Commit Graph

85 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Bhumika Goyal
ae9d7f83a5 pinctrl: freescale: make mxs_regs const
Make these const as they are only stored in the const field of a
mxs_pinctrl_soc_data structure.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-31 13:57:01 +02:00
Rob Herring
f5292d06c4 pinctrl: Convert to using %pOF instead of full_name
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Barry Song <baohua@kernel.org>
Cc: linux-gpio@vger.kernel.org
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: kernel@stlinux.com
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-renesas-soc@vger.kernel.org
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:01:02 +02:00
Dong Aisheng
26d1f43822 pinctrl: pinctrl-imx7ulp: add gpio_set_direction support
Add gpio_set_direction support. This makes the driver support
GPIO input/output dynamically change from userspace.

Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Fugang Duan <fugang.duan@nxp.com>
Cc: Bai Ping <ping.bai@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:01:01 +02:00
Dong Aisheng
3be6f65102 pinctrl: imx: make imx_pmx_ops.gpio_set_direction platform specific callbacks
Various IMX platforms may have different imx_pmx_ops.gpio_set_direction
implementations, so let's make it platform specific callbacks instead of
the fixed common one.

Currently only VF610 platform implements it. No function level changes.

Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:01:01 +02:00
Dong Aisheng
a5c771e6cb pinctrl: imx: remove gpio_request_enable and gpio_disable_free
gpio_request_enable/disable_free actually are not quite necessary as
standard IMX pinctrl binding already sets GPIO mux from device tree,
e.g. VF610_PAD_PTB20__GPIO_42 or MX7D_PAD_SD2_CD_B__GPIO5_IO9
No need to do it again in gpio_request_enable.

And according to Stefan:
"For all GPIO I checked in upstream device trees we assign a pinctrl
to the same node, so in all cases gpio_request_enable/disable is really
unnecessary."

So it should be safe to simply remove it.

Note that this changes semantics for Vybrid, e.g.
"The two functions have been introduced for Vybrid (through
SHARE_MUX_CONF_REG) and mux pins as GPIOs automatically when a GPIO
gets requested. The automatic mux is optional by the pinmux/gpio
subsystem semantics, and other NXP devices do not use it, instead an
explicit pinctrl node is added in the device tree to mux GPIOs where
required. Hence this change aligns Vybrid to other NXP (i.MX) devices.

Note that all upstream device tree assign proper pinctrl properties
where GPIOs are used so no change is necessary for device trees."

Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fugang Duan <fugang.duan@nxp.com>
Cc: Bai Ping <ping.bai@nxp.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:01:01 +02:00
Dong Aisheng
b026402b73 pinctrl: imx: add imx7ulp driver
i.MX 7ULP has three IOMUXC instances: IOMUXC0 for M4 ports,
IOMUXC1 for A7 ports and IOMUXC DDR for DDR interface.

This patch adds the IOMUXC1 support for A7.
It only supports generic pin config.

Cc: Bai Ping <ping.bai@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:01:01 +02:00
Dong Aisheng
fc4f351a63 pinctrl: imx: switch to use the generic pinmux property
The generic pinmux property seems to be more suitable for IMX.
So we change to use 'pinmux' instead of 'pins'.

Cc: Bai Ping <ping.bai@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-08-14 15:01:00 +02:00
Arvind Yadav
b3060044e4 pinctrl: freescale: imx7d: make of_device_ids const.
of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by <linux/of.h> work with const
of_device_ids. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-06-29 14:56:36 +02:00
Linus Walleij
6183061967 Linux 4.12-rc7
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Merge tag 'v4.12-rc7' into devel

Linux 4.12-rc7
2017-06-29 14:27:39 +02:00
Uwe Kleine-König
da6c2addf6 pinctrl: mxs: atomically switch mux and drive strength config
To set the mux mode of a pin two bits must be set. Up to now this is
implemented using the following idiom:

	writel(mask, reg + CLR);
	writel(value, reg + SET);

. This however results in the mux mode being 0 between the two writes.

On my machine there is an IC's reset pin connected to LCD_D20. The
bootloader configures this pin as GPIO output-high (i.e. not holding the
IC in reset). When Linux reconfigures the pin to GPIO the short time
LCD_D20 is muxed as LCD_D20 instead of GPIO_1_20 is enough to confuse
the connected IC.

The same problem is present for the pin's drive strength setting which is
reset to low drive strength before using the right value.

So instead of relying on the hardware to modify the register setting
using two writes implement the bit toggling using read-modify-write.

