]> git.karo-electronics.de Git - linux-beck.git/commitdiff
[media] media: mx1_camera: Remove driver
authorAlexander Shiyan <shc_work@mail.ru>
Sat, 24 May 2014 04:56:22 +0000 (01:56 -0300)
committerMauro Carvalho Chehab <m.chehab@samsung.com>
Tue, 17 Jun 2014 15:04:53 +0000 (12:04 -0300)
That driver hasn't been really maintained for a long time. It doesn't
compile in any way, it includes non-existent headers, has no users,
and marked as "BROKEN" more than year. Due to these factors, mx1_camera
is now removed from the tree.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
drivers/media/platform/soc_camera/Kconfig
drivers/media/platform/soc_camera/Makefile
drivers/media/platform/soc_camera/mx1_camera.c [deleted file]

index 5f54530ab4777d3ec8cf98acc409bdf86dd0f4bc..b3d9a1d10342041ee7baf9371f5aa06d8c42673a 100644 (file)
@@ -17,19 +17,6 @@ config SOC_CAMERA_PLATFORM
        help
          This is a generic SoC camera platform driver, useful for testing
 
-config MX1_VIDEO
-       bool
-
-config VIDEO_MX1
-       tristate "i.MX1/i.MXL CMOS Sensor Interface driver"
-       depends on BROKEN
-       depends on VIDEO_DEV && ARCH_MX1 && SOC_CAMERA
-       select FIQ
-       select VIDEOBUF_DMA_CONTIG
-       select MX1_VIDEO
-       ---help---
-         This is a v4l2 driver for the i.MX1/i.MXL CMOS Sensor Interface
-
 config VIDEO_MX3
        tristate "i.MX3x Camera Sensor Interface driver"
        depends on VIDEO_DEV && MX3_IPU && SOC_CAMERA
index 8aed26d7a64d9ddf353f6fe5ad6197c5fcf85796..2826382dc9f8c504693782f60bcae0c29422c5f5 100644 (file)
@@ -7,7 +7,6 @@ obj-$(CONFIG_SOC_CAMERA_PLATFORM)       += soc_camera_platform.o
 
 # soc-camera host drivers have to be linked after camera drivers
 obj-$(CONFIG_VIDEO_ATMEL_ISI)          += atmel-isi.o
-obj-$(CONFIG_VIDEO_MX1)                        += mx1_camera.o
 obj-$(CONFIG_VIDEO_MX2)                        += mx2_camera.o
 obj-$(CONFIG_VIDEO_MX3)                        += mx3_camera.o
 obj-$(CONFIG_VIDEO_OMAP1)              += omap1_camera.o
diff --git a/drivers/media/platform/soc_camera/mx1_camera.c b/drivers/media/platform/soc_camera/mx1_camera.c
deleted file mode 100644 (file)
index fea3e61..0000000
+++ /dev/null
@@ -1,866 +0,0 @@
-/*
- * V4L2 Driver for i.MXL/i.MXL camera (CSI) host
- *
- * Copyright (C) 2008, Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
- * Copyright (C) 2009, Darius Augulis <augulis.darius@gmail.com>
- *
- * Based on PXA SoC camera driver
- * Copyright (C) 2006, Sascha Hauer, Pengutronix
- * 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 version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/platform_device.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/time.h>
-#include <linux/videodev2.h>
-
-#include <media/soc_camera.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-dev.h>
-#include <media/videobuf-dma-contig.h>
-#include <media/soc_mediabus.h>
-
-#include <asm/dma.h>
-#include <asm/fiq.h>
-#include <mach/dma-mx1-mx2.h>
-#include <mach/hardware.h>
-#include <mach/irqs.h>
-#include <linux/platform_data/camera-mx1.h>
-
-/*
- * CSI registers
- */
-#define CSICR1         0x00                    /* CSI Control Register 1 */
-#define CSISR          0x08                    /* CSI Status Register */
-#define CSIRXR         0x10                    /* CSI RxFIFO Register */
-
-#define CSICR1_RXFF_LEVEL(x)   (((x) & 0x3) << 19)
-#define CSICR1_SOF_POL         (1 << 17)
-#define CSICR1_SOF_INTEN       (1 << 16)
-#define CSICR1_MCLKDIV(x)      (((x) & 0xf) << 12)
-#define CSICR1_MCLKEN          (1 << 9)
-#define CSICR1_FCC             (1 << 8)
-#define CSICR1_BIG_ENDIAN      (1 << 7)
