pca9468_charger: load ta_max_vol from device-tree
add interface to load ta_max_vol from dt.
Bug: 256787675
Bug: 224705785
Change-Id: Ib0387e2467979deb0cb645068e032e20c88ca2fb
Signed-off-by: Wasb Liu <[email protected]>
(cherry picked from commit 885eabeb5c460e2f617ca2f8e885dfda3fc700f5)
diff --git a/pca9468_charger.c b/pca9468_charger.c
index a3fc6f6..faec7ad 100644
--- a/pca9468_charger.c
+++ b/pca9468_charger.c
@@ -1528,6 +1528,8 @@
/* Check IIN_ADC < IIN_CC - 50mA */
if (iin < iin_cc_lb) {
+ const unsigned int ta_max_vol =
+ pca9468->pdata->ta_max_vol * pca9468->chg_mode;
unsigned int iin_apdo;
unsigned int val;
@@ -1546,8 +1548,7 @@
val = val * PD_MSG_TA_VOL_STEP; /* uV */
/* Set new TA_MAX_VOL */
- pca9468->ta_max_vol = min(val, (unsigned)PCA9468_TA_MAX_VOL *
- pca9468->chg_mode);
+ pca9468->ta_max_vol = min(val, ta_max_vol);
/* Increase TA voltage(40mV) */
pca9468->ta_vol = pca9468->ta_vol + PD_MSG_TA_VOL_STEP * 2;
@@ -1834,6 +1835,7 @@
/* recalculate ->ta_vol and ->ta_cur looking at demand (cc_max) */
static int pca9468_set_wired_dc(struct pca9468_charger *pca9468, int vbat)
{
+ const unsigned long ta_max_vol = pca9468->pdata->ta_max_vol * pca9468->chg_mode;
unsigned long val;
int iin_cc;
@@ -1848,8 +1850,7 @@
/* Adjust values with APDO resolution(20mV) */
val = val * 1000 / PD_MSG_TA_VOL_STEP;
val = val * PD_MSG_TA_VOL_STEP; /* uV */
- pca9468->ta_max_vol = min(val, (unsigned long)PCA9468_TA_MAX_VOL *
- pca9468->chg_mode);
+ pca9468->ta_max_vol = min(val, ta_max_vol);
/* MAX[8000mV * chg_mode, 2 * VBAT_ADC * chg_mode + 500 mV] */
pca9468->ta_vol = max(PCA9468_TA_MIN_VOL_PRESET * pca9468->chg_mode,
@@ -2850,7 +2851,7 @@
pca9468->ta_cur = PCA9468_TA_MIN_CUR;
ret = pca9468_set_ta_voltage_comp(pca9468);
- } else if (ta_max_vol >= PCA9468_TA_MAX_VOL_CP) {
+ } else if (ta_max_vol >= pca9468->pdata->ta_max_vol_cp) {
ret = pca9468_set_ta_current_comp(pca9468);
} else {
/* constant power mode */
@@ -3341,7 +3342,7 @@
pca9468->ta_max_vol, pca9468->ta_max_cur, pca9468->ta_max_pwr,
pca9468->iin_cc, pca9468->chg_mode);
} else {
- const unsigned int ta_max_vol = PCA9468_TA_MAX_VOL * pca9468->chg_mode;
+ const unsigned int ta_max_vol = pca9468->pdata->ta_max_vol * pca9468->chg_mode;
/*
* Get the APDO max for 2:1 mode.
@@ -4604,6 +4605,20 @@
pdata->iin_cfg = pdata->iin_cfg_max;
pr_info("%s: pca9468,iin_cfg is %u\n", __func__, pdata->iin_cfg);
+ /* TA max voltage limit */
+ ret = of_property_read_u32(np_pca9468, "pca9468,ta-max-vol",
+ &pdata->ta_max_vol);
+ if (ret) {
+ pr_warn("%s: pca9468,ta-max-vol is Empty\n", __func__);
+ pdata->ta_max_vol = PCA9468_TA_MAX_VOL;
+ }
+ ret = of_property_read_u32(np_pca9468, "pca9468,ta-max-vol-cp",
+ &pdata->ta_max_vol_cp);
+ if (ret) {
+ pr_warn("%s: pca9468,ta-max-vol-cp is Empty\n", __func__);
+ pdata->ta_max_vol_cp = pdata->ta_max_vol;
+ }
+
/* charging float voltage */
ret = of_property_read_u32(np_pca9468, "pca9468,float-voltage",
&pdata->v_float_dt);
diff --git a/pca9468_charger.h b/pca9468_charger.h
index 5633514..91d2db6 100644
--- a/pca9468_charger.h
+++ b/pca9468_charger.h
@@ -37,6 +37,9 @@
int iin_max_offset;
int iin_cc_comp_offset;
+ unsigned int ta_max_vol;
+ unsigned int ta_max_vol_cp;
+
/* irdrop */
unsigned int irdrop_limits[3];
int irdrop_limit_cnt;
