Commit Graph

742 Commits

Author SHA1 Message Date
Maxime Ripard
ac68936652 pinctrl: sunxi: Add Allwinner A10s pins
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:18:33 +02:00
Maxime Ripard
44abb933f7 pinctrl: sunxi: Move the pins definitions to a separate header
It will allow us to have a cleaner separation between the data needed by
the driver to work, and the core logic of the driver in itself, and will
allow having too much noise in the core driver in the future.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:18:32 +02:00
Heiko Stübner
6abab2d4be pinctrl: dynamically alloc temp array when parsing dt pinconf options
Allocating the temorary array in pinconf_generic_parse_dt_config on stack
might cause problems later on, when the number of options grows over time.
Therefore also allocate this array dynamically to be on the safe side.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:18:31 +02:00
Heiko Stübner
e4a8844c04 pinctrl: handle zero found dt pinconfig properties better
This adds a shortcut when no valid pinconf properties are found
in the parsed dt node, to set the values immediately and return.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:18:31 +02:00
Heiko Stübner
9ee1f7d266 pinctrl: clarify some dt pinconfig options
The bias-pull-* options use values > 0 to indicate that the pull should
be activated and optionally also indicate the strength of the pull.
Therefore use an default value of 1 for these options.

Split the low-power-mode option into low-power-enable and -disable.

Update the documentation to describe the param arguments better.

Reported-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:18:30 +02:00
Christian Ruppert
c8587eeef8 pinctrl: add pin list based GPIO ranges
Traditionally, GPIO ranges are based on consecutive ranges of both GPIO
and pin numbers. This patch allows for GPIO ranges with arbitrary lists
of pin numbers.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:18:28 +02:00
Doug Anderson
5ace03fb6a pinctrl: exynos: reorder xyz_irq_unmask() so future patch can ack
This patch does nothing but reorder the functions to improve the
readability of a future patch.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 12:01:55 +02:00
Doug Anderson
5ae8cf7980 pinctrl: exynos: Add spinlocks to irq_mask and irq_unmask
The patch:
  1984695 pinctrl: samsung: Protect bank registers with a spinlock

...added spinlocks to protect many accesses.  However, the irq_mask
and irq_unmask functions still do an unprotected read/modify/write.
Add the spinlock there.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 12:01:54 +02:00
Patrice Chotard
ce06f40740 pinctrl: abx500: fix build warning
pinctrl-abx500.c: In function 'abx500_gpio_dbg_show_one':
pinctrl-abx500.c:534:14: warning: 'pud' may be used
uninitialized in this function [-Wuninitialized]

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:57:33 +02:00
Heiko Stübner
d3e5116119 pinctrl: add pinctrl driver for Rockchip SoCs
This driver adds support the Cortex-A9 based SoCs from Rockchip,
so at least the RK2928, RK3066 (a and b) and RK3188.
Earlier Rockchip SoCs seem to use similar mechanics for gpio
handling so should be supportable with relative small changes.
Pull handling on the rk3188 is currently a stub, due to it being
a bit different to the earlier SoCs.

Pinmuxing as well as gpio (and interrupt-) handling tested on
a rk3066a based machine.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:57:32 +02:00
Heiko Stübner
7db9af4b6e pinctrl: add function to parse generic pinconfig properties from a dt node
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 <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:57:32 +02:00
Maxime Ripard
7f884b6483 pinctrl: sunxi: Add external interrupt functions
The A10 and A13 has a few pins that can be muxed into a particular
function that can be used as an interrupt source. Add the available
pins for such functions to the A10 and A13 description array.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:57:32 +02:00
Maxime Ripard
60242db1a7 pinctrl: sunxi: Add external interrupts support
The port controller IP found in the Allwinner A10 and A13 can use few of
the pins it manage as an interrupt source, called external interrupts in
the datasheet.

The number of these external interrupts are SoCs specific, but the
current upper limit is 32. In order to work, the external interrupts'
pins have to be muxed to a specific function to generate an interrupt.

