diff options
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c b/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c index d4c4414e186f..b3be89e21666 100644 --- a/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c +++ b/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c @@ -213,7 +213,8 @@ static int vcm_dw_i2c_write(struct i2c_client *client, u16 data) return ret == num_msg ? 0 : -EIO; } -/* Theory: per datasheet, the two VCMs both allow for a 2-byte read. +/* + * Theory: per datasheet, the two VCMs both allow for a 2-byte read. * The DW9714 doesn't actually specify what this does (it has a * two-byte write-only protocol, but specifies the read sequence as * legal), but it returns the same data (zeroes) always, after an @@ -224,7 +225,8 @@ static int vcm_dw_i2c_write(struct i2c_client *client, u16 data) * these) in AD5823 are not pairwise repetitions of the same 16 bit * word. So all we have to do is sequentially read two bytes at a * time and see if we detect a difference in any of the first four - * pairs. */ + * pairs. + */ static int vcm_detect(struct i2c_client *client) { int i, ret; @@ -238,8 +240,10 @@ static int vcm_detect(struct i2c_client *client) msg.buf = (u8 *)&data; ret = i2c_transfer(client->adapter, &msg, 1); - /* DW9714 always fails the first read and returns - * zeroes for subsequent ones */ + /* + * DW9714 always fails the first read and returns + * zeroes for subsequent ones + */ if (i == 0 && ret == -EREMOTEIO) { data0 = 0; continue; @@ -533,9 +537,11 @@ static long __ov5693_set_exposure(struct v4l2_subdev *sd, int coarse_itg, hts = ov5693_res[dev->fmt_idx].pixels_per_line; vts = ov5693_res[dev->fmt_idx].lines_per_frame; - /*If coarse_itg is larger than 1<<15, can not write to reg directly. - The way is to write coarse_itg/2 to the reg, meanwhile write 2*hts - to the reg. */ + /* + * If coarse_itg is larger than 1<<15, can not write to reg directly. + * The way is to write coarse_itg/2 to the reg, meanwhile write 2*hts + * to the reg. + */ if (coarse_itg > (1 << 15)) { hts = hts * 2; coarse_itg = (int)coarse_itg / 2; @@ -880,8 +886,10 @@ static long ov5693_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) return 0; } -/* This returns the exposure time being used. This should only be used - for filling in EXIF data, not for actual image processing. */ +/* + * This returns the exposure time being used. This should only be used + * for filling in EXIF data, not for actual image processing. + */ static int ov5693_q_exposure(struct v4l2_subdev *sd, s32 *value) { struct i2c_client *client = v4l2_get_subdevdata(sd); @@ -1298,11 +1306,13 @@ static int power_ctrl(struct v4l2_subdev *sd, bool flag) if (!dev || !dev->platform_data) return -ENODEV; - /* This driver assumes "internal DVDD, PWDNB tied to DOVDD". + /* + * This driver assumes "internal DVDD, PWDNB tied to DOVDD". * In this set up only gpio0 (XSHUTDN) should be available * but in some products (for example ECS) gpio1 (PWDNB) is * also available. If gpio1 is available we emulate it being - * tied to DOVDD here. */ + * tied to DOVDD here. + */ if (flag) { ret = dev->platform_data->v2p8_ctrl(sd, 1); dev->platform_data->gpio1_ctrl(sd, 1); @@ -1941,10 +1951,12 @@ static int ov5693_probe(struct i2c_client *client) struct acpi_device *adev; unsigned int i; - /* Firmware workaround: Some modules use a "secondary default" + /* + * Firmware workaround: Some modules use a "secondary default" * address of 0x10 which doesn't appear on schematics, and * some BIOS versions haven't gotten the memo. Work around - * via config. */ + * via config. + */ i2c = gmin_get_var_int(&client->dev, "I2CAddr", -1); if (i2c != -1) { dev_info(&client->dev, |