Commit Graph

107 Commits

Author SHA1 Message Date
Linus Torvalds 2b425a3f11 This is the bulk of pin control changes for the v3.18
development series:
 
 - New drivers for the Freescale i.MX21, Qualcomm APQ8084
   pin controllers.
 
 - Incremental new features on the Rockchip, atlas 6,
   OMAP, AM437x, APQ8064, prima2, AT91, Tegra, i.MX, Berlin
   and Nomadik.
 
 - Push Freescale drivers down into their own subdirectory.
 
 - Assorted sprays of syntax and semantic fixes.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJUMkr3AAoJEEEQszewGV1z/xsP/1EFR6zyriyup3TuWw1kiqwH
 wGuEK3i0v99INcK46l9xD65aZLaK60Z6llYAmwa2wmFCDotOr46GSW2V9bqd0RHg
 6EZdDATo8Ge8j86L9oUMElbMJoKMQiVC6+YeiuhQRrFuq8TpXGoTMPeQlaEslR08
 MUjIVcxRbFeQCWOgkaqjjxwgX1FPU1S9aQNxDDDPuWSwTowV0nwBpdFviAgWlouY
 DDG4/WPWH7s/Ujv0MJ7MQR9Hkl6WYlcuhGWDUkcIj7f1lvxTTB37Em7daBUBwhQo
 PEYmf1AtwMEWF2y1i99ExFE/YSBQjjslYe29uECvaH63PVgfRMrWgJl199NOed8Q
 9GfEa+uwiV4Z4PxFZqcvsjUiNQg8SoijP4UTf9AJTuQZtebVia8OS9AFsN3XULHJ
 zXGKbCUd2kH+p/0/MJUePQEDoi9bPrsIhNG/s3KYmawQ6Ua4uytPgG0lF91dvP6m
 LvCnsGNDvGQUk1UUG3Lj4ZDCP42TAbjNyr27Ot/oUAygjHfjsXsZ6FFmlMCOeCRx
 tV+qjW9Ng69CSLPLKHCHVMsXKliJ2Vp2Mt8cr8yFyHaMDIneRx3IqUvrZ0dzfVLq
 /H3/7usvR/sEV23AI920mfPVYruIJESpBh6NKt66tPSSV2C6HP/qRTN/6tAwXqBL
 rzwv2t8qu5+ic2Ae5/wk
 =b4Tn
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-v3.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control changes from Linus Walleij:
 "This is the bulk of pin control changes for the v3.18 development
  series:

   - New drivers for the Freescale i.MX21, Qualcomm APQ8084 pin
     controllers.

   - Incremental new features on the Rockchip, atlas 6, OMAP, AM437x,
     APQ8064, prima2, AT91, Tegra, i.MX, Berlin and Nomadik.

   - Push Freescale drivers down into their own subdirectory.

   - Assorted sprays of syntax and semantic fixes"

* tag 'pinctrl-v3.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (48 commits)
  pinctrl: specify bindings for pins and groups
  pinctrl: nomadik: improve GPIO debug prints
  pinctrl: abx500: refactor DT parser to take two paths
  pinctrl: abx500: use helpers for map allocation/free
  pinctrl: alter device tree bindings for functions
  pinctrl: nomadik: refactor DT parser to take two paths
  pinctrl: nomadik: use utils map free function
  pinctrl: nomadik: use util function to reserve maps
  pinctrl: qcom: use restart_notifier mechanism for ps_hold
  pinctrl: sh-pfc: sh73a0: Remove unnecessary SoC data allocation
  pinctrl: berlin: fix the dt_free_map function
  pinctrl: at91: disable PD or PU before enabling PU or PD
  pinctrl: st: remove gpiochip in failure cases
  pinctrl: at91: Fix error handling while doing gpiochio_irqchip_add
  pinctrl: at91: Fix failure path in at91_gpio_probe path
  pinctrl: lantiq: Release gpiochip resources in fail case
  pinctrl: imx: detect uninitialized pins
  pinctrl: tegra: Add MIPI pad control
  pinctrl: at91: Switch to using managed clk_get
  pinctrl: adi2: Remove duplicate gpiochip_remove_pin_ranges
  ...
2014-10-07 20:56:28 -04:00
Wenyou Yang 3d78427397 pinctrl: at91: disable PD or PU before enabling PU or PD
Disable Pull-Down or Pull-Up property before enabling Pull-Up or
Pull-Down, because the pin's Pull-Up and Pull-Down property is
mutually exclusive.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-09-23 16:59:55 +02:00
Pramod Gurav 834e167864 pinctrl: at91: Fix error handling while doing gpiochio_irqchip_add
This patch removes a call to panic function when gpiochio_irqchip_add
fails and just returns the error to the calling function.
Same return value is used to handle the error case and adds a lable
to release resources on error.
The error message has been improved to indicate failure to add irqchip
to gpiochip.

This also changes first argument to function at91_gpio_of_irq_setup from
struct device_node to struct platform_device. Because The device_node
argument was anyway not being used. Passed pdev so that on failure dev_err
can use &pdev->dev and log can be associated with proper device.

CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-09-23 16:46:47 +02:00
Pramod Gurav 70e4197420 pinctrl: at91: Fix failure path in at91_gpio_probe path
This fixes the whole error handling in probe function by capturing and
returning error values on kernel function like clk_prepare,
clk_enable, gpiochip_add etc.

CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-09-23 16:45:22 +02:00
Pramod Gurav 02b837ffe0 pinctrl: at91: Switch to using managed clk_get
This patch switches to using managed version of clk_get and hence
removes clk_put from failure path.

CC: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-09-05 10:34:03 +02:00
Marek Roszko 4334ac2db2 pinctrl: at91: add drive strength configuration
The SAMA5 and SAM9x5 series both have drive strength
options for the PIOs. This patch adds the ability to set
one of three hardware options for drive strengths of low,
medium or high for the each pin. The actual current output
of the chip based on the setting is defined in the datasheets
and varies per pins separate from banks and with supply
voltage.

This patch adds three new dt-bindings that allow setting the
strength when configuring pins. By default, no change will
be made to the drive strength of a pin from its reset value.
Due to the difference between the register addresses of the
SAMA5 and SAM9x5 series, a new sama5d3-pinctrl id was added.

Signed-off-by: Marek Roszko <mark.roszko@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-09-05 10:32:06 +02:00
Linus Walleij 03e9f0cac5 pinctrl: clean up after enable refactoring
commit 2243a87d90
"pinctrl: avoid duplicated calling enable_pinmux_setting for a pin"
removed the .disable callback from the struct pinmux_ops,
making the .enable() callback the only remaining callback.

However .enable() is a bad name as it seems to imply that a
muxing can also be disabled. Rename the callback to .set_mux()
and also take this opportunity to clean out any remaining
mentions of .disable() from the documentation.

Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Fan Wu <fwu@marvell.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-09-04 10:05:07 +02:00
Hans Wennborg 4b6fe45a79 pinctrl: pinctrl-at91.c: fix decimal printf format specifiers prefixed with 0x
The prefix suggests the number should be printed in hex, so use
the %x specifier to do that.

Found by using regex suggested by Joe Perches.

Signed-off-by: Hans Wennborg <hans@hanshq.net>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-08-17 09:15:44 -05:00
Rickard Strandqvist 445d20260b pinctrl: pinctrl-at91.c: Cleaning up values that are never used
Remove variable that are never used

This was found using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-07-11 14:08:33 +02:00
Rickard Strandqvist ca7162add9 pinctrl: pinctrl-at91.c: Cleaning up if unsigned is less than zero
Remove checking if a unsigned is less than zero

This was found using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-07-11 14:08:32 +02:00
Fan Wu 2243a87d90 pinctrl: avoid duplicated calling enable_pinmux_setting for a pin
What the patch does:
1. Call pinmux_disable_setting ahead of pinmux_enable_setting
  each time pinctrl_select_state is called
2. Remove the HW disable operation in pinmux_disable_setting function.
3. Remove the disable ops in struct pinmux_ops
4. Remove all the disable ops users in current code base.

Notes:
1. Great thanks for the suggestion from Linus, Tony Lindgren and
   Stephen Warren and Everyone that shared comments on this patch.
2. The patch also includes comment fixes from Stephen Warren.

The reason why we do this:
1. To avoid duplicated calling of the enable_setting operation
   without disabling operation inbetween which will let the pin
   descriptor desc->mux_usecount increase monotonously.
2. The HW pin disable operation is not useful for any of the
   existing platforms.
   And this can be used to avoid the HW glitch after using the
   item #1 modification.

In the following case, the issue can be reproduced:
1. There is a driver that need to switch pin state dynamically,
   e.g. between "sleep" and "default" state
2. The pin setting configuration in a DTS node may be like this:

  component a {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&a_grp_setting &c_grp_setting>;
	pinctrl-1 = <&b_grp_setting &c_grp_setting>;
  }

  The "c_grp_setting" config node is totally identical, maybe like
  following one:

  c_grp_setting: c_grp_setting {
	pinctrl-single,pins = <GPIO48 AF6>;
  }

3. When switching the pin state in the following official pinctrl
   sequence:
	pin = pinctrl_get();
	state = pinctrl_lookup_state(wanted_state);
	pinctrl_select_state(state);
	pinctrl_put();

Test Result:
1. The switch is completed as expected, that is: the device's
   pin configuration is changed according to the description in the
   "wanted_state" group setting
2. The "desc->mux_usecount" of the corresponding pins in "c_group"
   is increased without being decreased, because the "desc" is for
   each physical pin while the setting is for each setting node
   in the DTS.
   Thus, if the "c_grp_setting" in pinctrl-0 is not disabled ahead
   of enabling "c_grp_setting" in pinctrl-1, the desc->mux_usecount
   will keep increasing without any chance to be decreased.