This patch adds the irqchip and the needed logic to use the PIO
controller as an interrupt controller.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:57:31 +02:00
Maxime Ripard
814d4f2e15 pinctrl: sunxi: Search the description array by pin id
Avoid to use expensive string manipulation functions and search by pin
id when possible.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:53 +02:00
Thomas Abraham
79bae27ff9 pinctrl: exynos5440: fix issues reported by prevent tool
This patch fixes issues reported by prevent tool.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
[Drop hunk already in-tree from a patch by Wei Yongjun]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:52 +02:00
Manjunathappa, Prakash
6f924b0b7c pinctrl: pinctrl-single: pin names for pinctrl-single.bits
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 <prakash.pm@ti.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:52 +02:00
Manjunathappa, Prakash
4e7e8017a8 pinctrl: pinctrl-single: enhance to configure multiple pins of different modules
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"
(9e605cb68a),

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Reported-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Tested-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:52 +02:00
Linus Walleij
14005ee270 drivers: pinctrl sleep and idle states in the core
If a device have sleep and idle states in addition to the
default state, look up these in the core and stash them in
the pinctrl state container.

Add accessor functions for pinctrl consumers to put the pins
into "default", "sleep" and "idle" states passing nothing but
the struct device * affected.

Solution suggested by Kevin Hilman, Mark Brown and Dmitry
Torokhov in response to a patch series from Hebbar
Gururaja.

Cc: Hebbar Gururaja <gururaja.hebbar@ti.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:52 +02:00
Heiko Stübner
7970cb770d pinctrl: add pinconf-generic define for a pin-default pull
There exist controllers that don't support to set the pull to up or down
separately but instead automatically set the pull direction based on
embedded knowledge inside the controller, for example depending on the
selected mux function of the pin.

Therefore this patch adds another config option to use this default
pull-state for a pin where it is not possible to know or decide if the
pin will be pulled up or down.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:51 +02:00
Jingchang Lu
78bafc6618 pinctrl: add VF610 pinctrl driver
Adds Freescale Vybrid VF610 pin controller
driver to IMX common pinctrl driver framework.

Signed-off-by: Jingchang Lu <b35083@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:51 +02:00
Jingchang Lu
bf5a530971 pinctrl: imx: add VF610 support to imx pinctrl framework
On some platforms such as VF610, offset of mux and pad ctrl register
may be zero, and the mux_mode and config_val are in one 32-bit register.
This patch adds support to imx core pinctrl framework to handle these
cases.

Signed-off-by: Jingchang Lu <b35083@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:51 +02:00
Patrice Chotard
d2752ae54d pinctrl: abx500: fix abx500_gpio_dbg_show_one() to show pull up/down
- rework abx500_gpio_dbg_show_one() to take in account pull up/down
  feature available on AB8540 only.
- add abx500_get_pull_updown() needed by abx500_gpio_dbg_show_one()
- rename abx500_config_pull_updown() to abx500_set_pull_updown()

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:51 +02:00
Patrice Chotard
9ed3cd3338 pinctrl: abx500: allow to set pull up
On ABx500 chip family, all pins support only pull down except for
AB8540 which supports pull up/down on some pins.
Rework abx500_pin_config_set to be able to set pull up on
pins which support this feature.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:51 +02:00
Patrice Chotard
10a8be5414 pinctrl: abx500: fix abx500_config_pull_updown
Fix abx500_config_pull_updown() to set correct bit in
AB8540_GPIO_PULL_UPDOWN_REG.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:50 +02:00
James Hogan
a2df4269ca pinconf-generic: add BIAS_BUS_HOLD pinconf
Add a new PIN_CONFIG_BIAS_BUS_HOLD pin configuration for a bus holder
pin mode (also known as bus keeper, or repeater). This is a weak latch
which drives the last value on a tristate bus. Another device on the bus
can drive the bus high or low before going tristate to change the value
driven by the pin.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:50 +02:00
James Hogan
73ae368cd3 pinconf-generic: add drive strength to debugfs output
Add the drive strength pinconf to debugfs output (with the unit "mA").

