI_FLASH_STROBE_2 (0x84 - CSI_REG_START)
#define CSI_SENS_CONF_VSYNC_POL_SHIFT 0
#define CSI_SENS_CONF_HSYNC_POL_SHIFT 1
#define CSI_SENS_CONF_DATA_POL_SHIFT 2
#define CSI_SENS_CONF_PIX_CLK_POL_SHIFT 3
#define CSI_SENS_CONF_SENS_PRTCL_SHIFT 4
#define CSI_SENS_CONF_SENS_CLKSRC_SHIFT 7
#define CSI_SENS_CONF_DATA_FMT_SHIFT 8
#define CSI_SENS_CONF_DATA_WIDTH_SHIFT 10
#define CSI_SENS_CONF_EXT_VSYNC_SHIFT 15
#define CSI_SENS_CONF_DIVRATIO_SHIFT 16
#define CSI_SENS_CONF_DATA_FMT_RGB_YUV444 (0UL << CSI_SENS_CONF_DATA_FMT_SHIFT)
#define CSI_SENS_CONF_DATA_FMT_YUV422 (2UL << CSI_SENS_CONF_DATA_FMT_SHIFT)
#define CSI_SENS_CONF_DATA_FMT_BAYER (3UL << CSI_SENS_CONF_DATA_FMT_SHIFT)
#define MAX_VIDEO_MEM 16
struct mx3_camera_buffer {
/* common v4l buffer stuff -- must be first */
struct vb2_v4l2_buffer vb;
struct list_head queue;
/* One descriptot per scatterlist (per frame) */
struct dma_async_tx_descriptor *txd;
/* We have to "build" a scatterlist ourselves - one element per frame */
struct scatterlist sg;
};
/**
* struct mx3_camera_dev - i.MX3x camera (CSI) object
* @dev: camera device, to which the coherent buffer is attached
* @icd: currently attached camera sensor
* @clk: pointer to clock
* @base: remapped register base address
* @pdata: platform data
* @platform_flags: platform flags
* @mclk: master clock frequency in Hz
* @capture: list of capture videobuffers
* @lock: protects video buffer lists
* @active: active video buffer
* @idmac_channel: array of pointers to IPU DMAC DMA channels
* @soc_host: embedded soc_host object
*/
struct mx3_camera_dev {
/*
* i.MX3x is only supposed to handle one camera on its Camera Sensor
* Interface. If anyone ever builds hardware to enable more than one
* camera _simultaneously_, they will have to modify this driver too
*/
struct clk *clk;
void __iomem *base;
struct mx3_camera_pdata *pdata;
unsigned long platform_flags;
unsigned long mclk;
u16 width_flags; /* max 15 bits */
struct list_head capture;
spinlock_t lock; /* Protects video buffer lists */
struct mx3_camera_buffer *active;
size_t buf_total;
struct vb2_alloc_ctx *alloc_ctx;
enum v4l2_field field;
int sequence;
/* IDMAC / dmaengine interface */
struct idmac_channel *idmac_channel[1]; /* We need one channel */
struct soc_camera_host soc_host;
};
struct dma_chan_request {
struct mx3_camera_dev *mx3_cam;
enum ipu_channel id;
};
static u32 csi_reg_read(struct mx3_camera_dev *mx3, off_t reg)
{
return __raw_readl(mx3->base + reg);
}
static void csi_reg_write(struct mx3_camera_dev *mx3, u32 value, off_t reg)
{
__raw_writel(value, mx3->base + reg);
}
static struct mx3_camera_buffer *to_mx3_vb(struct vb2_v4l2_buffer *vb)
{
return container_of(vb, struct mx3_camera_buffer, vb);
}
/* Called from the IPU IDMAC ISR */
static void mx3_cam_dma_done(void *arg)
{
struct idmac_tx_desc *desc = to_tx_desc(arg);
struct dma_chan *chan = desc->txd.chan;
struct idmac_channel *ichannel = to_idmac_chan(chan);
struct mx3_camera_dev *mx3_cam = ichannel->client;
dev_dbg(chan->device->dev, "callback cookie %d, active DMA %pad\n",
desc->txd.cookie, mx3_cam->active ? &sg_dma_address(&mx3_cam->active->sg) : NULL);
spin_lock(&mx3_cam->lock);
if (mx3_cam->active) {
struct vb2_v4l2_buffer *vb = &mx3_cam->active->vb;
struct mx3_camera_buffer *buf = to_mx3_vb(vb);
list_del_init(&buf->queue);
vb->vb2_buf.timestamp = ktime_get_ns();
vb->field = mx3_cam->field;
vb->sequence = mx3_cam->sequence++;
vb2_buffer_done(&vb->vb2_buf, VB2_BUF_STATE_DONE);
}
if (list_empty(&mx3_cam->capture)) {
mx3_cam->active = NULL;
spin_unlock(&mx3_cam->lock);
/*
* stop capture - without further buffers IPU_CHA_BUF0_RDY will
* not get updated
*/
return;
}
mx3_cam->active = list_entry(mx3_cam->capture.next,
struct mx3_camera_buffer, queue);
spin_unlock(&mx3_cam->lock);
}
/*
* Videobuf operations
*/
/*
* Calculate the __buffer__ (not data) size and number of buffers.