According to the comments in the original code, only the setting,
in old state but not in new state, will be "disabled" (calling
pinmux_disable_setting), which is correct logic but not intact. We
still need consider case that the setting is in both old state
and new state. We can do this in the following two ways:

1. Avoid to "enable"(calling pinmux_enable_setting) the "same pin
   setting" repeatedly
2. "Disable"(calling pinmux_disable_setting) the "same pin setting",
   actually two setting instances, ahead of enabling them.

Analysis:
1. The solution #2 is better because it can avoid too much
   iteration.
2. If we disable all of the settings in the old state and one of
   the setting(s) exist in the new state, the pins mux function
   change may happen when some SoC vendors defined the
   "pinctrl-single,function-off"
   in their DTS file.
   old_setting => disabled_setting => new_setting.
3. In the pinmux framework, when a pin state is switched, the
   setting in the old state should be marked as "disabled".

Conclusion:
1. To Remove the HW disabling operation to above the glitch mentioned
   above.
2. Handle the issue mentioned above by disabling all of the settings
   in old state and then enable the all of the settings in new state.

Signed-off-by: Fan Wu <fwu@marvell.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-07-11 14:08:26 +02:00
Alexander Stein cccb0c3e6a pinctrl/at91: Fix lockup when IRQ on PIOC and PIOD occurs
With commit 80cc3732 (pinctrl/at91: convert driver to use gpiolib irqchip)
gpiochip_set_chained_irqchip is called for PIOC, PIOD and PIOE. The
associated GPIO chip for the IRQ chip is overwritten each time, because
they share the same hard IRQ line.
Thus if an IRQ occurs on PIOC or PIOD, gpio_irq_handler will only check on
PIOE (the assigned GPIO chip) where no event occured. Thus the IRQ will
not be cleared, retriggering the ISR.
Fix that (like done before) by only set the PIOC GPIO chip to the IRQ chip
and walk the list in the irq handler.

Signed-off-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-27 11:13:10 +02:00
Alexander Stein 47f227163a pinctrl/at91: Fix mask creation in at91_gpio_dbg_show
pin_to_mask expects a bank pin number. So do not add the chip base.

Without that patch cat /sys/kernel/debug/gpio looks like that:
GPIOs 0-31, platform/fffff200.gpio, fffff200.gpio:
[spi32766.0] GPIOfffff200.gpio5: [gpio] set
[ads7846_pendown] GPIOfffff200.gpio15: [gpio] set
[ohci_vbus] GPIOfffff200.gpio21: [gpio] set
[ohci_vbus] GPIOfffff200.gpio24: [gpio] set
[button1] GPIOfffff200.gpio28: [gpio] clear
[button2] GPIOfffff200.gpio29: [gpio] clear

GPIOs 32-63, platform/fffff400.gpio, fffff400.gpio:
[sda] GPIOfffff400.gpio4: [periph A]
[scl] GPIOfffff400.gpio5: [periph A]
[spi32766.3] GPIOfffff400.gpio11: [periph A]
[error] GPIOfffff400.gpio22: [periph A]
[run] GPIOfffff400.gpio23: [periph A]

GPIOs 64-95, platform/fffff600.gpio, fffff600.gpio:
[reset_pin] GPIOfffff600.gpio29: [periph A]

GPIOs 96-127, platform/fffff800.gpio, fffff800.gpio:
[led1] GPIOfffff800.gpio5: [periph A]
[led2] GPIOfffff800.gpio6: [periph A]
[led3] GPIOfffff800.gpio7: [periph A]
[led4] GPIOfffff800.gpio8: [periph A]

GPIOs 128-159, platform/fffffa00.gpio, fffffa00.gpio:
[button3] GPIOfffffa00.gpio10: [periph A]
[button4] GPIOfffffa00.gpio12: [periph A]

Note that every bank despite bank 0 only shows "periph A" which are
obviously used as GPIOs.

Signed-off-by: Alexander Stein <alexanders83@web.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 23:45:57 +02:00
Alexander Stein 80cc37329d pinctrl/at91: convert driver to use gpiolib irqchip
This converts the AT91 pin control driver to register its
chained irq handler and irqchip using the helpers in the
gpiolib core.

Signed-off-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-22 23:37:21 +02:00
Richard Genoud 8af584b868 pinctrl: at91: implement get_direction
This is needed for gpiod_get_direction().
Otherwise, it returns -EINVAL.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-25 10:49:15 +01:00
Jean-Jacques Hiblot 94e692071a pinctrl: at91: use gpiolib API to mark a GPIO used as an IRQ
When an IRQ is started on a GPIO line, mark this GPIO as IRQ in
the gpiolib so we can keep track of the usage centrally.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-10 10:13:08 +01:00
Nicolas Ferre b0dcfd8732 pinctrl: at91: use locked variant of irq_set_handler
When setting the gpio irq type, use the __irq_set_handler_locked()
variant instead of the irq_set_handler() to prevent false
spinlock recursion warning.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable <stable@vger.kernel.org> # v3.12
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-03 09:07:30 +01:00
Linus Torvalds a547df99aa Bulk pin control changes for the v3.14 cycle:
- New driver for the Qualcomm TLMM pin controller and its
   msm8x74 subdriver.
 
