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Commit 661462f4 authored by Patrice Chotard's avatar Patrice Chotard Committed by Linus Walleij
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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: default avatarPatrice Chotard <patrice.chotard@st.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 6282c02e

drivers/pinctrl/pinctrl-ab9540.c

+1 −1
Original line number Diff line number Diff line
@@ -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 */