*/
static int mx3_videobuf_setup(struct vb2_queue *vq,
unsigned int *count, unsigned int *num_planes,
unsigned int sizes[], void *alloc_ctxs[])
{
struct soc_camera_device *icd = soc_camera_from_vb2q(vq);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
if (!mx3_cam->idmac_channel[0])
return -EINVAL;
alloc_ctxs[0] = mx3_cam->alloc_ctx;
if (!vq->num_buffers)
mx3_cam->sequence = 0;
if (!*count)
*count = 2;
/* Called from VIDIOC_REQBUFS or in compatibility mode */
if (!*num_planes)
sizes[0] = icd->sizeimage;
else if (sizes[0] < icd->sizeimage)
return -EINVAL;
/* If *num_planes != 0, we have already verified *count. */
if (sizes[0] * *count + mx3_cam->buf_total > MAX_VIDEO_MEM * 1024 * 1024)
*count = (MAX_VIDEO_MEM * 1024 * 1024 - mx3_cam->buf_total) /
sizes[0];
*num_planes = 1;
return 0;
}
static enum pixel_fmt fourcc_to_ipu_pix(__u32 fourcc)
{
/* Add more formats as need arises and test possibilities appear... */
switch (fourcc) {
case V4L2_PIX_FMT_RGB24:
return IPU_PIX_FMT_RGB24;
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_RGB565:
default:
return IPU_PIX_FMT_GENERIC;
}
}
static void mx3_videobuf_queue(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
struct mx3_camera_buffer *buf = to_mx3_vb(vbuf);
struct scatterlist *sg = &buf->sg;
struct dma_async_tx_descriptor *txd;
struct idmac_channel *ichan = mx3_cam->idmac_channel[0];
struct idmac_video_param *video = &ichan->params.video;
const struct soc_mbus_pixelfmt *host_fmt = icd->current_fmt->host_fmt;
dma_cookie_t cookie;
size_t new_size;
new_size = icd->sizeimage;
if (vb2_plane_size(vb, 0) < new_size) {
dev_err(icd->parent, "Buffer #%d too small (%lu < %zu)\n",
vbuf->vb2_buf.index, vb2_plane_size(vb, 0), new_size);
goto error;
}
if (!buf->txd) {
sg_dma_address(sg) = vb2_dma_contig_plane_dma_addr(vb, 0);
sg_dma_len(sg) = new_size;
txd = dmaengine_prep_slave_sg(
&ichan->dma_chan, sg, 1, DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT);
if (!txd)
goto error;
txd->callback_param = txd;
txd->callback = mx3_cam_dma_done;
buf->txd = txd;
} else {
txd = buf->txd;
}
vb2_set_plane_payload(vb, 0, new_size);
/* This is the configuration of one sg-element */
video->out_pixel_fmt = fourcc_to_ipu_pix(host_fmt->fourcc);
if (video->out_pixel_fmt == IPU_PIX_FMT_GENERIC) {
/*
* If the IPU DMA channel is configured to transfer generic
* 8-bit data, we have to set up the geometry parameters
* correctly, according to the current pixel format. The DMA
* horizontal parameters in this case are expressed in bytes,
* not in pixels.
