[media] move i2c files into drivers/media/i2c

Move ancillary I2C drivers into drivers/media/i2c, in order to
better organize them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 667 insertions, 0 deletions

diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
new file mode 100644
index 000000000000..45ecf8db1eae
--- /dev/null
+++ b/drivers/media/i2c/adv7180.c
@@ -0,0 +1,667 @@
+/*
+ * adv7180.c Analog Devices ADV7180 video decoder driver
+ * Copyright (c) 2009 Intel Corporation
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <media/v4l2-ioctl.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-chip-ident.h>
+#include <linux/mutex.h>
+
+#define ADV7180_INPUT_CONTROL_REG                       0x00
+#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM    0x00
+#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM_PED 0x10
+#define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_J_SECAM     0x20
+#define ADV7180_INPUT_CONTROL_AD_PAL_N_NTSC_M_SECAM     0x30
+#define ADV7180_INPUT_CONTROL_NTSC_J                    0x40
+#define ADV7180_INPUT_CONTROL_NTSC_M                    0x50
+#define ADV7180_INPUT_CONTROL_PAL60                     0x60
+#define ADV7180_INPUT_CONTROL_NTSC_443                  0x70
+#define ADV7180_INPUT_CONTROL_PAL_BG                    0x80
+#define ADV7180_INPUT_CONTROL_PAL_N                     0x90
+#define ADV7180_INPUT_CONTROL_PAL_M                     0xa0
+#define ADV7180_INPUT_CONTROL_PAL_M_PED                 0xb0
+#define ADV7180_INPUT_CONTROL_PAL_COMB_N                0xc0
+#define ADV7180_INPUT_CONTROL_PAL_COMB_N_PED            0xd0
+#define ADV7180_INPUT_CONTROL_PAL_SECAM                 0xe0
+#define ADV7180_INPUT_CONTROL_PAL_SECAM_PED             0xf0
+#define ADV7180_INPUT_CONTROL_INSEL_MASK                0x0f
+
+#define ADV7180_EXTENDED_OUTPUT_CONTROL_REG             0x04
+#define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS         0xC5
+
+#define ADV7180_AUTODETECT_ENABLE_REG                   0x07
+#define ADV7180_AUTODETECT_DEFAULT                      0x7f
+/* Contrast */
+#define ADV7180_CON_REG         0x08    /*Unsigned */
+#define ADV7180_CON_MIN         0
+#define ADV7180_CON_DEF         128
+#define ADV7180_CON_MAX         255
+/* Brightness*/
+#define ADV7180_BRI_REG         0x0a    /*Signed */
+#define ADV7180_BRI_MIN         -128
+#define ADV7180_BRI_DEF         0
+#define ADV7180_BRI_MAX         127
+/* Hue */
+#define ADV7180_HUE_REG         0x0b    /*Signed, inverted */
+#define ADV7180_HUE_MIN         -127
+#define ADV7180_HUE_DEF         0
+#define ADV7180_HUE_MAX         128
+
+#define ADV7180_ADI_CTRL_REG                            0x0e
+#define ADV7180_ADI_CTRL_IRQ_SPACE                      0x20
+
+#define ADV7180_PWR_MAN_REG             0x0f
+#define ADV7180_PWR_MAN_ON              0x04
+#define ADV7180_PWR_MAN_OFF             0x24
+#define ADV7180_PWR_MAN_RES             0x80
+
+#define ADV7180_STATUS1_REG                             0x10
+#define ADV7180_STATUS1_IN_LOCK         0x01
+#define ADV7180_STATUS1_AUTOD_MASK      0x70
+#define ADV7180_STATUS1_AUTOD_NTSM_M_J  0x00
+#define ADV7180_STATUS1_AUTOD_NTSC_4_43 0x10
+#define ADV7180_STATUS1_AUTOD_PAL_M     0x20
+#define ADV7180_STATUS1_AUTOD_PAL_60    0x30
+#define ADV7180_STATUS1_AUTOD_PAL_B_G   0x40
+#define ADV7180_STATUS1_AUTOD_SECAM     0x50
+#define ADV7180_STATUS1_AUTOD_PAL_COMB  0x60
+#define ADV7180_STATUS1_AUTOD_SECAM_525 0x70
+
+#define ADV7180_IDENT_REG 0x11
+#define ADV7180_ID_7180 0x18
+
+#define ADV7180_ICONF1_ADI              0x40
+#define ADV7180_ICONF1_ACTIVE_LOW       0x01
+#define ADV7180_ICONF1_PSYNC_ONLY       0x10
+#define ADV7180_ICONF1_ACTIVE_TO_CLR    0xC0
+/* Saturation */
+#define ADV7180_SD_SAT_CB_REG   0xe3    /*Unsigned */
+#define ADV7180_SD_SAT_CR_REG   0xe4    /*Unsigned */
+#define ADV7180_SAT_MIN         0
