summaryrefslogtreecommitdiffstats
path: root/drivers/media/platform/soc_camera
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/platform/soc_camera')
-rw-r--r--drivers/media/platform/soc_camera/Kconfig18
-rw-r--r--drivers/media/platform/soc_camera/Makefile1
-rw-r--r--drivers/media/platform/soc_camera/atmel-isi.c90
-rw-r--r--drivers/media/platform/soc_camera/mx1_camera.c866
-rw-r--r--drivers/media/platform/soc_camera/pxa_camera.c81
-rw-r--r--drivers/media/platform/soc_camera/rcar_vin.c82
-rw-r--r--drivers/media/platform/soc_camera/soc_camera.c141
7 files changed, 367 insertions, 912 deletions
diff --git a/drivers/media/platform/soc_camera/Kconfig b/drivers/media/platform/soc_camera/Kconfig
index af39c4665554..6540847f4e1d 100644
--- a/drivers/media/platform/soc_camera/Kconfig
+++ b/drivers/media/platform/soc_camera/Kconfig
@@ -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
@@ -47,6 +34,7 @@ config VIDEO_PXA27x
config VIDEO_RCAR_VIN
tristate "R-Car Video Input (VIN) support"
depends on VIDEO_DEV && SOC_CAMERA
+ depends on ARCH_SHMOBILE || COMPILE_TEST
select VIDEOBUF2_DMA_CONTIG
select SOC_CAMERA_SCALE_CROP
---help---
@@ -55,12 +43,14 @@ config VIDEO_RCAR_VIN
config VIDEO_SH_MOBILE_CSI2
tristate "SuperH Mobile MIPI CSI-2 Interface driver"
depends on VIDEO_DEV && SOC_CAMERA && HAVE_CLK
+ depends on ARCH_SHMOBILE || SUPERH || COMPILE_TEST
---help---
This is a v4l2 driver for the SuperH MIPI CSI-2 Interface
config VIDEO_SH_MOBILE_CEU
tristate "SuperH Mobile CEU Interface driver"
depends on VIDEO_DEV && SOC_CAMERA && HAS_DMA && HAVE_CLK
+ depends on ARCH_SHMOBILE || SUPERH || COMPILE_TEST
select VIDEOBUF2_DMA_CONTIG
select SOC_CAMERA_SCALE_CROP
---help---
@@ -76,7 +66,7 @@ config VIDEO_OMAP1
config VIDEO_MX2
tristate "i.MX27 Camera Sensor Interface driver"
- depends on VIDEO_DEV && SOC_CAMERA && MACH_MX27
+ depends on VIDEO_DEV && SOC_CAMERA && SOC_IMX27
select VIDEOBUF2_DMA_CONTIG
---help---
This is a v4l2 driver for the i.MX27 Camera Sensor Interface
diff --git a/drivers/media/platform/soc_camera/Makefile b/drivers/media/platform/soc_camera/Makefile
index 8aed26d7a64d..2826382dc9f8 100644
--- a/drivers/media/platform/soc_camera/Makefile
+++ b/drivers/media/platform/soc_camera/Makefile
@@ -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/atmel-isi.c b/drivers/media/platform/soc_camera/atmel-isi.c
index 38c723aca438..3408b045b3f1 100644
--- a/drivers/media/platform/soc_camera/atmel-isi.c
+++ b/drivers/media/platform/soc_camera/atmel-isi.c
@@ -25,6 +25,7 @@
#include <media/atmel-isi.h>
#include <media/soc_camera.h>
#include <media/soc_mediabus.h>
+#include <media/v4l2-of.h>
#include <media/videobuf2-dma-contig.h>
#define MAX_BUFFER_NUM 32
@@ -33,6 +34,7 @@
#define VID_LIMIT_BYTES (16 * 1024 * 1024)
#define MIN_FRAME_RATE 15
#define FRAME_INTERVAL_MILLI_SEC (1000 / MIN_FRAME_RATE)
+#define ISI_DEFAULT_MCLK_FREQ 25000000
/* Frame buffer descriptor */
struct fbd {
@@ -84,7 +86,7 @@ struct atmel_isi {
struct clk *mck;
unsigned int irq;
- struct isi_platform_data *pdata;
+ struct isi_platform_data pdata;
u16 width_flags; /* max 12 bits */
struct list_head video_buffer_list;
@@ -350,7 +352,7 @@ static void start_dma(struct atmel_isi *isi, struct frame_buffer *buffer)
cfg1 &= ~ISI_CFG1_FRATE_DIV_MASK;
/* Enable linked list */
- cfg1 |= isi->pdata->frate | ISI_CFG1_DISCR;
+ cfg1 |= isi->pdata.frate | ISI_CFG1_DISCR;
/* Enable codec path and ISI */
ctrl = ISI_CTRL_CDC | ISI_CTRL_EN;
@@ -795,7 +797,7 @@ static int isi_camera_set_bus_param(struct soc_camera_device *icd)
