From: Nian Jing <nian.jing@amlogic.com>
Date: Thu, 29 Nov 2018 11:16:13 +0000 (+0800)
Subject: vdac: close vdac bandgap for suspend power [1/1]
X-Git-Tag: hardkernel-4.9.236-104~2107
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f314273d3d971c63aa64ef302e85e8caaa4943e9;p=platform%2Fkernel%2Flinux-amlogic.git

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
--- 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;
 }