Commit Graph

2826 Commits

Author SHA1 Message Date
Markus Elfring
cea234e996 pinctrl: Adjust nine checks for null pointers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written …

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:25 +02:00
Markus Elfring
390e10464d pinctrl: Use seq_putc() in pinctrl_maps_show()
A single character (line break) should be put into a sequence.
Thus use the corresponding function "seq_putc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Markus Elfring
e8c5d759da pinctrl: Add spaces for better code readability
The script "checkpatch.pl" pointed information out like the following.

CHECK: spaces preferred around that '+' (ctx:VxV)

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Markus Elfring
e4d030509f pinctrl: Combine substrings for a message in pin_config_group_get()
The script "checkpatch.pl" pointed information out like the following.

WARNING: quoted string split across lines

Thus fix the affected source code place.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Markus Elfring
76ce37f05e pinctrl: Adjust five checks for null pointers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The script “checkpatch.pl” pointed information out like the following.

Comparison to NULL could be written !…

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Markus Elfring
de2eae26de pinctrl: Replace two seq_printf() calls by seq_puts() in pinconf_show_map()
Strings which did not contain data format specifications should be put
into a sequence. Thus use the corresponding function "seq_puts".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Shyam Sundar S K
add7bfceac pinctrl/amd: Update contact information for AMD pinctrl/amd
Updating the point of contact for AMD GPIO driver.

Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Cc: Ken Xue <Ken.Xue@amd.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Markus Elfring
47352a6375 pinctrl: Use seq_putc() in three functions
A single character (line break) should be put into a sequence.
Thus use the corresponding function "seq_putc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Gregory CLEMENT
2f22760539 pinctrl: armada-37xx: Add irqchip support
The Armada 37xx SoCs can handle interrupt through GPIO. However it can
only manage the edge ones.

The way the interrupt are managed is classical so we can use the generic
interrupt chip model.

The only unusual "feature" is that many interrupts are connected to the
parent interrupt controller. But we do not take advantage of this and use
the chained irq with all of them.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Masahiro Yamada
cdbbd26f48 pinctrl: rockchip: remove unneeded (void *) casts in of_match_table
of_device_id::data is an opaque pointer.  No explicit cast is needed.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:24 +02:00
Shawn Guo
cbff0c4d27 pinctrl: add ZTE ZX pinctrl driver support
The pin controller on ZTE ZX platforms is kinda of hybrid.  It consists
of a main controller and an auxiliary one.  For example, on ZX296718 SoC,
the main controller is TOP_PMM and the auxiliary one is AON_IOCFG.  Both
controllers work together to control pin multiplexing and configuration.

For most of pins, the pinmux function is controlled by main controller
only, and this type of pins are meant by term 'TOP pins'.  For other
pins, the pinmux is controlled by both main and auxiliary controllers,
as the available multiplexing functions for the pin spread in both
controllers.  This type of pins are called 'AON pins'.  Though pinmux
implementation is quite different, pinconf is same for both types of
pins.  Both are controlled by auxiliary controller, i.e. AON_IOCFG on
ZX296718.

The patch adds the ZTE ZX core pinctrl driver to support this hybrid
pin controller as well as ZX296718 SoC specific pin data.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:23 +02:00
Linus Torvalds
89c9fea3c8 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  tty: fix comment for __tty_alloc_driver()
  init/main: properly align the multi-line comment
  init/main: Fix double "the" in comment
  Fix dead URLs to ftp.kernel.org
  drivers: Clean up duplicated email address
  treewide: Fix typo in xml/driver-api/basics.xml
  tools/testing/selftests/powerpc: remove redundant CFLAGS in Makefile: "-Wall -O2 -Wall" -> "-O2 -Wall"
  selftests/timers: Spelling s/privledges/privileges/
  HID: picoLCD: Spelling s/REPORT_WRTIE_MEMORY/REPORT_WRITE_MEMORY/
  net: phy: dp83848: Fix Typo
  UBI: Fix typos
  Documentation: ftrace.txt: Correct nice value of 120 priority
  net: fec: Fix typo in error msg and comment
  treewide: Fix typos in printk
2017-05-02 19:09:35 -07:00
Linus Torvalds
68fed41e0f This is the bulk of pin control changes for the v4.12 cycle:
Core changes:
 
 - Add bi-directional and output-enable pin configurations to
   the generic bindings and generic pin controlling core.
 