*/
video->out_width = icd->bytesperline;
video->out_height = icd->user_height;
video->out_stride = icd->bytesperline;
} else {
/*
* For IPU known formats the pixel unit will be managed
* successfully by the IPU code
*/
video->out_width = icd->user_width;
video->out_height = icd->user_height;
video->out_stride = icd->user_width;
}
#ifdef DEBUG
/* helps to see what DMA actually has written */
if (vb2_plane_vaddr(vb, 0))
memset(vb2_plane_vaddr(vb, 0), 0xaa, vb2_get_plane_payload(vb, 0));
#endif
spin_lock_irq(&mx3_cam->lock);
list_add_tail(&buf->queue, &mx3_cam->capture);
if (!mx3_cam->active)
mx3_cam->active = buf;
spin_unlock_irq(&mx3_cam->lock);
cookie = txd->tx_submit(txd);
dev_dbg(icd->parent, "Submitted cookie %d DMA %pad\n",
cookie, &sg_dma_address(&buf->sg));
if (cookie >= 0)
return;
spin_lock_irq(&mx3_cam->lock);
/* Submit error */
list_del_init(&buf->queue);
if (mx3_cam->active == buf)
mx3_cam->active = NULL;
spin_unlock_irq(&mx3_cam->lock);
error:
vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);
}
static void mx3_videobuf_release(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
struct mx3_camera_buffer *buf = to_mx3_vb(vbuf);
struct dma_async_tx_descriptor *txd = buf->txd;
unsigned long flags;
dev_dbg(icd->parent,
"Release%s DMA %pad, queue %sempty\n",
mx3_cam->active == buf ? " active" : "", &sg_dma_address(&buf->sg),
list_empty(&buf->queue) ? "" : "not ");
spin_lock_irqsave(&mx3_cam->lock, flags);
if (mx3_cam->active == buf)
mx3_cam->active = NULL;
/* Doesn't hurt also if the list is empty */
list_del_init(&buf->queue);
if (txd) {
buf->txd = NULL;
if (mx3_cam->idmac_channel[0])
async_tx_ack(txd);
}
spin_unlock_irqrestore(&mx3_cam->lock, flags);
mx3_cam->buf_total -= vb2_plane_size(vb, 0);
}
static int mx3_videobuf_init(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
struct soc_camera_device *icd = soc_camera_from_vb2q(vb->vb2_queue);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
struct mx3_camera_buffer *buf = to_mx3_vb(vbuf);
if (!buf->txd) {
/* This is for locking debugging only */
INIT_LIST_HEAD(&buf->queue);
sg_init_table(&buf->sg, 1);
mx3_cam->buf_total += vb2_plane_size(vb, 0);
}
return 0;
}
static void mx3_stop_streaming(struct vb2_queue *q)
{
struct soc_camera_device *icd = soc_camera_from_vb2q(q);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
struct idmac_channel *ichan = mx3_cam->idmac_channel[0];
struct mx3_camera_buffer *buf, *tmp;
unsigned long flags;
if (ichan)
dmaengine_pause(&ichan->dma_chan);
spin_lock_irqsave(&mx3_cam->lock, flags);
mx3_cam->active = NULL;
list_for_each_entry_safe(buf, tmp, &mx3_cam->capture, queue) {
list_del_init(&buf->queue);
vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
}
spin_unlock_irqrestore(&mx3_cam->lock, flags);
}
static struct vb2_ops mx3_videobuf_ops = {
.queue_setup = mx3_videobuf_setup,
.buf_queue = mx3_videobuf_queue,
.buf_cleanup = mx3_videobuf_release,
.buf_init = mx3_videobuf_init,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
.stop_streaming = mx3_stop_streaming,
};
static int mx3_camera_init_videobuf(struct vb2_queue *q,
struct soc_camera_device *icd)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
q->io_modes = VB2_MMAP | VB2_USERPTR;
q->drv_priv = icd;
q->ops = &mx3_videobuf_ops;
q->mem_ops = &vb2_dma_contig_memops;
q->buf_struct_size = sizeof(struct mx3_camera_buffer);
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
q->lock = &ici->host_lock;
return vb2_queue_init(q);
}
/* First part of ipu_csi_init_interface() */
static void mx3_camera_activate(struct mx3_camera_dev *mx3_cam)
{
u32 conf;
long rate;
/* Set default size: ipu_csi_set_window_size() */
csi_reg_write(mx3_cam, (640 - 1) | ((480 - 1) << 16), CSI_ACT_FRM_SIZE);
/* ...and position to 0:0: ipu_csi_set_window_pos() */
conf = csi_reg_read(mx3_cam, CSI_OUT_FRM_CTRL) & 0xffff0000;
csi_reg_write(mx3_cam, conf, CSI_OUT_FRM_CTRL);
/* We use only gated clock synchronisation mode so far */
conf = 0 << CSI_SENS_CONF_SENS_PRTCL_SHIFT;
/* Set generic data, platform-biggest bus-width */
conf |= CSI_SENS_CONF_DATA_FMT_BAYER;