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:50 +02:00
Patrice Chotard
b0bb6426e4 pinctrl: abx500: suppress unused mutex
Suppress a mutex which was initialized on probe
and destroyed on remove but never used.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:50 +02:00
Barry Song
bc8d25a405 pinctrl: sirf: save the status in suspend and restore after resuming
this patch saves the status of pinctrl registers and restore them while
resuming. this makes all drivers have coherent status for pinmux after
suspending and resuming.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:50 +02:00
Linus Walleij
44d5f7bbea pinctrl: sink pinctrldev_list_mutex
The pinctrldev_list_mutex is sinked into the functions that
actually traverse the list and lock it there. The code makes
much more sense in this way. All the callers are in
non-performance critical paths and the code is way more
readable this way.

Also refactor the function get_pinctrl_dev_from_devname() to
follow the design pattern of get_pinctrl_dev_from_of_node()
which is slightly simpler.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:50 +02:00
Barry Song
3370dc916c pinctrl:sirf:re-arch and add support for new SiRFatlas6 SoC
atlas6 is a SoC very similar with primaII, the register layput of
pinctrl is same, but the pads, groups and functions of atlas6 have
different layout with prima2, this patch
1. pull the definition of pads, groups and functions out of the
pinctrl-sirf driver,and put them into soc-specific files
2. add pads, groups and functions tables for atlas6
3. let pads, groups and functions tables become the config data of
   the related dt compatible node, so the pinctrl-sirf can support
   all SiRF SoCs with the config data as private data.

In this patch,we create a sirf dir, and let
the old drivers/pinctrl/pinctrl-sirf.c =
        drivers/pinctrl/sirf/pinctrl-prima2.c +
        drivers/pinctrl/sirf/pinctrl-sirf.c

drivers/pinctrl/sirf/pinctrl-atlas6.c is a newly created file for the
pin layout of atlas6.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:49 +02:00
Laurent Navet
76cda6ec39 drivers: pinctrl: vt8500: use devm_ioremap_resource()
Replace a call to deprecated devm_request_and_ioremap by devm_ioremap_resource.

Found with coccicheck and this semantic patch:
 scripts/coccinelle/api/devm_ioremap_resource.cocci

Signed-off-by: Laurent Navet <laurent.navet@gmail.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:49 +02:00
Sebastian Hesselbarth
bbd7b275db pinctrl: dove: add PMU functions to pinctrl
Dove power management unit can mux some special functions to mpp0-15.
This patch adds support to set/get the current PMU function mapped
to the corresponding mpp pins. The device tree documentation is also
updated accordingly.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:49 +02:00
Wolfram Sang
8ec136d0f3 drivers/pinctrl/spear: don't check resource with devm_ioremap_resource
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:49 +02:00
Shawn Guo
4fdf774fc9 pinctrl: enable build of pinctrl-imx6sl driver
The pinctrl-imx6sl is in place.  Enable the build of it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:49 +02:00
Wolfram Sang
f50b9e12db drivers/pinctrl: don't check resource with devm_ioremap_resource
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:49 +02:00
Jingoo Han
dbf850c687 pinctrl: u300: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d06310
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:48 +02:00
Jingoo Han
3e6eeafc9c pinctrl: sirf: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d06310
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:48 +02:00
Jingoo Han
59eb14dcc6 pinctrl: mxs: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d06310
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:48 +02:00
Jingoo Han
c87feeeb1e pinctrl: coh901: remove unnecessary platform_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d06310
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-16 11:56:48 +02:00
Olof Johansson
fb565ff7c8 Renesas ARM based SoC fixes for v3.10
* Correction to USB OVC and PENC pin groupings on r8a7779 SoC.
   This avoids conflicts when the USB_OVCn pins are used by another function.
   This has been observed to be a problem in v3.10-rc1.
 
