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[media] msi3101: use msi001 tuner driver 

Remove MSi001 RF tuner related code as MSi001 functionality is moved
to own driver.

Implement SPI master adapter.

Attach MSi001 driver via SPI / V4L subdev framework.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Antti Palosaari 2014-02-02 23:42:00 -03:00 committed by Mauro Carvalho Chehab
parent 93203dd6c7
commit 2e68f841a5
2 changed files with 136 additions and 350 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/staging/media/msi3101/Kconfig
View File

@ -1,8 +1,9 @@
config USB_MSI3101
tristate "Mirics MSi3101 SDR Dongle"
depends on USB && VIDEO_DEV && VIDEO_V4L2
depends on USB && VIDEO_DEV && VIDEO_V4L2 && SPI
select VIDEOBUF2_CORE
select VIDEOBUF2_VMALLOC
select MEDIA_TUNER_MSI001
config MEDIA_TUNER_MSI001
tristate "Mirics MSi001"

483
drivers/staging/media/msi3101/sdr-msi3101.c
View File

@ -25,7 +25,6 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/gcd.h>
#include <asm/div64.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
@ -33,6 +32,7 @@
#include <media/v4l2-event.h>
#include <linux/usb.h>
#include <media/videobuf2-vmalloc.h>
#include <linux/spi/spi.h>
/*
* iConfiguration 0
@ -57,7 +57,7 @@
#define V4L2_PIX_FMT_SDR_S14 v4l2_fourcc('D', 'S', '1', '4') /* signed 14-bit */
#define V4L2_PIX_FMT_SDR_MSI2500_384 v4l2_fourcc('M', '3', '8', '4') /* Mirics MSi2500 format 384 */
static const struct v4l2_frequency_band bands_adc[] = {
static const struct v4l2_frequency_band bands[] = {
{
.tuner = 0,
.type = V4L2_TUNER_ADC,
@ -68,24 +68,6 @@ static const struct v4l2_frequency_band bands_adc[] = {
},
};
static const struct v4l2_frequency_band bands_rf[] = {
{
.tuner = 1,
.type = V4L2_TUNER_RF,
.index = 0,
.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
.rangelow = 49000000,
.rangehigh = 263000000,
}, {
.tuner = 1,
.type = V4L2_TUNER_RF,
.index = 1,
.capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS,
.rangelow = 390000000,
.rangehigh = 960000000,
},
};
/* stream formats */
struct msi3101_format {
char *name;
@ -128,6 +110,8 @@ struct msi3101_frame_buf {
struct msi3101_state {
struct video_device vdev;
struct v4l2_device v4l2_dev;
struct v4l2_subdev *v4l2_subdev;
struct spi_master *master;
/* videobuf2 queue and queued buffers list */
struct vb2_queue vb_queue;
@ -141,7 +125,7 @@ struct msi3101_state {
/* Pointer to our usb_device, will be NULL after unplug */
struct usb_device *udev; /* Both mutexes most be hold when setting! */
unsigned int f_adc, f_tuner;
unsigned int f_adc;
u32 pixelformat;
unsigned int isoc_errors; /* number of contiguous ISOC errors */
@ -153,14 +137,6 @@ struct msi3101_state {
/* Controls */
struct v4l2_ctrl_handler hdl;
struct v4l2_ctrl *bandwidth_auto;
struct v4l2_ctrl *bandwidth;
struct v4l2_ctrl *lna_gain_auto;
struct v4l2_ctrl *lna_gain;
struct v4l2_ctrl *mixer_gain_auto;
struct v4l2_ctrl *mixer_gain;
struct v4l2_ctrl *if_gain_auto;
struct v4l2_ctrl *if_gain;
