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charging: slow attach usb will not charging as 33w

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the phone slow attach usb sometimes, will not chrg as 33w
so we need avoid the vbus not present, sw set dpdm

Change-Id: I1d218bafafdecef911255d256b4e34dcde8aae76
Signed-off-by: huaqin85 <huaqin85@motorola.com>
Reviewed-on: https://gerrit.mot.com/2178754
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Reviewed-by: Wei Xu <xuwei9@lenovo.com>
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
huaqin85 2022-01-25 20:55:34 +08:00 • committed by Wei Xu
commit 2cbafe2a1d
1 changed files with 11 additions and 9 deletions
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20
drivers/power/mmi_discrete_turbo_charger/mmi_qc3p.c
View file

@ -42,7 +42,7 @@
#include <linux/kernel.h>
#include <linux/types.h>
#define USB_VBUS_IRQ_THRESHOLD 3800
bool mmi_qc3p_power_active(struct mmi_charger_manager *chg)
{
int ret, iio_val;
@ -108,15 +108,17 @@ int mmi_qc3p_set_vbus_voltage(struct mmi_charger_manager *chg, int target_mv)
}
mmi_chrg_info(chg, "curr_vbus= %d, target_vbus = %d, step = %d, impent_v:%d\n",curr_vbus_mv, target_mv, step,impendance_vubs_volt);
rc = mmi_charger_write_iio_chan(chg, SMB5_DP_DM, step);
if (rc < 0) {
mmi_chrg_err(chg, "Couldn't set dpdm pulse rc=%d\n", rc);
return -EINVAL;
}
if (chg->vbus_present && (curr_vbus_mv >= VBUS_IRQ_THRESHOLD)) {
rc = mmi_charger_write_iio_chan(chg, SMB5_DP_DM, step);
if (rc < 0) {
mmi_chrg_err(chg, "Couldn't set dpdm pulse rc=%d\n", rc);
return -EINVAL;
}
//need wait dp/dm send out
sleep_ms_wt = abs(step) * 10;
msleep(sleep_ms_wt);
//need wait dp/dm send out
sleep_ms_wt = abs(step) * 10;
msleep(sleep_ms_wt);
}
rc = mmi_get_vbus(chg->chrg_list[CP_MASTER],
&curr_vbus_mv);