Commit Graph

633619 Commits

Author SHA1 Message Date
David Lechner
1ff91f0ae3 pinctrl: New driver for TI DA850/OMAP-L138/AM18XX pinconf
This adds a new driver for pinconf on TI DA850/OMAP-L138/AM18XX. These
SoCs have a separate controller for controlling pullup/pulldown groups.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-12-07 15:27:00 +01:00
David Lechner
342030c7a2 devicetree: bindings: pinctrl: Add binding for ti,da850-pupd
Device-tree bindings for TI DA850/OMAP-L138/AM18XX pullup/pulldown
pinconf controller.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-12-07 15:27:00 +01:00
Keerthy
0ea66f76ba Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition
GPIO7 is configured in POWERHOLD mode which has higher priority
over DEV_ON bit and keeps the PMIC supplies on even after the DEV_ON
bit is turned off. This property enables driver to over ride the
POWERHOLD value to GPIO7 so as to turn off the PMIC in power off
scenarios.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-12-07 15:26:59 +01:00
Andy Shevchenko
3ae02c14d9 pinctrl: intel: set default handler to be handle_bad_irq()
We switch the default handler to be handle_bad_irq() instead of
handle_simple_irq() (which was not correct anyway).

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-12-07 15:26:59 +01:00
Peter Rosin
4f5ac8cf0a pinctrl: sx150x: add support for sx1501, sx1504, sx1505 and sx1507
Untested, register offsets carefully copied from datasheets.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-25 14:44:08 +01:00
Peter Rosin
bba709bd7a pinctrl: sx150x: sort chips by part number
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-25 14:40:59 +01:00
Peter Rosin
1663682cf0 pinctrl: sx150x: use correct registers for reg_sense (sx1502 and sx1508)
All other registers on these chips are 8-bit, but reg_sense is 16-bits
and therefore needs to be moved down one notch.
This was apparently overlooked in the conversion to regmap, which only
updated the register locations for the 16-bit chips.

Fixes: 6489677f86 ("pinctrl-sx150x: Replace sx150x_*_cfg by means of regmap API")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-25 14:40:06 +01:00
Gary Bisson
8f5983ad6b pinctrl: imx: fix imx_pinctrl_desc initialization
Fixes: 6e408ed8be ("pinctrl: imx: fix initialization of imx_pinctrl_desc")
Reviewed-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-25 14:09:21 +01:00
Peter Rosin
ec61168bc0 pinctrl: sx150x: support setting multiple pins at once
If the chip does not have an oscio pin, all pins are configured in
the same regmap register making it trivial to update all pins at
once, so do that. If an oscio pin is present, there needs to be
more locking in place to handle all cases correctly, so this is
skipped.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-24 15:07:44 +01:00
Peter Rosin
7bd474963a pinctrl: sx150x: various spelling fixes and some white-space cleanup
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-23 14:33:00 +01:00
Geliang Tang
4ecb65fb87 pinctrl: mediatek: use builtin_platform_driver
Use builtin_platform_driver() helper to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-22 10:17:28 +01:00
Geliang Tang
5b209efa3f pinctrl: stm32: use builtin_platform_driver
Use builtin_platform_driver() helper to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-22 09:57:39 +01:00
Dan Carpenter
b3cde198b1 pinctrl: sunxi: Testing the wrong variable
Smatch complains that we dereference "map" before testing it for NULL
which is true.  We should be testing "*map" instead.  Also on the error
path, we should free *map and set it to NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-22 09:55:33 +01:00
Linus Walleij
04d02c7a5e pinctrl: nomadik: split up and comments MC0 pins
When debugging it helps to see exactly which pin goes where,
so make it very detailed.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-18 09:54:32 +01:00
Dan Carpenter
712778d02d pinctrl: single: Fix a couple error codes
We should return -ENOMEM instead of success if pcs_add_function() fails.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-16 20:56:19 +01:00
Arnd Bergmann
d8a2221273 pinctrl: sunxi: fix theoretical uninitialized variable access
gcc warns about a  way that it could use an uninitialized variable:

drivers/pinctrl/sunxi/pinctrl-sunxi.c: In function 'sunxi_pinctrl_init':
drivers/pinctrl/sunxi/pinctrl-sunxi.c:1191:8: error: 'best_div' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This cannot really happen except if 'freq' is UINT_MAX and 'clock' is
zero, and both of these are forbidden. To shut up the warning anyway,
this changes the logic to initialize the return code to the first
divider value before looking at the others.