if (mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_15)
conf |= 3 << CSI_SENS_CONF_DATA_WIDTH_SHIFT;
else if (mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_10)
conf |= 2 << CSI_SENS_CONF_DATA_WIDTH_SHIFT;
else if (mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_8)
conf |= 1 << CSI_SENS_CONF_DATA_WIDTH_SHIFT;
else/* if (mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_4)*/
conf |= 0 << CSI_SENS_CONF_DATA_WIDTH_SHIFT;
if (mx3_cam->platform_flags & MX3_CAMERA_CLK_SRC)
conf |= 1 << CSI_SENS_CONF_SENS_CLKSRC_SHIFT;
if (mx3_cam->platform_flags & MX3_CAMERA_EXT_VSYNC)
conf |= 1 << CSI_SENS_CONF_EXT_VSYNC_SHIFT;
if (mx3_cam->platform_flags & MX3_CAMERA_DP)
conf |= 1 << CSI_SENS_CONF_DATA_POL_SHIFT;
if (mx3_cam->platform_flags & MX3_CAMERA_PCP)
conf |= 1 << CSI_SENS_CONF_PIX_CLK_POL_SHIFT;
if (mx3_cam->platform_flags & MX3_CAMERA_HSP)
conf |= 1 << CSI_SENS_CONF_HSYNC_POL_SHIFT;
if (mx3_cam->platform_flags & MX3_CAMERA_VSP)
conf |= 1 << CSI_SENS_CONF_VSYNC_POL_SHIFT;
/* ipu_csi_init_interface() */
csi_reg_write(mx3_cam, conf, CSI_SENS_CONF);
clk_prepare_enable(mx3_cam->clk);
rate = clk_round_rate(mx3_cam->clk, mx3_cam->mclk);
dev_dbg(mx3_cam->soc_host.v4l2_dev.dev, "Set SENS_CONF to %x, rate %ld\n", conf, rate);
if (rate)
clk_set_rate(mx3_cam->clk, rate);
}
static int mx3_camera_add_device(struct soc_camera_device *icd)
{
dev_info(icd->parent, "MX3 Camera driver attached to camera %d\n",
icd->devnum);
return 0;
}
static void mx3_camera_remove_device(struct soc_camera_device *icd)
{
dev_info(icd->parent, "MX3 Camera driver detached from camera %d\n",
icd->devnum);
}
/* Called with .host_lock held */
static int mx3_camera_clock_start(struct soc_camera_host *ici)
{
struct mx3_camera_dev *mx3_cam = ici->priv;
mx3_camera_activate(mx3_cam);
mx3_cam->buf_total = 0;
return 0;
}
/* Called with .host_lock held */
static void mx3_camera_clock_stop(struct soc_camera_host *ici)
{
struct mx3_camera_dev *mx3_cam = ici->priv;
struct idmac_channel **ichan = &mx3_cam->idmac_channel[0];
if (*ichan) {
dma_release_channel(&(*ichan)->dma_chan);
*ichan = NULL;
}
clk_disable_unprepare(mx3_cam->clk);
}
static int test_platform_param(struct mx3_camera_dev *mx3_cam,
unsigned char buswidth, unsigned long *flags)
{
/*
* If requested data width is supported by the platform, use it or any
* possible lower value - i.MX31 is smart enough to shift bits
*/
if (buswidth > fls(mx3_cam->width_flags))
return -EINVAL;
/*
* Platform specified synchronization and pixel clock polarities are
* only a recommendation and are only used during probing. MX3x
* camera interface only works in master mode, i.e., uses HSYNC and
* VSYNC signals from the sensor
*/
*flags = V4L2_MBUS_MASTER |
V4L2_MBUS_HSYNC_ACTIVE_HIGH |
V4L2_MBUS_HSYNC_ACTIVE_LOW |
V4L2_MBUS_VSYNC_ACTIVE_HIGH |
V4L2_MBUS_VSYNC_ACTIVE_LOW |
V4L2_MBUS_PCLK_SAMPLE_RISING |
V4L2_MBUS_PCLK_SAMPLE_FALLING |
V4L2_MBUS_DATA_ACTIVE_HIGH |
V4L2_MBUS_DATA_ACTIVE_LOW;
return 0;
}
static int mx3_camera_try_bus_param(struct soc_camera_device *icd,
const unsigned int depth)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
unsigned long bus_flags, common_flags;
int ret = test_platform_param(mx3_cam, depth, &bus_flags);
dev_dbg(icd->parent, "request bus width %d bit: %d\n", depth, ret);
if (ret < 0)
return ret;
ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
if (!ret) {
common_flags = soc_mbus_config_compatible(&cfg,
bus_flags);
if (!common_flags) {
dev_warn(icd->parent,
"Flags incompatible: camera 0x%x, host 0x%lx\n",
cfg.flags, bus_flags);
return -EINVAL;
}
} else if (ret != -ENOIOCTLCMD) {
return ret;
}
return 0;
}
static bool chan_filter(struct dma_chan *chan, void *arg)
{
struct dma_chan_request *rq = arg;
struct mx3_camera_pdata *pdata;
if (!imx_dma_is_ipu(chan))
return false;
if (!rq)
return false;
pdata = rq->mx3_cam->soc_host.v4l2_dev.dev->platform_data;
return rq->id == chan->chan_id &&
pdata->dma_dev == chan->device->dev;
}
static const struct soc_mbus_pixelfmt mx3_camera_formats[] = {
{
.fourcc = V4L2_PIX_FMT_SBGGR8,