Fixes: 17723111e6 ("pinctrl: add pinctrl-mxs support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-23 11:27:53 +02:00
Dong Aisheng
5586ee4191 pinctrl: imx: add soc specific mux_mode mask and shift property
MX7ULP MUX mode mask and shift bit is different from VF610.
Let's make it a platform specific property for the later easy of
adding MX7ULP support.

One trick in exist code that Vybrid hardcoded the config part
as 0xffff because its mux_config register BIT[15-0] are all configs
part. But it's not true in ULP, so use mux_mask instead to address
the difference.

Cc: Stefan Agner <stefan@agner.ch>
Cc: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 11:05:19 +02:00
Dong Aisheng
a5cadbbb08 pinctrl: imx: add generic pin config core support
The design is based on the exist architecture that the core will
provide a uniformed way to decode the generic pin config into platform
config register raw data according to the imx_cfg_params_decode maps
registered by platform.

Two useful macros, IMX_CFG_PARAMS_DECODE and IMX_CFG_PARAMS_DECODE_INVERT,
are created for platform to register decode map conveniently.

In order to cope with some special case, a platform specific fixup()
function is also available to use.

Note that rather than fully utilizing the generic pinconf support
provided by pinctrl core, IMX only adopts the device tree bindings
of generic pinconf. The config used in .pin_config_get[set] are raw
register data instead of generic one which makes us align the exist
using. And that's also why we cannot set pinconf_ops.is_generic.

Cc: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 11:03:47 +02:00
Dong Aisheng
66b54e3a5a pinctrl: imx: fix debug message for SHARE_MUX_CONF_REG case
The original implemented debug message does not work for
SHARE_MUX_CONF_REG case. This patch fixes it.

Fixes: bf5a530971 ("pinctrl: imx: add VF610 support to imx pinctrl framework")
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 11:01:51 +02:00
Christophe JAILLET
49af64e6b5 pinctrl: imx: Check for memory allocation failure
If 'devm_kzalloc' fails, a NULL pointer will be dereferenced.
Return -ENOMEM instead, as done for the other memory allocation just a
few lines below.
BTW, change the 'devm_kzalloc' into a 'devm_kcalloc'.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-05-22 10:39:25 +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
Tony Lindgren
950b0d91dc pinctrl: core: Fix regression caused by delayed work for hogs
Commit df61b366af26 ("pinctrl: core: Use delayed work for hogs") caused a
regression at least with sh-pfc that is also a GPIO controller as
noted by Geert Uytterhoeven <geert@linux-m68k.org>.

As the original pinctrl_register() has issues calling pin controller
driver functions early before the controller has finished registering,
we can't just revert commit df61b366af26. That would break the drivers
using GENERIC_PINCTRL_GROUPS or GENERIC_PINMUX_FUNCTIONS.

So let's fix the issue with the following steps as a single patch:

1. Revert the late_init parts of commit df61b366af26.

   The late_init clearly won't work and we have to just give up
   on fixing pinctrl_register() for GENERIC_PINCTRL_GROUPS and
   GENERIC_PINMUX_FUNCTIONS.

2. Split pinctrl_register() into two parts

   By splitting pinctrl_register() into pinctrl_init_controller()
   and pinctrl_create_and_start() we have better control over when
   it's safe to call pinctrl_create().

3. Introduce a new pinctrl_register_and_init() function

   As suggested by Linus Walleij <linus.walleij@linaro.org>, we
   can just introduce a new function for the controllers that need
   pinctrl_create() called later.

4. Convert the four known problem cases to use new function

   Let's convert pinctrl-imx, pinctrl-single, sh-pfc and ti-iodelay
   to use the new function to fix the issues. The rest of the drivers
   can be converted later. Let's also update Documentation/pinctrl.txt
   accordingly because of the known issues with pinctrl_register().

Fixes: df61b366af26 ("pinctrl: core: Use delayed work for hogs")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-13 16:25:17 +01:00
Gary Bisson
3fd6d6ad73 pinctrl: imx: use generic pinmux helpers for managing functions
Now using function_desc structure instead of imx_pmx_func.

Also leveraging generic functions to retrieve functions count/name/groups.

The imx_free_funcs function can be removed since it is now handled by
the core driver during unregister.

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-03 09:26:21 +01:00
Gary Bisson
e566fc11ea pinctrl: imx: use generic pinctrl helpers for managing groups
Now using group_desc structure instead of imx_pin_group.

Also leveraging generic functions to retrieve groups count/name/pins.

The imx_free_pingroups function can be removed since it is now handled by
the core driver during unregister.

Finally the device tree parsing is moved after the pinctrl driver registration
since this latter initializes the radix trees.

