1058 Commits

Author SHA1 Message Date
Heiko Stübner
256aeb6487 pinctrl: set unit for debounce time pinconfig to usec
Currently the debounce time pinconfig option uses an unspecified
"time units" unit. As pinconfig options should use SI units and a
real unit is also necessary for generic dt bindings, change it
to usec. Currently no driver is using the generic pinconfig option
for this, so the unit change is safe to do.

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>
2013-06-25 15:34:44 +02:00
Linus Walleij
ad42fc6c84 pinctrl: rip out the direct pinconf API
From the inception ot the pin config API there has been the
possibility to get a handle at a pin directly and configure
its electrical characteristics. For this reason we had:

int pin_config_get(const char *dev_name, const char *name,
               unsigned long *config);
int pin_config_set(const char *dev_name, const char *name,
               unsigned long config);
int pin_config_group_get(const char *dev_name,
               const char *pin_group,
               unsigned long *config);
int pin_config_group_set(const char *dev_name,
               const char *pin_group,
               unsigned long config);

After the introduction of the pin control states that will
control pins associated with devices, and its subsequent
introduction to the device core, as well as the
introduction of pin control hogs that can set up states on
boot and optionally also at sleep, this direct pin control
API is a thing of the past.

As could be expected, it has zero in-kernel users.
Let's delete this API and make our world simpler.

Reported-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-25 12:54:56 +02:00
James Hogan
b58f0273f0 pinctrl-tz1090-pdc: add TZ1090 PDC pinctrl driver
Add a pin control driver for the TZ1090's low power pins via the
powerdown controller SOC_GPIO_CONTROL registers.

These pins have individually controlled pull-up, and group controlled
schmitt, slew-rate, drive-strength, and power-on-start (pos).

The pdc_gpio0 and pdc_gpio1 pins can also be muxed onto the
ir_mod_stable_out and ir_mod_power_out functions respectively. If no
function is set they remain in GPIO mode. These muxes can be overridden
by requesting them as GPIOs.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-doc@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 17:21:38 +02:00
James Hogan
d5025f9f53 pinctrl-tz1090: add TZ1090 pinctrl driver
Add a pin control driver for the main pins on the TZ1090 SoC. This
doesn't include the low-power pins as they're controlled separately via
the Powerdown Controller (PDC) registers.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-doc@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 17:21:38 +02:00
Sachin Kamat
b94089751a pinctrl: samsung: Staticize drvdata_list
'drvdata_list' is used only in this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 15:20:33 +02:00
Axel Lin
7cc5f97008 pinctrl: rockchip: Add missing irq_gc_unlock() call before return error
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 15:20:32 +02:00
Patrice Chotard
9be580afe4 pinctrl: abx500: rework error path
At several places, return value was not tested
and error output was missing.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 15:20:32 +02:00
Patrice Chotard
acd260b0aa pinctrl: abx500: suppress hardcoded value
Replace hardcoded value by corresponding #define's.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 15:20:28 +02:00
Patrice Chotard
8b5abd18e2 pinctrl: abx500: factorize code
Factorize code by adding abx500_pullud_supported()
which improve code readability.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 13:33:21 +02:00
Patrice Chotard
d8d4f7f875 pinctrl: abx500: fix abx500_gpio_get()
- allow to get output GPIO value
- as there is no GPIO0 on ABX500, use correct offset with
  abx500_gpio_get_bit()

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 13:31:00 +02:00
Patrice Chotard
61ce135679 pinctrl: abx500: fix abx500_pin_config_set()
- Update abx500_pin_config_set() in order to take in
account PIN_CONFIG_BIAS_DISABLE state to disable
pull up or pull down.

