linux-toradex.git/drivers/pinctrl/pinconf.h, branch v3.11

pinctrl: add function to parse generic pinconfig properties from a dt node

2013-06-16T09:57:32+00:00

pinconf_generic_parse_dt_config() takes a node as input and generates an
array of generic pinconfig values from the properties of this node.

As I couldn't find a mechanism to count the number of properties of a node
the function uses internally an array to accept one of parameter and copies
the real present options to a smaller variable at its end.

Signed-off-by: Heiko Stuebner 
Signed-off-by: Linus Walleij

Merge tag 'v3.9-rc5' into devel

2013-04-03T20:18:36+00:00

Linux 3.9-rc5

Conflicts:
	drivers/pinctrl/pinconf.c

pinctrl: generic: Fix compilation error

2013-03-13T18:39:59+00:00

The function definition of pinconf_generic_dump_config is defined
under CONFIG_DEBUG_FS macro. Define the declaration too under this macro.

Without this patch we get the following build error:
drivers/built-in.o: In function `pcs_pinconf_config_dbg_show':
drivers/pinctrl/pinctrl-single.c:726: undefined reference to
`pinconf_generic_dump_config'

Signed-off-by: Sachin Kamat 
Signed-off-by: Linus Walleij

pinctrl: generic: dump pin configuration

2013-03-07T04:27:30+00:00

Add the support of dumping pin configuration.

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

pinctrl: pinconf: fix compilation error if PINCONF is not selected

2012-04-18T11:53:12+00:00

When we compile pinctrl layer for platforms without CONFIG_PINCONF, we get
following compilation errors:

drivers/built-in.o: In function `pinctrl_show':
linux-2.6/drivers/pinctrl/core.c:1116: undefined
reference to `pinconf_show_setting'
drivers/built-in.o: In function `pinctrl_maps_show':
linux-2.6/drivers/pinctrl/core.c:1071: undefined
reference to `pinconf_show_map'
drivers/built-in.o: In function `pinctrl_init_device_debugfs':
linux-2.6/drivers/pinctrl/core.c:1224: undefined
reference to `pinconf_init_device_debugfs'
make[1]: *** [.tmp_vmlinux1] Error 1

This patch fixes this.

Signed-off-by: Viresh Kumar 
Signed-off-by: Linus Walleij

pinctrl: ifdef CONFIG_DEBUG_FS cleanup

2012-04-18T11:53:12+00:00

Only provide prototypes for pin{mux,conf}.c debugfs-related functions
when both CONFIG_PIN* /and/ CONFIG_DEBUG_FS are enabled, otherwise
provide static inlines.

Signed-off-by: Stephen Warren 
Signed-off-by: Linus Walleij

pinctrl: introduce generic pin config

2012-03-12T21:49:02+00:00

This is a split-off from the earlier patch set which adds generic
pin configuration for the pin controllers that want it. Since
we may have a system with mixed generic and custom pin controllers,
we pass a boolean in the pin controller ops vtable to indicate
if it is generic.

ChangeLog v1->v5:
- Follow parent patch versioning number system.
- Document the semantic meaning of return values from pin config
  get functions, so we can iterate over pins and check their
  properties from debugfs as part of the generic config code.
- Use proper cast functions in the generic debugfs pin config
  file.
- Expand generic config to optionally cover groups too.
ChangeLog v5->v6:
- Update to match underlying changes.
ChangeLog v6->v7:
- Drop DRIVE_OFF parameter, use bias high impedance for this
- Delete argument for drive modes push-pull, od and os. These
  are now just state transitions.
- Delete slew rate rising/falling due to discussions on on
  proper semantics
- Drop config wakeup, struct irq_chip does this for now, add
  back if need be.
- Set PIN_CONFIG_END to 0x7fff making room for custom config
  parameters from 0x8000 and up.
- Prefix accessor functions with pinconf_

pinctrl: enhance mapping table to support pin config operations

2012-03-05T10:25:11+00:00

The pinctrl mapping table can now contain entries to:
* Set the mux function of a pin group
* Apply a set of pin config options to a pin or a group

This allows pinctrl_select_state() to apply pin configs settings as well
as mux settings.

v3: Fix find_pinctrl() to iterate over the correct list.
   s/_MUX_CONFIGS_/_CONFIGS_/ in mapping table macros.
   Fix documentation to use correct mapping table macro.
v2: Added numerous extra PIN_MAP_*() special-case macros.
   Fixed kerneldoc typo. Delete pinctrl_get_pin_id() and
   replace it with pin_get_from_name(). Various minor fixes.
   Updates due to rebase.

Signed-off-by: Stephen Warren 
Acked-by: Dong Aisheng 
Signed-off-by: Linus Walleij

pinctrl: Re-order pinconf.[ch] to match each-other

2012-02-22T16:59:32+00:00

Modify the two files so that the order of function prototypes in the
header matches the order of implementations in the .c file.

Don't prototype a couple of internal functions.

Signed-off-by: Stephen Warren 
Signed-off-by: Linus Walleij

pinctrl: add checks for empty function names

2012-01-26T13:13:11+00:00

This is needed as otherwise we can get the following when
dealing with buggy data in a pinmux driver for
pinmux_search_function:

Unable to handle kernel NULL pointer dereference at virtual
address 00000000
...
PC is at strcmp+0xc/0x34
LR is at pinmux_get+0x350/0x8f4
...

As we need pctldev initialized to call ops->list_functions,
let's initialize it before check_ops calls and pass the
pctldev to the check_ops functions. Do this for both pinmux
and pinconf check_ops functions.

Signed-off-by: Tony Lindgren 
Signed-off-by: Linus Walleij