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-03 09:26:20 +01:00
Gary Bisson
a51c158bf0 pinctrl: imx: use radix trees for groups and functions
This change is inspired from the pinctrl-single architecture.

The problem with current implementation is that it isn't possible
to add/remove functions and/or groups dynamically. The radix tree
offers an easy way to do so. The intent is to offer a follow-up
patch later that will enable the use of pinctrl nodes in dt-overlays.

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-12-30 14:26:01 +01:00
Gary Bisson
b28742be47 pinctrl: imx: remove const qualifier of imx_pinctrl_soc_info
Otherwise can't dynamically update fields such as ngroups which can
change over time (with a dt-overlay for instance).

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-12-30 14:22:06 +01:00
Linus Torvalds
20d5ba4928 Bulk pin control changes for the v4.10 kernel cycle:
No core changes this time. Mainly gradual improvement and
 feature growth in the drivers.
 
 New drivers:
 
 - New driver for TI DA850/OMAP-L138/AM18XX pinconf
 
 - The SX150x was moved over from the GPIO subsystem and
   reimagined as a pin control driver with GPIO support
   in a joint effort by three independent users of this
   hardware. The result was amazingly good!
 
 - New subdriver for the Oxnas OX820
 
 Improvements:
 
 - The sunxi driver now supports the generic pin control
   bindings rather than the sunxi-specific. Add debouncing
   support to the driver.
 
 - Simplifications in pinctrl-single adding a generic parser.
 
 - Two downstream fixes and move the Raspberry Pi BCM2835 over
   to use the generic GPIOLIB_IRQCHIP.
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Merge tag 'pinctrl-v4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pinctrl updates from Linus Walleij:
 "Bulk pin control changes for the v4.10 kernel cycle:

  No core changes this time. Mainly gradual improvement and
  feature growth in the drivers.

  New drivers:

   - New driver for TI DA850/OMAP-L138/AM18XX pinconf

   - The SX150x was moved over from the GPIO subsystem and reimagined as
     a pin control driver with GPIO support in a joint effort by three
     independent users of this hardware. The result was amazingly good!

   - New subdriver for the Oxnas OX820

  Improvements:

   - The sunxi driver now supports the generic pin control bindings
     rather than the sunxi-specific. Add debouncing support to the
     driver.

   - Simplifications in pinctrl-single adding a generic parser.

   - Two downstream fixes and move the Raspberry Pi BCM2835 over to use
     the generic GPIOLIB_IRQCHIP"

* tag 'pinctrl-v4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (92 commits)
  pinctrl: sx150x: use new nested IRQ infrastructure
  pinctrl: sx150x: handle missing 'advanced' reg in sx1504 and sx1505
  pinctrl: sx150x: rename 'reg_advance' to 'reg_advanced'
  pinctrl: sx150x: access the correct bits in the 4-bit regs of sx150[147]
  pinctrl: mt8173: set GPIO16 to usb iddig mode
  pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP
  pinctrl: New driver for TI DA850/OMAP-L138/AM18XX pinconf
  devicetree: bindings: pinctrl: Add binding for ti,da850-pupd
  Documentation: pinctrl: palmas: Add ti,palmas-powerhold-override property definition
  pinctrl: intel: set default handler to be handle_bad_irq()
  pinctrl: sx150x: add support for sx1501, sx1504, sx1505 and sx1507
  pinctrl: sx150x: sort chips by part number
  pinctrl: sx150x: use correct registers for reg_sense (sx1502 and sx1508)
  pinctrl: imx: fix imx_pinctrl_desc initialization
  pinctrl: sx150x: support setting multiple pins at once
  pinctrl: sx150x: various spelling fixes and some white-space cleanup
  pinctrl: mediatek: use builtin_platform_driver
  pinctrl: stm32: use builtin_platform_driver
  pinctrl: sunxi: Testing the wrong variable
  pinctrl: nomadik: split up and comments MC0 pins
  ...
2016-12-13 07:59:10 -08:00
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
Stefan Agner
9999fe5df5 pinctrl: imx: reset group index on probe
Group index is incremented on every new group parsed. Since the
field is part of struct imx_pinctrl_soc_info, which is typically
a global variable passed by the individual pinctrl-imx.c based
driver, it does not get cleared automatically when re-probing the
driver. This lead imx_pinctrl_parse_functions passing a group
pointer which is outside of the allocated group space on second
probe and onwards. Typically this ended up in a NULL pointer
dereference when accessing the name field like this:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
...
PC is at strcmp+0x18/0x44
LR is at imx_dt_node_to_map+0xc4/0x290

Avoid this by setting group_index to 0 on probe.

