power_supply: Add gpio charger driver

This patch adds a simple driver for chargers indicating their online
status through a GPIO pin.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/include/linux/power/gpio-charger.h b/include/linux/power/gpio-charger.h
new file mode 100644
index 00000000000..de1dfe09a03
--- /dev/null
+++ b/include/linux/power/gpio-charger.h
@@ -0,0 +1,41 @@
+/*
+ *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ *
+ *  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.
+ *
+ *  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.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#ifndef __LINUX_POWER_GPIO_CHARGER_H__
+#define __LINUX_POWER_GPIO_CHARGER_H__
+
+#include <linux/power_supply.h>
+#include <linux/types.h>
+
+/**
+ * struct gpio_charger_platform_data - platform_data for gpio_charger devices
+ * @name:               Name for the chargers power_supply device
+ * @type:               Type of the charger
+ * @gpio:               GPIO which is used to indicate the chargers status
+ * @gpio_active_low:    Should be set to 1 if the GPIO is active low otherwise 0
+ * @supplied_to:        Array of battery names to which this chargers supplies power
+ * @num_supplicants:    Number of entries in the supplied_to array
+ */
+struct gpio_charger_platform_data {
+        const char *name;
+        enum power_supply_type type;
+
+        int gpio;
+        int gpio_active_low;
+
+        char **supplied_to;
+        size_t num_supplicants;
+};
+
+#endif