Fixes: 7c926492d3 ("pinctrl: sunxi: Add support for interrupt debouncing")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-16 20:53:48 +01:00
Linus Walleij
d278dae884 pinctrl: sh-pfc: Updates for v4.10 (take two)
- DU and EtherAVB pin groups for R-Car M3-W,
   - Bias handling cleanups and bug fixes,
   - Drive-strength for non-GPIO pins for R-Car H3,
   - EtherAVB MDIO & MII, and QSPI pin groups for R-Car H3.
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Merge tag 'sh-pfc-for-v4.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v4.10 (take two)

  - DU and EtherAVB pin groups for R-Car M3-W,
  - Bias handling cleanups and bug fixes,
  - Drive-strength for non-GPIO pins for R-Car H3,
  - EtherAVB MDIO & MII, and QSPI pin groups for R-Car H3.
2016-11-16 20:50:49 +01:00
Andy Yan
688daf234f pinctrl: rockchip: add support for rk1108
This add pinctrl support for Rockchip RK1108 Soc.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>

Series-changes: 2
- add pull and drive-strength functionality

Series-changes: 3
- two minor CodingStyle fixes adviced by Heiko
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-16 20:34:00 +01:00
Niklas Söderlund
1fa1522f61 pinctrl: sh-pfc: r8a7795: Add group for QSPI0 and QSPI1 pins
Group the QSPI0 and QSPI1 pins into similar groups found in other sh-pfc
drivers. The pins can not be muxed between functions other than QSPI,
but their drive strength can be controlled.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-16 10:29:14 +01:00
Niklas Söderlund
b25719eb93 pinctrl: sh-pfc: r8a7795: Add group for AVB MDIO and MII pins
Group the AVB pins into similar groups found in other sh-pfc drivers.
The pins can not be muxed between functions other then AVB but their
drive strength can be controlled.

The group avb_mdc containing ADV_MDC and ADV_MDIO are on other SoCs
called avb_mdio. In pfc-r8a7795 the avb_mdc group already existed and
is in use in DT. Therefore add the ADV_MDIO pin to the existing group
instead of renaming it.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-16 10:29:13 +01:00
Niklas Söderlund
ea9c740583 pinctrl: sh-pfc: r8a7795: Support none GPIO pins with configurable drive-strength
There are pins on the r8a7795 which are not part of a GPIO bank nor
can be muxed between different functions. They do however allow for the
drive-strength to be configured. Add those pins to the list of pins and
to the drive-strength configuration registers.

The pins can now be referred to in DT by function names and their
drive-strength modified.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-16 10:29:12 +01:00
Niklas Söderlund
1ce56aea7c pinctrl: sh-pfc: Support named pins with custom configuration
Pins not associated with a GPIO port can still have other configuration
parameters. Add a new macro SH_PFC_PIN_NAMED_CFG which allows for named
pins to be declared with a set of configurations. The new macro is an
modification of SH_PFC_PIN_NAMED to allow for optional configuration to
be assigned.

The flag SH_PFC_PIN_CFG_NO_GPIO is still enforced as this should only be
used to define pins not associated with a GPIO port.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-16 10:29:12 +01:00
Niklas Söderlund
5c296f69ab pinctrl: sh-pfc: r8a7778: Use lookup function for bias data
Change the data structure and use the generic sh_pfc_pin_to_bias_info()
function to get the register offset and bit information.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-16 10:29:11 +01:00
Niklas Söderlund
d3b861bccd pinctrl: sh-pfc: r8a7795: Use lookup function for bias data
There is a bug in the r8a7795 bias code where a WARN() is trigged
anytime a pin from PUEN0/PUD0 is accessed.