 - New driver for the Broadcom Capri BCM281xx SoC.
 
 - New subdriver for the imx25 pin controller.
 
 - New subdriver for the Tegra124 pin controller.
 
 - Lock GPIO lines as IRQs for select combined pin control and
   GPIO drivers for baytrail and sirf.
 
 - Some semi-big refactorings and extenstions to the sirf
   driver.
 
 - Lots of patching, cleanup and fixing in the Renesas "PFC"
   driver and associated subdrivers as usual. It is settling
   down a little bit now it seems.
 
 - Minor fixes and incremental updates here and there as usual.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJS3mvwAAoJEEEQszewGV1zc3wP/RYjFaS4WGXX/QnvXGlTwpyb
 3IIQM4l507ds97ipjip9OO31od8HqkWw4lREwKvRdtqItZJiSzG3oYwn+ro+X2E5
 tif0kDxae1tFWieVjA2+zuvjZ76ve8FsVUuUTY7qdd4jdD3OO6P9BgDT0QqwN1Uh
 QToszugQzeOqJARn/DKHg2hkBlg0NorasskCvy6qALbXkWIpLm0U4di2HmGgvV2e
 5YqRCA8uAf48fE6Q93PQNYQU7Zux1Lyr59y0Wl/pnfKKvi1qG2KPnHDJhMmUbxJk
 tWi2VcB1Msrhccv+o0onNMfILG0xInmss3NELTTJJEhSjDvaETkng9fCbw4XDaKY
 KLQ7aRjodbGlvdAONqzZR6e0Ra+piGKDdm94+hvOn0BS1SVfjVA7d6AaeTdR6g+6
 GD+EVqzczAtla8g1xwNKp69SDN1I3yddMQzjQProSE/eGaQYN6aJW+2hDpD3SoOD
 uezFyktzehCIJ5WOIcth8RapN7p33w7bbDOuGVESCesF4NcaUqF+19ukAN9kzVhd
 6oksU1RsxLUdBg/zO7Dwyuhx0XzOuBvrP3EADU37MpnTyCGz4ko4vH0T7JHaA5Oe
 lN9otYBZT0p/kYUEdINjF3foc7f2yc8adC5kDUB9p/zdzyPIwCijGGD6shJGr11/
 7SQ8DvyJZeq3lSNs8+RG
 =ol2E
 -----END PGP SIGNATURE-----

Merge tag 'pinctrl-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull bulk pin control changes from Linus Walleij:
 "This has been queued and tested for a while.  Lots of action here,
  like in the GPIO tree, embedded stuff like this is really hot now it
  seems.  Details in the signed tag.  I'm especially happy about the
  Qualcomm driver as it is used in such a huge subset of mobile handsets
  out there, and these platforms in general need better upstream support

   - New driver for the Qualcomm TLMM pin controller and its msm8x74
     subdriver.

   - New driver for the Broadcom Capri BCM281xx SoC.

   - New subdriver for the imx25 pin controller.

   - New subdriver for the Tegra124 pin controller.

   - Lock GPIO lines as IRQs for select combined pin control and GPIO
     drivers for baytrail and sirf.

   - Some semi-big refactorings and extenstions to the sirf driver.

   - Lots of patching, cleanup and fixing in the Renesas "PFC" driver
     and associated subdrivers as usual.  It is settling down a little
     bit now it seems.

   - Minor fixes and incremental updates here and there as usual"

* tag 'pinctrl-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits)
  pinctrl: sunxi: Honor GPIO output initial vaules
  pinctrl: capri: add dependency on OF
  ARM: bcm11351: Enable pinctrl for Broadcom Capri SoCs
  ARM: pinctrl: Add Broadcom Capri pinctrl driver
  pinctrl: Add pinctrl binding for Broadcom Capri SoCs
  pinctrl: Add void * to pinctrl_pin_desc
  pinctrl: st: Fix a typo in probe
  pinctrl: Fix some typos and grammar issues in the documentation
  pinctrl: sirf: lock IRQs when starting them
  pinctrl: sirf: put gpio interrupt pin into input status automatically
  pinctrl: sirf: use only one irq_domain for the whole device node
  pinctrl: single: fix infinite loop caused by bad mask
  pinctrl: single: fix pcs_disable with bits_per_mux
  pinctrl: single: fix DT bindings documentation
  pinctrl: as3722: Set pin to output mode for some function
  pinctrl: sirf: add pin group for USP0 with only RX or TX frame sync
  pinctrl: sirf: fix the pins of sdmmc5 connected with TriG
  pinctrl: sirf: add lost usp1_uart_nostreamctrl group for atlas6
  pinctrl: sunxi: Add Allwinner A20 clock output pin functions
  pinctrl/lantiq: fix typo
  ...
2014-01-21 10:14:10 -08:00
Boris BREZILLON 37ef1d9243 pinctrl: at91: replace clk_prepare + clk_enable by clk_prepare_enable
Replace the clk_prepare and clk_enable calls by a single
clk_prepare_enable call.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-16 14:22:57 +01:00
Boris BREZILLON 795f9953ea pinctrl: at91: fix clk_unprepare and clk_disable order
clk_unprepare shall be called before clk_disable.
Fix the issue by replacing the clk_unprepare and clk_disable calls by a
single clk_disable_unprepare call.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-16 14:21:43 +01:00
Alexandre Belloni 4d9b8a8e46 pinctrl: at91: implement at91_pinconf_dbg_show
This allows to get the pin configuration by using debugfs. On my system:
 # cat /sys/kernel/debug/pinctrl/pinctrl.3/pinconf-pins

