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Message-Id: <0d7753ae1e908f38a650eb6565de65f9f7c56e28.1627992564.git.wangting11@xiaomi.com>
Date: Wed, 4 Aug 2021 19:01:58 +0800
From: Ting Wang <zxc52fgh@...il.com>
To: sre@...nel.org
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
gregkh@...uxfoundation.org, wangting11 <wangting11@...omi.com>
Subject: [PATCH v11 1/4] power: supply: core: add quick charge type property
From: wangting11 <wangting11@...omi.com>
Reports the kind of quick charge type based on
different adapter power.
Signed-off-by: wangting11 <wangting11@...omi.com>
---
Documentation/ABI/testing/sysfs-class-power | 21 ++++++
drivers/power/supply/power_supply_sysfs.c | 1 +
drivers/power/supply/qcom_smbb.c | 81 ++++++++++++++++++++-
include/linux/power_supply.h | 14 ++++
4 files changed, 116 insertions(+), 1 deletion(-)
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index ca830c6cd809..a49e1049cd9b 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -736,3 +736,24 @@ Description:
Access: Read
Valid values: 1-31
+
+What: /sys/class/power_supply/<supply_name>/quick_charge_type
+Date: Jul 2020
+Contact: Fei Jiang <jiangfei1@...omi.com>
+ Description:
+ Reports the kind of quick charge type based on different adapter power.
+ Different quick charge type represent different charging power.
+ QUICK_CHARGE_NORMAL : Charging Power <= 10W
+ QUICK_CHARGE_FAST : 10W < Charging Power <= 20W
+ QUICK_CHARGE_FLASH : 20W < Charging Power <= 30W
+ QUICK_CHARGE_TURBE : 30W < Charging Power <= 50W
+ QUICK_CHARGE_SUPER : Charging Power > 50W
+
+ Access: Read-Only
+ Valid values:
+ 0: QUICK_CHARGE_NORMAL,
+ 1: QUICK_CHARGE_FAST,
+ 2: QUICK_CHARGE_FLASH,
+ 3: QUICK_CHARGE_TURBE,
+ 4: QUICK_CHARGE_SUPER.
+
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index c3d7cbcd4fad..21f0ab748e5e 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -211,6 +211,7 @@ static struct power_supply_attr power_supply_attrs[] = {
POWER_SUPPLY_ATTR(MODEL_NAME),
POWER_SUPPLY_ATTR(MANUFACTURER),
POWER_SUPPLY_ATTR(SERIAL_NUMBER),
+ POWER_SUPPLY_ATTR(QUICK_CHARGE_TYPE),
};
static struct attribute *
diff --git a/drivers/power/supply/qcom_smbb.c b/drivers/power/supply/qcom_smbb.c
index c890e1cec720..21ddfa39f655 100644
--- a/drivers/power/supply/qcom_smbb.c
+++ b/drivers/power/supply/qcom_smbb.c
@@ -90,6 +90,12 @@
#define STATUS_CHG_FAST BIT(7) /* Fast charging */
#define STATUS_CHG_GONE BIT(8) /* No charger is connected */
+#define IMAX_NORMAL 2000000
+#define IMAX_FAST 4000000
+#define IMAX_FLASH 6000000
+#define IMAX_TURBE 10000000
+#define IMAX_SUPER 12000000
+
enum smbb_attr {
ATTR_BAT_ISAFE,
ATTR_BAT_IMAX,
@@ -111,6 +117,7 @@ struct smbb_charger {
bool dc_disabled;
bool jeita_ext_temp;
+ bool pd_verifed;
unsigned long status;
struct mutex statlock;
@@ -485,6 +492,58 @@ static const struct smbb_irq {
{ "dc-valid", smbb_dc_valid_handler },
};
+struct quick_charge {
+ enum power_supply_type adap_type;
+ enum power_supply_quick_charge_type adap_cap;
+};
+
+static struct quick_charge adapter_cap[10] = {
+ { POWER_SUPPLY_TYPE_USB, QUICK_CHARGE_NORMAL },
+ { POWER_SUPPLY_TYPE_USB_DCP, QUICK_CHARGE_NORMAL },
+ { POWER_SUPPLY_TYPE_USB_CDP, QUICK_CHARGE_NORMAL },
+ { POWER_SUPPLY_TYPE_USB_ACA, QUICK_CHARGE_NORMAL },
+ { POWER_SUPPLY_TYPE_USB_FLOAT, QUICK_CHARGE_NORMAL },
+ { POWER_SUPPLY_TYPE_USB_PD, QUICK_CHARGE_FAST },
+ { POWER_SUPPLY_TYPE_USB_HVDCP, QUICK_CHARGE_FAST },
+ { POWER_SUPPLY_TYPE_USB_HVDCP_3, QUICK_CHARGE_FAST },
+ { POWER_SUPPLY_TYPE_USB_HVDCP_3P5, QUICK_CHARGE_FAST },
+ {0, 0},
+};
+
+static int get_quick_charge_type(struct smbb_charger *chg)
+{
+ union power_supply_propval prop = {0, };
+ int charger_type, rc;