-#define CSICR1_CLR_RXFIFO      (1 << 5)
-#define CSICR1_GCLK_MODE       (1 << 4)
-#define CSICR1_DATA_POL                (1 << 2)
-#define CSICR1_REDGE           (1 << 1)
-#define CSICR1_EN              (1 << 0)
-
-#define CSISR_SFF_OR_INT       (1 << 25)
-#define CSISR_RFF_OR_INT       (1 << 24)
-#define CSISR_STATFF_INT       (1 << 21)
-#define CSISR_RXFF_INT         (1 << 18)
-#define CSISR_SOF_INT          (1 << 16)
-#define CSISR_DRDY             (1 << 0)
-
-#define DRIVER_VERSION "0.0.2"
-#define DRIVER_NAME "mx1-camera"
-
-#define CSI_IRQ_MASK   (CSISR_SFF_OR_INT | CSISR_RFF_OR_INT | \
-                       CSISR_STATFF_INT | CSISR_RXFF_INT | CSISR_SOF_INT)
-
-#define CSI_BUS_FLAGS  (V4L2_MBUS_MASTER | V4L2_MBUS_HSYNC_ACTIVE_HIGH | \
-                       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)
-
-#define MAX_VIDEO_MEM 16       /* Video memory limit in megabytes */
-
-/*
- * Structures
- */
-
-/* buffer for one video frame */
-struct mx1_buffer {
-       /* common v4l buffer stuff -- must be first */
-       struct videobuf_buffer          vb;
-       enum v4l2_mbus_pixelcode        code;
-       int                             inwork;
-};
-
-/*
- * i.MX1/i.MXL is only supposed to handle one camera on its Camera Sensor
- * Interface. If anyone ever builds hardware to enable more than
- * one camera, they will have to modify this driver too
- */
-struct mx1_camera_dev {
-       struct soc_camera_host          soc_host;
-       struct mx1_camera_pdata         *pdata;
-       struct mx1_buffer               *active;
-       struct resource                 *res;
-       struct clk                      *clk;
-       struct list_head                capture;
-
-       void __iomem                    *base;
-       int                             dma_chan;
-       unsigned int                    irq;
-       unsigned long                   mclk;
-
-       spinlock_t                      lock;
-};
-
-/*
- *  Videobuf operations
- */
-static int mx1_videobuf_setup(struct videobuf_queue *vq, unsigned int *count,
-                             unsigned int *size)
-{
-       struct soc_camera_device *icd = vq->priv_data;
-
-       *size = icd->sizeimage;
-
-       if (!*count)
-               *count = 32;
-
-       if (*size * *count > MAX_VIDEO_MEM * 1024 * 1024)
-               *count = (MAX_VIDEO_MEM * 1024 * 1024) / *size;
-
-       dev_dbg(icd->parent, "count=%d, size=%d\n", *count, *size);
-
-       return 0;
-}
-
-static void free_buffer(struct videobuf_queue *vq, struct mx1_buffer *buf)
-{
-       struct soc_camera_device *icd = vq->priv_data;
-       struct videobuf_buffer *vb = &buf->vb;
-
-       BUG_ON(in_interrupt());
-
-       dev_dbg(icd->parent, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
-               vb, vb->baddr, vb->bsize);
-
-       /*
-        * This waits until this buffer is out of danger, i.e., until it is no
-        * longer in STATE_QUEUED or STATE_ACTIVE
-        */
-       videobuf_waiton(vq, vb, 0, 0);
-       videobuf_dma_contig_free(vq, vb);
-
-       vb->state = VIDEOBUF_NEEDS_INIT;
-}
-
-static int mx1_videobuf_prepare(struct videobuf_queue *vq,
-               struct videobuf_buffer *vb, enum v4l2_field field)
-{
-       struct soc_camera_device *icd = vq->priv_data;
-       struct mx1_buffer *buf = container_of(vb, struct mx1_buffer, vb);
-       int ret;
-
-       dev_dbg(icd->parent, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
-               vb, vb->baddr, vb->bsize);
-
-       /* Added list head initialization on alloc */
-       WARN_ON(!list_empty(&vb->queue));