.name = "Bayer BGGR (sRGB) 8 bit",
.bits_per_sample = 8,
.packing = SOC_MBUS_PACKING_NONE,
.order = SOC_MBUS_ORDER_LE,
.layout = SOC_MBUS_LAYOUT_PACKED,
}, {
.fourcc = V4L2_PIX_FMT_GREY,
.name = "Monochrome 8 bit",
.bits_per_sample = 8,
.packing = SOC_MBUS_PACKING_NONE,
.order = SOC_MBUS_ORDER_LE,
.layout = SOC_MBUS_LAYOUT_PACKED,
},
};
/* This will be corrected as we get more formats */
static bool mx3_camera_packing_supported(const struct soc_mbus_pixelfmt *fmt)
{
return fmt->packing == SOC_MBUS_PACKING_NONE ||
(fmt->bits_per_sample == 8 &&
fmt->packing == SOC_MBUS_PACKING_2X8_PADHI) ||
(fmt->bits_per_sample > 8 &&
fmt->packing == SOC_MBUS_PACKING_EXTEND16);
}
static int mx3_camera_get_formats(struct soc_camera_device *icd, unsigned int idx,
struct soc_camera_format_xlate *xlate)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct device *dev = icd->parent;
int formats = 0, ret;
struct v4l2_subdev_mbus_code_enum code = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
.index = idx,
};
const struct soc_mbus_pixelfmt *fmt;
ret = v4l2_subdev_call(sd, pad, enum_mbus_code, NULL, &code);
if (ret < 0)
/* No more formats */
return 0;
fmt = soc_mbus_get_fmtdesc(code.code);
if (!fmt) {
dev_warn(icd->parent,
"Unsupported format code #%u: 0x%x\n", idx, code.code);
return 0;
}
/* This also checks support for the requested bits-per-sample */
ret = mx3_camera_try_bus_param(icd, fmt->bits_per_sample);
if (ret < 0)
return 0;
switch (code.code) {
case MEDIA_BUS_FMT_SBGGR10_1X10:
formats++;
if (xlate) {
xlate->host_fmt = &mx3_camera_formats[0];
xlate->code = code.code;
xlate++;
dev_dbg(dev, "Providing format %s using code 0x%x\n",
mx3_camera_formats[0].name, code.code);
}
break;
case MEDIA_BUS_FMT_Y10_1X10:
formats++;
if (xlate) {
xlate->host_fmt = &mx3_camera_formats[1];
xlate->code = code.code;
xlate++;
dev_dbg(dev, "Providing format %s using code 0x%x\n",
mx3_camera_formats[1].name, code.code);
}
break;
default:
if (!mx3_camera_packing_supported(fmt))
return 0;
}
/* Generic pass-through */
formats++;
if (xlate) {
xlate->host_fmt = fmt;
xlate->code = code.code;
dev_dbg(dev, "Providing format %c%c%c%c in pass-through mode\n",
(fmt->fourcc >> (0*8)) & 0xFF,
(fmt->fourcc >> (1*8)) & 0xFF,
(fmt->fourcc >> (2*8)) & 0xFF,
(fmt->fourcc >> (3*8)) & 0xFF);
xlate++;
}
return formats;
}
static void configure_geometry(struct mx3_camera_dev *mx3_cam,
unsigned int width, unsigned int height,
const struct soc_mbus_pixelfmt *fmt)
{
u32 ctrl, width_field, height_field;
if (fourcc_to_ipu_pix(fmt->fourcc) == IPU_PIX_FMT_GENERIC) {
/*
* As the CSI will be configured to output BAYER, here
* the width parameter count the number of samples to
* capture to complete the whole image width.
*/
unsigned int num, den;
int ret = soc_mbus_samples_per_pixel(fmt, &num, &den);
BUG_ON(ret < 0);
width = width * num / den;
}
/* Setup frame size - this cannot be changed on-the-fly... */
width_field = width - 1;
height_field = height - 1;
csi_reg_write(mx3_cam, width_field | (height_field << 16), CSI_SENS_FRM_SIZE);
csi_reg_write(mx3_cam, width_field << 16, CSI_FLASH_STROBE_1);
csi_reg_write(mx3_cam, (height_field << 16) | 0x22, CSI_FLASH_STROBE_2);
csi_reg_write(mx3_cam, width_field | (height_field << 16), CSI_ACT_FRM_SIZE);
/* ...and position */
ctrl = csi_reg_read(mx3_cam, CSI_OUT_FRM_CTRL) & 0xffff0000;
/* Sensor does the cropping */
csi_reg_write(mx3_cam, ctrl | 0 | (0 << 8), CSI_OUT_FRM_CTRL);
}
static int acquire_dma_channel(struct mx3_camera_dev *mx3_cam)
{
dma_cap_mask_t mask;
struct dma_chan *chan;
struct idmac_channel **ichan = &mx3_cam->idmac_channel[0];
/* We have to use IDMAC_IC_7 for Bayer / generic data */
struct dma_chan_request rq = {.mx3_cam = mx3_cam,
.id = IDMAC_IC_7};
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
dma_cap_set(DMA_PRIVATE, mask);
chan = dma_request_channel(mask, chan_filter, &rq);
if (!chan)
return -EBUSY;
*ichan = to_idmac_chan(chan);
(*ichan)->client = mx3_cam;
return 0;
}
/*
* FIXME: learn to use stride != width, then we can keep stride properly aligned
* and support arbitrary (even) widths.