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-13 10:34:07 +01:00
Alexandre Belloni 1292e69366 pinctrl: at91: initialize config parameter to 0
When passing a not initialized config parameter, at91_pinconf_get() would return
a bogus value. Fix that by initializing it to zero before using it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12 15:43:36 +01:00
Alexandre Belloni c2eb9e7f02 pinctrl: at91: correct a few typos
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-12 15:41:35 +01:00
Linus Walleij 9fb1f39eb2 gpio/pinctrl: make gpio_chip members typed boolean
This switches the two members of struct gpio_chip that were
defined as unsigned foo:1 to bool, because that is indeed what
they are. Switch all users in the gpio and pinctrl subsystems
to assign these values with true/false instead of 0/1. The
users outside these subsystems will survive since true/false
is 1/0, atleast we set some kind of more strict typing example.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-04 14:42:46 +01:00
Linus Walleij 94daf85e3c pinctrl: at91: copy define to driver
The #define for the maximum number of GPIO blocks was retrieved
into pinctrl-at91.c by implicit inclusion of <mach/gpio.h>
from <linux/gpio.h> creating a dependency on machine-local
<mach/gpio.h>. Break the depenency by copying this single
define into the driver.

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-11-05 10:54:27 +01:00
Alexandre Belloni 61e310a1ed pinctrl: at91: correct a few typos
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-23 11:07:21 +02:00
Sachin Kamat 606fca94f7 pinctrl: remove redundant of_match_ptr
The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

This is a squash commit of:
pinctrl: at91: Remove redundant of_match_ptr
pinctrl: exynos5440: Remove redundant of_match_ptr
pinctrl: imx35: Remove redundant of_match_ptr
pinctrl: imx51: Remove redundant of_match_ptr
pinctrl: imx53: Remove redundant of_match_ptr
pinctrl: imx6dl: Remove redundant of_match_ptr
pinctrl: imx6q: Remove redundant of_match_ptr
pinctrl: samsung: Remove redundant of_match_ptr
pinctrl: vf610: Remove redundant of_match_ptr
pinctrl: imx6sl: Remove redundant of_match_ptr
pinctrl: plgpio: Remove redundant of_match_ptr

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-10-08 10:02:25 +02:00
Boris BREZILLON c8dba02e7d pinctrl: at91: fix sam9x5 debounce/deglitch functions
Replace at91_mux_get_deglitch with at91_mux_pio3_get_deglitch when using
sam9x5 (pio3) IP.
at91_mux_get_deglitch only test the activation of the "Input Filter" which
may be overloaded by the activation of the "Input Filter Slow Clock" to use
the input filter as a debounce filter instead of a deglitch filter.

Fix at91_mux_pio3_get_debounce to test the activation of the Input Filter
before testing the activation of the debounce filter (Input Filter Slow
Clock depends on Input Filter).

Fix at91_mux_pio3_set_debounce function to avoid disabling the deglitch
filter ("Input Filter") when debounce filter is disabled.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-27 14:11:34 +02:00
Boris BREZILLON 77966ad7b6 pinctrl: at91: fix typos
Fix AT91_PINCTRL_DEBOUNCE_VAL dt macro typo.
Fix at91_pinctrl_mux_ops callback typos.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-09-27 14:10:09 +02:00
Boris BREZILLON 05d3534a32 pinctrl: at91: fix get_pullup/down function return
In PIO_PUSR and PIO_PPDSR register if a given bit is set 1 this means the
pullup/down for this pin (pin is represented as a bit position) is
disabled.

Cc: stable <stable@vger.kernel.org> # 3.8+
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 21:21:42 +02:00
Sherman Yin 03b054e969 pinctrl: Pass all configs to driver on pin_config_set()
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 <syin@broadcom.com>
Reviewed-by: Christian Daudt <csd@broadcom.com>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-28 13:34:41 +02:00
Boris BREZILLON 99fce0295e pinctrl: at91: choose appropriate handler for level interrupts
The current implementation handle both edge and level interrupts with the
'handle_simple_irq' handler.

