linux.git/drivers/pinctrl/pinctrl-single.c, branch v3.12

Merge tag 'v3.11-rc7' into devel

2013-08-29T07:46:30+00:00

Merged in this to avoid conflicts with the big locking fixes
from upstream.

Signed-off-by: Linus Walleij 

Conflicts:
	drivers/pinctrl/pinctrl-sunxi.c

pinctrl: Pass all configs to driver on pin_config_set()

2013-08-28T11:34:41+00:00

When setting pin configuration in the pinctrl framework, pin_config_set() or
pin_config_group_set() is called in a loop to set one configuration at a time
for the specified pin or group.

This patch 1) removes the loop and 2) changes the API to pass the whole pin
config array to the driver.  It is now up to the driver to loop through the
configs.  This allows the driver to potentially combine configs and reduce the
number of writes to pin config registers.

All c files changed have been build-tested to verify the change compiles and
that the corresponding .o is successfully generated.

Signed-off-by: Sherman Yin 
Reviewed-by: Christian Daudt 
Reviewed-by: Matt Porter 
Tested-by: Stephen Warren 
Acked-by: Laurent Pinchart 
Signed-off-by: Linus Walleij

pinctrl: pinctrl-single: fix compile warning when no CONFIG_PM

2013-07-22T21:00:55+00:00

This warning has been introduced by the commit
 0f9bc4bcdf4f pinctrl: single: adopt pinctrl sleep mode management

Signed-off-by: Jean-Francois Moine 
Acked-by: Tony Lindgren 
Signed-off-by: Linus Walleij

pinctrl: single: adopt pinctrl sleep mode management

2013-06-17T16:18:34+00:00

Make pinctrl-single able to handle suspend/resume events and change
hogged pins states accordingly.

Signed-off-by: Hebbar Gururaja 
Acked-by: Tony Lindgren 
Signed-off-by: Linus Walleij

pinctrl: pinctrl-single: pin names for pinctrl-single.bits

2013-06-16T09:56:52+00:00

Take care to name pin names as
register-offset.bit-pos-of-pin-in-register in case configuring multiple
pins in register.

Signed-off-by: Manjunathappa, Prakash 
Acked-by: Haojian Zhuang 
Acked-by: Tony Lindgren 
Signed-off-by: Linus Walleij

pinctrl: pinctrl-single: enhance to configure multiple pins of different modules

2013-06-16T09:56:52+00:00

Add support to configure multiple pins in each register, existing
implementation added by [1] does not support full fledge multiple pin
configuration in single register, reports a pin clash when different
modules configure different bits of same register. The issue reported
and discussed here
http://www.spinics.net/lists/arm-kernel/msg235213.html

With pinctrl-single,bits-per-mux property specified, use function-mask
property to find out number pins to configure. Allocate and register
pin control functions based sub mask.

Tested on da850/omap-l138 EVM.
does not support variable submask for pins.
does not support pinconf.

[1] "pinctrl: pinctrl-single: Add pinctrl-single,bits type of mux"
(9e605cb68a21d5704839a192a46ebcf387773704),

Signed-off-by: Manjunathappa, Prakash 
Reported-by: Lad, Prabhakar 
Tested-by: Lad, Prabhakar 
Acked-by: Haojian Zhuang 
Acked-by: Tony Lindgren 
Signed-off-by: Linus Walleij

pinctrl: single: fix error return code in pcs_parse_one_pinctrl_entry()

2013-05-14T12:04:14+00:00

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Introduced by commit 9dddb4df90d136429b6d6ddefceb49a9b93f6cd1
(pinctrl: single: support generic pinconf)

Signed-off-by: Wei Yongjun 
Acked-by: Haojian Zhuang 
Signed-off-by: Linus Walleij

pinctrl: single: correct argument for pinconf

2013-03-13T18:50:19+00:00

pcs_pinconf_set() is always using "arg << shift" to configure two
parameters case. But pcs_add_conf2() didn't remove shift for config
argument. So correct it.

Signed-off-by: Haojian Zhuang 
Signed-off-by: Linus Walleij

pinctrl: single: Fix build error

2013-03-07T04:27:31+00:00

If pcs->is_pinconf is false, it means does not support pinconf.
If pcs->is_pinconf is true, is_generic flag is always true.

This patch fixes below build error:

  CC [M]  drivers/pinctrl/pinctrl-single.o
drivers/pinctrl/pinctrl-single.c: In function 'pcs_probe':
drivers/pinctrl/pinctrl-single.c:1441:3: error: assignment of member 'is_generic' in read-only object
make[2]: *** [drivers/pinctrl/pinctrl-single.o] Error 1
make[1]: *** [drivers/pinctrl] Error 2
make: *** [drivers] Error 2

Signed-off-by: Axel Lin 
Reviewed-by: Haojian Zhuang 
Signed-off-by: Linus Walleij

pinctrl: single: support generic pinconf

2013-03-07T04:27:31+00:00

Support the operation of generic pinconf. The supported config arguments
are INPUT_SCHMITT, INPUT_SCHMITT_ENABLE, DRIVE_STRENGHT, BIAS_DISABLE,
BIAS_PULLUP, BIAS_PULLDOWN, SLEW_RATE.

Signed-off-by: Haojian Zhuang 
Acked-by: Tony Lindgren 
Signed-off-by: Linus Walleij