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vdac: close vdac bandgap for suspend power [1/1]

Browse Source 
PD#SWPL-2643

Problem:
cvbsout electric current 1.97mA when suspend

Solution:
close bandgap when suspend

Verify:
verified by x301

Change-Id: I6b87ecd42b0f7876fea18c400f19ddc2d4a7665e
Signed-off-by: Nian Jing <nian.jing@amlogic.com>
This commit is contained in:
Nian Jing
2018-11-29 19:16:13 +08:00
committed by Jianxin Pan
parent 8a8b821423
commit f314273d3d
1 changed files with 5 additions and 0 deletions
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5
drivers/amlogic/media/vout/vdac/vdac_dev.c
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@@ -703,12 +703,17 @@ static int amvdac_drv_suspend(struct platform_device *pdev,
{
if (s_vdac_data->cpu_id == VDAC_CPU_TXL)
vdac_hiu_reg_write(HHI_VDAC_CNTL0, 0);
else if (s_vdac_data->cpu_id == VDAC_CPU_TL1)
vdac_hiu_reg_setb(HHI_VDAC_CNTL1_G12A, 1, 7, 1);
pr_info("%s: suspend module\n", __func__);
return 0;
}
static int amvdac_drv_resume(struct platform_device *pdev)
{
/*0xbc[7] for bandgap enable: 0:enable,1:disable*/
if (s_vdac_data->cpu_id == VDAC_CPU_TL1)
vdac_hiu_reg_setb(HHI_VDAC_CNTL1_G12A, 0, 7, 1);
pr_info("%s: resume module\n", __func__);
return 0;
}