Level interrupts are active as long as the pin stays at the configured
level (low or high). In this case we have to use 'handle_level_irq' which
mask the interrupt until the handle has treated it.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Tested-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-08-07 22:30:16 +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
Linus Torvalds a7726350e0 ARM: arm-soc cleanup for 3.10
Here is a collection of cleanup patches. Among the pieces that stand out are:
 
 - The deletion of h720x platforms
 - Split of at91 non-dt platforms to their own Kconfig file to keep them separate
 - General cleanups and refactoring of i.MX and MXS platforms
 - Some restructuring of clock tables for OMAP
 - Convertion of PMC driver for Tegra to dt-only
 - Some renames of sunxi -> sun4i (Allwinner A10)
 - ... plus a bunch of other stuff that I haven't mentioned
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJRggUqAAoJEIwa5zzehBx3HjEQAJwp7heRs/HwTDzmzcyHkRMV
 usbaa9dHBuAZ0DzsWjLK99xEn8VWD9TvbeP6hN5gNhxko06UVza3o8PI2iV1ztMB
 9K3u2+LS5on/5cOxnsU1va16h5hBZ0ZIgNx5NY+PZ5mBY6v1U3qTjljPP62iXp63
 w+sdXeZDe/c5JvuoDRbY0OBR++3Jp8cQg7KbU78jWz3r5D2rC1zwhkf2audcRY6b
 jIWTj9M8CHynh/D6OzKqDcOYorBHNSRj0YbiWS2nnMfm+0V8nya00EPRpCPRiBUb
 sobSy1CI9Qxiih3bOf6QCfzCRzJ5hbtE0zlI8g3bqtEZ1yOsE949HrKapWHJJdIU
 JNTXrxXORAnaRhbzvSPNpp/iJBSDQRsfEETgv5BuHg/4lzTQfzElySbcgb4EeoHr
 7Zt8ZR2/Du+u76qIPqs19ES3Wx+nOEOfSDAgZmlfPvlwmlGDYvqAXoeJ006VXnhG
 JacLuD/cFnJ1w00Bcl48ZXMIsVkoRqjvsCG5q688HGXMM1lU8DfgUpQY6OCWAbdu
 kFnBinJZk+HbE8FGS8O0BoQ+oiC0YIr2XhATL66PGHq7bLHb5ycwvZ7mrfC0AN9j
 M9hqTFednwfo9wF8vSj5nMsxXwP8/mky4ECGoFvLsMYDosunrNVnAHtTgDSE+ZgO
 6kQJ1P8jBBXn2LyjF88W
 =xCAx
 -----END PGP SIGNATURE-----

Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanup from Olof Johansson:
 "Here is a collection of cleanup patches.  Among the pieces that stand
  out are:

   - The deletion of h720x platforms
   - Split of at91 non-dt platforms to their own Kconfig file to keep
     them separate
   - General cleanups and refactoring of i.MX and MXS platforms
   - Some restructuring of clock tables for OMAP
   - Convertion of PMC driver for Tegra to dt-only
   - Some renames of sunxi -> sun4i (Allwinner A10)
   - ... plus a bunch of other stuff that I haven't mentioned"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits)
  ARM: i.MX: remove unused ARCH_* configs
  ARM i.MX53: remove platform ahci support
  ARM: sunxi: Rework the restart code
  irqchip: sunxi: Rename sunxi to sun4i
  irqchip: sunxi: Make use of the IRQCHIP_DECLARE macro
  clocksource: sunxi: Rename sunxi to sun4i
  clocksource: sunxi: make use of CLKSRC_OF
  clocksource: sunxi: Cleanup the timer code
  ARM: at91: remove trailing semicolon from macros
  ARM: at91/setup: fix trivial typos
  ARM: EXYNOS: remove "config EXYNOS_DEV_DRM"
  ARM: EXYNOS: change the name of USB ohci header
  ARM: SAMSUNG: Remove unnecessary code for dma
  ARM: S3C24XX: Remove unused GPIO drive strength register definitions
  ARM: OMAP4+: PM: Restore CPU power state to ON with clockdomain force wakeup method
  ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2412
  ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2410
  ARM: S3C24XX: Removed unneeded dependency on ARCH_S3C24XX for boards
  ARM: SAMSUNG: Fix typo "CONFIG_SAMSUNG_DEV_RTC"
  ARM: S5P64X0: Fix typo "CONFIG_S5P64X0_SETUP_SDHCI"
  ...
2013-05-02 09:03:55 -07:00
Arnd Bergmann 44c0d23775 Linux 3.9-rc5
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQEcBAABAgAGBQJRWLTrAAoJEHm+PkMAQRiGe8oH/iMy48mecVWvxVZn74Tx3Cef
 xmW/PnAIj28EhSPqK49N/Ow6AfQToFKf7AP0ge20KAf5teTq95AY+tH74DAANt8F
 BjKXXTZiR5xwBvRkq7CR5wDcCvEcBAAz8fgTEd6SEDB2d2VXFf5eKdKUqt1avTCh
 Z6Hup5kuwX+ddtwY2DCBXtp2n6fL0Rm5yLzY1A3OOBye1E7VyLTF7M5BR603Q44P
 4kRLxn8+R7jy3hTuZIhAeoS8TKUoBwVk7DmKxEzrhTHZVOmvwE9lEHybRnIyOpd/
 k1JnbRbiPsLsCVFOn10SQkGDAIk00lro3tuWP2C1ljERiD/OOh5Ui9nXYAhMkbI=
 =q15K
 -----END PGP SIGNATURE-----

