From: Patrice Chotard Date: Wed, 3 Apr 2013 07:21:50 +0000 (+0200) Subject: pinctrl/abx500: fix ab9540 alternate function X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=661462f4c6d3c9ae0bac193c65936ebfac4c95b4;p=deliverable%2Flinux.git pinctrl/abx500: fix ab9540 alternate function This fix allows to correctly select default and alternate pin mode. By default for all ABx500 family chip, pin default mode is selected by clearing corresponding bit in GPIOSELx register except for pins which support alternate function, in this case, corresponding bit must be set. But, due to an unlogical hardware implementation, for one particular pin (GPIO11) reverse setting must be done. For that, update the alternate function array by declaring that this pin supports alternate function. Same issue has been fixed in pinctrl-ab8505.c Signed-off-by: Patrice Chotard Signed-off-by: Linus Walleij --- diff --git a/drivers/pinctrl/pinctrl-ab9540.c b/drivers/pinctrl/pinctrl-ab9540.c index 7610bd012b98..80f31733fddc 100644 --- a/drivers/pinctrl/pinctrl-ab9540.c +++ b/drivers/pinctrl/pinctrl-ab9540.c @@ -393,7 +393,7 @@ struct alternate_functions ab9540alternate_functions[AB9540_GPIO_MAX_NUMBER + 1] /* GPIOSEL2 - bits 0 and 3 are reserved */ ALTERNATE_FUNCTIONS(9, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* no GPIO9 */ ALTERNATE_FUNCTIONS(10, 1, 0, UNUSED, 1, 0, 0), /* GPIO10, altA and altB controlled by bit 0 */ - ALTERNATE_FUNCTIONS(11, 2, UNUSED, UNUSED, 0, 0, 0), /* GPIO11, altA controlled by bit 1 */ + ALTERNATE_FUNCTIONS(11, 2, 1, UNUSED, 0, 0, 0), /* GPIO11, altA controlled by bit 1 */ ALTERNATE_FUNCTIONS(12, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* no GPIO12 */ ALTERNATE_FUNCTIONS(13, 4, 3, 4, 1, 0, 2), /* GPIO13, altA altB and altC controlled by bit 3 and 4 */ ALTERNATE_FUNCTIONS(14, 5, UNUSED, UNUSED, 0, 0, 0), /* GPIO14, altA controlled by bit 5 */