/* Make choises, based on platform preferences */
if ((common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) {
- if (isi->pdata->hsync_act_low)
+ if (isi->pdata.hsync_act_low)
common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_HIGH;
else
common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_LOW;
@@ -803,7 +805,7 @@ static int isi_camera_set_bus_param(struct soc_camera_device *icd)
if ((common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) {
- if (isi->pdata->vsync_act_low)
+ if (isi->pdata.vsync_act_low)
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH;
else
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW;
@@ -811,7 +813,7 @@ static int isi_camera_set_bus_param(struct soc_camera_device *icd)
if ((common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING) &&
(common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)) {
- if (isi->pdata->pclk_act_falling)
+ if (isi->pdata.pclk_act_falling)
common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_RISING;
else
common_flags &= ~V4L2_MBUS_PCLK_SAMPLE_FALLING;
@@ -833,9 +835,9 @@ static int isi_camera_set_bus_param(struct soc_camera_device *icd)
if (common_flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
cfg1 |= ISI_CFG1_PIXCLK_POL_ACTIVE_FALLING;
- if (isi->pdata->has_emb_sync)
+ if (isi->pdata.has_emb_sync)
cfg1 |= ISI_CFG1_EMB_SYNC;
- if (isi->pdata->full_mode)
+ if (isi->pdata.full_mode)
cfg1 |= ISI_CFG1_FULL_MODE;
isi_writel(isi, ISI_CTRL, ISI_CTRL_DIS);
@@ -876,6 +878,51 @@ static int atmel_isi_remove(struct platform_device *pdev)
return 0;
}
+static int atmel_isi_probe_dt(struct atmel_isi *isi,
+ struct platform_device *pdev)
+{
+ struct device_node *np= pdev->dev.of_node;
+ struct v4l2_of_endpoint ep;
+ int err;
+
+ /* Default settings for ISI */
+ isi->pdata.full_mode = 1;
+ isi->pdata.mck_hz = ISI_DEFAULT_MCLK_FREQ;
+ isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL;
+
+ np = of_graph_get_next_endpoint(np, NULL);
+ if (!np) {
+ dev_err(&pdev->dev, "Could not find the endpoint\n");
+ return -EINVAL;
+ }
+
+ err = v4l2_of_parse_endpoint(np, &ep);
+ if (err) {
+ dev_err(&pdev->dev, "Could not parse the endpoint\n");
+ goto err_probe_dt;
+ }
+
+ switch (ep.bus.parallel.bus_width) {
+ case 8:
+ isi->pdata.data_width_flags = ISI_DATAWIDTH_8;
+ break;
+ case 10:
+ isi->pdata.data_width_flags =
+ ISI_DATAWIDTH_8 | ISI_DATAWIDTH_10;
+ break;
+ default:
+ dev_err(&pdev->dev, "Unsupported bus width: %d\n",
+ ep.bus.parallel.bus_width);
+ err = -EINVAL;
+ goto err_probe_dt;
+ }
+
+err_probe_dt:
+ of_node_put(np);
+
+ return err;
+}
+
static int atmel_isi_probe(struct platform_device *pdev)
{
unsigned int irq;
@@ -887,7 +934,7 @@ static int atmel_isi_probe(struct platform_device *pdev)
struct isi_platform_data *pdata;
pdata = dev->platform_data;
- if (!pdata || !pdata->data_width_flags) {
+ if ((!pdata || !pdata->data_width_flags) && !pdev->dev.of_node) {
dev_err(&pdev->dev,
"No config available for Atmel ISI\n");
return -EINVAL;
@@ -903,7 +950,14 @@ static int atmel_isi_probe(struct platform_device *pdev)
if (IS_ERR(isi->pclk))
return PTR_ERR(isi->pclk);
- isi->pdata = pdata;
+ if (pdata) {
+ memcpy(&isi->pdata, pdata, sizeof(isi->pdata));
+ } else {
+ ret = atmel_isi_probe_dt(isi, pdev);
+ if (ret)
+ return ret;
+ }
+
isi->active = NULL;
spin_lock_init(&isi->lock);
INIT_LIST_HEAD(&isi->video_buffer_list);
@@ -919,7 +973,7 @@ static int atmel_isi_probe(struct platform_device *pdev)
/* Set ISI_MCK's frequency, it should be faster than pixel
* clock.
