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deinterlace: fix suspend di cause undefined instruction [1/1]

Browse Source 
PD#SWPL-14418

Problem:
DI issue causes platform crash to restart
when do DTV 2s channel switch+15s suspend

Solution:
use active_flg to protect tasklet_schedule

Verify:
tl1

Change-Id: I91028a039d8b1799b131a953bef4877f70a2f697
Signed-off-by: Jihong Sui <jihong.sui@amlogic.com>
This commit is contained in:
Jihong Sui
2019-09-20 16:03:44 +08:00
committed by Tao Zeng
parent a7884835b7
commit a0bbd9d53c
1 changed files with 10 additions and 1 deletions
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11
drivers/amlogic/media/deinterlace/deinterlace.c
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@@ -320,7 +320,8 @@ void trigger_pre_di_process(unsigned char idx)
{
if (di_sema_init_flag == 0)
return;
if (!active_flag)
return;
log_buffer_state((idx == 'i') ? "irq" : ((idx == 'p') ?
"put" : ((idx == 'r') ? "rdy" : "oth")));
@@ -8781,9 +8782,11 @@ static void di_clear_for_suspend(struct di_dev_s *di_devp)
di_pre_stru.cma_alloc_done = 0;
}
#endif
#ifdef DI_KEEP_HIS
hrtimer_cancel(&di_pre_hrtimer);
tasklet_kill(&di_pre_tasklet); //ary.sui
tasklet_disable(&di_pre_tasklet);
#endif
pr_info("%s end\n", __func__);
}
static int save_init_flag;
@@ -8797,10 +8800,16 @@ static int di_suspend(struct device *dev)
di_devp->flags |= DI_SUSPEND_FLAG;
di_clear_for_suspend(di_devp);//add
active_flag = 0;
/* fix suspend/resume crash problem */
save_init_flag = init_flag;
init_flag = 0;
hrtimer_cancel(&di_pre_hrtimer);
tasklet_kill(&di_pre_tasklet);
tasklet_disable(&di_pre_tasklet);
#if 0 /*2019-01-18*/
if (di_pre_stru.di_inp_buf) {
if (vframe_in[di_pre_stru.di_inp_buf->index]) {