u32 next_sample; /* for track lost packets */
u32 sample; /* for sample rate calc */
@ -822,9 +798,9 @@ static void msi3101_disconnect(struct usb_interface *intf)
mutex_lock(&s->v4l2_lock);
/* No need to keep the urbs around after disconnection */
s->udev = NULL;
v4l2_device_disconnect(&s->v4l2_dev);
video_unregister_device(&s->vdev);
spi_unregister_master(s->master);
mutex_unlock(&s->v4l2_lock);
mutex_unlock(&s->vb_queue_lock);
@ -924,20 +900,25 @@ static int msi3101_ctrl_msg(struct msi3101_state *s, u8 cmd, u32 data)
return ret;
};
static int msi3101_tuner_write(struct msi3101_state *s, u32 data)
{
return msi3101_ctrl_msg(s, CMD_WREG, data << 8 | 0x09);
};
#define F_REF 24000000
#define DIV_R_IN 2
static int msi3101_set_usb_adc(struct msi3101_state *s)
{
int ret, div_n, div_m, div_r_out, f_sr, f_vco, fract;
u32 reg3, reg4, reg7;
struct v4l2_ctrl *bandwidth_auto;
struct v4l2_ctrl *bandwidth;
f_sr = s->f_adc;
/* set tuner, subdev, filters according to sampling rate */
bandwidth_auto = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH_AUTO);
bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
if (v4l2_ctrl_g_ctrl(bandwidth_auto)) {
bandwidth = v4l2_ctrl_find(&s->hdl, V4L2_CID_RF_TUNER_BANDWIDTH);
v4l2_ctrl_s_ctrl(bandwidth, s->f_adc);
}
/* select stream format */
switch (s->pixelformat) {
case V4L2_SDR_FMT_CU8:
@ -1066,222 +1047,6 @@ static int msi3101_set_usb_adc(struct msi3101_state *s)
return ret;
};
static int msi3101_set_gain(struct msi3101_state *s)
{
int ret;
u32 reg;
dev_dbg(&s->udev->dev, "%s: lna=%d mixer=%d if=%d\n", __func__,
s->lna_gain->val, s->mixer_gain->val, s->if_gain->val);
reg = 1 << 0;
reg |= (59 - s->if_gain->val) << 4;
reg |= 0 << 10;
reg |= (1 - s->mixer_gain->val) << 12;
reg |= (1 - s->lna_gain->val) << 13;
reg |= 4 << 14;
reg |= 0 << 17;
ret = msi3101_tuner_write(s, reg);
if (ret)
goto err;
return 0;
err:
dev_dbg(&s->udev->dev, "%s: failed %d\n", __func__, ret);
return ret;
};
static int msi3101_set_tuner(struct msi3101_state *s)
{
int ret, i;
unsigned int n, m, thresh, frac, vco_step, tmp, f_if1;
u32 reg;
u64 f_vco, tmp64;
u8 mode, filter_mode, lo_div;
static const struct {
u32 rf;
u8 mode;
u8 lo_div;
} band_lut[] = {
{ 50000000, 0xe1, 16}, /* AM_MODE2, antenna 2 */
{108000000, 0x42, 32}, /* VHF_MODE */
{330000000, 0x44, 16}, /* B3_MODE */
{960000000, 0x48, 4}, /* B45_MODE */
{ ~0U, 0x50, 2}, /* BL_MODE */
};
static const struct {
u32 freq;
u8 filter_mode;
} if_freq_lut[] = {
{ 0, 0x03}, /* Zero IF */
{ 450000, 0x02}, /* 450 kHz IF */
{1620000, 0x01}, /* 1.62 MHz IF */
{2048000, 0x00}, /* 2.048 MHz IF */
};
static const struct {
u32 freq;
u8 val;
} bandwidth_lut[] = {
{ 200000, 0x00}, /* 200 kHz */
{ 300000, 0x01}, /* 300 kHz */
{ 600000, 0x02}, /* 600 kHz */
{1536000, 0x03}, /* 1.536 MHz */
{5000000, 0x04}, /* 5 MHz */
{6000000, 0x05}, /* 6 MHz */
{7000000, 0x06}, /* 7 MHz */
{8000000, 0x07}, /* 8 MHz */
};
unsigned int f_rf = s->f_tuner;
/*
* bandwidth (Hz)