*/
- ret = clk_set_rate(isi->mck, pdata->mck_hz);
+ ret = clk_set_rate(isi->mck, isi->pdata.mck_hz);
if (ret < 0)
return ret;
}
@@ -953,9 +1007,9 @@ static int atmel_isi_probe(struct platform_device *pdev)
goto err_ioremap;
}
- if (pdata->data_width_flags & ISI_DATAWIDTH_8)
+ if (isi->pdata.data_width_flags & ISI_DATAWIDTH_8)
isi->width_flags = 1 << 7;
- if (pdata->data_width_flags & ISI_DATAWIDTH_10)
+ if (isi->pdata.data_width_flags & ISI_DATAWIDTH_10)
isi->width_flags |= 1 << 9;
isi_writel(isi, ISI_CTRL, ISI_CTRL_DIS);
@@ -980,6 +1034,11 @@ static int atmel_isi_probe(struct platform_device *pdev)
soc_host->v4l2_dev.dev = &pdev->dev;
soc_host->nr = pdev->id;
+ if (isi->pdata.asd_sizes) {
+ soc_host->asd = isi->pdata.asd;
+ soc_host->asd_sizes = isi->pdata.asd_sizes;
+ }
+
ret = soc_camera_host_register(soc_host);
if (ret) {
dev_err(&pdev->dev, "Unable to register soc camera host\n");
@@ -1000,11 +1059,18 @@ err_alloc_ctx:
return ret;
}
+static const struct of_device_id atmel_isi_of_match[] = {
+ { .compatible = "atmel,at91sam9g45-isi" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, atmel_isi_of_match);
+
static struct platform_driver atmel_isi_driver = {
.remove = atmel_isi_remove,
.driver = {
.name = "atmel_isi",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(atmel_isi_of_match),
},
};
diff --git a/drivers/media/platform/soc_camera/mx1_camera.c b/drivers/media/platform/soc_camera/mx1_camera.c
deleted file mode 100644
index fea3e61476ae..000000000000
--- a/drivers/media/platform/soc_camera/mx1_camera.c
+++ /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);
diff --git a/drivers/media/platform/soc_camera/pxa_camera.c b/drivers/media/platform/soc_camera/pxa_camera.c
index d4df305fcc18..64dc80ccd6f9 100644
--- a/drivers/media/platform/soc_camera/pxa_camera.c
+++ b/drivers/media/platform/soc_camera/pxa_camera.c
@@ -34,6 +34,7 @@
#include <media/videobuf-dma-sg.h>
#include <media/soc_camera.h>
#include <media/soc_mediabus.h>
+#include <media/v4l2-of.h>
#include <linux/videodev2.h>
@@ -1650,6 +1651,68 @@ static struct soc_camera_host_ops pxa_soc_camera_host_ops = {
.set_bus_param = pxa_camera_set_bus_param,
};
+static int pxa_camera_pdata_from_dt(struct device *dev,
+ struct pxa_camera_dev *pcdev)
+{
+ u32 mclk_rate;
+ struct device_node *np = dev->of_node;
+ struct v4l2_of_endpoint ep;
+ int err = of_property_read_u32(np, "clock-frequency",
+ &mclk_rate);
+ if (!err) {
+ pcdev->platform_flags |= PXA_CAMERA_MCLK_EN;
+ pcdev->mclk = mclk_rate;
+ }
+
+ np = of_graph_get_next_endpoint(np, NULL);
+ if (!np) {
+ dev_err(dev, "could not find endpoint\n");
+ return -EINVAL;
+ }
+
+ err = v4l2_of_parse_endpoint(np, &ep);
+ if (err) {
+ dev_err(dev, "could not parse endpoint\n");
+ goto out;
+ }
+
+ switch (ep.bus.parallel.bus_width) {
+ case 4:
+ pcdev->platform_flags |= PXA_CAMERA_DATAWIDTH_4;
+ break;
+ case 5:
+ pcdev->platform_flags |= PXA_CAMERA_DATAWIDTH_5;
+ break;
+ case 8:
+ pcdev->platform_flags |= PXA_CAMERA_DATAWIDTH_8;
+ break;
+ case 9:
+ pcdev->platform_flags |= PXA_CAMERA_DATAWIDTH_9;
+ break;
+ case 10:
+ pcdev->platform_flags |= PXA_CAMERA_DATAWIDTH_10;
+ break;
+ default:
+ break;
+ };
+
+ if (ep.bus.parallel.flags & V4L2_MBUS_MASTER)
+ pcdev->platform_flags |= PXA_CAMERA_MASTER;
