Some sensors only allow 8-bit access, so use safe 8-bit access before the sensor has been identified.
Signed-off-by: Sakari Ailus <[email protected]> --- drivers/media/video/smiapp/smiapp-core.c | 63 ++++++++++++++++-------------- 1 files changed, 34 insertions(+), 29 deletions(-) diff --git a/drivers/media/video/smiapp/smiapp-core.c b/drivers/media/video/smiapp/smiapp-core.c index de5c947..3bf086f 100644 --- a/drivers/media/video/smiapp/smiapp-core.c +++ b/drivers/media/video/smiapp/smiapp-core.c @@ -2197,51 +2197,56 @@ static int smiapp_identify_module(struct v4l2_subdev *subdev) minfo->name = SMIAPP_NAME; /* Module info */ - rval = smiapp_read(sensor, SMIAPP_REG_U8_MANUFACTURER_ID, - &minfo->manufacturer_id); + rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_MANUFACTURER_ID, + &minfo->manufacturer_id); if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U16_MODEL_ID, - &minfo->model_id); + rval = smiapp_read_8only(sensor, SMIAPP_REG_U16_MODEL_ID, + &minfo->model_id); if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U8_REVISION_NUMBER_MAJOR, - &minfo->revision_number_major); + rval = smiapp_read_8only(sensor, + SMIAPP_REG_U8_REVISION_NUMBER_MAJOR, + &minfo->revision_number_major); if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U8_REVISION_NUMBER_MINOR, - &minfo->revision_number_minor); + rval = smiapp_read_8only(sensor, + SMIAPP_REG_U8_REVISION_NUMBER_MINOR, + &minfo->revision_number_minor); if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U8_MODULE_DATE_YEAR, - &minfo->module_year); + rval = smiapp_read_8only(sensor, + SMIAPP_REG_U8_MODULE_DATE_YEAR, + &minfo->module_year); if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U8_MODULE_DATE_MONTH, - &minfo->module_month); + rval = smiapp_read_8only(sensor, + SMIAPP_REG_U8_MODULE_DATE_MONTH, + &minfo->module_month); if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U8_MODULE_DATE_DAY, - &minfo->module_day); + rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_MODULE_DATE_DAY, + &minfo->module_day); /* Sensor info */ if (!rval) - rval = smiapp_read(sensor, - SMIAPP_REG_U8_SENSOR_MANUFACTURER_ID, - &minfo->sensor_manufacturer_id); + rval = smiapp_read_8only(sensor, + SMIAPP_REG_U8_SENSOR_MANUFACTURER_ID, + &minfo->sensor_manufacturer_id); if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U16_SENSOR_MODEL_ID, - &minfo->sensor_model_id); + rval = smiapp_read_8only(sensor, + SMIAPP_REG_U16_SENSOR_MODEL_ID, + &minfo->sensor_model_id); if (!rval) - rval = smiapp_read(sensor, - SMIAPP_REG_U8_SENSOR_REVISION_NUMBER, - &minfo->sensor_revision_number); + rval = smiapp_read_8only(sensor, + SMIAPP_REG_U8_SENSOR_REVISION_NUMBER, + &minfo->sensor_revision_number); if (!rval) - rval = smiapp_read(sensor, - SMIAPP_REG_U8_SENSOR_FIRMWARE_VERSION, - &minfo->sensor_firmware_version); + rval = smiapp_read_8only(sensor, + SMIAPP_REG_U8_SENSOR_FIRMWARE_VERSION, + &minfo->sensor_firmware_version); /* SMIA */ if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U8_SMIA_VERSION, - &minfo->smia_version); + rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_SMIA_VERSION, + &minfo->smia_version); if (!rval) - rval = smiapp_read(sensor, SMIAPP_REG_U8_SMIAPP_VERSION, - &minfo->smiapp_version); + rval = smiapp_read_8only(sensor, SMIAPP_REG_U8_SMIAPP_VERSION, + &minfo->smiapp_version); if (rval) { dev_err(&client->dev, "sensor detection failed\n"); -- 1.7.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
