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charging: avoid vbus voltage increase to 12V

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If sometimes dm drop to 0V slowly, then vbus increase to 12V as
dp 0.6V dm 0.6V. So first drop dm to 0V and then drop dp to 0.6V.

Change-Id: I8db3b6273dd4be244b75513a0103a021719bf070
Signed-off-by: mahj8 <mahj8@motorola.com>
Reviewed-on: https://gerrit.mot.com/2109927
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Reviewed-by: Lu Chai <chailu1@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
mahj8 2021-11-08 19:07:50 +08:00 • committed by Haijian Ma
commit 73f818f4b5
1 changed files with 4 additions and 4 deletions
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12
drivers/power/sgm4154x_chg_mmi/sgm4154x_charger.c
View file

@ -325,15 +325,15 @@ static int sgm4154x_adjust_qc20_hvdcp_5v(struct sgm4154x_device *sgm)
int dp_val, dm_val;
/* dp 0.6v and dm 0v out 5V */
dp_val = 0x2<<3;
ret = regmap_update_bits(sgm->regmap, SGM4154x_CHRG_CTRL_d,
SGM4154x_DP_VSEL_MASK, dp_val); //dp 0.6v
if (ret)
return ret;
dm_val = 0x1<<1;
ret = regmap_update_bits(sgm->regmap, SGM4154x_CHRG_CTRL_d,
SGM4154x_DM_VSEL_MASK, dm_val); //dm 0v
if (ret)
return ret;
dp_val = 0x2<<3;
ret = regmap_update_bits(sgm->regmap, SGM4154x_CHRG_CTRL_d,
SGM4154x_DP_VSEL_MASK, dp_val); //dp 0.6v
return ret;
}