+#define ADV7180_SAT_DEF         128
+#define ADV7180_SAT_MAX         255
+
+#define ADV7180_IRQ1_LOCK       0x01
+#define ADV7180_IRQ1_UNLOCK     0x02
+#define ADV7180_ISR1_ADI        0x42
+#define ADV7180_ICR1_ADI        0x43
+#define ADV7180_IMR1_ADI        0x44
+#define ADV7180_IMR2_ADI        0x48
+#define ADV7180_IRQ3_AD_CHANGE  0x08
+#define ADV7180_ISR3_ADI        0x4A
+#define ADV7180_ICR3_ADI        0x4B
+#define ADV7180_IMR3_ADI        0x4C
+#define ADV7180_IMR4_ADI        0x50
+
+#define ADV7180_NTSC_V_BIT_END_REG      0xE6
+#define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND     0x4F
+
+struct adv7180_state {
+        struct v4l2_ctrl_handler ctrl_hdl;
+        struct v4l2_subdev      sd;
+        struct work_struct      work;
+        struct mutex            mutex; /* mutual excl. when accessing chip */
+        int                     irq;
+        v4l2_std_id             curr_norm;
+        bool                    autodetect;
+        u8                      input;
+};
+#define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler,             \
+                                            struct adv7180_state,       \
+                                            ctrl_hdl)->sd)
+
+static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
+{
+        switch (status1 & ADV7180_STATUS1_AUTOD_MASK) {
+        case ADV7180_STATUS1_AUTOD_NTSM_M_J:
+                return V4L2_STD_NTSC;
+        case ADV7180_STATUS1_AUTOD_NTSC_4_43:
+                return V4L2_STD_NTSC_443;
+        case ADV7180_STATUS1_AUTOD_PAL_M:
+                return V4L2_STD_PAL_M;
+        case ADV7180_STATUS1_AUTOD_PAL_60:
+                return V4L2_STD_PAL_60;
+        case ADV7180_STATUS1_AUTOD_PAL_B_G:
+                return V4L2_STD_PAL;
+        case ADV7180_STATUS1_AUTOD_SECAM:
+                return V4L2_STD_SECAM;
+        case ADV7180_STATUS1_AUTOD_PAL_COMB:
+                return V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
+        case ADV7180_STATUS1_AUTOD_SECAM_525:
+                return V4L2_STD_SECAM;
+        default:
+                return V4L2_STD_UNKNOWN;
+        }
+}
+
+static int v4l2_std_to_adv7180(v4l2_std_id std)
+{
+        if (std == V4L2_STD_PAL_60)
+                return ADV7180_INPUT_CONTROL_PAL60;
+        if (std == V4L2_STD_NTSC_443)
+                return ADV7180_INPUT_CONTROL_NTSC_443;
+        if (std == V4L2_STD_PAL_N)
+                return ADV7180_INPUT_CONTROL_PAL_N;
+        if (std == V4L2_STD_PAL_M)
+                return ADV7180_INPUT_CONTROL_PAL_M;
+        if (std == V4L2_STD_PAL_Nc)
+                return ADV7180_INPUT_CONTROL_PAL_COMB_N;
+
+        if (std & V4L2_STD_PAL)
+                return ADV7180_INPUT_CONTROL_PAL_BG;
+        if (std & V4L2_STD_NTSC)
+                return ADV7180_INPUT_CONTROL_NTSC_M;
+        if (std & V4L2_STD_SECAM)
+                return ADV7180_INPUT_CONTROL_PAL_SECAM;
+
+        return -EINVAL;
+}
+
+static u32 adv7180_status_to_v4l2(u8 status1)
+{
+        if (!(status1 & ADV7180_STATUS1_IN_LOCK))
+                return V4L2_IN_ST_NO_SIGNAL;
+
+        return 0;
+}
+
+static int __adv7180_status(struct i2c_client *client, u32 *status,
+                            v4l2_std_id *std)
+{
+        int status1 = i2c_smbus_read_byte_data(client, ADV7180_STATUS1_REG);
+
+        if (status1 < 0)
+                return status1;
+
+        if (status)
+                *status = adv7180_status_to_v4l2(status1);
+        if (std)
+                *std = adv7180_std_to_v4l2(status1);
+
+        return 0;
+}
+
+static inline struct adv7180_state *to_state(struct v4l2_subdev *sd)
+{
+        return container_of(sd, struct adv7180_state, sd);
+}
+
+static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+        struct adv7180_state *state = to_state(sd);
+        int err = mutex_lock_interruptible(&state->mutex);
+        if (err)