 # cat /sys/kernel/debug/pinctrl/e6060000.pfc/pinconf-pins

 WARNING: CPU: 2 PID: 2391 at drivers/pinctrl/sh-pfc/pfc-r8a7795.c:5364 r8a7795_pinmux_get_bias+0xbc/0xc8
 [..]
 Call trace:
 [<ffff0000083c442c>] r8a7795_pinmux_get_bias+0xbc/0xc8
 [<ffff0000083c37f4>] sh_pfc_pinconf_get+0x194/0x270
 [<ffff0000083b0768>] pin_config_get_for_pin+0x20/0x30
 [<ffff0000083b11e8>] pinconf_generic_dump_one+0x168/0x188
 [<ffff0000083b144c>] pinconf_generic_dump_pins+0x5c/0x98
 [<ffff0000083b0628>] pinconf_pins_show+0xc8/0x128
 [<ffff0000081fe3bc>] seq_read+0x16c/0x420
 [<ffff00000831a110>] full_proxy_read+0x58/0x88
 [<ffff0000081d7ad4>] __vfs_read+0x1c/0xf8
 [<ffff0000081d8874>] vfs_read+0x84/0x148
 [<ffff0000081d9d64>] SyS_read+0x44/0xa0
 [<ffff000008082f4c>] __sys_trace_return+0x0/0x4

This is due to the WARN() check if the reg field of the pullups struct
is zero, and this should be 0 for pins controlled by the PUEN0/PUD0
registers since PU0 is defined as 0. Change the data structure and use
the generic sh_pfc_pin_to_bias_info() function to get the register
offset and bit information.

Fixes: 560655247b ("pinctrl: sh-pfc: r8a7795: Add bias pinconf support")
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-16 10:29:10 +01:00
Niklas Söderlund
42831cf965 pinctrl: sh-pfc: r8a7795: Simplify get bias logic
The last else statement is missing braces, and the indentation level can
be reduced.

Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-16 10:28:58 +01:00
Niklas Söderlund
c314c9f15a pinctrl: sh-pfc: Add helper to handle bias lookup table
On some SoC there are no simple mapping of pins to bias register bits
and a lookup table is needed. This logic is already implemented in some
SoC specific drivers that could benefit from a generic implementation.

Add helpers to deal with the lookup which later can be used by the SoC
specific drivers. The logic used to lookup are different from the one it
aims to replace, this is intentional. This new method reduces the memory
consumption at the cost of increased CPU usage and fix a bug where a
WARN() would incorrectly be triggered if the register offset is 0.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-15 11:01:09 +01:00
Niklas Söderlund
5d7400c4ac pinctrl: sh-pfc: Do not unconditionally support PIN_CONFIG_BIAS_DISABLE
Always stating PIN_CONFIG_BIAS_DISABLE is supported gives untrue output
when examining /sys/kernel/debug/pinctrl/e6060000.pfc/pinconf-pins if
the operation get_bias() is implemented but the pin is not handled by
the get_bias() implementation. In that case the output will state that
"input bias disabled" indicating that this pin has bias control
support.

Make support for PIN_CONFIG_BIAS_DISABLE depend on that the pin either
supports SH_PFC_PIN_CFG_PULL_UP or SH_PFC_PIN_CFG_PULL_DOWN. This also
solves the issue where SoC specific implementations print error messages
if their particular implementation of {set,get}_bias() is called with a
pin it does not know about.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-15 11:01:09 +01:00
Niklas Söderlund
cccc618a0b pinctrl: sh-pfc: r8a7796: Add DU support
Only the DU parallel RGB output signals are included, HDMI and TCON pins
will be added in separate groups. Based on a similar patch from Laurent
Pinchart for the r8a7795 PFC driver.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-15 11:01:08 +01:00
Takeshi Kihara
9c99a63ec7 pinctrl: sh-pfc: r8a7796: Add EtherAVB pins, groups and functions
This patch adds AVB_LINK, AVB_MAGIC, AVB_PHY_INT, AVB_MDC, AVB_AVTP_PPS,
AVB_AVTP_MATCH, AVB_AVTP_CAPTURE pins, groups and functions to R8A7796
SoC.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2016-11-15 11:01:07 +01:00
Andy Yan
3b8d0fb9b8 dt-bindings: add documentation for rk1108 pinctrl
This adds the dt-binding documentation for rk1108 pinctrl

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 10:35:55 +01:00
Maxime Ripard
7c926492d3 pinctrl: sunxi: Add support for interrupt debouncing
The pin controller found in the Allwinner SoCs has support for interrupts
debouncing.

However, this is not done per-pin, preventing us from using the generic
pinconf binding for that, but per irq bank, which, depending on the SoC,
ranges from one to five.

