From b22da3d8526a935aa31e086e63f60ff3246cb61c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 07:24:11 +0000
Subject: [PATCH] add stmac read mac form eeprom
---
kernel/drivers/power/supply/max8998_charger.c | 51 ++++++++++++++++++++++++++++-----------------------
1 files changed, 28 insertions(+), 23 deletions(-)
diff --git a/kernel/drivers/power/supply/max8998_charger.c b/kernel/drivers/power/supply/max8998_charger.c
index aa65e6c..c26023b 100644
--- a/kernel/drivers/power/supply/max8998_charger.c
+++ b/kernel/drivers/power/supply/max8998_charger.c
@@ -1,23 +1,9 @@
-/*
- * max8998_charger.c - Power supply consumer driver for the Maxim 8998/LP3974
- *
- * Copyright (C) 2009-2010 Samsung Electronics
- * MyungJoo Ham <myungjoo.ham@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// max8998_charger.c - Power supply consumer driver for the Maxim 8998/LP3974
+//
+// Copyright (C) 2009-2010 Samsung Electronics
+// MyungJoo Ham <myungjoo.ham@samsung.com>
#include <linux/err.h>
#include <linux/module.h>
@@ -37,6 +23,7 @@
static enum power_supply_property max8998_battery_props[] = {
POWER_SUPPLY_PROP_PRESENT, /* the presence of battery */
POWER_SUPPLY_PROP_ONLINE, /* charger is active or not */
+ POWER_SUPPLY_PROP_STATUS, /* charger is charging/discharging/full */
};
/* Note that the charger control is done by a current regulator "CHARGER" */
@@ -63,10 +50,28 @@
ret = max8998_read_reg(i2c, MAX8998_REG_STATUS2, ®);
if (ret)
return ret;
- if (reg & (1 << 3))
- val->intval = 0;
- else
+
+ if (reg & (1 << 5))
val->intval = 1;
+ else
+ val->intval = 0;
+
+ break;
+ case POWER_SUPPLY_PROP_STATUS:
+ ret = max8998_read_reg(i2c, MAX8998_REG_STATUS2, ®);
+ if (ret)
+ return ret;
+
+ if (!(reg & (1 << 5))) {
+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+ } else {
+ if (reg & (1 << 6))
+ val->intval = POWER_SUPPLY_STATUS_FULL;
+ else if (reg & (1 << 3))
+ val->intval = POWER_SUPPLY_STATUS_CHARGING;
+ else
+ val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ }
break;
default:
return -EINVAL;
--
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