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

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>

diff --git a/drivers/amlogic/media/vout/vdac/vdac_dev.c b/drivers/amlogic/media/vout/vdac/vdac_dev.c
index b5b3533..6910911 100644 (file)
--- a/drivers/amlogic/media/vout/vdac/vdac_dev.c
+++ b/drivers/amlogic/media/vout/vdac/vdac_dev.c
@@ -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;
 }