-
-       BUG_ON(NULL == icd->current_fmt);
-
-       /*
-        * I think, in buf_prepare you only have to protect global data,
-        * the actual buffer is yours
-        */
-       buf->inwork = 1;
-
-       if (buf->code   != icd->current_fmt->code ||
-           vb->width   != icd->user_width ||
-           vb->height  != icd->user_height ||
-           vb->field   != field) {
-               buf->code       = icd->current_fmt->code;
-               vb->width       = icd->user_width;
-               vb->height      = icd->user_height;
-               vb->field       = field;
-               vb->state       = VIDEOBUF_NEEDS_INIT;
-       }
-
-       vb->size = icd->sizeimage;
-       if (0 != vb->baddr && vb->bsize < vb->size) {
-               ret = -EINVAL;
-               goto out;
-       }
-
-       if (vb->state == VIDEOBUF_NEEDS_INIT) {
-               ret = videobuf_iolock(vq, vb, NULL);
-               if (ret)
-                       goto fail;
-
-               vb->state = VIDEOBUF_PREPARED;
-       }
-
-       buf->inwork = 0;
-
-       return 0;
-
-fail:
-       free_buffer(vq, buf);
-out:
-       buf->inwork = 0;
-       return ret;
-}
-
-static int mx1_camera_setup_dma(struct mx1_camera_dev *pcdev)
-{
-       struct videobuf_buffer *vbuf = &pcdev->active->vb;
-       struct device *dev = pcdev->soc_host.icd->parent;
-       int ret;
-
-       if (unlikely(!pcdev->active)) {
-               dev_err(dev, "DMA End IRQ with no active buffer\n");
-               return -EFAULT;
-       }
-
-       /* setup sg list for future DMA */
-       ret = imx_dma_setup_single(pcdev->dma_chan,
-               videobuf_to_dma_contig(vbuf),
-               vbuf->size, pcdev->res->start +
-               CSIRXR, DMA_MODE_READ);
-       if (unlikely(ret))
-               dev_err(dev, "Failed to setup DMA sg list\n");
-
-       return ret;
-}
-
-/* Called under spinlock_irqsave(&pcdev->lock, ...) */
-static void mx1_videobuf_queue(struct videobuf_queue *vq,
-                                               struct videobuf_buffer *vb)
-{
-       struct soc_camera_device *icd = vq->priv_data;
-       struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
-       struct mx1_camera_dev *pcdev = ici->priv;
-       struct mx1_buffer *buf = container_of(vb, struct mx1_buffer, vb);
-
-       dev_dbg(icd->parent, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
-               vb, vb->baddr, vb->bsize);
-
-       list_add_tail(&vb->queue, &pcdev->capture);
-
-       vb->state = VIDEOBUF_ACTIVE;
-
-       if (!pcdev->active) {
-               pcdev->active = buf;
-
-               /* setup sg list for future DMA */
-               if (!mx1_camera_setup_dma(pcdev)) {
-                       unsigned int temp;
-                       /* enable SOF irq */
-                       temp = __raw_readl(pcdev->base + CSICR1) |
-                                                       CSICR1_SOF_INTEN;
-                       __raw_writel(temp, pcdev->base + CSICR1);
-               }
-       }
-}
-
-static void mx1_videobuf_release(struct videobuf_queue *vq,
-                                struct videobuf_buffer *vb)
-{
-       struct mx1_buffer *buf = container_of(vb, struct mx1_buffer, vb);
-#ifdef DEBUG
-       struct soc_camera_device *icd = vq->priv_data;
-       struct device *dev = icd->parent;
-
-       dev_dbg(dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
-               vb, vb->baddr, vb->bsize);
-
-       switch (vb->state) {
-       case VIDEOBUF_ACTIVE:
-               dev_dbg(dev, "%s (active)\n", __func__);
-               break;