+ if (ep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
+ pcdev->platform_flags |= PXA_CAMERA_HSP;
+ if (ep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
+ pcdev->platform_flags |= PXA_CAMERA_VSP;
+ if (ep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
+ pcdev->platform_flags |= PXA_CAMERA_PCLK_EN | PXA_CAMERA_PCP;
+ if (ep.bus.parallel.flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
+ pcdev->platform_flags |= PXA_CAMERA_PCLK_EN;
+
+out:
+ of_node_put(np);
+
+ return err;
+}
+
static int pxa_camera_probe(struct platform_device *pdev)
{
struct pxa_camera_dev *pcdev;
@@ -1676,7 +1739,15 @@ static int pxa_camera_probe(struct platform_device *pdev)
pcdev->res = res;
pcdev->pdata = pdev->dev.platform_data;
- pcdev->platform_flags = pcdev->pdata->flags;
+ if (&pdev->dev.of_node && !pcdev->pdata) {
+ err = pxa_camera_pdata_from_dt(&pdev->dev, pcdev);
+ } else {
+ pcdev->platform_flags = pcdev->pdata->flags;
+ pcdev->mclk = pcdev->pdata->mclk_10khz * 10000;
+ }
+ if (err < 0)
+ return err;
+
if (!(pcdev->platform_flags & (PXA_CAMERA_DATAWIDTH_8 |
PXA_CAMERA_DATAWIDTH_9 | PXA_CAMERA_DATAWIDTH_10))) {
/*
@@ -1693,7 +1764,6 @@ static int pxa_camera_probe(struct platform_device *pdev)
pcdev->width_flags |= 1 << 8;
if (pcdev->platform_flags & PXA_CAMERA_DATAWIDTH_10)
pcdev->width_flags |= 1 << 9;
- pcdev->mclk = pcdev->pdata->mclk_10khz * 10000;
if (!pcdev->mclk) {
dev_warn(&pdev->dev,
"mclk == 0! Please, fix your platform data. "
@@ -1799,10 +1869,17 @@ static const struct dev_pm_ops pxa_camera_pm = {
.resume = pxa_camera_resume,
};
+static const struct of_device_id pxa_camera_of_match[] = {
+ { .compatible = "marvell,pxa270-qci", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, pxa_camera_of_match);
+
static struct platform_driver pxa_camera_driver = {
.driver = {
.name = PXA_CAM_DRV_NAME,
.pm = &pxa_camera_pm,
+ .of_match_table = of_match_ptr(pxa_camera_of_match),
},
.probe = pxa_camera_probe,
.remove = pxa_camera_remove,
diff --git a/drivers/media/platform/soc_camera/rcar_vin.c b/drivers/media/platform/soc_camera/rcar_vin.c
index e594230e84d3..85d579f65f52 100644
--- a/drivers/media/platform/soc_camera/rcar_vin.c
+++ b/drivers/media/platform/soc_camera/rcar_vin.c
@@ -19,6 +19,8 @@
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/platform_data/camera-rcar.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@@ -31,6 +33,7 @@
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#include <media/v4l2-mediabus.h>
+#include <media/v4l2-of.h>
#include <media/v4l2-subdev.h>
#include <media/videobuf2-dma-contig.h>
@@ -126,13 +129,13 @@ struct rcar_vin_priv {
int sequence;
/* State of the VIN module in capturing mode */
enum rcar_vin_state state;
- struct rcar_vin_platform_data *pdata;
struct soc_camera_host ici;
struct list_head capture;
#define MAX_BUFFER_NUM 3
struct vb2_buffer *queue_buf[MAX_BUFFER_NUM];
struct vb2_alloc_ctx *alloc_ctx;
enum v4l2_field field;
+ unsigned int pdata_flags;
unsigned int vb_count;
unsigned int nr_hw_slots;
bool request_to_stop;
@@ -275,12 +278,12 @@ static int rcar_vin_setup(struct rcar_vin_priv *priv)
break;
case V4L2_MBUS_FMT_YUYV8_2X8:
/* BT.656 8bit YCbCr422 or BT.601 8bit YCbCr422 */
- vnmc |= priv->pdata->flags & RCAR_VIN_BT656 ?
