power: remove pda_power supply driver

This driver was used for a couple of Intel PXA and Samsung S3C24xx
based PDAs, but all of those are now removed from the kernel, so
the driver itself is no longer useful.

Cc: Anton Vorontsov <cbou@mail.ru>
Cc: linux-pm@vger.kernel.org
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/power/power_supply_class.rst

@@ -40,8 +40,8 @@ kind of power supply, and can process/present them to a user in consistent
 manner. Results for different power supplies and machines are also directly
 comparable.
 
-See drivers/power/supply/ds2760_battery.c and drivers/power/supply/pda_power.c
-for the example how to declare and handle attributes.
+See drivers/power/supply/ds2760_battery.c for the example how to declare
+and handle attributes.
 
 
 Units

arch/arm/mach-tegra/tegra.c

@@ -19,7 +19,6 @@
 #include <linux/of_fdt.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
-#include <linux/pda_power.h>
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
 #include <linux/slab.h>

drivers/power/supply/Kconfig

@@ -28,15 +28,6 @@ config POWER_SUPPLY_HWMON
 	  Say 'Y' here if you want power supplies to
 	  have hwmon sysfs interface too.
 
-
-config PDA_POWER
-	tristate "Generic PDA/phone power driver"
-	depends on !S390
-	help
-	  Say Y here to enable generic power driver for PDAs and phones with
-	  one or two external power supplies (AC/USB) connected to main and
-	  backup batteries, and optional builtin charger.
-
 config APM_POWER
 	tristate "APM emulation for class batteries"
 	depends on APM_EMULATION

drivers/power/supply/Makefile

@@ -9,7 +9,6 @@ obj-$(CONFIG_POWER_SUPPLY)	+= power_supply.o
 obj-$(CONFIG_POWER_SUPPLY_HWMON) += power_supply_hwmon.o
 obj-$(CONFIG_GENERIC_ADC_BATTERY)	+= generic-adc-battery.o
 
-obj-$(CONFIG_PDA_POWER)		+= pda_power.o
 obj-$(CONFIG_APM_POWER)		+= apm_power.o
 obj-$(CONFIG_AXP20X_POWER)	+= axp20x_usb_power.o
 obj-$(CONFIG_IP5XXX_POWER)	+= ip5xxx_power.o

include/linux/pda_power.h

-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Common power driver for PDAs and phones with one or two external
- * power supplies (AC/USB) connected to main and backup batteries,
- * and optional builtin charger.
- *
- * Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
- */
-
-#ifndef __PDA_POWER_H__
-#define __PDA_POWER_H__
-
-#define PDA_POWER_CHARGE_AC  (1 << 0)
-#define PDA_POWER_CHARGE_USB (1 << 1)
-
-struct device;
-
-struct pda_power_pdata {
-	int (*init)(struct device *dev);
-	int (*is_ac_online)(void);
-	int (*is_usb_online)(void);
-	void (*set_charge)(int flags);
-	void (*exit)(struct device *dev);
-	int (*suspend)(pm_message_t state);
-	int (*resume)(void);
-
-	char **supplied_to;
-	size_t num_supplicants;
-
-	unsigned int wait_for_status; /* msecs, default is 500 */
-	unsigned int wait_for_charger; /* msecs, default is 500 */
-	unsigned int polling_interval; /* msecs, default is 2000 */
-
-	unsigned long ac_max_uA; /* current to draw when on AC */
-
-	bool use_otg_notifier;
-};
-
-#endif /* __PDA_POWER_H__ */