- Rework error path.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 13:29:59 +02:00
Patrice Chotard
64a45c9863 pinctrl: abx500: Add device tree support
We use the same way to define pin muxing and pin configuration
than for nomadik. So pickup code from pinctrl_nomadik.c to be
able to implement pin multiplexing and pin configuration using
the device tree. Pin configuration uses generic parsing code.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 13:16:45 +02:00
Laurent Pinchart
3a8d63d4b4 sh-pfc: Guard DT parsing with #ifdef CONFIG_OF
Fix a compilation error caused by pinconf_generic_parse_dt_config() not
being defined on !CONFIG_OF platforms by guarding the whole DT node
parsing code with #ifdef CONFIG_OF.

Defining a pinconf_generic_parse_dt_config() on !CONFIG_OF would have
been possible as well, but would have resulted in a larger code size on
!CONFIG_OF platforms (such as arch/sh).

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-24 11:34:11 +02:00
Arnd Bergmann
d405534dcd Second Round of Renesas ARM based SoC pinmux and GPIO update for v3.11
tidyup MMC_D1 pin for r8a7778 SoC
 fix two pin numbers and add HSCIF pin groups to r8a7790 SoC
 add pinmux data for MMCIF and SDHI interfaces for r8a73a4 SoC
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Merge tag 'renesas-pinmux2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/drivers

From Simon Horman:

Second Round of Renesas ARM based SoC pinmux and GPIO update for v3.11

tidyup MMC_D1 pin for r8a7778 SoC
fix two pin numbers and add HSCIF pin groups to r8a7790 SoC
add pinmux data for MMCIF and SDHI interfaces for r8a73a4 SoC

* tag 'renesas-pinmux2-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  sh-pfc: r8a7778: tidyup MMC_D1 pin
  pinctrl: r8a7790: fix two pin numbers
  sh-pfc: r8a7790: add HSCIF pin groups
  pinctrl: r8a73a4: add pinmux data for MMCIF and SDHI interfaces

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-21 15:14:10 +02:00
Arnd Bergmann
704b1005d1 Renesas ARM based SoC cleanups for v3.11
__initdata annotations for the r8a7790 SoC by Morimoto-san.
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Merge tag 'renesas-cleanup-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/late

From Simon Horman:

Renesas ARM based SoC cleanups for v3.11

__initdata annotations for the r8a7790 SoC by Morimoto-san.

* tag 'renesas-cleanup-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (158 commits)
  ARM: shmobile: r8a7790: add __initdata on resource and device data

Based on 'renesas-pinmux-for-v3.11' and 'renesas-soc-for-v3.11

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-21 14:54:09 +02:00
Arnd Bergmann
86727c62c8 based on s3c24xx-pinctrl
- use correct header for chained_irq functions for s3c24xx-pinctrl
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Merge tag 's3c24xx-pinctrl-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers

From Kukjin Kim:

based on s3c24xx-pinctrl
- use correct header for chained_irq functions for s3c24xx-pinctrl

* tag 's3c24xx-pinctrl-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  pinctrl: s3c24xx: use correct header for chained_irq functions

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20 22:29:08 +02:00
Arnd Bergmann
402bf90df5 arch/arm/mach-exynos update
- enable XHCI on exynos5
 - enable Pinctrl on exynos4 and exynos5
 - calling scu_enable() is only available on Cortex-A9
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Merge tag 'exynos-arch-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

From Kukjin Kim:

arch/arm/mach-exynos update
- enable XHCI on exynos5
- enable Pinctrl on exynos4 and exynos5
- calling scu_enable() is only available on Cortex-A9

* tag 'exynos-arch-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: call scu_enable() only in case of cortex-A9 processor
  ARM: EXYNOS: Select PINCTRL_EXYNOS for exynos4/5 at chip level
  ARM: EXYNOS: Enable XHCI support on exynos5

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20 21:50:51 +02:00
Arnd Bergmann
15f4b11b0f Nomadik DT and clock work:
- Lee Jones' pinctrl compat ontology patches
 - A real clock driver for the Nomadik, 100% DT-based
 - Device tree changes for the Nomadik clocks
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Merge tag 'nomadik-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik into next/dt

From Linus Walleij:

