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path: root/drivers/media/video/mt9v022.c
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Diffstat (limited to 'drivers/media/video/mt9v022.c')
-rw-r--r--drivers/media/video/mt9v022.c119
1 files changed, 60 insertions, 59 deletions
diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
index dbdcc86ae50d..959cc299f1ae 100644
--- a/drivers/media/video/mt9v022.c
+++ b/drivers/media/video/mt9v022.c
@@ -85,8 +85,6 @@ static const struct soc_camera_data_format mt9v022_monochrome_formats[] = {
};
struct mt9v022 {
- struct i2c_client *client;
- struct soc_camera_device icd;
int model; /* V4L2_IDENT_MT9V022* codes from v4l2-chip-ident.h */
u16 chip_control;
};
@@ -127,9 +125,9 @@ static int reg_clear(struct i2c_client *client, const u8 reg,
static int mt9v022_init(struct soc_camera_device *icd)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
int ret;
if (icl->power) {
@@ -173,19 +171,19 @@ static int mt9v022_init(struct soc_camera_device *icd)
static int mt9v022_release(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = mt9v022->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
if (icl->power)
- icl->power(&mt9v022->client->dev, 0);
+ icl->power(&client->dev, 0);
return 0;
}
static int mt9v022_start_capture(struct soc_camera_device *icd)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
/* Switch to master "normal" mode */
mt9v022->chip_control &= ~0x10;
if (reg_write(client, MT9V022_CHIP_CONTROL,
@@ -196,8 +194,8 @@ static int mt9v022_start_capture(struct soc_camera_device *icd)
static int mt9v022_stop_capture(struct soc_camera_device *icd)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
/* Switch to snapshot mode */
mt9v022->chip_control |= 0x10;
if (reg_write(client, MT9V022_CHIP_CONTROL,
@@ -209,9 +207,9 @@ static int mt9v022_stop_capture(struct soc_camera_device *icd)
static int mt9v022_set_bus_param(struct soc_camera_device *icd,
unsigned long flags)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
unsigned int width_flag = flags & SOCAM_DATAWIDTH_MASK;
int ret;
u16 pixclk = 0;
@@ -263,8 +261,7 @@ static int mt9v022_set_bus_param(struct soc_camera_device *icd,
static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = mt9v022->client->dev.platform_data;
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
unsigned int width_flag;
if (icl->query_bus_param)
@@ -283,7 +280,7 @@ static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd)
static int mt9v022_set_crop(struct soc_camera_device *icd,
struct v4l2_rect *rect)
{
- struct i2c_client *client = to_i2c_client(icd->control);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
int ret;
/* Like in example app. Contradicts the datasheet though */
@@ -326,7 +323,8 @@ static int mt9v022_set_crop(struct soc_camera_device *icd,
static int mt9v022_set_fmt(struct soc_camera_device *icd,
struct v4l2_format *f)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
struct v4l2_pix_format *pix = &f->fmt.pix;
struct v4l2_rect rect = {
.left = icd->x_current,
@@ -374,12 +372,13 @@ static int mt9v022_try_fmt(struct soc_camera_device *icd,
static int mt9v022_get_chip_id(struct soc_camera_device *icd,
struct v4l2_dbg_chip_ident *id)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
return -EINVAL;
- if (id->match.addr != mt9v022->client->addr)
+ if (id->match.addr != client->addr)
return -ENODEV;
id->ident = mt9v022->model;
@@ -392,7 +391,7 @@ static int mt9v022_get_chip_id(struct soc_camera_device *icd,
static int mt9v022_get_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct i2c_client *client = to_i2c_client(icd->control);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
@@ -412,7 +411,7 @@ static int mt9v022_get_register(struct soc_camera_device *icd,
static int mt9v022_set_register(struct soc_camera_device *icd,
struct v4l2_dbg_register *reg)
{
- struct i2c_client *client = to_i2c_client(icd->control);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
return -EINVAL;
@@ -481,15 +480,11 @@ static const struct v4l2_queryctrl mt9v022_controls[] = {
}
};
-static int mt9v022_video_probe(struct soc_camera_device *);
-static void mt9v022_video_remove(struct soc_camera_device *);
static int mt9v022_get_control(struct soc_camera_device *, struct v4l2_control *);
static int mt9v022_set_control(struct soc_camera_device *, struct v4l2_control *);
static struct soc_camera_ops mt9v022_ops = {
.owner = THIS_MODULE,
- .probe = mt9v022_video_probe,
- .remove = mt9v022_video_remove,
.init = mt9v022_init,
.release = mt9v022_release,
.start_capture = mt9v022_start_capture,