 * Update CMT clock rating for sh73a0 SoC to resolve boot failure
   on kzm9g-reference. This resolves a regression between v3.9 and v3.10-rc1.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJRrZpLAAoJENfPZGlqN0++t0UQAIBErmUK+bGdZ21NmWmjIMb3
 mOegzj53Fvl3nWixPqYEGOSBEMtAltL4BnuEIJ5cC4jIijHYn9YtAfGQYSmgyV4+
 KxloM8ZpJ6deGsKC5NyPnq9Hf+8Qec44LxQRuZxh58gchZFoUn2DAZBCBeLYlSs1
 t2BHBD4aMaI6VYfMpBOaSPNn7oCds2kzqQ7pkiLkLdUWw1pnfxkWzBB+4+JYCOx1
 BqfwgoxuhHSf7J9W2sb4EakDh19ZjBPfcjdS/DJOSk3Q6WyhkyaC6VkdYiVXekWg
 tcedXxB4QavDkDiAje1/z9gBJHnE58ZKB+Q3MakHgwunhr5wMBzS1Hk62ybcPW+W
 fUzhzmJd/BLxfzAJbguNoGistWmY6qcf8F2Zvx6VyI+X+BK4OulZvJzle4t5mDu6
 GdYXRYP/dX9IuMrA5i5uemYF3/7Qj+CXkyO+6r6baGSBub9rE+dDI15Zjzm7en8n
 DpSji9h2gvmN3jJ5fq22MikRegk+UyMGahr3P7DqgJdv6SPNGVe5cEJRLrijYojM
 qC9MCyh4Jnai0NRnFoIf4+DhF3/fqbmgcBCOINDpkisf1u7Qxrm10c7kFHngu20w
 ub9xhHq3hYgzcwn4rk/c/H5deWdOj5LoKM+ddy4isihbCOKtcPrOVHTWSnGuL+th
 hnXe/GxU9Tyq0yF+JgT7
 =oukw
 -----END PGP SIGNATURE-----

Merge tag 'renesas-fixes-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

From Simon Horman, Renesas ARM based SoC fixes for v3.10:
- Correction to USB OVC and PENC pin groupings on r8a7779 SoC.
  This avoids conflicts when the USB_OVCn pins are used by another function.
  This has been observed to be a problem in v3.10-rc1.
- Update CMT clock rating for sh73a0 SoC to resolve boot failure
  on kzm9g-reference. This resolves a regression between v3.9 and v3.10-rc1.

* tag 'renesas-fixes-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: sh73a0: Update CMT clockevent rating to 80
  sh-pfc: r8a7779: Don't group USB OVC and PENC pins

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-07 18:11:02 -07:00
Laurent Pinchart
350753bf2b sh-pfc: r8a7779: Don't group USB OVC and PENC pins
The USB_OVCn pins are alternate options for USB over-current detection
when using a 3.3V USB interface. As they're not mandatory they can be
used independently of the USB PENC pins. Don't group the USB_OVCn and
PENC pins to avoid conflicts when the USB_OVCn pins are used by another
function.

Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-04 14:37:43 +09:00
Linus Walleij
a386267a2c pinctrl: pinconf: take the right mutex
The pinconf_dgb_config_print() takes the per-pincontroller
mutex, when what it wants to take is actually the pin maps
mutex.

Reported-by: James Hogan <james.hogan@imgtec.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27 15:53:32 +02:00
Wei Yongjun
d72f88a42b pinctrl: sunxi: fix error return code in sunxi_pinctrl_probe()
Fix to return a negative error code from the devm_clk_get() error
handling case instead of 0, as done elsewhere in this function.

Introduced by commit 950707c0eb
(pinctrl: sunxi: add clock support)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27 15:37:09 +02:00
Tomasz Figa
7ccbc60cd9 pinctrl: exynos: Handle suspend/resume of GPIO EINT registers
Some GPIO EINT control registers needs to be preserved across
suspend/resume cycle. This patch extends the driver to take care of
this.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27 15:37:09 +02:00
Tomasz Figa
3385474c3a pinctrl: samsung: Allow per-bank SoC-specific private data
This patch extends pin bank descriptor structure with SoC-specific
private data field that allows SoC-specific drivers to store their own
private data.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27 15:37:09 +02:00
Tomasz Figa
21c219933f pinctrl: samsung: Add support for SoC-specific suspend/resume callbacks
SoC-specific driver might require additional save and restore of
registers. This patch adds pair of SoC-specific callbacks per pinctrl
device to account for this.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27 15:37:08 +02:00
Axel Lin
97fc463769 pinctrl: Don't override the error code in probe error handling
Otherwise, we return 0 in probe error paths when gpiochip_remove() returns 0.
Also show error message if gpiochip_remove() fails.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27 15:37:08 +02:00
Tomasz Figa
ad350cd9d5 pinctrl: exynos: Add support for set_irq_wake of wake-up EINTs
This patch adds support of IRQ wake-up ability configuration for
wake-up EINTs on Exynos SoCs.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27 15:37:08 +02:00
Doug Anderson
d9f998639f pinctrl: samsung: fix suspend/resume functionality
The GPIO states need to be restored after s2r and this is not currently
supported in the pinctrl driver. This patch saves the gpio states before
suspend and restores them after resume.