*/
static inline void stride_align(__u32 *width)
{
if (ALIGN(*width, 8) < 4096)
*width = ALIGN(*width, 8);
else
*width = *width & ~7;
}
/*
* As long as we don't implement host-side cropping and scaling, we can use
* default g_crop and cropcap from soc_camera.c
*/
static int mx3_camera_set_crop(struct soc_camera_device *icd,
const struct v4l2_crop *a)
{
struct v4l2_crop a_writable = *a;
struct v4l2_rect *rect = &a_writable.c;
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct v4l2_subdev_format fmt = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
struct v4l2_mbus_framefmt *mf = &fmt.format;
int ret;
soc_camera_limit_side(&rect->left, &rect->width, 0, 2, 4096);
soc_camera_limit_side(&rect->top, &rect->height, 0, 2, 4096);
ret = v4l2_subdev_call(sd, video, s_crop, a);
if (ret < 0)
return ret;
/* The capture device might have changed its output sizes */
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &fmt);
if (ret < 0)
return ret;
if (mf->code != icd->current_fmt->code)
return -EINVAL;
if (mf->width & 7) {
/* Ouch! We can only handle 8-byte aligned width... */
stride_align(&mf->width);
ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &fmt);
if (ret < 0)
return ret;
}
if (mf->width != icd->user_width || mf->height != icd->user_height)
configure_geometry(mx3_cam, mf->width, mf->height,
icd->current_fmt->host_fmt);
dev_dbg(icd->parent, "Sensor cropped %dx%d\n",
mf->width, mf->height);
icd->user_width = mf->width;
icd->user_height = mf->height;
return ret;
}
static int mx3_camera_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
const struct soc_camera_format_xlate *xlate;
struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
struct v4l2_mbus_framefmt *mf = &format.format;
int ret;
xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
if (!xlate) {
dev_warn(icd->parent, "Format %x not found\n",
pix->pixelformat);
return -EINVAL;
}
stride_align(&pix->width);
dev_dbg(icd->parent, "Set format %dx%d\n", pix->width, pix->height);
/*
* Might have to perform a complete interface initialisation like in
* ipu_csi_init_interface() in mxc_v4l2_s_param(). Also consider
* mxc_v4l2_s_fmt()
*/
configure_geometry(mx3_cam, pix->width, pix->height, xlate->host_fmt);
mf->width = pix->width;
mf->height = pix->height;
mf->field = pix->field;
mf->colorspace = pix->colorspace;
mf->code = xlate->code;
ret = v4l2_subdev_call(sd, pad, set_fmt, NULL, &format);
if (ret < 0)
return ret;
if (mf->code != xlate->code)
return -EINVAL;
if (!mx3_cam->idmac_channel[0]) {
ret = acquire_dma_channel(mx3_cam);
if (ret < 0)
return ret;
}
pix->width = mf->width;
pix->height = mf->height;
pix->field = mf->field;
mx3_cam->field = mf->field;
pix->colorspace = mf->colorspace;
icd->current_fmt = xlate;
dev_dbg(icd->parent, "Sensor set %dx%d\n", pix->width, pix->height);
return ret;
}
static int mx3_camera_try_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
const struct soc_camera_format_xlate *xlate;
struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_subdev_pad_config pad_cfg;
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_TRY,
};
struct v4l2_mbus_framefmt *mf = &format.format;
__u32 pixfmt = pix->pixelformat;
int ret;
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
if (pixfmt && !xlate) {
dev_warn(icd->parent, "Format %x not found\n", pixfmt);
return -EINVAL;
}
/* limit to MX3 hardware capabilities */
if (pix->height > 4096)
pix->height = 4096;
if (pix->width > 4096)
pix->width = 4096;
/* limit to sensor capabilities */
mf->width = pix->width;
mf->height = pix->height;
mf->field = pix->field;
mf->colorspace = pix->colorspace;
mf->code = xlate->code;
ret = v4l2_subdev_call(sd, pad, set_fmt, &pad_cfg, &format);
if (ret < 0)
return ret;
pix->width = mf->width;
pix->height = mf->height;
pix->colorspace = mf->colorspace;
switch (mf->field) {
case V4L2_FIELD_ANY:
pix->field = V4L2_FIELD_NONE;
break;
case V4L2_FIELD_NONE:
break;
default:
dev_err(icd->parent, "Field type %d unsupported.\n",
mf->field);
ret = -EINVAL;
}
return ret;
}
static int mx3_camera_reqbufs(struct soc_camera_device *icd,
struct v4l2_requestbuffers *p)
{
return 0;
}
static unsigned int mx3_camera_poll(struct file *file, poll_table *pt)
{
