Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

pinctrl/abx500: fix ab9540 alternate function

Browse source 
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>
This commit is contained in:
Patrice Chotard 2013-04-03 09:21:50 +02:00 committed by Linus Walleij
parent 6282c02e2c
commit 661462f4c6
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/pinctrl/pinctrl-ab9540.c
View file

@ -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 */