Merge tag 'v3.9-rc5' into next/cleanup

This is a dependency for the mxs/cleanup branch.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-04-09 15:29:43 +02:00
Linus Walleij 6a7b3e9704 Linux 3.9-rc5
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iQEcBAABAgAGBQJRWLTrAAoJEHm+PkMAQRiGe8oH/iMy48mecVWvxVZn74Tx3Cef
 xmW/PnAIj28EhSPqK49N/Ow6AfQToFKf7AP0ge20KAf5teTq95AY+tH74DAANt8F
 BjKXXTZiR5xwBvRkq7CR5wDcCvEcBAAz8fgTEd6SEDB2d2VXFf5eKdKUqt1avTCh
 Z6Hup5kuwX+ddtwY2DCBXtp2n6fL0Rm5yLzY1A3OOBye1E7VyLTF7M5BR603Q44P
 4kRLxn8+R7jy3hTuZIhAeoS8TKUoBwVk7DmKxEzrhTHZVOmvwE9lEHybRnIyOpd/
 k1JnbRbiPsLsCVFOn10SQkGDAIk00lro3tuWP2C1ljERiD/OOh5Ui9nXYAhMkbI=
 =q15K
 -----END PGP SIGNATURE-----

Merge tag 'v3.9-rc5' into devel

Linux 3.9-rc5

Conflicts:
	drivers/pinctrl/pinconf.c
2013-04-03 22:18:36 +02:00
Sachin Kamat 3c93600d3e pinctrl: at91: Fix checkpatch errors
Fixes the following types of checkpatch errors:
ERROR: "foo * bar" should be "foo *bar"
ERROR: "foo* bar" should be "foo *bar"
ERROR: space required before the open parenthesis '('
ERROR: "(foo*)" should be "(foo *)"
ERROR: space required after that ',' (ctx:WxV)
ERROR: "(foo*const*)" should be "(foo *const*)"
ERROR: space required before that '*' (ctx:VxB)

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27 22:47:12 +01:00
Sachin Kamat 1164d73a98 pinctrl: at91: Remove duplicate const
const declared twice. Fixes the following sparse warning:
drivers/pinctrl/pinctrl-at91.c:815:21: warning: duplicate const
drivers/pinctrl/pinctrl-at91.c:849:21: warning: duplicate const

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27 22:46:18 +01:00
Catalin Marinas de88cbb7b2 arm: Move chained_irq_(enter|exit) to a generic file
These functions have been introduced by commit 10a8c383 (irq: introduce
entry and exit functions for chained handlers) in asm/mach/irq.h. This
patch moves them to linux/irqchip/chained_irq.h so that generic irqchip
drivers do not rely on architecture specific header files.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
2013-03-26 16:11:43 +00:00
Ludovic Desroches 647f8d94a4 ARM: at91: add gpio suspend/resume support when using pinctrl
gpio suspend/resume and wakeup sources where not managed when using pinctrl so
it was impossible to wake up the system with a gpio.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-03-14 09:37:42 +01:00
Laurent Pinchart 022ab148d2 pinctrl: Declare operation structures as const
The pinconf, pinctrl and pinmux operation structures hold function
pointers that are never modified. Declare them as const.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-07 05:27:29 +01:00
Thierry Reding 9e0c1fb29a pinctrl: Convert to devm_ioremap_resource()
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.

devm_ioremap_resource() provides its own error messages so all explicit
error messages can be removed from the failure code paths.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-22 11:41:57 -08:00
Linus Torvalds 49569646b2 Driver core __dev* removal patches
Here are the remaining __dev* removal patches against the 3.8-rc2 tree.
 All of these patches were previously sent to the subsystem maintainers,
 most of them were picked up and pushed to you, but there were a number
 that fell through the cracks, and new drivers were added during the
 merge window, so this series cleans up the rest of the instances of
 these markings.
 
 Third time's the charm...
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
 iEYEABECAAYFAlDmHOIACgkQMUfUDdst+ykTZgCePgK84Im3FFooEXJwaPbaf4ls
 lO4AoMEDoWK+BHWOsjQwFPOwFFPEN2Xh
 =6oAQ
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-3.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core __dev* removal patches - take 3 - from Greg Kroah-Hartman:
 "Here are the remaining __dev* removal patches against the 3.8-rc2
  tree.  All of these patches were previously sent to the subsystem
  maintainers, most of them were picked up and pushed to you, but there
  were a number that fell through the cracks, and new drivers were added
  during the merge window, so this series cleans up the rest of the
  instances of these markings.

  Third time's the charm...

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fixed up trivial conflict with the pinctrl pull in pinctrl-sirf.c.