struct soc_camera_device *icd = file->private_data;
return vb2_poll(&icd->vb2_vidq, file, pt);
}
static int mx3_camera_querycap(struct soc_camera_host *ici,
struct v4l2_capability *cap)
{
/* cap->name is set by the firendly caller:-> */
strlcpy(cap->card, "i.MX3x Camera", sizeof(cap->card));
cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
return 0;
}
static int mx3_camera_set_bus_param(struct soc_camera_device *icd)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct mx3_camera_dev *mx3_cam = ici->priv;
struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
u32 pixfmt = icd->current_fmt->host_fmt->fourcc;
unsigned long bus_flags, common_flags;
u32 dw, sens_conf;
const struct soc_mbus_pixelfmt *fmt;
int buswidth;
int ret;
const struct soc_camera_format_xlate *xlate;
struct device *dev = icd->parent;
fmt = soc_mbus_get_fmtdesc(icd->current_fmt->code);
if (!fmt)
return -EINVAL;
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
if (!xlate) {
dev_warn(dev, "Format %x not found\n", pixfmt);
return -EINVAL;
}
buswidth = fmt->bits_per_sample;
ret = test_platform_param(mx3_cam, buswidth, &bus_flags);
dev_dbg(dev, "requested bus width %d bit: %d\n", buswidth, ret);
if (ret < 0)
return ret;
ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
if (!ret) {
common_flags = soc_mbus_config_compatible(&cfg,
bus_flags);
if (!common_flags) {
dev_warn(icd->parent,
"Flags incompatible: camera 0x%x, host 0x%lx\n",
cfg.flags, bus_flags);
return -EINVAL;
}
} else if (ret != -ENOIOCTLCMD) {
return ret;
} else {
common_flags = bus_flags;
}
dev_dbg(dev, "Flags cam: 0x%x host: 0x%lx common: 0x%lx\n",
cfg.flags, bus_flags, common_flags);
/* Make choices, based on platform preferences */
if ((common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) {
if (mx3_cam->platform_flags & MX3_CAMERA_HSP)
common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_HIGH;
else
common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_LOW;
}
if ((common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) {
if (mx3_cam->platform_flags & MX3_CAMERA_VSP)
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH;
else
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW;
}
if ((common_flags & V4L2_MBUS_DATA_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_DATA_ACTIVE_LOW)) {
if (mx3_cam->platform_flags & MX3_CAMERA_DP)
common_flags &= ~V4L2_MBUS_DATA_ACTIVE_HIGH;
else
common_flags &= ~V4L2_MBUS_DATA_ACTIVE_LOW;
}
if ((common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING) &&
(common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)) {
if (mx3_cam->platform_flags & MX3_CAMERA_PCP)
common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_RISING;
else
common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_FALLING;
}
cfg.flags = common_flags;
ret = v4l2_subdev_call(sd, video, s_mbus_config, &cfg);
if (ret < 0 && ret != -ENOIOCTLCMD) {
dev_dbg(dev, "camera s_mbus_config(0x%lx) returned %d\n",
common_flags, ret);
return ret;
}
/*
* So far only gated clock mode is supported. Add a line
* (3 << CSI_SENS_CONF_SENS_PRTCL_SHIFT) |
* below and select the required mode when supporting other
* synchronisation protocols.
*/
sens_conf = csi_reg_read(mx3_cam, CSI_SENS_CONF) &
~((1 << CSI_SENS_CONF_VSYNC_POL_SHIFT) |
(1 << CSI_SENS_CONF_HSYNC_POL_SHIFT) |
(1 << CSI_SENS_CONF_DATA_POL_SHIFT) |
(1 << CSI_SENS_CONF_PIX_CLK_POL_SHIFT) |
(3 << CSI_SENS_CONF_DATA_FMT_SHIFT) |
(3 << CSI_SENS_CONF_DATA_WIDTH_SHIFT));
/* TODO: Support RGB and YUV formats */
/* This has been set in mx3_camera_activate(), but we clear it above */
sens_conf |= CSI_SENS_CONF_DATA_FMT_BAYER;
if (common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
sens_conf |= 1 << CSI_SENS_CONF_PIX_CLK_POL_SHIFT;
if (common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
sens_conf |= 1 << CSI_SENS_CONF_HSYNC_POL_SHIFT;
if (common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
sens_conf |= 1 << CSI_SENS_CONF_VSYNC_POL_SHIFT;
if (common_flags & V4L2_MBUS_DATA_ACTIVE_LOW)
sens_conf |= 1 << CSI_SENS_CONF_DATA_POL_SHIFT;
/* Just do what we're asked to do */
switch (xlate->host_fmt->bits_per_sample) {
case 4:
dw = 0 << CSI_SENS_CONF_DATA_WIDTH_SHIFT;
break;