 New drivers or subdrivers:
 
 - Armada 37xx SoC pin controller and GPIO support.
 
 - Axis ARTPEC-6 SoC pin controller support.
 
 - AllWinner A64 R_PIO controller support, and opening up the
   AllWinner sunxi driver for ARM64 use.
 
 - Rockchip RK3328 support.
 
 - Renesas R-Car H3 ES2.0 support.
 
 - STM32F469 support in the STM32 driver.
 
 - Aspeed G4 and G5 pin controller support.
 
 Improvements:
 
 - A whole slew of realtime improvements to drivers implementing
   irqchips: BCM, AMD, SiRF, sunxi, rockchip.
 
 - Switch meson driver to get the GPIO ranges from the device
   tree.
 
 - Input schmitt trigger support on the Rockchip driver.
 
 - Enable the sunxi (AllWinner) driver to also be used on ARM64
   silicon.
 
 - Name the Qualcomm QDF2xxx GPIO lines.
 
 - Support GMMR GPIO regions on the Intel Cherryview. This
   fixes a serialization problem on these platforms.
 
 - Pad retention support for the Samsung Exynos 5433.
 
 - Handle suspend-to-ram in the AT91-pio4 driver.
 
 - Pin configuration support in the Aspeed driver.
 
 Cleanups:
 
 - The final name of Rockchip RK1108 was RV1108 so rename the
   driver and variables to stay consistent.
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Merge tag 'pinctrl-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v4.12 cycle.

  The extra week before the merge window actually resulted in some of
  the type of fixes that usually arrive after the merge window already
  starting to trickle in from eager developers using -next, I'm
  impressed.

  I have recruited a Samsung subsubsystem maintainer (Krzysztof) to deal
  with the onset of Samsung patches. It works great.

  Apart from that it is a boring round, just incremental updates and
  fixes all over the place, no serious core changes or anything exciting
  like that. The most pleasing to see is Julia Cartwrights work to audit
  the irqchip-providing drivers for realtime locking compliance. It's
  one of those "I should really get around to looking into that" things
  that have been on my TODO list since forever.

  Summary:

  Core changes:

   - add bi-directional and output-enable pin configurations to the
     generic bindings and generic pin controlling core.

  New drivers or subdrivers:

   - Armada 37xx SoC pin controller and GPIO support.

   - Axis ARTPEC-6 SoC pin controller support.

   - AllWinner A64 R_PIO controller support, and opening up the
     AllWinner sunxi driver for ARM64 use.

   - Rockchip RK3328 support.

   - Renesas R-Car H3 ES2.0 support.

   - STM32F469 support in the STM32 driver.

   - Aspeed G4 and G5 pin controller support.

  Improvements:

   - a whole slew of realtime improvements to drivers implementing
     irqchips: BCM, AMD, SiRF, sunxi, rockchip.

   - switch meson driver to get the GPIO ranges from the device tree.

   - input schmitt trigger support on the Rockchip driver.

   - enable the sunxi (AllWinner) driver to also be used on ARM64
     silicon.

   - name the Qualcomm QDF2xxx GPIO lines.

   - support GMMR GPIO regions on the Intel Cherryview. This fixes a
     serialization problem on these platforms.

   - pad retention support for the Samsung Exynos 5433.

   - handle suspend-to-ram in the AT91-pio4 driver.

   - pin configuration support in the Aspeed driver.