+                return err;
+
+        /* when we are interrupt driven we know the state */
+        if (!state->autodetect || state->irq > 0)
+                *std = state->curr_norm;
+        else
+                err = __adv7180_status(v4l2_get_subdevdata(sd), NULL, std);
+
+        mutex_unlock(&state->mutex);
+        return err;
+}
+
+static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input,
+                             u32 output, u32 config)
+{
+        struct adv7180_state *state = to_state(sd);
+        int ret = mutex_lock_interruptible(&state->mutex);
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        if (ret)
+                return ret;
+
+        /* We cannot discriminate between LQFP and 40-pin LFCSP, so accept
+         * all inputs and let the card driver take care of validation
+         */
+        if ((input & ADV7180_INPUT_CONTROL_INSEL_MASK) != input)
+                goto out;
+
+        ret = i2c_smbus_read_byte_data(client, ADV7180_INPUT_CONTROL_REG);
+
+        if (ret < 0)
+                goto out;
+
+        ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK;
+        ret = i2c_smbus_write_byte_data(client,
+                                        ADV7180_INPUT_CONTROL_REG, ret | input);
+        state->input = input;
+out:
+        mutex_unlock(&state->mutex);
+        return ret;
+}
+
+static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+        struct adv7180_state *state = to_state(sd);
+        int ret = mutex_lock_interruptible(&state->mutex);
+        if (ret)
+                return ret;
+
+        ret = __adv7180_status(v4l2_get_subdevdata(sd), status, NULL);
+        mutex_unlock(&state->mutex);
+        return ret;
+}
+
+static int adv7180_g_chip_ident(struct v4l2_subdev *sd,
+                                struct v4l2_dbg_chip_ident *chip)
+{
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+        return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7180, 0);
+}
+
+static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+        struct adv7180_state *state = to_state(sd);
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+        int ret = mutex_lock_interruptible(&state->mutex);
+        if (ret)
+                return ret;
+
+        /* all standards -> autodetect */
+        if (std == V4L2_STD_ALL) {
+                ret =
+                    i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
+                                ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
+                                              | state->input);
+                if (ret < 0)
+                        goto out;
+
+                __adv7180_status(client, NULL, &state->curr_norm);
+                state->autodetect = true;
+        } else {
+                ret = v4l2_std_to_adv7180(std);
+                if (ret < 0)
+                        goto out;
+
+                ret = i2c_smbus_write_byte_data(client,
+                                                ADV7180_INPUT_CONTROL_REG,
+                                                ret | state->input);
+                if (ret < 0)
+                        goto out;
+
+                state->curr_norm = std;
+                state->autodetect = false;
+        }
+        ret = 0;
+out:
+        mutex_unlock(&state->mutex);
+        return ret;
+}
+
+static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+        struct v4l2_subdev *sd = to_adv7180_sd(ctrl);
+        struct adv7180_state *state = to_state(sd);
+        struct i2c_client *client = v4l2_get_subdevdata(sd);
+        int ret = mutex_lock_interruptible(&state->mutex);
+        int val;
+
+        if (ret)
+                return ret;
+        val = ctrl->val;
+        switch (ctrl->id) {
+        case V4L2_CID_BRIGHTNESS:
+                ret = i2c_smbus_write_byte_data(client, ADV7180_BRI_REG, val);
