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 <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/pinctrl-ab9540.c b/drivers/pinctrl/pinctrl-ab9540.c
index 7610bd012b987788ed72a108dad892c3bd4c5531..80f31733fddce7e758e01f7bde94ff75452d4aec 100644 (file)
--- 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 */