* 200000, 300000, 600000, 1536000, 5000000, 6000000, 7000000, 8000000
*/
unsigned int bandwidth;
/*
* intermediate frequency (Hz)
* 0, 450000, 1620000, 2048000
*/
unsigned int f_if = 0;
dev_dbg(&s->udev->dev,
"%s: f_rf=%d f_if=%d\n",
__func__, f_rf, f_if);
ret = -EINVAL;
for (i = 0; i < ARRAY_SIZE(band_lut); i++) {
if (f_rf <= band_lut[i].rf) {
mode = band_lut[i].mode;
lo_div = band_lut[i].lo_div;
break;
}
}
if (i == ARRAY_SIZE(band_lut))
goto err;
/* AM_MODE is upconverted */
if ((mode >> 0) & 0x1)
f_if1 = 5 * F_REF;
else
f_if1 = 0;
for (i = 0; i < ARRAY_SIZE(if_freq_lut); i++) {
if (f_if == if_freq_lut[i].freq) {
filter_mode = if_freq_lut[i].filter_mode;
break;
}
}
if (i == ARRAY_SIZE(if_freq_lut))
goto err;
/* filters */
if (s->bandwidth_auto->val)
bandwidth = s->f_adc;
else
bandwidth = s->bandwidth->val;
bandwidth = clamp(bandwidth, 200000U, 8000000U);
for (i = 0; i < ARRAY_SIZE(bandwidth_lut); i++) {
if (bandwidth <= bandwidth_lut[i].freq) {
bandwidth = bandwidth_lut[i].val;
break;
}
}
if (i == ARRAY_SIZE(bandwidth_lut))
goto err;
s->bandwidth->val = bandwidth_lut[i].freq;
dev_dbg(&s->udev->dev, "%s: bandwidth selected=%d\n",
__func__, bandwidth_lut[i].freq);
#define F_OUT_STEP 1
#define R_REF 4
f_vco = (f_rf + f_if + f_if1) * lo_div;
tmp64 = f_vco;
m = do_div(tmp64, F_REF * R_REF);
n = (unsigned int) tmp64;
vco_step = F_OUT_STEP * lo_div;
thresh = (F_REF * R_REF) / vco_step;
frac = 1ul * thresh * m / (F_REF * R_REF);
/* Find out greatest common divisor and divide to smaller. */
tmp = gcd(thresh, frac);
thresh /= tmp;
frac /= tmp;
/* Force divide to reg max. Resolution will be reduced. */
tmp = DIV_ROUND_UP(thresh, 4095);
thresh = DIV_ROUND_CLOSEST(thresh, tmp);
frac = DIV_ROUND_CLOSEST(frac, tmp);
/* calc real RF set */
tmp = 1ul * F_REF * R_REF * n;
tmp += 1ul * F_REF * R_REF * frac / thresh;
tmp /= lo_div;
dev_dbg(&s->udev->dev,
"%s: rf=%u:%u n=%d thresh=%d frac=%d\n",
__func__, f_rf, tmp, n, thresh, frac);
ret = msi3101_tuner_write(s, 0x00000e);
if (ret)
goto err;
ret = msi3101_tuner_write(s, 0x000003);
if (ret)
goto err;
reg = 0 << 0;
reg |= mode << 4;
reg |= filter_mode << 12;
reg |= bandwidth << 14;
reg |= 0x02 << 17;
reg |= 0x00 << 20;
ret = msi3101_tuner_write(s, reg);
if (ret)
goto err;
reg = 5 << 0;
reg |= thresh << 4;
reg |= 1 << 19;
reg |= 1 << 21;
ret = msi3101_tuner_write(s, reg);
if (ret)
goto err;
reg = 2 << 0;
reg |= frac << 4;
reg |= n << 16;
ret = msi3101_tuner_write(s, reg);
if (ret)
goto err;
ret = msi3101_set_gain(s);
if (ret)
goto err;
reg = 6 << 0;
reg |= 63 << 4;
reg |= 4095 << 10;
ret = msi3101_tuner_write(s, reg);
if (ret)
goto err;
return 0;
err:
dev_dbg(&s->udev->dev, "%s: failed %d\n", __func__, ret);
return ret;
};
static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count)
{
struct msi3101_state *s = vb2_get_drv_priv(vq);
@ -1294,6 +1059,9 @@ static int msi3101_start_streaming(struct vb2_queue *vq, unsigned int count)
if (mutex_lock_interruptible(&s->v4l2_lock))
return -ERESTARTSYS;