  Cleanups:

   - the final name of Rockchip RK1108 was RV1108 so rename the driver
     and variables to stay consistent"

* tag 'pinctrl-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (80 commits)
  pinctrl: mediatek: Add missing pinctrl bindings for mt7623
  pinctrl: artpec6: Fix return value check in artpec6_pmx_probe()
  pinctrl: artpec6: Remove .owner field for driver
  pinctrl: tegra: xusb: Silence sparse warnings
  ARM: at91/at91-pinctrl documentation: fix spelling mistake: "contoller" -> "controller"
  pinctrl: make artpec6 explicitly non-modular
  pinctrl: aspeed: g5: Add pinconf support
  pinctrl: aspeed: g4: Add pinconf support
  pinctrl: aspeed: Add core pinconf support
  pinctrl: aspeed: Document pinconf in devicetree bindings
  pinctrl: Add st,stm32f469-pinctrl compatible to stm32-pinctrl
  pinctrl: stm32: Add STM32F469 MCU support
  Documentation: dt: Remove ngpios from stm32-pinctrl binding
  pinctrl: stm32: replace device_initcall() with arch_initcall()
  pinctrl: stm32: add possibility to use gpio-ranges to declare bank range
  pinctrl: armada-37xx: Add gpio support
  pinctrl: armada-37xx: Add pin controller support for Armada 37xx
  pinctrl: dt-bindings: Add documentation for Armada 37xx pin controllers
  pinctrl: core: Make pinctrl_init_controller() static
  pinctrl: generic: Add bi-directional and output-enable
  ...
2017-05-02 17:59:33 -07:00
Wei Yongjun
c312c2c333 pinctrl: artpec6: Fix return value check in artpec6_pmx_probe()
In case of error, the function pinctrl_register() returns
ERR_PTR() not NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-28 09:40:52 +02:00
Wei Yongjun
a5bf5fc060 pinctrl: artpec6: Remove .owner field for driver
Remove .owner field if calls are used which set it automatically.

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-26 16:27:27 +02:00
Thierry Reding
02101cb3f5 pinctrl: tegra: xusb: Silence sparse warnings
Commit 53d2a715c2 ("phy: Add Tegra XUSB pad controller support") added
a new driver for the XUSB pad controller that implements a more flexible
devicetree binding. In order to preserve backwards compatibility the old
driver can be probed if the obsolete bindings are detected.

In order to hide the legacy code, these prototypes were defined in a
header private to the new driver. This has the disadvantage of making
the sparse code checker complain about the missing declarations when
compiling the old driver and suggesting to make the functions static.

Avoid these sparse warnings by adding local prototype declarations into
the compatibility driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 18:35:54 +02:00
Linus Walleij
e41f3207be pinctrl: sh-pfc: Updates for v4.12 (take three)
- Miscellaneous fixes for R-Car M2-W and R-Car E2.
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Merge tag 'sh-pfc-for-v4.12-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v4.12 (take three)

  - Miscellaneous fixes for R-Car M2-W and R-Car E2.
2017-04-24 18:34:49 +02:00
Paul Gortmaker
4726a2c371 pinctrl: make artpec6 explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/Kconfig:config PINCTRL_ARTPEC6
drivers/pinctrl/Kconfig:        bool "Axis ARTPEC-6 pin controller driver"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Lars Persson <lars.persson@axis.com>
Cc: Niklas Cassel <niklas.cassel@axis.com>
Cc: linux-arm-kernel@axis.com
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 16:28:27 +02:00
Andrew Jeffery
d0639d39fe pinctrl: aspeed: g5: Add pinconf support
Testing for pinctrl-aspeed-g5 was performed on an AST2500EVB system,
using the strategy outlined in the commit message for the change to the
Aspeed pinctrl core.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:55:50 +02:00
Andrew Jeffery
47b50b3743 pinctrl: aspeed: g4: Add pinconf support
Testing for pinctrl-aspeed-g4 was performed on an OpenPOWER Palmetto
system, using the strategy outlined in the commit message for the
change to the Aspeed pinctrl core.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:55:03 +02:00
Andrew Jeffery
7f354fd138 pinctrl: aspeed: Add core pinconf support
Several pinconf parameters have a fairly straight-forward mapping onto
the Aspeed pin controller. These include management of pull-down bias,
drive-strength, and some debounce configuration.