@@ -513,7 +508,7 @@ static struct soc_camera_ops mt9v022_ops = {
static int mt9v022_get_control(struct soc_camera_device *icd,
struct v4l2_control *ctrl)
{
- struct i2c_client *client = to_i2c_client(icd->control);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
int data;
switch (ctrl->id) {
@@ -549,7 +544,7 @@ static int mt9v022_set_control(struct soc_camera_device *icd,
struct v4l2_control *ctrl)
{
int data;
- struct i2c_client *client = to_i2c_client(icd->control);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
const struct v4l2_queryctrl *qctrl;
qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id);
@@ -646,11 +641,11 @@ static int mt9v022_set_control(struct soc_camera_device *icd,
/* Interface active, can use i2c. If it fails, it can indeed mean, that
* this wasn't our capture interface, so, we wait for the right one */
-static int mt9v022_video_probe(struct soc_camera_device *icd)
+static int mt9v022_video_probe(struct soc_camera_device *icd,
+ struct i2c_client *client)
{
- struct i2c_client *client = to_i2c_client(icd->control);
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
s32 data;
int ret;
unsigned long flags;
@@ -659,6 +654,11 @@ static int mt9v022_video_probe(struct soc_camera_device *icd)
to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
return -ENODEV;
+ /* Switch master clock on */
+ ret = soc_camera_video_start(icd, &client->dev);
+ if (ret)
+ return ret;
+
/* Read out the chip version register */
data = reg_read(client, MT9V022_CHIP_VERSION);
@@ -678,6 +678,8 @@ static int mt9v022_video_probe(struct soc_camera_device *icd)
udelay(200);
if (reg_read(client, MT9V022_RESET)) {
dev_err(&icd->dev, "Resetting MT9V022 failed!\n");
+ if (ret > 0)
+ ret = -EIO;
goto ei2c;
}
@@ -694,7 +696,7 @@ static int mt9v022_video_probe(struct soc_camera_device *icd)
}
if (ret < 0)
- goto eisis;
+ goto ei2c;
icd->num_formats = 0;
@@ -716,29 +718,23 @@ static int mt9v022_video_probe(struct soc_camera_device *icd)
if (flags & SOCAM_DATAWIDTH_8)
icd->num_formats++;
- ret = soc_camera_video_start(icd);
- if (ret < 0)
- goto eisis;
-
dev_info(&icd->dev, "Detected a MT9V022 chip ID %x, %s sensor\n",
data, mt9v022->model == V4L2_IDENT_MT9V022IX7ATM ?
"monochrome" : "colour");
- return 0;
-
-eisis:
ei2c:
+ soc_camera_video_stop(icd);
+
return ret;
}
static void mt9v022_video_remove(struct soc_camera_device *icd)
{
- struct mt9v022 *mt9v022 = container_of(icd, struct mt9v022, icd);
- struct soc_camera_link *icl = mt9v022->client->dev.platform_data;
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
- dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", mt9v022->client->addr,
+ dev_dbg(&icd->dev, "Video %x removed: %p, %p\n", client->addr,
icd->dev.parent, icd->vdev);
- soc_camera_video_stop(icd);
if (icl->free_bus)
icl->free_bus(icl);
}
@@ -747,11 +743,17 @@ static int mt9v022_probe(struct i2c_client *client,
const struct i2c_device_id *did)
{
struct mt9v022 *mt9v022;
- struct soc_camera_device *icd;
+ struct soc_camera_device *icd = client->dev.platform_data;
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- struct soc_camera_link *icl = client->dev.platform_data;
+ struct soc_camera_link *icl;
int ret;
+ if (!icd) {
+ dev_err(&client->dev, "MT9V022: missing soc-camera data!\n");
+ return -EINVAL;
+ }
+
+ icl = to_soc_camera_link(icd);
if (!icl) {
dev_err(&client->dev, "MT9V022 driver needs platform data\n");
return -EINVAL;
@@ -768,12 +770,9 @@ static int mt9v022_probe(struct i2c_client *client,
return -ENOMEM;
mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT;
- mt9v022->client = client;
i2c_set_clientdata(client, mt9v022);
- icd = &mt9v022->icd;
icd->ops = &mt9v022_ops;
- icd->control = &client->dev;
icd->x_min = 1;
icd->y_min = 4;
icd->x_current = 1;
@@ -783,24 +782,26 @@ static int mt9v022_probe(struct i2c_client *client,
icd->height_min = 32;
icd->height_max = 480;
icd->y_skip_top = 1;
- icd->iface = icl->bus_id;
-
- ret = soc_camera_device_register(icd);
- if (ret)
- goto eisdr;
- return 0;
+ ret = mt9v022_video_probe(icd, client);
+ if (ret) {
+ icd->ops = NULL;
+ i2c_set_clientdata(client, NULL);
+ kfree(mt9v022);
+ }
-eisdr:
- kfree(mt9v022);
return ret;
}
static int mt9v022_remove(struct i2c_client *client)
{
struct mt9v022 *mt9v022 = i2c_get_clientdata(client);
+ struct soc_camera_device *icd = client->dev.platform_data;
- soc_camera_device_unregister(&mt9v022->icd);
+ icd->ops = NULL;
+ mt9v022_video_remove(icd);
+ i2c_set_clientdata(client, NULL);
+ client->driver = NULL;
kfree(mt9v022);
return 0;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 19:34:12 +0300