+ vnmc |= priv->pdata_flags & RCAR_VIN_BT656 ?
VNMC_INF_YUV8_BT656 : VNMC_INF_YUV8_BT601;
break;
case V4L2_MBUS_FMT_YUYV10_2X10:
/* BT.656 10bit YCbCr422 or BT.601 10bit YCbCr422 */
- vnmc |= priv->pdata->flags & RCAR_VIN_BT656 ?
+ vnmc |= priv->pdata_flags & RCAR_VIN_BT656 ?
VNMC_INF_YUV10_BT656 : VNMC_INF_YUV10_BT601;
break;
default:
@@ -797,7 +800,7 @@ static int rcar_vin_set_bus_param(struct soc_camera_device *icd)
/* Make choises, based on platform preferences */
if ((common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)) {
- if (priv->pdata->flags & RCAR_VIN_HSYNC_ACTIVE_LOW)
+ if (priv->pdata_flags & RCAR_VIN_HSYNC_ACTIVE_LOW)
common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_HIGH;
else
common_flags &= ~V4L2_MBUS_HSYNC_ACTIVE_LOW;
@@ -805,7 +808,7 @@ static int rcar_vin_set_bus_param(struct soc_camera_device *icd)
if ((common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) &&
(common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) {
- if (priv->pdata->flags & RCAR_VIN_VSYNC_ACTIVE_LOW)
+ if (priv->pdata_flags & RCAR_VIN_VSYNC_ACTIVE_LOW)
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_HIGH;
else
common_flags &= ~V4L2_MBUS_VSYNC_ACTIVE_LOW;
@@ -1390,6 +1393,17 @@ static struct soc_camera_host_ops rcar_vin_host_ops = {
.init_videobuf2 = rcar_vin_init_videobuf2,
};
+#ifdef CONFIG_OF
+static struct of_device_id rcar_vin_of_table[] = {
+ { .compatible = "renesas,vin-r8a7791", .data = (void *)RCAR_GEN2 },
+ { .compatible = "renesas,vin-r8a7790", .data = (void *)RCAR_GEN2 },
+ { .compatible = "renesas,vin-r8a7779", .data = (void *)RCAR_H1 },
+ { .compatible = "renesas,vin-r8a7778", .data = (void *)RCAR_M1 },
+ { },
+};
+MODULE_DEVICE_TABLE(of, rcar_vin_of_table);
+#endif
+
static struct platform_device_id rcar_vin_id_table[] = {
{ "r8a7791-vin", RCAR_GEN2 },
{ "r8a7790-vin", RCAR_GEN2 },
@@ -1402,15 +1416,52 @@ MODULE_DEVICE_TABLE(platform, rcar_vin_id_table);
static int rcar_vin_probe(struct platform_device *pdev)
{
+ const struct of_device_id *match = NULL;
struct rcar_vin_priv *priv;
struct resource *mem;
struct rcar_vin_platform_data *pdata;
+ unsigned int pdata_flags;
int irq, ret;
- pdata = pdev->dev.platform_data;
- if (!pdata || !pdata->flags) {
- dev_err(&pdev->dev, "platform data not set\n");
- return -EINVAL;
+ if (pdev->dev.of_node) {
+ struct v4l2_of_endpoint ep;
+ struct device_node *np;
+
+ match = of_match_device(of_match_ptr(rcar_vin_of_table),
+ &pdev->dev);
+
+ np = of_graph_get_next_endpoint(pdev->dev.of_node, NULL);
+ if (!np) {
+ dev_err(&pdev->dev, "could not find endpoint\n");
+ return -EINVAL;
+ }
+
+ ret = v4l2_of_parse_endpoint(np, &ep);
+ if (ret) {
+ dev_err(&pdev->dev, "could not parse endpoint\n");
+ return ret;
+ }
+
+ if (ep.bus_type == V4L2_MBUS_BT656)
+ pdata_flags = RCAR_VIN_BT656;
+ else {
+ pdata_flags = 0;
+ if (ep.bus.parallel.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
+ pdata_flags |= RCAR_VIN_HSYNC_ACTIVE_LOW;
