mfd/power: ab8500: Push algorithm to power supply code

The charging algorithm header is only used locally in the
power supply subsystem so push this down into
drivers/power/supply and rename from the confusing
"ux500_chargalg.h" to "ab8500-chargalg.h" for clarity:
it is only used with the AB8500.

This is another remnant of non-DT code needing to pass
data from boardfiles, which we don't do anymore.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

4 files changed, 54 insertions, 3 deletions

diff --git a/drivers/power/supply/ab8500-chargalg.h b/drivers/power/supply/ab8500-chargalg.h
new file mode 100644
index 000000000000..94a6f9068bc5
--- /dev/null
+++ b/drivers/power/supply/ab8500-chargalg.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) ST-Ericsson SA 2012
+ * Author: Johan Gardsmark <johan.gardsmark@stericsson.com> for ST-Ericsson.
+ */
+
+#ifndef _AB8500_CHARGALG_H_
+#define _AB8500_CHARGALG_H_
+
+#include <linux/power_supply.h>
+
+/*
+ * Valid only for supplies of type:
+ * - POWER_SUPPLY_TYPE_MAINS,
+ * - POWER_SUPPLY_TYPE_USB,
+ * because only them store as drv_data pointer to struct ux500_charger.
+ */
+#define psy_to_ux500_charger(x) power_supply_get_drvdata(psy)
+
+/* Forward declaration */
+struct ux500_charger;
+
+struct ux500_charger_ops {
+	int (*enable) (struct ux500_charger *, int, int, int);
+	int (*check_enable) (struct ux500_charger *, int, int);
+	int (*kick_wd) (struct ux500_charger *);
+	int (*update_curr) (struct ux500_charger *, int);
+};
+
+/**
+ * struct ux500_charger - power supply ux500 charger sub class
+ * @psy			power supply base class
+ * @ops			ux500 charger operations
+ * @max_out_volt	maximum output charger voltage in mV
+ * @max_out_curr	maximum output charger current in mA
+ * @enabled		indicates if this charger is used or not
+ * @external		external charger unit (pm2xxx)
+ */
+struct ux500_charger {
+	struct power_supply *psy;
+	struct ux500_charger_ops ops;
+	int max_out_volt;
+	int max_out_curr;
+	int wdt_refresh;
+	bool enabled;
+	bool external;
+};
+
+extern struct blocking_notifier_head charger_notifier_list;
+
+#endif /* _AB8500_CHARGALG_H_ */
diff --git a/drivers/power/supply/ab8500_charger.c b/drivers/power/supply/ab8500_charger.c
index 50989a5ec95c..a9be10eb2c22 100644
--- a/drivers/power/supply/ab8500_charger.c
+++ b/drivers/power/supply/ab8500_charger.c
@@ -28,12 +28,12 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/abx500/ab8500.h>
 #include <linux/mfd/abx500.h>
-#include <linux/mfd/abx500/ux500_chargalg.h>
 #include <linux/usb/otg.h>
 #include <linux/mutex.h>
 #include <linux/iio/consumer.h>
 
 #include "ab8500-bm.h"
+#include "ab8500-chargalg.h"
 
 /* Charger constants */
 #define NO_PW_CONN			0
diff --git a/drivers/power/supply/abx500_chargalg.c b/drivers/power/supply/abx500_chargalg.c
index 5b28d58041b4..f5b792243727 100644
--- a/drivers/power/supply/abx500_chargalg.c
+++ b/drivers/power/supply/abx500_chargalg.c
@@ -28,10 +28,10 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/abx500.h>
 #include <linux/mfd/abx500/ab8500.h>
-#include <linux/mfd/abx500/ux500_chargalg.h>
 #include <linux/notifier.h>
 
 #include "ab8500-bm.h"
+#include "ab8500-chargalg.h"
 
 /* Watchdog kick interval */
 #define CHG_WD_INTERVAL			(6 * HZ)
diff --git a/drivers/power/supply/pm2301_charger.c b/drivers/power/supply/pm2301_charger.c
index 5aeff75db33b..d53e0c37c059 100644
--- a/drivers/power/supply/pm2301_charger.c
+++ b/drivers/power/supply/pm2301_charger.c
@@ -18,13 +18,13 @@
 #include <linux/i2c.h>
 #include <linux/workqueue.h>
 #include <linux/mfd/abx500/ab8500.h>
-#include <linux/mfd/abx500/ux500_chargalg.h>
 #include <linux/pm2301_charger.h>
 #include <linux/gpio.h>
 #include <linux/pm_runtime.h>
 #include <linux/pm.h>
 
 #include "ab8500-bm.h"
+#include "ab8500-chargalg.h"
 #include "pm2301_charger.h"
 
 #define to_pm2xxx_charger_ac_device_info(x) container_of((x), \