+                break;
+        case V4L2_CID_HUE:
+                /*Hue is inverted according to HSL chart */
+                ret = i2c_smbus_write_byte_data(client, ADV7180_HUE_REG, -val);
+                break;
+        case V4L2_CID_CONTRAST:
+                ret = i2c_smbus_write_byte_data(client, ADV7180_CON_REG, val);
+                break;
+        case V4L2_CID_SATURATION:
+                /*
+                 *This could be V4L2_CID_BLUE_BALANCE/V4L2_CID_RED_BALANCE
+                 *Let's not confuse the user, everybody understands saturation
+                 */
+                ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CB_REG,
+                                                val);
+                if (ret < 0)
+                        break;
+                ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CR_REG,
+                                                val);
+                break;
+        default:
+                ret = -EINVAL;
+        }
+
+        mutex_unlock(&state->mutex);
+        return ret;
+}
+
+static const struct v4l2_ctrl_ops adv7180_ctrl_ops = {
+        .s_ctrl = adv7180_s_ctrl,
+};
+
+static int adv7180_init_controls(struct adv7180_state *state)
+{
+        v4l2_ctrl_handler_init(&state->ctrl_hdl, 4);
+
+        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
+                          V4L2_CID_BRIGHTNESS, ADV7180_BRI_MIN,
+                          ADV7180_BRI_MAX, 1, ADV7180_BRI_DEF);
+        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
+                          V4L2_CID_CONTRAST, ADV7180_CON_MIN,
+                          ADV7180_CON_MAX, 1, ADV7180_CON_DEF);
+        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
+                          V4L2_CID_SATURATION, ADV7180_SAT_MIN,
+                          ADV7180_SAT_MAX, 1, ADV7180_SAT_DEF);
+        v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
+                          V4L2_CID_HUE, ADV7180_HUE_MIN,
+                          ADV7180_HUE_MAX, 1, ADV7180_HUE_DEF);
+        state->sd.ctrl_handler = &state->ctrl_hdl;
+        if (state->ctrl_hdl.error) {
+                int err = state->ctrl_hdl.error;
+
+                v4l2_ctrl_handler_free(&state->ctrl_hdl);
+                return err;
+        }
+        v4l2_ctrl_handler_setup(&state->ctrl_hdl);
+
+        return 0;
+}
+static void adv7180_exit_controls(struct adv7180_state *state)
+{
+        v4l2_ctrl_handler_free(&state->ctrl_hdl);
+}
+
+static const struct v4l2_subdev_video_ops adv7180_video_ops = {
+        .querystd = adv7180_querystd,
+        .g_input_status = adv7180_g_input_status,
+        .s_routing = adv7180_s_routing,
+};
+
+static const struct v4l2_subdev_core_ops adv7180_core_ops = {
+        .g_chip_ident = adv7180_g_chip_ident,
+        .s_std = adv7180_s_std,
+        .queryctrl = v4l2_subdev_queryctrl,
+        .g_ctrl = v4l2_subdev_g_ctrl,
+        .s_ctrl = v4l2_subdev_s_ctrl,
+};
+
+static const struct v4l2_subdev_ops adv7180_ops = {
+        .core = &adv7180_core_ops,
+        .video = &adv7180_video_ops,
+};
+
+static void adv7180_work(struct work_struct *work)
+{
+        struct adv7180_state *state = container_of(work, struct adv7180_state,
+                                                   work);
+        struct i2c_client *client = v4l2_get_subdevdata(&state->sd);
+        u8 isr3;
+
+        mutex_lock(&state->mutex);
+        i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
+                                  ADV7180_ADI_CTRL_IRQ_SPACE);
+        isr3 = i2c_smbus_read_byte_data(client, ADV7180_ISR3_ADI);
+        /* clear */
+        i2c_smbus_write_byte_data(client, ADV7180_ICR3_ADI, isr3);
+        i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG, 0);
+
+        if (isr3 & ADV7180_IRQ3_AD_CHANGE && state->autodetect)