Introduce a device-wide property to deal with this using a microsecond
resolution. We can re-use the per-pin input-debounce property for that, so
let's do it!

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 10:23:02 +01:00
Chen-Yu Tsai
5181482719 pinctrl: sunxi: Make sunxi_pconf_group_set use sunxi_pconf_reg helper
The sunxi_pconf_reg helper introduced in the last patch gives us the
chance to rework sunxi_pconf_group_set to have it match the structure
of sunxi_pconf_(group_)get and make it easier to understand.

For each config to set, it:

    1. checks if the parameter is supported.
    2. checks if the argument is within limits.
    3. converts argument to the register value.
    4. writes to the register with spinlock held.

As a result the function now blocks unsupported config parameters,
instead of silently ignoring them.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 10:21:49 +01:00
Chen-Yu Tsai
c5fda170e8 pinctrl: sunxi: Add support for fetching pinconf settings from hardware
The sunxi pinctrl driver only caches whatever pinconf setting was last
set on a given pingroup. This is not particularly helpful, nor is it
correct.

Fix this by actually reading the hardware registers and returning
the correct results or error codes. Also filter out unsupported
pinconf settings. Since this driver has a peculiar setup of 1 pin
per group, we can support both pin and pingroup pinconf setting
read back with the same code. The sunxi_pconf_reg helper and code
structure is inspired by pinctrl-msm.

With this done we can also claim to support generic pinconf, by
setting .is_generic = true in pinconf_ops.

Also remove the cached config value. The behavior of this was never
correct, as it only cached 1 setting instead of all of them. Since
we can now read back settings directly from the hardware, it is no
longer required.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 10:20:27 +01:00
Chen-Yu Tsai
223dba00b4 pinctrl: sunxi: Fix PIN_CONFIG_BIAS_PULL_{DOWN,UP} argument
According to pinconf-generic.h, the argument for
PIN_CONFIG_BIAS_PULL_{DOWN,UP} is non-zero if the bias is enabled
with a pull up/down resistor, zero if it is directly connected
to VDD or ground.

Since Allwinner hardware uses a weak pull resistor internally,
the argument should be 1.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 10:17:45 +01:00
Chen-Yu Tsai
88f01a1bd0 pinctrl: sunxi: Free configs in pinctrl_map only if it is a config map
In the recently refactored sunxi pinctrl library, we are only allocating
one set of pin configs for each pinmux setting node. When the pinctrl_map
structure is freed, the pin configs should also be freed. However the
code assumed the first map would contain the configs, which actually
never happens, as the mux function map gets added first.

The proper way to do this is to look through all the maps and free the
first one whose type is actually PIN_MAP_TYPE_CONFIGS_GROUP.

Also slightly expand the comment explaining this.

Fixes: f233dbca62 ("pinctrl: sunxi: Rework the pin config building code")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 10:15:04 +01:00
Paul Gortmaker
23d511f6fe pinctrl: vt8500: make bool drivers explicitly non-modular
None of the Kconfigs for any of these drivers are tristate, meaning
that they currently are not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the drivers there is no doubt they are builtin-only.  All
drivers get the exact same change, so they are handled in batch.

Changes are (1) use builtin_platform_driver, (2) use init.h header
(3) delete module_exit related code, (4) delete MODULE_DEVICE_TABLE,
(5) delete MODULE_LICENCE/MODULE_AUTHOR and associated tags and (6)
drop ".remove" code and prevent sysfs unbind attempts to call ".remove".

Once this is done, the shared remove function in wmt.[ch] is no longer
used and hence it is removed as well.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

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

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

Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 10:04:20 +01:00
Chanwoo Choi
ac8130e94c pinctrl: samsung: Add GPF support for Exynos5433
This patch add the support of GPF[1-5] pin of Exynos5433 SoC. The GPFx need
to support the multiple memory map because the registers of GPFx are located
in the different domain.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 09:42:44 +01:00
Chanwoo Choi
8b1bd11c1f pinctrl: samsung: Add the support the multiple IORESOURCE_MEM for one pin-bank
This patch supports the multiple IORESOURCE_MEM resources for one pin-bank.
In the pre-existing Exynos series, the registers of the gpio bank are included
in the one memory map. But, some gpio bank need to support the one more memory
map (IORESOURCE_MEM) because the registers of gpio bank are separated into
the different memory map.