This has been observed when using DEBUG_TEST_DRIVER_REMOVE.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-10-31 21:25:15 +01:00
Vladimir Zapolskiy
430be10dd3 pinctrl: imx: accept gpio request/free from pinctrl
While only Freescale Vybrid SoC has settings of GPIO capabilities done
by iomux controller, it is only a matter of GPIO controller driver
implementation for the rest of Freescale/NXP SoCs from iMX series.

As a practical example on GPIO request a pad function should be
switched to GPIO, but because this requires updates to all particular
iMX pinctrl drivers, for simplicity at the moment add only a proper
connection between shared pinctrl-imx and pinctrl/pinmux core, namely
.gpio_request_enable/.gpio_disable_free/.gpio_set_direction callbacks
should return success to a caller. This change allows to progress by
adding request/free callbacks into gpio-mxc.c driver.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-12 14:25:52 +02:00
Vladimir Zapolskiy
a2d16a2183 pinctrl: imx: output one pin/config pair per line in pinconf-groups
cat /sys/kernel/debug/pinctrl/${pinctrl}/pinconf-groups output is
hardly readable, if a pin group contains more than one pin the output
is glued and looks like this:

  MX6Q_PAD_SD1_DAT0: 0x17071MX6Q_PAD_SD1_CMD: 0x17071MX6Q_PAD_SD1_CLK: 0x17071

Add two space indentation and a new line separator to improve
readability of the output.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-06 00:18:10 +02:00
Linus Torvalds
d94ba9e7d8 This is the bulk of pin control changes for the v4.8 kernel cycle.
New drivers:
 
 - New driver for Oxnas pin control and GPIO. This ARM-based chipset
   is used in a few storage (NAS) type devices.
 
 - New driver for the MAX77620/MAX20024 pin controller portions.
 
 - New driver for the Intel Merrifield pin controller.
 
 New subdrivers:
 
 - New subdriver for the Qualcomm MDM9615
 
 - New subdriver for the STM32F746 MCU
 
 - New subdriver for the Broadcom NSP SoC.
 
 Cleanups:
 
 - Demodularization of bool compiled-in drivers.
 
 Apart from this there is just regular incremental improvements to
 a lot of drivers, especially Uniphier and PFC.
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Merge tag 'pinctrl-v4.8-1' 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 v4.8 kernel cycle.

  Nothing stands out as especially exiting: new drivers, new subdrivers,
  lots of cleanups and incremental features.

  Business as usual.

  New drivers:

   - New driver for Oxnas pin control and GPIO.  This ARM-based chipset
     is used in a few storage (NAS) type devices.

   - New driver for the MAX77620/MAX20024 pin controller portions.

   - New driver for the Intel Merrifield pin controller.

  New subdrivers:

   - New subdriver for the Qualcomm MDM9615

   - New subdriver for the STM32F746 MCU

   - New subdriver for the Broadcom NSP SoC.

  Cleanups:

   - Demodularization of bool compiled-in drivers.

  Apart from this there is just regular incremental improvements to a
  lot of drivers, especially Uniphier and PFC"

* tag 'pinctrl-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (131 commits)
  pinctrl: fix pincontrol definition for marvell
  pinctrl: xway: fix typo
  Revert "pinctrl: amd: make it explicitly non-modular"
  pinctrl: iproc: Add NSP and Stingray GPIO support
  pinctrl: Update iProc GPIO DT bindings
  pinctrl: bcm: add OF dependencies
  pinctrl: ns2: remove redundant dev_err call in ns2_pinmux_probe()
  pinctrl: Add STM32F746 MCU support
  pinctrl: intel: Protect set wake flow by spin lock
  pinctrl: nsp: remove redundant dev_err call in nsp_pinmux_probe()
  pinctrl: uniphier: add Ethernet pin-mux settings
  sh-pfc: Use PTR_ERR_OR_ZERO() to simplify the code
  pinctrl: ns2: fix return value check in ns2_pinmux_probe()
  pinctrl: qcom: update DT bindings with ebi2 groups
  pinctrl: qcom: establish proper EBI2 pin groups
  pinctrl: imx21: Remove the MODULE_DEVICE_TABLE() macro
  Documentation: dt: Add new compatible to STM32 pinctrl driver bindings
  includes: dt-bindings: Add STM32F746 pinctrl DT bindings
  pinctrl: sunxi: fix nand0 function name for sun8i
  pinctrl: uniphier: remove pointless pin-mux settings for PH1-LD11
  ...
2016-07-28 17:06:51 -07:00
Fabio Estevam
8229bcf887 pinctrl: imx21: Remove the MODULE_DEVICE_TABLE() macro
Commit e2756baa42 ("pinctrl: imx21: make it explicitly non-modular")
missed the removal of the MODULE_DEVICE_TABLE() macro causing the
following build error:

drivers/pinctrl/freescale/pinctrl-imx21.c:328:1: error: data definition has no type or storage class [-Werror]
 MODULE_DEVICE_TABLE(of, imx21_pinctrl_of_match);

