Commit a36571b5 authored Mar 28, 2013 by Patrice Chotard Committed by Linus Walleij Apr 03, 2013

pinctrl/abx500: fix ab8505 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.

Reported-by: Ramesh Chandrasekaran <ramesh.chandrasekaran@stericsson.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

parent aaed651f

drivers/pinctrl/pinctrl-ab8505.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -284,7 +284,7 @@ struct alternate_functions ab8505_alternate_functions[AB8505_GPIO_MAX_NUMBER + 1

		ALTERNATE_FUNCTIONS(9, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* no GPIO9, bit 0 reserved */
		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 2 */
		ALTERNATE_FUNCTIONS(11, 2, 1, UNUSED, 0, 0, 0), /* GPIO11, altA controlled by bit 2 */
		ALTERNATE_FUNCTIONS(12, UNUSED, UNUSED, UNUSED, 0, 0, 0), /* no GPIO12, bit3 reseved */
		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 */