Pin biasing largely is managed on a per-GPIO-bank basis, aside from the
ADC and RMII/RGMII pins. As the bias configuration for each pin in a
bank maps onto a single per-bank bit, configuration tables will be
introduced to describe the ranges of pins and the supported pinconf
parameter. The use of tables also helps with the sparse support of
pinconf properties, and the fact that not all GPIO banks support
biasing or drive-strength configuration.

Further, as the pin controller uses a consistent approach for bias and
drive strength configuration at the register level, a second table is
defined for looking up the the bit-state required to enable or query the
provided configuration.

Testing for pinctrl-aspeed-g4 was performed on an OpenPOWER Palmetto
system, and pinctrl-aspeed-g5 on an AST2500EVB as well as under QEMU.
The test method was to set the appropriate bits via devmem and verify
the result through the controller's pinconf-pins debugfs file. This
simultaneously validates the get() path and half of the set() path. The
remainder of the set() path was validated by configuring a handful of
pins via the devicetree with the supported pinconf properties and
verifying the appropriate registers were touched.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:53:58 +02:00
Alexandre TORGUE
ca028dbb18 pinctrl: stm32: Add STM32F469 MCU support
This patch which adds STM32F469 pinctrl and GPIO support, relies on the
generic STM32 pinctrl driver.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:26:14 +02:00
Alexandre TORGUE
4a4e5f6f77 pinctrl: stm32: replace device_initcall() with arch_initcall()
Pinctrl has to be registered earlier. Mainly to register bank irqdomain
earlier as other devices could use interrupts from those irqdomain.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:21:31 +02:00
Alexandre TORGUE
1dc9d28915 pinctrl: stm32: add possibility to use gpio-ranges to declare bank range
Use device tree entries to declare gpio range. It will allow to use
no contiguous gpio bank and holes inside a bank.

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 14:20:05 +02:00
Gregory CLEMENT
5715092a45 pinctrl: armada-37xx: Add gpio support
GPIO management is pretty simple and is part of the same IP than the pin
controller for the Armada 37xx SoCs.  This patch adds the GPIO support to
the pinctrl-armada-37xx.c file, it also allows sharing common functions
between the gpiolib and the pinctrl drivers.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 13:47:29 +02:00
Gregory CLEMENT
87466ccd94 pinctrl: armada-37xx: Add pin controller support for Armada 37xx
The Armada 37xx SoC come with 2 pin controllers: one on the south
bridge (managing 28 pins) and one on the north bridge (managing 36 pins).

At the hardware level the controller configure the pins by group and not
pin by pin. This constraint is reflected in the design of the driver:
only the group related functions are implemented.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 11:31:36 +02:00
Andy Shevchenko
0ca4921fe9 pinctrl: core: Make pinctrl_init_controller() static
pinctrl_init_controller() is not used outside core.c, thus make it
static and prevent compiler to warn.

drivers/pinctrl/core.c:1943:21: warning: no previous prototype for ‘pinctrl_init_controller’ [-Wmissing-prototypes]
 struct pinctrl_dev *pinctrl_init_controller(struct pinctrl_desc *pctldesc,
                     ^~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-24 11:10:13 +02:00
Jacopo Mondi
8c58f1a7a4 pinctrl: generic: Add bi-directional and output-enable
Add bi-directional and output-enable pin configuration properties.

bi-directional allows to specify when a pin shall operate in input and
output mode at the same time. This is particularly useful in platforms
where input and output buffers have to be manually enabled.