For example,
The both ALIVE and IMEM domain have the different memory base address.
The GFP[1-5] of exynos5433 are composed as following:
- ALIVE domain : WEINT_* registers
- IMEM domain  : CON/DAT/PUD/DRV/CONPDN/PUDPDN register

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: linux-gpio@vger.kernel.org
Suggested-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 09:41:35 +01:00
Phil Elwell
ccca1ad5db pinctrl: bcm2835: Return pins to inputs when freed
When dynamically unloading overlays, it is important that freed pins are
restored to being inputs to prevent functions from being enabled in
multiple places at once.

Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 00:14:14 +01:00
Phil Elwell
00445b5d58 pinctrl: bcm2835: Fix ints for GPIOs 28-31 & 46-53
Contrary to the documentation, the BCM2835 GPIO controller actually
has four interrupt lines - one each for the three IRQ groups and one
common. Confusingly, the GPIO interrupt groups don't correspond
directly with the GPIO control banks. Instead, GPIOs 0-27 generate IRQ
GPIO0, 28-45 IRQ GPIO1 and 46-53 IRQ GPIO2.

Awkwardly, the GPIOs for IRQ GPIO1 straddle two 32-entry GPIO banks,
so split out a function to process the interrupts for a single GPIO
bank.

Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-15 00:13:52 +01:00
Axel Haslam
dd68a526c7 pinctrl: single: search for the bits property when parsing bits
The pcs_parse_bits_in_pinctrl_entry function should search
for the "pinctrl-single,bits" and not "pinctrl-single,pins"

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-11 21:29:37 +01:00
Axel Haslam
de7416bcee pinctrl: single: check for any error when getting rows
pinctrl_count_index_with_args returns -ENOENT not
-EINVAL. The return check would pass, and we would
try to kzalloc with a negative error size throwing
a warning.

Instead of checking for -EINVAL specifically, lets
check for any error and avoid negative size allocations.

Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-11 21:28:07 +01:00
Heinrich Schuchardt
95bdb0ea36 pinctrl: st: st_pctl_dt_parse_groups simplify expression
for_each_property_of_node(pins, pp) checks that pp is not NULL.
So there is no need to check it inside the loop.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-08 14:18:03 +01:00
Heinrich Schuchardt
fdcf83552a pinctrl: st: st_pinconf_dbg_show wrong format string
function is defined as unsigned int.
So we need %u to print it.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-08 14:18:02 +01:00
Linus Walleij
f7cf78b953 pinctrl: sh-pfc: Updates for v4.10
- I2C and DRIF pin groups for R-Car M3-W,
   - Bug fixes for SDHI2/3 on R-Car M3-W.
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Merge tag 'sh-pfc-for-v4.10-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v4.10

  - I2C and DRIF pin groups for R-Car M3-W,
  - Bug fixes for SDHI2/3 on R-Car M3-W.
2016-11-08 10:31:34 +01:00
Linus Walleij
fc669d13cb pinctrl: sx150x: fix up headers
Include <linux/gpio/driver.h> rather than <linux/gpio.h>
Drop <linux/pinctrl/machine.h>.

Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-08 10:26:46 +01:00
Andrey Smirnov
f9038d603a pinctrl-sx150x: Remove magic numbers from sx150x_reset
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-08 09:48:49 +01:00
Andrey Smirnov
fd931f2373 pinctrl-sx150x: Remove magic numbers from sx150x_irq_set_type
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-08 09:48:06 +01:00
Andrey Smirnov
080c489dde pinctrl-sx150x: Use handle_bad_irq instead of handle_edge_irq
Althought the function passed as a "handler" during GPIO chip
instantiation is not going to ever be called, specifying handle_edge_irq
there makes for a rather confusing read, both because no "ack" callback
in specified for irqchip and because there's no acking action is
necessary.

Specify handle_bad_irq instead a make a note of the situation. This
commit should be a no-op behaviour wise.

Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-08 09:46:53 +01:00
Andrey Smirnov
05a90cc729 pinctrl-sx150x: Simplify interrupt handler
Make use of for_each_set_bit macro and reduce boilerplate code.

Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-11-08 09:46:13 +01:00