+ int i = 0;
+
+ rc = power_supply_get_property(chg->bat_psy,
+ POWER_SUPPLY_PROP_STATUS, &prop);
+ if (rc < 0)
+ return rc;
+ if (prop.intval == POWER_SUPPLY_STATUS_DISCHARGING)
+ return 0;
+
+ rc = power_supply_get_property(chg->usb_psy,
+ POWER_SUPPLY_PROP_USB_TYPE, &prop);
+ if (rc < 0)
+ return rc;
+ charger_type = prop.intval;
+
+ /* when pd adapter is authenticated successfully */
+ if ((charger_type == POWER_SUPPLY_TYPE_USB_PD) && chg->pd_verifed) {
+ return QUICK_CHARGE_TURBE;
+ }
+
+ while (adapter_cap[i].adap_type != 0) {
+ if (charger_type == adapter_cap[i].adap_type) {
+ return adapter_cap[i].adap_cap;
+ }
+ i++;
+ }
+
+ return 0;
+}
+
static int smbb_usbin_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
@@ -505,6 +564,9 @@ static int smbb_usbin_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX:
val->intval = 2500000;
break;
+ case POWER_SUPPLY_PROP_QUICK_CHARGE_TYPE:
+ val->intval = get_quick_charge_type(chg);
+ break;
default:
rc = -EINVAL;
break;
@@ -662,11 +724,27 @@ static int smbb_battery_set_property(struct power_supply *psy,
const union power_supply_propval *val)
{
struct smbb_charger *chg = power_supply_get_drvdata(psy);
+ int charger_type, bat_imax;
int rc;
switch (psp) {
case POWER_SUPPLY_PROP_CURRENT_MAX:
- rc = smbb_charger_attr_write(chg, ATTR_BAT_IMAX, val->intval);
+ charger_type = get_quick_charge_type(chg);
+ if (charger_type == QUICK_CHARGE_NORMAL)
+ bat_imax = IMAX_NORMAL;
+ else if (charger_type == QUICK_CHARGE_FAST)
+ bat_imax = IMAX_FAST;
+ else if (charger_type == QUICK_CHARGE_FLASH)
+ bat_imax = IMAX_FLASH;
+ else if (charger_type == QUICK_CHARGE_TURBE)
+ bat_imax = IMAX_TURBE;
+ else if (charger_type == QUICK_CHARGE_SUPER)
+ bat_imax = IMAX_SUPER;
+ else
+ bat_imax = IMAX_NORMAL;
+
+ bat_imax = min(val->intval, bat_imax);
+ rc = smbb_charger_attr_write(chg, ATTR_BAT_IMAX, bat_imax);
break;
case POWER_SUPPLY_PROP_VOLTAGE_MAX:
rc = smbb_charger_attr_write(chg, ATTR_BAT_VMAX, val->intval);
@@ -695,6 +773,7 @@ static enum power_supply_property smbb_charger_properties[] = {
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT,
POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX,
+ POWER_SUPPLY_PROP_QUICK_CHARGE_TYPE,
};
static enum power_supply_property smbb_battery_properties[] = {
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index be203985ecdd..3dc3e53c5df1 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -171,6 +171,7 @@ enum power_supply_property {
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
POWER_SUPPLY_PROP_SERIAL_NUMBER,
+ POWER_SUPPLY_PROP_QUICK_CHARGE_TYPE,
};
enum power_supply_type {
@@ -187,6 +188,10 @@ enum power_supply_type {
POWER_SUPPLY_TYPE_USB_PD_DRP, /* PD Dual Role Port */
POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
POWER_SUPPLY_TYPE_WIRELESS, /* Wireless */
+ POWER_SUPPLY_TYPE_USB_HVDCP, /* High Voltage DCP */
+ POWER_SUPPLY_TYPE_USB_HVDCP_3, /* Efficient High Voltage DCP */
+ POWER_SUPPLY_TYPE_USB_HVDCP_3P5, /* Efficient High Voltage DCP */
+ POWER_SUPPLY_TYPE_USB_FLOAT, /* Floating charger */
};
enum power_supply_usb_type {
@@ -202,6 +207,15 @@ enum power_supply_usb_type {
POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
};
+enum power_supply_quick_charge_type {
+ QUICK_CHARGE_NORMAL = 0, /* Charging Power <= 10W */
+ QUICK_CHARGE_FAST, /* 10W < Charging Power <= 20W */
+ QUICK_CHARGE_FLASH, /* 20W < Charging Power <= 30W */
+ QUICK_CHARGE_TURBE, /* 30W < Charging Power <= 50W */
+ QUICK_CHARGE_SUPER, /* Charging Power > 50W */
+ QUICK_CHARGE_MAX,
+};
+
enum power_supply_notifier_events {
PSY_EVENT_PROP_CHANGED,
};
--
2.17.1
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