output-enable is just syntactic sugar to specify that a pin shall
operate in output mode, ignoring the provided argument.
This pairs with input-enable pin configuration option.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-11 11:01:33 +02:00
Mika Westerberg
7036502783 pinctrl: cherryview: Add a quirk to make Acer Chromebook keyboard work again
After commit 47c950d102 ("pinctrl: cherryview: Do not add all
southwest and north GPIOs to IRQ domain") the driver does not add all
GPIOs to the irqdomain. The reason for that is that those GPIOs cannot
generate IRQs at all, only GPEs (General Purpose Events). This causes
Linux virtual IRQ numbering to change.

However, it seems some CYAN Chromebooks, including Acer Chromebook
hardcodes these Linux IRQ numbers in the ACPI tables of the machine.
Since the numbering is different now, the IRQ meant for keyboard does
not match the Linux virtual IRQ number anymore making the keyboard
non-functional.

Work this around by adding special quirk just for these machines where
we add back all GPIOs to the irqdomain. Rest of the Cherryview/Braswell
based machines will not be affected by the change.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=194945
Fixes: 47c950d102 ("pinctrl: cherryview: Do not add all southwest and north GPIOs to IRQ domain")
Reported-by: Adam S Levy <theadamlevy@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-11 10:09:39 +02:00
Andrew Jeffery
03ffb507c8 pinctrl: aspeed: Fix unused-const-variable warnings
Three video input signals suffered from a search/replace failure in
some copied code.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-11 09:47:44 +02:00
Linus Walleij
8d4264d86c Samsung pinctrl drivers update for v4.12:
1. Add support for pad retention control through pinctrl drivers which
    moves us forward to better runtime PM of pinctrl, clocks, power domains
    and other devices.
 2. Fix GPIO hogs by registering pinctrl before registering gpiolib.
 3. Use devm-like interface.
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Merge tag 'samsung-pinctrl-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into devel

Samsung pinctrl drivers update for v4.12:
1. Add support for pad retention control through pinctrl drivers which
   moves us forward to better runtime PM of pinctrl, clocks, power domains
   and other devices.
2. Fix GPIO hogs by registering pinctrl before registering gpiolib.
3. Use devm-like interface.
2017-04-10 09:35:30 +02:00
Chanwoo Choi
dbc9d69edf pinctrl: samsung: Add missing part for PINCFG_TYPE_DRV of Exynos5433
The commit 1259feddd0f8("pinctrl: samsung: Fix the width of
PINCFG_TYPE_DRV bitfields for Exynos5433") already fixed
the different width of PINCFG_TYPE_DRV from previous Exynos SoC.

However wrong merge conflict resolution was chosen in commit
7f36f5d11c ("Merge tag 'v4.10-rc6' into devel") effectively dropping
the changes for PINCFG_TYPE_DRV.  Re-do them here.

The macro EXYNOS_PIN_BANK_EINTW is no longer used so remove it.

Fixes: 7f36f5d11c ("Merge tag 'v4.10-rc6' into devel")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-10 09:34:08 +02:00
Alexandre Belloni
ba9e7f2794 pinctrl: at91-pio4: handle suspend to ram
When suspending to RAM, the power to the core is cut and the register
values are lost. Save and restore more registers than just IMR.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-07 14:32:51 +02:00
Geert Uytterhoeven
6bffa7e163 pinctrl: pinmux: Fix kerneldoc for pinmux_generic_add_function()
Correct the incorrect function name and description.

Fixes: a76edc89b1 ("pinctrl: core: Add generic pinctrl functions for managing groups")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-07 11:52:09 +02:00
Jesper Nilsson
00df0582ea pinctrl: Add pincontrol driver for ARTPEC-6 SoC
Add pinctrl driver support for the Axis ARTPEC-6 SoC.
There are only some pins that actually have different
functions available, but all can control bias (pull-up/-down)
and drive strength.