+ if (ep.bus.parallel.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
+ pdata_flags |= RCAR_VIN_VSYNC_ACTIVE_LOW;
+ }
+
+ of_node_put(np);
+
+ dev_dbg(&pdev->dev, "pdata_flags = %08x\n", pdata_flags);
+ } else {
+ pdata = pdev->dev.platform_data;
+ if (!pdata || !pdata->flags) {
+ dev_err(&pdev->dev, "platform data not set\n");
+ return -EINVAL;
+ }
+ pdata_flags = pdata->flags;
}
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1441,12 +1492,18 @@ static int rcar_vin_probe(struct platform_device *pdev)
priv->ici.priv = priv;
priv->ici.v4l2_dev.dev = &pdev->dev;
- priv->ici.nr = pdev->id;
priv->ici.drv_name = dev_name(&pdev->dev);
priv->ici.ops = &rcar_vin_host_ops;
- priv->pdata = pdata;
- priv->chip = pdev->id_entry->driver_data;
+ priv->pdata_flags = pdata_flags;
+ if (!match) {
+ priv->ici.nr = pdev->id;
+ priv->chip = pdev->id_entry->driver_data;
+ } else {
+ priv->ici.nr = of_alias_get_id(pdev->dev.of_node, "vin");
+ priv->chip = (enum chip_id)match->data;
+ };
+
spin_lock_init(&priv->lock);
INIT_LIST_HEAD(&priv->capture);
@@ -1487,6 +1544,7 @@ static struct platform_driver rcar_vin_driver = {
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(rcar_vin_of_table),
},
.id_table = rcar_vin_id_table,
};
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 7fec8cdaf095..f4308fed5431 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -36,6 +36,7 @@
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-dev.h>
+#include <media/v4l2-of.h>
#include <media/videobuf-core.h>
#include <media/videobuf2-core.h>
@@ -1524,14 +1525,14 @@ static int scan_async_group(struct soc_camera_host *ici,
ret = soc_camera_dyn_pdev(&sdesc, sasc);
if (ret < 0)
- return ret;
+ goto eallocpdev;
sasc->sensor = &sasd->asd;
icd = soc_camera_add_pdev(sasc);
if (!icd) {
- platform_device_put(sasc->pdev);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto eaddpdev;
}
sasc->notifier.subdevs = asd;
@@ -1559,7 +1560,11 @@ static int scan_async_group(struct soc_camera_host *ici,
v4l2_clk_unregister(icd->clk);
eclkreg:
icd->clk = NULL;
- platform_device_unregister(sasc->pdev);
+ platform_device_del(sasc->pdev);
+eaddpdev:
+ platform_device_put(sasc->pdev);
+eallocpdev:
+ devm_kfree(ici->v4l2_dev.dev, sasc);
dev_err(ici->v4l2_dev.dev, "group probe failed: %d\n", ret);
return ret;
@@ -1581,6 +1586,130 @@ static void scan_async_host(struct soc_camera_host *ici)
#define scan_async_host(ici) do {} while (0)
#endif
+#ifdef CONFIG_OF
+
+struct soc_of_info {
+ struct soc_camera_async_subdev sasd;
+ struct soc_camera_async_client sasc;
+ struct v4l2_async_subdev *subdev;
+};
+
+static int soc_of_bind(struct soc_camera_host *ici,
+ struct device_node *ep,
+ struct device_node *remote)
+{
+ struct soc_camera_device *icd;
+ struct soc_camera_desc sdesc = {.host_desc.bus_id = ici->nr,};
+ struct soc_camera_async_client *sasc;
+ struct soc_of_info *info;
+ struct i2c_client *client;
+ char clk_name[V4L2_SUBDEV_NAME_SIZE];
+ int ret;
+
