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techpack: camera: lock cci core read and write operations

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Cosmin Tanislav 2021-09-04 23:45:25 +03:00 committed by Giovanni Ricca
parent 106abd4fa5
commit 22b0bc011e
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1 changed files with 17 additions and 0 deletions
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17
techpack/camera/drivers/cam_sensor_module/cam_cci/cam_cci_core.c
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@ -1887,12 +1887,20 @@ int32_t cam_cci_core_cfg(struct v4l2_subdev *sd,
* CCI version 1.2 does not support burst read
* due to the absence of the read threshold register
*/
mutex_lock(&cci_dev->init_mutex);
if (cci_dev->hw_version == CCI_VERSION_1_2_9) {
CAM_DBG(CAM_CCI, "cci-v1.2 no burst read");
rc = cam_cci_read_bytes_v_1_2(sd, cci_ctrl);
} else {
rc = cam_cci_read_bytes(sd, cci_ctrl);
}
if (rc < 0) {
CAM_ERR(CAM_CCI, "cam cci err %d , read, slav 0x%x on dev/master %d/%d",
rc, cci_ctrl->cci_info->sid << 1,
cci_ctrl->cci_info->cci_device,
cci_ctrl->cci_info->cci_i2c_master);
}
mutex_unlock(&cci_dev->init_mutex);
break;
case MSM_CCI_I2C_WRITE:
case MSM_CCI_I2C_WRITE_SEQ:
@ -1900,7 +1908,16 @@ int32_t cam_cci_core_cfg(struct v4l2_subdev *sd,
case MSM_CCI_I2C_WRITE_SYNC:
case MSM_CCI_I2C_WRITE_ASYNC:
case MSM_CCI_I2C_WRITE_SYNC_BLOCK:
mutex_lock(&cci_dev->init_mutex);
rc = cam_cci_write(sd, cci_ctrl);
if (rc < 0) {
CAM_ERR(CAM_CCI, "cam cci err %d , write type %d , slav 0x%x on dev/master %d/%d",
rc, cci_ctrl->cmd,
cci_ctrl->cci_info->sid << 1,
cci_ctrl->cci_info->cci_device,
cci_ctrl->cci_info->cci_i2c_master);
}
mutex_unlock(&cci_dev->init_mutex);
break;
case MSM_CCI_GPIO_WRITE:
break;