Code originally written by Chris Paterson.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-07 11:48:33 +02:00
Martin Blumenstingl
4781c22c76 pinctrl: meson: meson8b: rename the NAND DQS pin definitions
The NAND DQS pins are currently named nand_dqs_0 and nand_dqs_1.
However, they both seem to have the same function, just exposed on
different pins (unlike the ethernet TX pins for example, where there's
eth_txd0..3 - all of these can be active at the same time as they are
different data lines).
Rename the NAND DQS pins to nand_dqs_15 and nand_dqs_18 to reflect that
it's the same functionality just exposed on different pins (BOOT_15 and
BOOT_18).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-07 09:30:39 +02:00
Martin Blumenstingl
97ba26b8a9 pinctrl: meson: meson8b: fix the NAND DQS pins
The nand_groups table uses different names for the NAND DQS pins than
the GROUP() definition in meson8b_cbus_groups (nand_dqs_0 vs nand_dqs0).
This prevents using the NAND DQS pins in the devicetree.

Fix this by ensuring that the GROUP() definition and the
meson8b_cbus_groups use the same name for these pins.

Fixes: 0fefcb6876 ("pinctrl: Add support for Meson8b")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-07 09:29:02 +02:00
Tony Lindgren
6118714275 pinctrl: core: Fix pinctrl_register_and_init() with pinctrl_enable()
Recent pinctrl changes to allow dynamic allocation of pins exposed one
more issue with the pinctrl pins claimed early by the controller itself.
This caused a regression for IMX6 pinctrl hogs.

Before enabling the pin controller driver we need to wait until it has
been properly initialized, then claim the hogs, and only then enable it.

To fix the regression, split the code into pinctrl_claim_hogs() and
pinctrl_enable(). And then let's require that pinctrl_enable() is always
called by the pin controller driver when ready after calling
pinctrl_register_and_init().

Depends-on: 950b0d91dc ("pinctrl: core: Fix regression caused by delayed
work for hogs")
Fixes: df61b366af26 ("pinctrl: core: Use delayed work for hogs")
Fixes: e566fc11ea ("pinctrl: imx: use generic pinctrl helpers for
managing groups")
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Mika Penttilä <mika.penttila@nextfour.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Stefan Agner <stefan@agner.ch>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-04-07 01:08:08 +02:00
Sergei Shtylyov
5f4c8cafe1 pinctrl: sh-pfc: r8a7794: Swap ATA signals
All R8A7794 manuals I have here (0.50 and 1.10) agree that the PFC driver
has ATAG0# and ATAWR0# signals in IPSR12 swapped -- fix this.

Fixes: 43c4436e2f ("pinctrl: sh-pfc: add R8A7794 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-04-05 09:41:29 +02:00
Linus Walleij
9891baca2c pinctrl: sh-pfc: Updates for v4.12 (take two)
- Add basic support for the Pin Function Controller on revision ES2.0
     of the R-Car H3 SoC, which differs from ES1.x in many ways.
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Merge tag 'sh-pfc-for-v4.12-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v4.12 (take two)

  - Add basic support for the Pin Function Controller on revision ES2.0
    of the R-Car H3 SoC, which differs from ES1.x in many ways.
2017-04-04 13:56:08 +02:00
Sergei Shtylyov
0cbdc11482 pinctrl: sh-pfc: r8a7791: Fix IPSR comment typos
The IPSR field names in the comments have been fat-fingered in a couple
places --  fix those silly typos...

Fixes: 5088451962 ("pinctrl: sh-pfc: r8a7791 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-04-04 09:22:27 +02:00
Sergei Shtylyov
58439280f8 pinctrl: sh-pfc: r8a7791: Fix SCIF2 pinmux data
PINMUX_IPSR_MSEL() macro invocation for the TX2 signal has apparently wrong
1st argument -- most probably a result of cut&paste programming...

