int vpe_enable(uint32_t clk_rate)
{
int rc = 0;
unsigned long flags = 0;
/* don't change the order of clock and irq.*/
CDBG("%s: enable_clock rate %u\n", __func__, clk_rate);
spin_lock_irqsave(&vpe_ctrl->ops_lock, flags);
if (vpe_ctrl->state != VPE_STATE_IDLE) {
CDBG("%s: VPE already enabled", __func__);
spin_unlock_irqrestore(&vpe_ctrl->ops_lock, flags);
return 0;
}
vpe_ctrl->state = VPE_STATE_INIT;
spin_unlock_irqrestore(&vpe_ctrl->ops_lock, flags);
rc = msm_camio_vpe_clk_enable(clk_rate);
if (rc < 0) {
pr_err("%s: msm_camio_vpe_clk_enable failed", __func__);
vpe_ctrl->state = VPE_STATE_IDLE;
return rc;
}
CDBG("%s: enable_irq\n", __func__);
vpe_enable_irq();
/* initialize the data structure - lock, queue etc. */
spin_lock_init(&vpe_ctrl->tasklet_lock);
INIT_LIST_HEAD(&vpe_ctrl->tasklet_q);
return rc;
}
int msm_vpe_open(void)
{
int rc = 0;
CDBG("[CAM] %s: In \n", __func__);
vpe_ctrl = kzalloc(sizeof(struct vpe_ctrl_type), GFP_KERNEL);
if (!vpe_ctrl) {
pr_err("[CAM] %s: no memory!\n", __func__);
return -ENOMEM;
}
/* don't change the order of clock and irq.*/
CDBG("[CAM] %s: enable_clock \n", __func__);
rc = msm_camio_vpe_clk_enable();
CDBG("[CAM] %s: enable_irq \n", __func__);
vpe_enable_irq();
/* initialize the data structure - lock, queue etc. */
spin_lock_init(&vpe_ctrl->tasklet_lock);
INIT_LIST_HEAD(&vpe_ctrl->tasklet_q);
CDBG("[CAM] %s: Out \n", __func__);
return rc;
}