+                __adv7180_status(client, NULL, &state->curr_norm);
+        mutex_unlock(&state->mutex);
+
+        enable_irq(state->irq);
+}
+
+static irqreturn_t adv7180_irq(int irq, void *devid)
+{
+        struct adv7180_state *state = devid;
+
+        schedule_work(&state->work);
+
+        disable_irq_nosync(state->irq);
+
+        return IRQ_HANDLED;
+}
+
+static int init_device(struct i2c_client *client, struct adv7180_state *state)
+{
+        int ret;
+
+        /* Initialize adv7180 */
+        /* Enable autodetection */
+        if (state->autodetect) {
+                ret =
+                    i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
+                                ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
+                                              | state->input);
+                if (ret < 0)
+                        return ret;
+
+                ret =
+                    i2c_smbus_write_byte_data(client,
+                                              ADV7180_AUTODETECT_ENABLE_REG,
+                                              ADV7180_AUTODETECT_DEFAULT);
+                if (ret < 0)
+                        return ret;
+        } else {
+                ret = v4l2_std_to_adv7180(state->curr_norm);
+                if (ret < 0)
+                        return ret;
+
+                ret =
+                    i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
+                                              ret | state->input);
+                if (ret < 0)
+                        return ret;
+
+        }
+        /* ITU-R BT.656-4 compatible */
+        ret = i2c_smbus_write_byte_data(client,
+                        ADV7180_EXTENDED_OUTPUT_CONTROL_REG,
+                        ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
+        if (ret < 0)
+                return ret;
+
+        /* Manually set V bit end position in NTSC mode */
+        ret = i2c_smbus_write_byte_data(client,
+                                        ADV7180_NTSC_V_BIT_END_REG,
+                                        ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
+        if (ret < 0)
+                return ret;
+
+        /* read current norm */
+        __adv7180_status(client, NULL, &state->curr_norm);
+
+        /* register for interrupts */
+        if (state->irq > 0) {
+                ret = request_irq(state->irq, adv7180_irq, 0, KBUILD_MODNAME,
+                                  state);
+                if (ret)
+                        return ret;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
+                                                ADV7180_ADI_CTRL_IRQ_SPACE);
+                if (ret < 0)
+                        return ret;
+
+                /* config the Interrupt pin to be active low */
+                ret = i2c_smbus_write_byte_data(client, ADV7180_ICONF1_ADI,
+                                                ADV7180_ICONF1_ACTIVE_LOW |
+                                                ADV7180_ICONF1_PSYNC_ONLY);
+                if (ret < 0)
+                        return ret;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_IMR1_ADI, 0);
+                if (ret < 0)
+                        return ret;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_IMR2_ADI, 0);
+                if (ret < 0)
+                        return ret;
+
+                /* enable AD change interrupts interrupts */
+                ret = i2c_smbus_write_byte_data(client, ADV7180_IMR3_ADI,
+                                                ADV7180_IRQ3_AD_CHANGE);
+                if (ret < 0)
+                        return ret;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_IMR4_ADI, 0);
+                if (ret < 0)
+                        return ret;
+
+                ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
+                                                0);