Nomadik DT and clock work:
- Lee Jones' pinctrl compat ontology patches
- A real clock driver for the Nomadik, 100% DT-based
- Device tree changes for the Nomadik clocks

* tag 'nomadik-dt-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik:
  ARM: nomadik: add the new clocks to the device tree
  clk: nomadik: implement the Nomadik clocks properly
  pinctrl/nomadik: Standardise Pinctrl compat string for Nomadik based platforms
  ARM: nomadik: Standardise Nomadik STN8815 based Pinctrl compat string in the DTS

Conflicts:
	arch/arm/boot/dts/ste-nomadik-s8815.dts

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20 16:13:10 +02:00
Arnd Bergmann
c3b693d1d6 Device Tree and Multiplatform support for U300:
- Add devicetree support to timer, pinctrl (probe), I2C block,
   watchdog, DMA controller and clocks.
 - Piecewise add a device tree containing all peripherals.
 - Delete the ATAG boot path.
 - Delete redundant platform data and board files.
 - Convert to multiplatform.
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Merge tag 'u300-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/soc

From Linus Walleij:

Device Tree and Multiplatform support for U300:
- Add devicetree support to timer, pinctrl (probe), I2C block,
  watchdog, DMA controller and clocks.
- Piecewise add a device tree containing all peripherals.
- Delete the ATAG boot path.
- Delete redundant platform data and board files.
- Convert to multiplatform.

* tag 'u300-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson: (40 commits)
  ARM: u300: switch to using syscon regmap for board
  ARM: u300: Update MMC configs for u300 defconfig
  spi: pl022: use DMA by default when probing from DT
  pinctrl: get rid of all platform data for coh901
  ARM: u300: convert MMC/SD clock to device tree
  ARM: u300: move the gated system controller clocks to DT
  i2c: stu300: do not request a specific clock name
  clk: move the U300 fixed and fixed-factor to DT
  ARM: u300: remove register definition file
  ARM: u300: add syscon node
  ARM: u300 use module_spi_driver to register driver
  ARM: u300: delete remnant machine headers
  ARM: u300: convert to multiplatform
  ARM: u300: localize <mach/u300-regs.h>
  ARM: u300: delete <mach/irqs.h>
  ARM: u300: delete <mach/hardware.h>
  ARM: u300: push down syscon registers
  ARM: u300: remove deps from debug macro
  ARM: u300: move debugmacro to debug includes
  ARM: u300: delete all static board data
  ...

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-06-20 01:51:18 +02:00
Leela Krishna Amudala
983dbeb35f pinctrl: exynos: add exynos5420 SoC specific data
Add Samsung EXYNOS5420 SoC specific data to enable pinctrl
support for all platforms based on EXYNOS5420.

Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by : Sunil Joshi <joshi@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-06-19 22:19:08 +09:00
Doug Anderson
83978253d0 ARM: EXYNOS: Select PINCTRL_EXYNOS for exynos4/5 at chip level
Previously if you had MACH_EXYNOS5_DT but not MACH_EXYNOS4_DT you'd be
missing the pincontrol definitions.  Move PINCTRL selects to the arch
level since we should be enabling the code for all exynos variants.

Update the PINCTRL descriptions to indicate that PINCTRL_EXYNOS is not
for exynos5440.  Also add basic dependencies for the PINCTRL_EXYNOS
kernel config.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-06-19 03:41:37 +09:00
Heiko Stuebner
c2c70a7905 pinctrl: s3c24xx: use correct header for chained_irq functions
chained_irq_enter and chained_irq_exit moved to a real header
under linux/pinctrl instead of asm/.