-       case VIDEOBUF_QUEUED:
-               dev_dbg(dev, "%s (queued)\n", __func__);
-               break;
-       case VIDEOBUF_PREPARED:
-               dev_dbg(dev, "%s (prepared)\n", __func__);
-               break;
-       default:
-               dev_dbg(dev, "%s (unknown)\n", __func__);
-               break;
-       }
-#endif
-
-       free_buffer(vq, buf);
-}
-
-static void mx1_camera_wakeup(struct mx1_camera_dev *pcdev,
-                             struct videobuf_buffer *vb,
-                             struct mx1_buffer *buf)
-{
-       /* _init is used to debug races, see comment in mx1_camera_reqbufs() */
-       list_del_init(&vb->queue);
-       vb->state = VIDEOBUF_DONE;
-       v4l2_get_timestamp(&vb->ts);
-       vb->field_count++;
-       wake_up(&vb->done);
-
-       if (list_empty(&pcdev->capture)) {
-               pcdev->active = NULL;
-               return;
-       }
-
-       pcdev->active = list_entry(pcdev->capture.next,
-                                  struct mx1_buffer, vb.queue);
-
-       /* setup sg list for future DMA */
-       if (likely(!mx1_camera_setup_dma(pcdev))) {
-               unsigned int temp;
-
-               /* enable SOF irq */
-               temp = __raw_readl(pcdev->base + CSICR1) | CSICR1_SOF_INTEN;
-               __raw_writel(temp, pcdev->base + CSICR1);
-       }
-}
-
-static void mx1_camera_dma_irq(int channel, void *data)
-{
-       struct mx1_camera_dev *pcdev = data;
-       struct device *dev = pcdev->soc_host.icd->parent;
-       struct mx1_buffer *buf;
-       struct videobuf_buffer *vb;
-       unsigned long flags;
-
-       spin_lock_irqsave(&pcdev->lock, flags);
-
-       imx_dma_disable(channel);
-
-       if (unlikely(!pcdev->active)) {
-               dev_err(dev, "DMA End IRQ with no active buffer\n");
-               goto out;
-       }
-
-       vb = &pcdev->active->vb;
-       buf = container_of(vb, struct mx1_buffer, vb);
-       WARN_ON(buf->inwork || list_empty(&vb->queue));
-       dev_dbg(dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
-               vb, vb->baddr, vb->bsize);
-
-       mx1_camera_wakeup(pcdev, vb, buf);
-out:
-       spin_unlock_irqrestore(&pcdev->lock, flags);
-}
-
-static struct videobuf_queue_ops mx1_videobuf_ops = {
-       .buf_setup      = mx1_videobuf_setup,
-       .buf_prepare    = mx1_videobuf_prepare,
-       .buf_queue      = mx1_videobuf_queue,
-       .buf_release    = mx1_videobuf_release,
-};
-
-static void mx1_camera_init_videobuf(struct videobuf_queue *q,
-                                    struct soc_camera_device *icd)
-{
-       struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
-       struct mx1_camera_dev *pcdev = ici->priv;
-
-       videobuf_queue_dma_contig_init(q, &mx1_videobuf_ops, icd->parent,
-                               &pcdev->lock, V4L2_BUF_TYPE_VIDEO_CAPTURE,
-                               V4L2_FIELD_NONE,
-                               sizeof(struct mx1_buffer), icd, &ici->host_lock);
-}
-
-static int mclk_get_divisor(struct mx1_camera_dev *pcdev)
-{
-       unsigned int mclk = pcdev->mclk;
-       unsigned long div;
-       unsigned long lcdclk;
-
-       lcdclk = clk_get_rate(pcdev->clk);
-
-       /*
-        * We verify platform_mclk_10khz != 0, so if anyone breaks it, here
-        * they get a nice Oops
-        */
-       div = (lcdclk + 2 * mclk - 1) / (2 * mclk) - 1;
-
-       dev_dbg(pcdev->soc_host.icd->parent,
-               "System clock %lukHz, target freq %dkHz, divisor %lu\n",
-               lcdclk / 1000, mclk / 1000, div);
-
-       return div;
-}
-
