From 6c727e09a022fcc0701eef58c4a5aedae5d9a6ac Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Wed, 24 Dec 2014 19:34:38 +0100 Subject: sunxi: gpio: Add support for gpio pins on the AXP209 pmic Some boards use GPIO-s on the pmic, one example of this is the A13-OLinuXino board, which uses gpio0 of the axp209 for the lcd-power signal. This commit adds support for gpio pins on the AXP209 pmic, the sunxi_gpio.c changes are universal, adding gpio support for the other AXP pmics (when necessary) should be a matter of adding the necessary axp_gpio_foo functions to their resp. drivers, and add "#define AXP_GPIO" to their header file. Note this commit only adds support for the non device-model version of the gpio code, patches for adding support to the device-model version are very welcome. The string representation for these gpio-s is AXP0-#, the 0 in the AXP0 prefix is there in case we need to support gpio-s on more then 1 pmic in the future. At least A80 boards have 2 pmics, and we may end up needing to support gpio-s on both. Signed-off-by: Hans de Goede Acked-by: Ian Campbell --- include/axp209.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/axp209.h b/include/axp209.h index 21efce64bb..043624953a 100644 --- a/include/axp209.h +++ b/include/axp209.h @@ -4,6 +4,8 @@ * SPDX-License-Identifier: GPL-2.0+ */ +#define AXP_GPIO + extern int axp209_set_dcdc2(int mvolt); extern int axp209_set_dcdc3(int mvolt); extern int axp209_set_ldo2(int mvolt); @@ -12,3 +14,8 @@ extern int axp209_set_ldo4(int mvolt); extern int axp209_init(void); extern int axp209_poweron_by_dc(void); extern int axp209_power_button(void); + +extern int axp_gpio_direction_input(unsigned int pin); +extern int axp_gpio_direction_output(unsigned int pin, unsigned int val); +extern int axp_gpio_get_value(unsigned int pin); +extern int axp_gpio_set_value(unsigned int pin, unsigned int val); -- cgit v1.2.1