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| author | Erik Andr?n <erik.andren@gmail.com> | 2009-01-04 07:28:42 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-04-06 21:44:47 -0300 |
| commit | 5196d7c63197b03b29985e8bd9bfa4425b253673 (patch) | |
| tree | ad0ac597e9c81ac7d0199b006a3de9e43b2ecf89 /drivers/media | |
| parent | 7460f524980d1d7c39f05b7e95d6d2fba072fd8a (diff) | |
| download | linux-5196d7c63197b03b29985e8bd9bfa4425b253673.tar.bz2 | |
V4L/DVB (11426): gspca - m5602: Don't touch hflip/vflip register on Read/Modify/Write
Touching the hflip/vflip register while doing the read/modify/write corrupts the image. Just read from the sensor ctrl cache instead and all is good.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/gspca/m5602/m5602_ov9650.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_ov9650.c b/drivers/media/video/gspca/m5602/m5602_ov9650.c index 9c79a516db61..7967a651c4db 100644 --- a/drivers/media/video/gspca/m5602/m5602_ov9650.c +++ b/drivers/media/video/gspca/m5602/m5602_ov9650.c @@ -662,12 +662,7 @@ int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set horizontal flip to %d", val); sensor_settings[HFLIP_IDX] = val; - err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1); - if (err < 0) - return err; - - i2c_data = ((i2c_data & 0xdf) | ((val & 0x01) << 5)); - + i2c_data = ((val & 0x01) << 5) | (sensor_settings[VFLIP_IDX] << 4); err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1); return err; @@ -692,19 +687,14 @@ int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val) s32 *sensor_settings = sd->sensor_priv; PDEBUG(D_V4L2, "Set vertical flip to %d", val); - sensor_settings[VFLIP_IDX] = val; - err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1); - if (err < 0) - return err; - - i2c_data = ((i2c_data & 0xef) | ((val & 0x01) << 4)); + i2c_data = ((val & 0x01) << 4) | (sensor_settings[VFLIP_IDX] << 5); err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1); - if (err < 0) return err; + /* When vflip is toggled we need to readjust the bridge hsync/vsync */ if (gspca_dev->streaming) err = ov9650_start(sd); |