-static void mx1_camera_activate(struct mx1_camera_dev *pcdev)
-{
-       unsigned int csicr1 = CSICR1_EN;
-
-       dev_dbg(pcdev->soc_host.v4l2_dev.dev, "Activate device\n");
-
-       clk_prepare_enable(pcdev->clk);
-
-       /* enable CSI before doing anything else */
-       __raw_writel(csicr1, pcdev->base + CSICR1);
-
-       csicr1 |= CSICR1_MCLKEN | CSICR1_FCC | CSICR1_GCLK_MODE;
-       csicr1 |= CSICR1_MCLKDIV(mclk_get_divisor(pcdev));
-       csicr1 |= CSICR1_RXFF_LEVEL(2); /* 16 words */
-
-       __raw_writel(csicr1, pcdev->base + CSICR1);
-}
-
-static void mx1_camera_deactivate(struct mx1_camera_dev *pcdev)
-{
-       dev_dbg(pcdev->soc_host.v4l2_dev.dev, "Deactivate device\n");
-
-       /* Disable all CSI interface */
-       __raw_writel(0x00, pcdev->base + CSICR1);
-
-       clk_disable_unprepare(pcdev->clk);
-}
-
-static int mx1_camera_add_device(struct soc_camera_device *icd)
-{
-       dev_info(icd->parent, "MX1 Camera driver attached to camera %d\n",
-                icd->devnum);
-
-       return 0;
-}
-
-static void mx1_camera_remove_device(struct soc_camera_device *icd)
-{
-       dev_info(icd->parent, "MX1 Camera driver detached from camera %d\n",
-                icd->devnum);
-}
-
-/*
- * The following two functions absolutely depend on the fact, that
- * there can be only one camera on i.MX1/i.MXL camera sensor interface
- */
-static int mx1_camera_clock_start(struct soc_camera_host *ici)
-{
-       struct mx1_camera_dev *pcdev = ici->priv;
-
-       mx1_camera_activate(pcdev);
-
-       return 0;
-}
-
-static void mx1_camera_clock_stop(struct soc_camera_host *ici)
-{
-       struct mx1_camera_dev *pcdev = ici->priv;
-       unsigned int csicr1;
-
-       /* disable interrupts */
-       csicr1 = __raw_readl(pcdev->base + CSICR1) & ~CSI_IRQ_MASK;
-       __raw_writel(csicr1, pcdev->base + CSICR1);
-
-       /* Stop DMA engine */
-       imx_dma_disable(pcdev->dma_chan);
-
-       mx1_camera_deactivate(pcdev);
-}
-
-static int mx1_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 mx1_camera_dev *pcdev = ici->priv;
-       struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,};
-       unsigned long common_flags;
-       unsigned int csicr1;
-       int ret;
-
-       /* MX1 supports only 8bit buswidth */
-       ret = v4l2_subdev_call(sd, video, g_mbus_config, &cfg);
-       if (!ret) {
-               common_flags = soc_mbus_config_compatible(&cfg, CSI_BUS_FLAGS);
-               if (!common_flags) {
-                       dev_warn(icd->parent,
-                                "Flags incompatible: camera 0x%x, host 0x%x\n",
-                                cfg.flags, CSI_BUS_FLAGS);
-                       return -EINVAL;
-               }
-       } else if (ret != -ENOIOCTLCMD) {
-               return ret;
-       } else {
-               common_flags = CSI_BUS_FLAGS;
-       }
-
-       /* Make choises, based on platform choice */
-       if ((common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) &&
-               (common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) {
-                       if (!pcdev->pdata ||
-                            pcdev->pdata->flags & MX1_CAMERA_VSYNC_HIGH)
-                               common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW;
-                       else
-                               common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH;
-       }
-
-       if ((common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING) &&
-               (common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)) {
-                       if (!pcdev->pdata ||