Update the pinctrl driver to use the correct header and fix the
build error.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>`
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-06-19 02:41:20 +09:00
Mathias Nyman
a5d811bbf1 pinctrl: add Intel BayTrail GPIO/pinctrl support
Add support for gpio on Intel BayTrail platforms. BayTrail supports 3 banks
of gpios called SCORE, NCORE ans SUS with 102, 28 and 44 gpio pins.
Supports gpio interrupts and ACPI gpio events

Pins may be muxed to alternate function instead of gpio by firmware.
This driver does not touch the pin muxing and expect firmare
to set pin muxing and pullup/down properties properly.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 17:23:40 +02:00
Sachin Kamat
843aec9653 pinctrl: Staticize local symbols
Symbols referenced only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 16:54:45 +02:00
Sachin Kamat
a59f0e2181 pinctrl: spear/plgpio: Staticize spear310_o2p
'spear310_o2p' is referenced only in this file.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 16:52:37 +02:00
Sachin Kamat
2230a36e31 pinctrl: nomadik: Staticize local symbols
Some symbols referenced only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 16:51:37 +02:00
Sachin Kamat
e8ed912e6e pinctrl: bcm2835: Staticize bcm2835_gpio_pins
'bcm2835_gpio_pins' is used only in this file.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 16:50:27 +02:00
Laurent Pinchart
12f3ad8df7 sh-pfc: Add pinconf support to DT bindings
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 10:57:59 +02:00
Laurent Pinchart
fe1c9a822c sh-pfc: Add DT support
Support device instantiation through the device tree. The compatible
property is used to select the SoC pinmux information.

Set the gpio_chip device field to the PFC device to enable automatic
GPIO OF support.

Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 10:57:51 +02:00
Laurent Pinchart
3a7f520e63 sh-pfc: Remove support for platform data
Platform data isn't used, support can thus be removed.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 10:57:27 +02:00
Wei Yongjun
c8f50e8657 pinctrl: core: fix missing unlock on error in pinctrl_find_gpio_range_from_pin()
Add the missing unlock before return from function pinctrl_find_gpio_range_from_pin()
in the error handling case.

Introduced by commit 2ff3477efd7086544b9e298fc63afab0645921b4.
(pinctrl: add pin list based GPIO ranges)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-18 09:41:15 +02:00
Kuninori Morimoto
cd622017eb sh-pfc: r8a7778: tidyup MMC_D1 pin
MMC_D1 is RCAR_GP_PIN(1, 8), not RCAR_GP_PIN(2, 8)

Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-18 16:13:28 +09:00
Doug Anderson
5a68e7a748 pinctrl: exynos: ack level-triggered interrupts before unmasking
A level-triggered interrupt should be acked after the interrupt line
becomes inactive and before it is unmasked, or else another interrupt
will be immediately triggered.  Acking before or after calling the
handler is not enough.

Signed-off-by: Luigi Semenzato <semenzato@chromium.org>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:58:16 +02:00
Arnd Bergmann
f472deadd5 pinctrl: export pinctrl_pm_select_*_state
The three functions pinctrl_pm_select_default_state,
pinctrl_pm_select_sleep_state, and pinctrl_pm_select_idle_state
are used in drivers that can be loadable modules, and should
be exported.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:29:32 +02:00
Heiko Stübner
44b6d93043 pinctrl: rockchip: correctly handle arguments of pinconf options
Change the rockchip pinctrl driver to handle the arguments to the pull
pinconfig options correctly. So only accept non-0 values for the
pull options as the rockchip pin-controller can only turn pulls on and
off (this via BIAS_DISABLE).

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:18:34 +02:00
Hebbar Gururaja
0f9bc4bcdf pinctrl: single: adopt pinctrl sleep mode management
Make pinctrl-single able to handle suspend/resume events and change
hogged pins states accordingly.

Signed-off-by: Hebbar Gururaja <gururaja.hebbar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 18:18:34 +02:00
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
Linus Walleij
b263e9b887 pinctrl: get rid of all platform data for coh901
This deletes the dependency on any platform data for
the COH901 pin controller. There is only one user in the
kernel, and if we at some point want to support more
variants, they shall provide their variant info through
the device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-17 13:54:38 +02:00
Guennadi Liakhovetski
0a6ea54ff0 pinctrl: r8a7790: fix two pin numbers
Fix two erroneous MMCIF1 pin numbers on r8a7790.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-17 11:20:52 +09:00
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