case 8:
dw = 1 << CSI_SENS_CONF_DATA_WIDTH_SHIFT;
break;
case 10:
dw = 2 << CSI_SENS_CONF_DATA_WIDTH_SHIFT;
break;
default:
/*
* Actually it can only be 15 now, default is just to silence
* compiler warnings
*/
case 15:
dw = 3 << CSI_SENS_CONF_DATA_WIDTH_SHIFT;
}
csi_reg_write(mx3_cam, sens_conf | dw, CSI_SENS_CONF);
dev_dbg(dev, "Set SENS_CONF to %x\n", sens_conf | dw);
return 0;
}
static struct soc_camera_host_ops mx3_soc_camera_host_ops = {
.owner = THIS_MODULE,
.add = mx3_camera_add_device,
.remove = mx3_camera_remove_device,
.clock_start = mx3_camera_clock_start,
.clock_stop = mx3_camera_clock_stop,
.set_crop = mx3_camera_set_crop,
.set_fmt = mx3_camera_set_fmt,
.try_fmt = mx3_camera_try_fmt,
.get_formats = mx3_camera_get_formats,
.init_videobuf2 = mx3_camera_init_videobuf,
.reqbufs = mx3_camera_reqbufs,
.poll = mx3_camera_poll,
.querycap = mx3_camera_querycap,
.set_bus_param = mx3_camera_set_bus_param,
};
static int mx3_camera_probe(struct platform_device *pdev)
{
struct mx3_camera_pdata *pdata = pdev->dev.platform_data;
struct mx3_camera_dev *mx3_cam;
struct resource *res;
void __iomem *base;
int err = 0;
struct soc_camera_host *soc_host;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(base))
return PTR_ERR(base);
if (!pdata)
return -EINVAL;
mx3_cam = devm_kzalloc(&pdev->dev, sizeof(*mx3_cam), GFP_KERNEL);
if (!mx3_cam) {
dev_err(&pdev->dev, "Could not allocate mx3 camera object\n");
return -ENOMEM;
}
mx3_cam->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(mx3_cam->clk))
return PTR_ERR(mx3_cam->clk);
mx3_cam->pdata = pdata;
mx3_cam->platform_flags = pdata->flags;
if (!(mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_MASK)) {
/*
* Platform hasn't set available data widths. This is bad.
* Warn and use a default.
*/
dev_warn(&pdev->dev, "WARNING! Platform hasn't set available "
"data widths, using default 8 bit\n");
mx3_cam->platform_flags |= MX3_CAMERA_DATAWIDTH_8;
}
if (mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_4)
mx3_cam->width_flags = 1 << 3;
if (mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_8)
mx3_cam->width_flags |= 1 << 7;
if (mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_10)
mx3_cam->width_flags |= 1 << 9;
if (mx3_cam->platform_flags & MX3_CAMERA_DATAWIDTH_15)
mx3_cam->width_flags |= 1 << 14;
mx3_cam->mclk = pdata->mclk_10khz * 10000;
if (!mx3_cam->mclk) {
dev_warn(&pdev->dev,
"mclk_10khz == 0! Please, fix your platform data. "
"Using default 20MHz\n");
mx3_cam->mclk = 20000000;
}
/* list of video-buffers */
INIT_LIST_HEAD(&mx3_cam->capture);
spin_lock_init(&mx3_cam->lock);
mx3_cam->base = base;
soc_host = &mx3_cam->soc_host;
soc_host->drv_name = MX3_CAM_DRV_NAME;
soc_host->ops = &mx3_soc_camera_host_ops;
soc_host->priv = mx3_cam;
soc_host->v4l2_dev.dev = &pdev->dev;
soc_host->nr = pdev->id;
mx3_cam->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
if (IS_ERR(mx3_cam->alloc_ctx))
return PTR_ERR(mx3_cam->alloc_ctx);
if (pdata->asd_sizes) {
soc_host->asd = pdata->asd;
soc_host->asd_sizes = pdata->asd_sizes;
}
err = soc_camera_host_register(soc_host);
if (err)
goto ecamhostreg;
/* IDMAC interface */
dmaengine_get();
return 0;
ecamhostreg:
vb2_dma_contig_cleanup_ctx(mx3_cam->alloc_ctx);
return err;
}
static int mx3_camera_remove(struct platform_device *pdev)
{
struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev);
struct mx3_camera_dev *mx3_cam = container_of(soc_host,
struct mx3_camera_dev, soc_host);
soc_camera_host_unregister(soc_host);
/*
* The channel has either not been allocated,
* or should have been released
*/
if (WARN_ON(mx3_cam->idmac_channel[0]))
dma_release_channel(&mx3_cam->idmac_channel[0]->dma_chan);
vb2_dma_contig_cleanup_ctx(mx3_cam->alloc_ctx);
dmaengine_put();
return 0;
}
static struct platform_driver mx3_camera_driver = {
.driver = {
.name = MX3_CAM_DRV_NAME,
},
.probe = mx3_camera_probe,
.remove = mx3_camera_remove,
};
module_platform_driver(mx3_camera_driver);
MODULE_DESCRIPTION("i.MX3x SoC Camera Host driver");
MODULE_AUTHOR("Guennadi Liakhovetski <lg@denx.de>");
MODULE_LICENSE("GPL v2");
MODULE_VERSION("0.2.3");
MODULE_ALIAS("platform:" MX3_CAM_DRV_NAME);
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