-                            pcdev->pdata->flags & MX1_CAMERA_PCLK_RISING)
-                               common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_FALLING;
-                       else
-                               common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_RISING;
-       }
-
-       if ((common_flags & V4L2_MBUS_DATA_ACTIVE_HIGH) &&
-               (common_flags & V4L2_MBUS_DATA_ACTIVE_LOW)) {
-                       if (!pcdev->pdata ||
-                            pcdev->pdata->flags & MX1_CAMERA_DATA_HIGH)
-                               common_flags &= ~V4L2_MBUS_DATA_ACTIVE_LOW;
-                       else
-                               common_flags &= ~V4L2_MBUS_DATA_ACTIVE_HIGH;
-       }
-
-       cfg.flags = common_flags;
-       ret = v4l2_subdev_call(sd, video, s_mbus_config, &cfg);
-       if (ret < 0 && ret != -ENOIOCTLCMD) {
-               dev_dbg(icd->parent, "camera s_mbus_config(0x%lx) returned %d\n",
-                       common_flags, ret);
-               return ret;
-       }
-
-       csicr1 = __raw_readl(pcdev->base + CSICR1);
-
-       if (common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
-               csicr1 |= CSICR1_REDGE;
-       if (common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
-               csicr1 |= CSICR1_SOF_POL;
-       if (common_flags & V4L2_MBUS_DATA_ACTIVE_LOW)
-               csicr1 |= CSICR1_DATA_POL;
-
-       __raw_writel(csicr1, pcdev->base + CSICR1);
-
-       return 0;
-}
-
-static int mx1_camera_set_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_mbus_framefmt mf;
-       int ret, buswidth;
-
-       xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
-       if (!xlate) {
-               dev_warn(icd->parent, "Format %x not found\n",
-                        pix->pixelformat);
-               return -EINVAL;
-       }
-
-       buswidth = xlate->host_fmt->bits_per_sample;
-       if (buswidth > 8) {
-               dev_warn(icd->parent,
-                        "bits-per-sample %d for format %x unsupported\n",
-                        buswidth, pix->pixelformat);
-               return -EINVAL;
-       }
-
-       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, video, s_mbus_fmt, &mf);
-       if (ret < 0)
-               return ret;
-
-       if (mf.code != xlate->code)
-               return -EINVAL;
-
-       pix->width              = mf.width;
-       pix->height             = mf.height;
-       pix->field              = mf.field;
-       pix->colorspace         = mf.colorspace;
-       icd->current_fmt        = xlate;
-
-       return ret;
-}
-
-static int mx1_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_mbus_framefmt mf;
-       int ret;
-       /* TODO: limit to mx1 hardware capabilities */
-
-       xlate = soc_camera_xlate_by_fourcc(icd, pix->pixelformat);
-       if (!xlate) {
-               dev_warn(icd->parent, "Format %x not found\n",
-                        pix->pixelformat);
-               return -EINVAL;
-       }
-
-       mf.width        = pix->width;
-       mf.height       = pix->height;
-       mf.field        = pix->field;
-       mf.colorspace   = pix->colorspace;
-       mf.code         = xlate->code;
-
-       /* limit to sensor capabilities */
-       ret = v4l2_subdev_call(sd, video, try_mbus_fmt, &mf);
-       if (ret < 0)
-               return ret;
-
-       pix->width      = mf.width;
-       pix->height     = mf.height;
-       pix->field      = mf.field;
-       pix->colorspace = mf.colorspace;
-
-       return 0;
-}
-
-static int mx1_camera_reqbufs(struct soc_camera_device *icd,