/* wake-up tuner */
v4l2_subdev_call(s->v4l2_subdev, core, s_power, 1);
ret = msi3101_set_usb_adc(s);
ret = msi3101_isoc_init(s);
@ -1328,7 +1096,7 @@ static int msi3101_stop_streaming(struct vb2_queue *vq)
msi3101_ctrl_msg(s, CMD_WREG, 0x01000003);
/* sleep tuner */
msi3101_tuner_write(s, 0x000000);
v4l2_subdev_call(s->v4l2_subdev, core, s_power, 0);
mutex_unlock(&s->v4l2_lock);
@ -1418,33 +1186,39 @@ static int msi3101_s_tuner(struct file *file, void *priv,
const struct v4l2_tuner *v)
{
struct msi3101_state *s = video_drvdata(file);
dev_dbg(&s->udev->dev, "%s:\n", __func__);
int ret;
dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index);
return 0;
if (v->index == 0)
ret = 0;
else if (v->index == 1)
ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_tuner, v);
else
ret = -EINVAL;
return ret;
}
static int msi3101_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
{
struct msi3101_state *s = video_drvdata(file);
dev_dbg(&s->udev->dev, "%s:\n", __func__);
int ret;
dev_dbg(&s->udev->dev, "%s: index=%d\n", __func__, v->index);
if (v->index == 0) {
strlcpy(v->name, "ADC: Mirics MSi2500", sizeof(v->name));
strlcpy(v->name, "Mirics MSi2500", sizeof(v->name));
v->type = V4L2_TUNER_ADC;
v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
v->rangelow = 1200000;
v->rangehigh = 15000000;
ret = 0;
} else if (v->index == 1) {
strlcpy(v->name, "RF: Mirics MSi001", sizeof(v->name));
v->type = V4L2_TUNER_RF;
v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS;
v->rangelow = 49000000;
v->rangehigh = 960000000;
ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_tuner, v);
} else {
return -EINVAL;
ret = -EINVAL;
}
return 0;
return ret;
}
static int msi3101_g_frequency(struct file *file, void *priv,
@ -1455,12 +1229,14 @@ static int msi3101_g_frequency(struct file *file, void *priv,
dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d\n",
__func__, f->tuner, f->type);
if (f->tuner == 0)
if (f->tuner == 0) {
f->frequency = s->f_adc;
else if (f->tuner == 1)
f->frequency = s->f_tuner;
else
return -EINVAL;
ret = 0;
} else if (f->tuner == 1) {
ret = v4l2_subdev_call(s->v4l2_subdev, tuner, g_frequency, f);
} else {
ret = -EINVAL;
}
return ret;
}
@ -1469,31 +1245,21 @@ static int msi3101_s_frequency(struct file *file, void *priv,
const struct v4l2_frequency *f)
{
struct msi3101_state *s = video_drvdata(file);
int ret, band;
int ret;
dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d frequency=%u\n",
__func__, f->tuner, f->type, f->frequency);
if (f->tuner == 0) {
s->f_adc = clamp_t(unsigned int, f->frequency,
bands_adc[0].rangelow,
bands_adc[0].rangehigh);
bands[0].rangelow,
bands[0].rangehigh);
dev_dbg(&s->udev->dev, "%s: ADC frequency=%u Hz\n",
__func__, s->f_adc);
ret = msi3101_set_usb_adc(s);
} else if (f->tuner == 1) {
#define BAND_RF_0 ((bands_rf[0].rangehigh + bands_rf[1].rangelow) / 2)
if (f->frequency < BAND_RF_0)
band = 0;
else
band = 1;
s->f_tuner = clamp_t(unsigned int, f->frequency,
bands_rf[band].rangelow,