* tag 'driver-core-3.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (54 commits)
  misc: remove __dev* attributes.
  include: remove __dev* attributes.
  Documentation: remove __dev* attributes.
  Drivers: misc: remove __dev* attributes.
  Drivers: block: remove __dev* attributes.
  Drivers: bcma: remove __dev* attributes.
  Drivers: char: remove __dev* attributes.
  Drivers: clocksource: remove __dev* attributes.
  Drivers: ssb: remove __dev* attributes.
  Drivers: dma: remove __dev* attributes.
  Drivers: gpu: remove __dev* attributes.
  Drivers: infinband: remove __dev* attributes.
  Drivers: memory: remove __dev* attributes.
  Drivers: mmc: remove __dev* attributes.
  Drivers: iommu: remove __dev* attributes.
  Drivers: power: remove __dev* attributes.
  Drivers: message: remove __dev* attributes.
  Drivers: macintosh: remove __dev* attributes.
  Drivers: mfd: remove __dev* attributes.
  pstore: remove __dev* attributes.
  ...
2013-01-03 16:17:50 -08:00
Greg Kroah-Hartman 150632b09a Drivers: pinctrl: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Barry Song <baohua.song@csr.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:02 -08:00
Julia Lawall c62b2b3448 drivers/pinctrl/pinctrl-at91.c: convert kfree to devm_kfree
The function at91_dt_node_to_map is ultimately called by the function
pinctrl_get, which is an exported function.  Since it is possible that this
function is not called from within a probe function, for safety, the kfree
is converted to a devm_kfree, to both free the data and remove it from the
device in a failure situation.

Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-12-26 01:59:51 +01:00
Linus Walleij 5f007db68c Merge branch 'at91' into devel 2012-11-21 16:06:33 +01:00
Jean-Christophe PLAGNIOL-VILLARD 7ebd7a3ae0 pinctrl: at91 add deglitch, debounce, pull down and schmitt trigger mux option support
add :
 set_deglitch: enable/disable deglitch
 set_debounce: enable/disable debounce
 set_pulldown: enable/disable pulldown
 disable_schmitt_trig: disable schmitt trigger

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-11-19 06:35:55 +08:00
Jean-Christophe PLAGNIOL-VILLARD 32b01a366e pinctrl: at91: provide gpio names
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-11-19 06:35:37 +08:00
Axel Lin 6bb0700bfe pinctrl: Staticize pinconf_ops
They are not referenced outside respective driver.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Simon Arlott <simon@fire.lp0.eu>
Cc: John Crispin <blogic@openwrt.org>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-11 19:35:38 +01:00
Axel Lin f6f94f6660 pinctrl: at91: Staticize non-exported symbols
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-05 14:30:45 +01:00
Wei Yongjun a7e35b9c32 pinctrl/at91: remove unused variable in at91_dt_node_to_map()
The variable pin is initialized but never used
otherwise, so remove the unused variable.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-28 20:34:14 +01:00
Wei Yongjun 05daa16a86 pinctrl/at91: using for_each_set_bit to simplify the code
Using for_each_set_bit() to simplify the code.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-28 20:34:09 +01:00
Wei Yongjun 11aabdcd74 pinctrl/at91: remove duplicated include from pinctrl-at91.c
Remove duplicated include.

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-28 20:34:02 +01:00
Jean-Christophe PLAGNIOL-VILLARD dffa91230f pinctrl/: at91: fix warnings
/opt/work/linux-2.6/drivers/pinctrl/pinctrl-at91.c: In function 'at91_pinctrl_probe_dt':
/opt/work/linux-2.6/drivers/pinctrl/pinctrl-at91.c:952:12: warning: assignment discards qualifiers from pointer target type
/opt/work/linux-2.6/drivers/pinctrl/pinctrl-at91.c: In function 'at91_gpio_probe':
/opt/work/linux-2.6/drivers/pinctrl/pinctrl-at91.c:1517:17: warning: assignment discards qualifiers from pointer target type

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-28 20:02:56 +01:00
Jean-Christophe PLAGNIOL-VILLARD a728c7cdd0 gpio/at91: auto request and configure the pio as input when the interrupt is used via DT
If we do this

	interrupt-parent = <&pioA>;
	interrupts = <7 0x0>;

The current core map the irq correctly but the gpio is not configured as input.
The pinctrl configure the pin as gpio with the correct mux parameter but is
not responsible to configure it as input.

So do it during the xlate

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-24 14:01:15 +02:00
Jean-Christophe PLAGNIOL-VILLARD 525fae2131 pinctrl: at91: fix typo on PULL_UP
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-10-24 13:59:45 +02:00
Jean-Christophe PLAGNIOL-VILLARD 6732ae5cb4 ARM: at91: add pinctrl support
This is also include the gpio controller as the IP share both.
Each soc will have to describe the SoC limitation and pin configuration via
DT.

This will allow to do not need to touch the C code when adding new SoC if the
IP version is supported.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-10-13 09:21:43 +08:00