-                             struct v4l2_requestbuffers *p)
-{
-       int i;
-
-       /*
-        * This is for locking debugging only. I removed spinlocks and now I
-        * check whether .prepare is ever called on a linked buffer, or whether
-        * a dma IRQ can occur for an in-work or unlinked buffer. Until now
-        * it hadn't triggered
-        */
-       for (i = 0; i < p->count; i++) {
-               struct mx1_buffer *buf = container_of(icd->vb_vidq.bufs[i],
-                                                     struct mx1_buffer, vb);
-               buf->inwork = 0;
-               INIT_LIST_HEAD(&buf->vb.queue);
-       }
-
-       return 0;
-}
-
-static unsigned int mx1_camera_poll(struct file *file, poll_table *pt)
-{
-       struct soc_camera_device *icd = file->private_data;
-       struct mx1_buffer *buf;
-
-       buf = list_entry(icd->vb_vidq.stream.next, struct mx1_buffer,
-                        vb.stream);
-
-       poll_wait(file, &buf->vb.done, pt);
-
-       if (buf->vb.state == VIDEOBUF_DONE ||
-           buf->vb.state == VIDEOBUF_ERROR)
-               return POLLIN | POLLRDNORM;
-
-       return 0;
-}
-
-static int mx1_camera_querycap(struct soc_camera_host *ici,
-                              struct v4l2_capability *cap)
-{
-       /* cap->name is set by the friendly caller:-> */
-       strlcpy(cap->card, "i.MX1/i.MXL Camera", sizeof(cap->card));
-       cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
-
-       return 0;
-}
-
-static struct soc_camera_host_ops mx1_soc_camera_host_ops = {
-       .owner          = THIS_MODULE,
-       .add            = mx1_camera_add_device,
-       .remove         = mx1_camera_remove_device,
-       .clock_start    = mx1_camera_clock_start,
-       .clock_stop     = mx1_camera_clock_stop,
-       .set_bus_param  = mx1_camera_set_bus_param,
-       .set_fmt        = mx1_camera_set_fmt,
-       .try_fmt        = mx1_camera_try_fmt,
-       .init_videobuf  = mx1_camera_init_videobuf,
-       .reqbufs        = mx1_camera_reqbufs,
-       .poll           = mx1_camera_poll,
-       .querycap       = mx1_camera_querycap,
-};
-
-static struct fiq_handler fh = {
-       .name           = "csi_sof"
-};
-
-static int __init mx1_camera_probe(struct platform_device *pdev)
-{
-       struct mx1_camera_dev *pcdev;
-       struct resource *res;
-       struct pt_regs regs;
-       struct clk *clk;
-       void __iomem *base;
-       unsigned int irq;
-       int err = 0;
-
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       irq = platform_get_irq(pdev, 0);
-       if (!res || (int)irq <= 0) {
-               err = -ENODEV;
-               goto exit;
-       }
-
-       clk = clk_get(&pdev->dev, "csi_clk");
-       if (IS_ERR(clk)) {
-               err = PTR_ERR(clk);
-               goto exit;
-       }
-
-       pcdev = kzalloc(sizeof(*pcdev), GFP_KERNEL);
-       if (!pcdev) {
-               dev_err(&pdev->dev, "Could not allocate pcdev\n");
-               err = -ENOMEM;
-               goto exit_put_clk;
-       }
-
-       pcdev->res = res;
-       pcdev->clk = clk;
-
-       pcdev->pdata = pdev->dev.platform_data;
-
-       if (pcdev->pdata)
-               pcdev->mclk = pcdev->pdata->mclk_10khz * 10000;
-
-       if (!pcdev->mclk) {
-               dev_warn(&pdev->dev,
-                        "mclk_10khz == 0! Please, fix your platform data. "
-                        "Using default 20MHz\n");
-               pcdev->mclk = 20000000;
-       }
-
-       INIT_LIST_HEAD(&pcdev->capture);
-       spin_lock_init(&pcdev->lock);
-
-       /*
-        * Request the regions.