+ /* allocate a new subdev and add match info to it */
+ info = devm_kzalloc(ici->v4l2_dev.dev, sizeof(struct soc_of_info),
+ GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->sasd.asd.match.of.node = remote;
+ info->sasd.asd.match_type = V4L2_ASYNC_MATCH_OF;
+ info->subdev = &info->sasd.asd;
+
+ /* Or shall this be managed by the soc-camera device? */
+ sasc = &info->sasc;
+
+ /* HACK: just need a != NULL */
+ sdesc.host_desc.board_info = ERR_PTR(-ENODATA);
+
+ ret = soc_camera_dyn_pdev(&sdesc, sasc);
+ if (ret < 0)
+ goto eallocpdev;
+
+ sasc->sensor = &info->sasd.asd;
+
+ icd = soc_camera_add_pdev(sasc);
+ if (!icd) {
+ ret = -ENOMEM;
+ goto eaddpdev;
+ }
+
+ sasc->notifier.subdevs = &info->subdev;
+ sasc->notifier.num_subdevs = 1;
+ sasc->notifier.bound = soc_camera_async_bound;
+ sasc->notifier.unbind = soc_camera_async_unbind;
+ sasc->notifier.complete = soc_camera_async_complete;
+
+ icd->sasc = sasc;
+ icd->parent = ici->v4l2_dev.dev;
+
+ client = of_find_i2c_device_by_node(remote);
+
+ if (client)
+ snprintf(clk_name, sizeof(clk_name), "%d-%04x",
+ client->adapter->nr, client->addr);
+ else
+ snprintf(clk_name, sizeof(clk_name), "of-%s",
+ of_node_full_name(remote));
+
+ icd->clk = v4l2_clk_register(&soc_camera_clk_ops, clk_name, "mclk", icd);
+ if (IS_ERR(icd->clk)) {
+ ret = PTR_ERR(icd->clk);
+ goto eclkreg;
+ }
+
+ ret = v4l2_async_notifier_register(&ici->v4l2_dev, &sasc->notifier);
+ if (!ret)
+ return 0;
+eclkreg:
+ icd->clk = NULL;
+ platform_device_del(sasc->pdev);
+eaddpdev:
+ platform_device_put(sasc->pdev);
+eallocpdev:
+ devm_kfree(ici->v4l2_dev.dev, sasc);
+ dev_err(ici->v4l2_dev.dev, "group probe failed: %d\n", ret);
+
+ return ret;
+}
+
+static void scan_of_host(struct soc_camera_host *ici)
+{
+ struct device *dev = ici->v4l2_dev.dev;
+ struct device_node *np = dev->of_node;
+ struct device_node *epn = NULL, *ren;
+ unsigned int i;
+
+ for (i = 0; ; i++) {
+ epn = of_graph_get_next_endpoint(np, epn);
+ if (!epn)
+ break;
+
+ ren = of_graph_get_remote_port(epn);
+ if (!ren) {
+ dev_notice(dev, "no remote for %s\n",
+ of_node_full_name(epn));
+ continue;
+ }
+
+ /* so we now have a remote node to connect */
+ if (!i)
+ soc_of_bind(ici, epn, ren->parent);
+
+ of_node_put(epn);
+ of_node_put(ren);
+
+ if (i) {
+ dev_err(dev, "multiple subdevices aren't supported yet!\n");
+ break;
+ }
+ }
+}
+
+#else
+static inline void scan_of_host(struct soc_camera_host *ici) { }
+#endif
+
/* Called during host-driver probe */
static int soc_camera_probe(struct soc_camera_host *ici,
struct soc_camera_device *icd)
@@ -1832,7 +1961,9 @@ int soc_camera_host_register(struct soc_camera_host *ici)
mutex_init(&ici->host_lock);
mutex_init(&ici->clk_lock);
- if (ici->asd_sizes)
+ if (ici->v4l2_dev.dev->of_node)
+ scan_of_host(ici);
+ else if (ici->asd_sizes)
/*
* No OF, host with a list of subdevices. Don't try to mix
* modes by initialising some groups statically and some
OpenPOWER on IntegriCloud