Fixes: 5088451962 ("pinctrl: sh-pfc: r8a7791 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-04-04 09:22:26 +02:00
Sergei Shtylyov
3908632fb8 pinctrl: sh-pfc: r8a7791: Add missing DVC_MUTE signal
The R8A7791 PFC driver  was apparently based on the preliminary revisions
of  the user's  manual, which  omitted the DVC_MUTE signal  altogether in
the PFC section. The modern manual has the signal described,  so just add
the necassary data to the driver...

Fixes: 5088451962 ("pinctrl: sh-pfc: r8a7791 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-04-04 09:22:26 +02:00
Sergei Shtylyov
da7a692fbb pinctrl: sh-pfc: r8a7791: Add missing HSCIF1 pinmux data
The R8A7791 PFC driver  was apparently based on the preliminary revisions
of  the  user's manual, which  omitted the HSCIF1 group E signals in  the
IPSR4 register description. This would cause HSCIF1's probe  to fail with
the messages like below:

sh-pfc e6060000.pfc: cannot locate data/mark enum_id for mark 1989
sh-sci e62c8000.serial: Error applying setting, reverse things back
sh-sci: probe of e62c8000.serial failed with error -22

Add the neceassary PINMUX_IPSR_MSEL() invocations for the HSCK1_E,
HCTS1#_E, and HRTS1#_E signals...

Fixes: 5088451962 ("pinctrl: sh-pfc: r8a7791 PFC support")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2017-04-04 09:22:25 +02:00
Geert Uytterhoeven
d14a39edf7 pinctrl: sh-pfc: r8a7795: Add SCIF_CLK support
Add pins, groups, and a function for SCIF_CLK on R-Car H3 ES2.0.
SCIF_CLK is the external clock source for the Baud Rate Generator for
External Clock (BRG) on (H)SCIF serial ports.

Extracted from a big patch in the BSP by Takeshi Kihara.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>
2017-03-30 13:43:55 +02:00
Geert Uytterhoeven
e7ad4d3c1d pinctrl: sh-pfc: r8a7795: Add SCIF support
Add pins, groups, and functions for all SCIF serial ports on R-Car H3
ES2.0.

Extracted from a big patch in the BSP by Takeshi Kihara.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>
2017-03-30 13:43:51 +02:00
Geert Uytterhoeven
b205914c8f pinctrl: sh-pfc: r8a7795: Add support for R-Car H3 ES2.0
The Pin Function Controller module in the R-Car H3 ES2.0 differs from
ES1.x in many ways.

The goal is twofold:
  1. Support both the ES1.x and ES2.0 SoC revisions in a single binary
     for now,
  2. Make it clear which code supports ES1.x, so it can easily be
     identified and removed later, when production SoCs are deemed
     ubiquitous.

Hence this patch:
  1. Extracts the support for R-Car H3 ES1.x into a separate file, as
     the differences are quite large,
  2. Adds code for detecting the SoC revision at runtime using the new
     soc_device_match() API, and selecting pinctrl tables for the actual
     SoC revision,
  3. Replaces the core register and bitfield definitions by their
     counterparts for R-Car H3 ES2.0.

The addition of pins, groups, and functions for the various on-chip
devices is left to subsequent patches.

The R-Car H3 ES2.0 register and bitfield definitions were extracted from
a patch in the BSP by Takeshi Kihara.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Takeshi Kihara <takeshi.kihara.df@renesas.com>
2017-03-30 13:43:45 +02:00
Jerome Brunet
b840d649f9 pinctrl: meson: gxl: add spdif output pins
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-03-28 15:14:12 +02:00
Jerome Brunet
2899adf042 pinctrl: meson: gxl: add i2s output pins
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-03-28 15:12:53 +02:00
Jerome Brunet
bce12d66d6 pinctrl: meson: gxbb: add spdif output pins
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-03-28 15:11:34 +02:00