-        */
-       if (!request_mem_region(res->start, resource_size(res), DRIVER_NAME)) {
-               err = -EBUSY;
-               goto exit_kfree;
-       }
-
-       base = ioremap(res->start, resource_size(res));
-       if (!base) {
-               err = -ENOMEM;
-               goto exit_release;
-       }
-       pcdev->irq = irq;
-       pcdev->base = base;
-
-       /* request dma */
-       pcdev->dma_chan = imx_dma_request_by_prio(DRIVER_NAME, DMA_PRIO_HIGH);
-       if (pcdev->dma_chan < 0) {
-               dev_err(&pdev->dev, "Can't request DMA for MX1 CSI\n");
-               err = -EBUSY;
-               goto exit_iounmap;
-       }
-       dev_dbg(&pdev->dev, "got DMA channel %d\n", pcdev->dma_chan);
-
-       imx_dma_setup_handlers(pcdev->dma_chan, mx1_camera_dma_irq, NULL,
-                              pcdev);
-
-       imx_dma_config_channel(pcdev->dma_chan, IMX_DMA_TYPE_FIFO,
-                              IMX_DMA_MEMSIZE_32, MX1_DMA_REQ_CSI_R, 0);
-       /* burst length : 16 words = 64 bytes */
-       imx_dma_config_burstlen(pcdev->dma_chan, 0);
-
-       /* request irq */
-       err = claim_fiq(&fh);
-       if (err) {
-               dev_err(&pdev->dev, "Camera interrupt register failed\n");
-               goto exit_free_dma;
-       }
-
-       set_fiq_handler(&mx1_camera_sof_fiq_start, &mx1_camera_sof_fiq_end -
-                                                  &mx1_camera_sof_fiq_start);
-
-       regs.ARM_r8 = (long)MX1_DMA_DIMR;
-       regs.ARM_r9 = (long)MX1_DMA_CCR(pcdev->dma_chan);
-       regs.ARM_r10 = (long)pcdev->base + CSICR1;
-       regs.ARM_fp = (long)pcdev->base + CSISR;
-       regs.ARM_sp = 1 << pcdev->dma_chan;
-       set_fiq_regs(&regs);
-
-       mxc_set_irq_fiq(irq, 1);
-       enable_fiq(irq);
-
-       pcdev->soc_host.drv_name        = DRIVER_NAME;
-       pcdev->soc_host.ops             = &mx1_soc_camera_host_ops;
-       pcdev->soc_host.priv            = pcdev;
-       pcdev->soc_host.v4l2_dev.dev    = &pdev->dev;
-       pcdev->soc_host.nr              = pdev->id;
-       err = soc_camera_host_register(&pcdev->soc_host);
-       if (err)
-               goto exit_free_irq;
-
-       dev_info(&pdev->dev, "MX1 Camera driver loaded\n");
-
-       return 0;
-
-exit_free_irq:
-       disable_fiq(irq);
-       mxc_set_irq_fiq(irq, 0);
-       release_fiq(&fh);
-exit_free_dma:
-       imx_dma_free(pcdev->dma_chan);
-exit_iounmap:
-       iounmap(base);
-exit_release:
-       release_mem_region(res->start, resource_size(res));
-exit_kfree:
-       kfree(pcdev);
-exit_put_clk:
-       clk_put(clk);
-exit:
-       return err;
-}
-
-static int __exit mx1_camera_remove(struct platform_device *pdev)
-{
-       struct soc_camera_host *soc_host = to_soc_camera_host(&pdev->dev);
-       struct mx1_camera_dev *pcdev = container_of(soc_host,
-                                       struct mx1_camera_dev, soc_host);
-       struct resource *res;
-
-       imx_dma_free(pcdev->dma_chan);
-       disable_fiq(pcdev->irq);
-       mxc_set_irq_fiq(pcdev->irq, 0);
-       release_fiq(&fh);
-
-       clk_put(pcdev->clk);
-
-       soc_camera_host_unregister(soc_host);
-
-       iounmap(pcdev->base);
-
-       res = pcdev->res;
-       release_mem_region(res->start, resource_size(res));
-
-       kfree(pcdev);
-
-       dev_info(&pdev->dev, "MX1 Camera driver unloaded\n");
-
-       return 0;
-}
-
-static struct platform_driver mx1_camera_driver = {
-       .driver         = {
-               .name   = DRIVER_NAME,
-       },
-       .remove         = __exit_p(mx1_camera_remove),
-};
-
-module_platform_driver_probe(mx1_camera_driver, mx1_camera_probe);
-
-MODULE_DESCRIPTION("i.MX1/i.MXL SoC Camera Host driver");
-MODULE_AUTHOR("Paulius Zaleckas <paulius.zaleckas@teltonika.lt>");
-MODULE_LICENSE("GPL v2");
-MODULE_VERSION(DRIVER_VERSION);
-MODULE_ALIAS("platform:" DRIVER_NAME);