+                if (ret < 0)
+                        return ret;
+        }
+
+        return 0;
+}
+
+static __devinit int adv7180_probe(struct i2c_client *client,
+                                   const struct i2c_device_id *id)
+{
+        struct adv7180_state *state;
+        struct v4l2_subdev *sd;
+        int ret;
+
+        /* Check if the adapter supports the needed features */
+        if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+                return -EIO;
+
+        v4l_info(client, "chip found @ 0x%02x (%s)\n",
+                 client->addr, client->adapter->name);
+
+        state = kzalloc(sizeof(struct adv7180_state), GFP_KERNEL);
+        if (state == NULL) {
+                ret = -ENOMEM;
+                goto err;
+        }
+
+        state->irq = client->irq;
+        INIT_WORK(&state->work, adv7180_work);
+        mutex_init(&state->mutex);
+        state->autodetect = true;
+        state->input = 0;
+        sd = &state->sd;
+        v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
+
+        ret = adv7180_init_controls(state);
+        if (ret)
+                goto err_unreg_subdev;
+        ret = init_device(client, state);
+        if (ret)
+                goto err_free_ctrl;
+        return 0;
+
+err_free_ctrl:
+        adv7180_exit_controls(state);
+err_unreg_subdev:
+        mutex_destroy(&state->mutex);
+        v4l2_device_unregister_subdev(sd);
+        kfree(state);
+err:
+        printk(KERN_ERR KBUILD_MODNAME ": Failed to probe: %d\n", ret);
+        return ret;
+}
+
+static __devexit int adv7180_remove(struct i2c_client *client)
+{
+        struct v4l2_subdev *sd = i2c_get_clientdata(client);
+        struct adv7180_state *state = to_state(sd);
+
+        if (state->irq > 0) {
+                free_irq(client->irq, state);
+                if (cancel_work_sync(&state->work)) {
+                        /*
+                         * Work was pending, therefore we need to enable
+                         * IRQ here to balance the disable_irq() done in the
+                         * interrupt handler.
+                         */
+                        enable_irq(state->irq);
+                }
+        }
+
+        mutex_destroy(&state->mutex);
+        v4l2_device_unregister_subdev(sd);
+        kfree(to_state(sd));
+        return 0;
+}
+
+static const struct i2c_device_id adv7180_id[] = {
+        {KBUILD_MODNAME, 0},
+        {},
+};
+
+#ifdef CONFIG_PM
+static int adv7180_suspend(struct i2c_client *client, pm_message_t state)
+{
+        int ret;
+
+        ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
+                                        ADV7180_PWR_MAN_OFF);
+        if (ret < 0)
+                return ret;
+        return 0;
+}
+
+static int adv7180_resume(struct i2c_client *client)
+{
+        struct v4l2_subdev *sd = i2c_get_clientdata(client);
+        struct adv7180_state *state = to_state(sd);
+        int ret;
+
+        ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
+                                        ADV7180_PWR_MAN_ON);
+        if (ret < 0)
+                return ret;
+        ret = init_device(client, state);
+        if (ret < 0)
+                return ret;
+        return 0;
+}
+#endif
+
+MODULE_DEVICE_TABLE(i2c, adv7180_id);
+
+static struct i2c_driver adv7180_driver = {
+        .driver = {
+                   .owner = THIS_MODULE,
+                   .name = KBUILD_MODNAME,
+                   },
+        .probe = adv7180_probe,
+        .remove = __devexit_p(adv7180_remove),
+#ifdef CONFIG_PM
+        .suspend = adv7180_suspend,
+        .resume = adv7180_resume,
+#endif
+        .id_table = adv7180_id,
+};
+
+module_i2c_driver(adv7180_driver);
+
+MODULE_DESCRIPTION("Analog Devices ADV7180 video decoder driver");
+MODULE_AUTHOR("Mocean Laboratories");
+MODULE_LICENSE("GPL v2");