Saving and restoring is done very early using syscore_ops and must
happen before pins are released from their powerdown state.

Patch originally from Prathyush K <prathyush.k@samsung.com> but
rewritten by Doug Anderson <dianders@chromium.org>.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-27 15:37:08 +02:00
Linus Torvalds
2c2c0e5231 Pinctrl fixes for the v3.10 series:
- Three fixes to make the boot path for device tree work
   properly on the Nomadik pin controller.
 - Compile warning fix for the vt8500 driver.
 - Fix error path in pinctrl-single.
 - Free mappings in error path of the Lantiq controller.
 - Documentation fixes.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.10 (GNU/Linux)
 
 iQIcBAABAgAGBQJRmcmZAAoJEEEQszewGV1zw50P/izLGWYy5k3sUx27vdifwPJL
 I+H/+G77lvd3JvhqZRn/lZiOuTHnTgL0zLJrgk+B2u/r7b4IXNF11A0vy8EVLSuP
 /1LIkxK5ZRkxy9hDlDOlE7iCoh1p10jS+JURCRQep4K9uTqIS7dSkw47bTpp8I0w
 /UE9nI5HVHbjRORH42RP8xnDqng/lYgOQu4hk4wxXKAisQ5nXh2pfGmYflM77XOu
 lCrISk1O7E4RSWLCXE4HPy5d1OCk3RxEvdIGc9JqD8aGQ9Hqo2Vaqb7w74Of+rTN
 4WfSVTBVAn4B2FaF8/2pCDiwfZDoKMHegAmqGrt80xUidjYW6YFP9Ey6q8mvFQoc
 ELIY3+A1KmfhmRp/HwoKZJp8jjjhFcjlne9o+kjr75r45OCGd7Qsiuylt2RgP6tp
 a/v/NDHvnSVWZFkRSDF3l4qDqSb6EVD8yqmQOUxS+NdBkrVULWs/bHXfGwL/9QzA
 QrDkuMlmHnHgWscZsSoJGGw2olFLcKNYHs5xIAd8aufH2CxdDg9gM/NnHU62e8yI
 600ClHAAl0oH0xH1G9aMp92izgjBMKtr1h8nPsupTWCzPOaRnc4VRYm+C7Vb4hjd
 Oi16vY2bQSJ/o2lWt3MTEPbKPx1fKte0S9c+rkzTfw/Us/Q1DGOZg10lLrVmgKij
 M6TP5EBGNwsqn99h8Vqu
 =Kj7K
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl fixes from Linus Walleij:

 - Three fixes to make the boot path for device tree work properly on
   the Nomadik pin controller.

 - Compile warning fix for the vt8500 driver.

 - Fix error path in pinctrl-single.

 - Free mappings in error path of the Lantiq controller.

 - Documentation fixes.

* tag 'pinctrl-fixes-v3.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl/lantiq: Free mapping configs for both pin and groups
  pinctrl: single: fix error return code in pcs_parse_one_pinctrl_entry()
  pinctrl: generic: Fix typos and clarify comments
  pinctrl: vt8500: Fix incorrect data in WM8750 pinctrl table
  pinctrl: abx500: Rejiggle platform data and DT initialisation
  pinctrl: abx500: Specify failed sub-driver by ID instead of driver_data
2013-05-20 07:59:46 -07:00