bands_rf[band].rangehigh);
dev_dbg(&s->udev->dev, "%s: RF frequency=%u Hz\n",
__func__, f->frequency);
ret = msi3101_set_tuner(s);
ret = v4l2_subdev_call(s->v4l2_subdev, tuner, s_frequency, f);
} else {
return -EINVAL;
ret = -EINVAL;
}
return ret;
@ -1503,24 +1269,25 @@ static int msi3101_enum_freq_bands(struct file *file, void *priv,
struct v4l2_frequency_band *band)
{
struct msi3101_state *s = video_drvdata(file);
int ret;
dev_dbg(&s->udev->dev, "%s: tuner=%d type=%d index=%d\n",
__func__, band->tuner, band->type, band->index);
if (band->tuner == 0) {
if (band->index >= ARRAY_SIZE(bands_adc))
return -EINVAL;
*band = bands_adc[band->index];
if (band->index >= ARRAY_SIZE(bands)) {
ret = -EINVAL;
} else {
*band = bands[band->index];
ret = 0;
}
} else if (band->tuner == 1) {
if (band->index >= ARRAY_SIZE(bands_rf))
return -EINVAL;
*band = bands_rf[band->index];
ret = v4l2_subdev_call(s->v4l2_subdev, tuner,
enum_freq_bands, band);
} else {
return -EINVAL;
ret = -EINVAL;
}
return 0;
return ret;
}
static const struct v4l2_ioctl_ops msi3101_ioctl_ops = {
@ -1570,39 +1337,6 @@ static struct video_device msi3101_template = {
.ioctl_ops = &msi3101_ioctl_ops,
};
static int msi3101_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct msi3101_state *s =
container_of(ctrl->handler, struct msi3101_state,
hdl);
int ret;
dev_dbg(&s->udev->dev,
"%s: id=%d name=%s val=%d min=%d max=%d step=%d\n",
__func__, ctrl->id, ctrl->name, ctrl->val,
ctrl->minimum, ctrl->maximum, ctrl->step);
switch (ctrl->id) {
case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO:
case V4L2_CID_RF_TUNER_BANDWIDTH:
ret = msi3101_set_tuner(s);
break;
case V4L2_CID_RF_TUNER_LNA_GAIN:
case V4L2_CID_RF_TUNER_MIXER_GAIN:
case V4L2_CID_RF_TUNER_IF_GAIN:
ret = msi3101_set_gain(s);
break;
default:
dev_dbg(&s->udev->dev, "%s: EINVAL\n", __func__);
ret = -EINVAL;
}
return ret;
}
static const struct v4l2_ctrl_ops msi3101_ctrl_ops = {
.s_ctrl = msi3101_s_ctrl,
};
static void msi3101_video_release(struct v4l2_device *v)
{
struct msi3101_state *s =
@ -1613,13 +1347,43 @@ static void msi3101_video_release(struct v4l2_device *v)
kfree(s);
}
static int msi3101_transfer_one_message(struct spi_master *master,
struct spi_message *m)
{
struct msi3101_state *s = spi_master_get_devdata(master);
struct spi_transfer *t;
int ret = 0;
u32 data;
list_for_each_entry(t, &m->transfers, transfer_list) {
dev_dbg(&s->udev->dev, "%s: msg=%*ph\n",
__func__, t->len, t->tx_buf);
data = 0x09; /* reg 9 is SPI adapter */
data |= ((u8 *)t->tx_buf)[0] << 8;
data |= ((u8 *)t->tx_buf)[1] << 16;
data |= ((u8 *)t->tx_buf)[2] << 24;
ret = msi3101_ctrl_msg(s, CMD_WREG, data);
}
m->status = ret;
spi_finalize_current_message(master);
return ret;
}
static int msi3101_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(intf);
struct msi3101_state *s = NULL;
const struct v4l2_ctrl_ops *ops = &msi3101_ctrl_ops;
struct v4l2_subdev *sd;
struct spi_master *master;
int ret;
static struct spi_board_info board_info = {
.modalias = "msi001",
.bus_num = 0,
.chip_select = 0,
.max_speed_hz = 12000000,
};
s = kzalloc(sizeof(struct msi3101_state), GFP_KERNEL);
if (s == NULL) {
@ -1632,7 +1396,7 @@ static int msi3101_probe(struct usb_interface *intf,
spin_lock_init(&s->queued_bufs_lock);
INIT_LIST_HEAD(&s->queued_bufs);
s->udev = udev;
s->f_adc = bands_adc[0].rangelow;
s->f_adc = bands[0].rangelow;
s->pixelformat = V4L2_SDR_FMT_CU8;
/* Init videobuf2 queue structure */
@ -1656,34 +1420,53 @@ static int msi3101_probe(struct usb_interface *intf,
set_bit(V4L2_FL_USE_FH_PRIO, &s->vdev.flags);
video_set_drvdata(&s->vdev, s);
/* Register controls */
v4l2_ctrl_handler_init(&s->hdl, 5);
s->bandwidth_auto = v4l2_ctrl_new_std(&s->hdl, ops,
V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, 0, 1, 1, 1);
s->bandwidth = v4l2_ctrl_new_std(&s->hdl, ops,
V4L2_CID_RF_TUNER_BANDWIDTH, 0, 8000000, 1, 0);
v4l2_ctrl_auto_cluster(2, &s->bandwidth_auto, 0, false);
s->lna_gain = v4l2_ctrl_new_std(&s->hdl, ops,
V4L2_CID_RF_TUNER_LNA_GAIN, 0, 1, 1, 1);
s->mixer_gain = v4l2_ctrl_new_std(&s->hdl, ops,
V4L2_CID_RF_TUNER_MIXER_GAIN, 0, 1, 1, 1);
s->if_gain = v4l2_ctrl_new_std(&s->hdl, ops,
V4L2_CID_RF_TUNER_IF_GAIN, 0, 59, 1, 0);
if (s->hdl.error) {
ret = s->hdl.error;
dev_err(&s->udev->dev, "Could not initialize controls\n");
goto err_free_controls;
}
/* Register the v4l2_device structure */
s->v4l2_dev.release = msi3101_video_release;
ret = v4l2_device_register(&intf->dev, &s->v4l2_dev);
if (ret) {
dev_err(&s->udev->dev,
"Failed to register v4l2-device (%d)\n", ret);
goto err_free_mem;
}
/* SPI master adapter */
master = spi_alloc_master(&s->udev->dev, 0);
if (master == NULL) {
ret = -ENOMEM;
goto err_unregister_v4l2_dev;
}
s->master = master;
master->bus_num = 0;
master->num_chipselect = 1;
master->transfer_one_message = msi3101_transfer_one_message;
spi_master_set_devdata(master, s);
ret = spi_register_master(master);
if (ret) {
spi_master_put(master);
goto err_unregister_v4l2_dev;
}
/* load v4l2 subdevice */
sd = v4l2_spi_new_subdev(&s->v4l2_dev, master, &board_info);
s->v4l2_subdev = sd;
if (sd == NULL) {
dev_err(&s->udev->dev, "cannot get v4l2 subdevice\n");
ret = -ENODEV;
goto err_unregister_master;
}
/* Register controls */
v4l2_ctrl_handler_init(&s->hdl, 0);
if (s->hdl.error) {
ret = s->hdl.error;
dev_err(&s->udev->dev, "Could not initialize controls\n");
goto err_free_controls;
}
/* currently all controls are from subdev */
v4l2_ctrl_add_handler(&s->hdl, sd->ctrl_handler, NULL);
s->v4l2_dev.ctrl_handler = &s->hdl;
s->vdev.v4l2_dev = &s->v4l2_dev;
s->vdev.lock = &s->v4l2_lock;
@ -1700,10 +1483,12 @@ static int msi3101_probe(struct usb_interface *intf,
return 0;
err_unregister_v4l2_dev:
v4l2_device_unregister(&s->v4l2_dev);
err_free_controls:
v4l2_ctrl_handler_free(&s->hdl);
err_unregister_master:
spi_unregister_master(s->master);
err_unregister_v4l2_dev:
v4l2_device_unregister(&s->v4l2_dev);
err_free_mem:
kfree(s);
return ret;