,so remove the macro to fix this problem.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-07-06 15:41:31 +02:00
Paul Gortmaker
11884b18ef pinctrl: remove orphaned exported ".remove" function
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_MXS
drivers/pinctrl/freescale/Kconfig:	bool

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

It also doesn't have any modular functionality, so it doesn't need
module.h included at all.

What it does have is an exported function that was used as a shared
".remove" by other drivers, but those use cases (imx23 and imx28)
are now gone, and hence this can disappear as well.

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>
2016-06-29 09:56:28 +02:00
Paul Gortmaker
37824c122c pinctrl: imx28: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX28
drivers/pinctrl/freescale/Kconfig:	bool

...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.

We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.

Since module_init was not in use by this 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 tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawn.guo@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>
2016-06-29 09:55:30 +02:00
Paul Gortmaker
1ab599e71b pinctrl: imx23: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX23
drivers/pinctrl/freescale/Kconfig:	bool

...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.

We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.

Since module_init wasn't actually used by this 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 tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawn.guo@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>
2016-06-29 09:54:37 +02:00
Paul Gortmaker
8bab1a7b36 pinctrl: vf610: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_VF610
drivers/pinctrl/freescale/Kconfig:	bool "Freescale Vybrid VF610 pinctrl 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.

Since module_init wasn't in use by this driver, the init ordering
remains unchanged with this commit.

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: 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>
2016-06-29 09:53:48 +02:00
Paul Gortmaker
bc21f4885f pinctrl: imx7d: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX7D
drivers/pinctrl/freescale/Kconfig:	bool "IMX7D pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Anson Huang <Anson.Huang@freescale.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-29 09:52:59 +02:00
Paul Gortmaker
f23556d3c4 pinctrl: imx6ul: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX6UL
drivers/pinctrl/freescale/Kconfig:	bool "IMX6UL pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Anson Huang <Anson.Huang@freescale.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-29 09:52:01 +02:00
Paul Gortmaker
7ce3cddae4 pinctrl: imx6sx: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX6SX
drivers/pinctrl/freescale/Kconfig:	bool "IMX6SX pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Anson Huang <Anson.Huang@freescale.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-29 09:51:08 +02:00
Paul Gortmaker
c621e070bf pinctrl: imx6sl: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX6SL
drivers/pinctrl/freescale/Kconfig:	bool "IMX6SL pinctrl 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.

Since module_init was not in use by this 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 tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawn.guo@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>
2016-06-29 09:50:10 +02:00
Paul Gortmaker
4abaa3c2d9 pinctrl: imx6q: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX6Q
drivers/pinctrl/freescale/Kconfig:	bool "IMX6Q/DL pinctrl 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.

Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.

We don't replace module.h with init.h since the file already has that.
But we do add export.h since this file uses the global THIS_MODULE.

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: Linus Walleij <linus.walleij@linaro.org>
Cc: Dong Aisheng <dong.aisheng@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>
2016-06-29 09:49:20 +02:00
Paul Gortmaker
4277a02dae pinctrl: imx6dl: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX6Q
drivers/pinctrl/freescale/Kconfig:	bool "IMX6Q/DL pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Shawn Guo <shawn.guo@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>
2016-06-29 09:38:40 +02:00
Paul Gortmaker
85b80b463a pinctrl: imx53: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX53
drivers/pinctrl/freescale/Kconfig:	bool "IMX53 pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

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: Linus Walleij <linus.walleij@linaro.org>
Cc: Dong Aisheng <dong.aisheng@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>
2016-06-29 09:37:44 +02:00
Paul Gortmaker
b588cb1e76 pinctrl: imx51: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX51
drivers/pinctrl/freescale/Kconfig:	bool "IMX51 pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

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: Linus Walleij <linus.walleij@linaro.org>
Cc: Dong Aisheng <dong.aisheng@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>
2016-06-29 09:36:53 +02:00
Paul Gortmaker
4415db177d pinctrl: imx50: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX50
drivers/pinctrl/freescale/Kconfig:	bool "IMX50 pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

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: 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>
2016-06-29 09:35:48 +02:00
Paul Gortmaker
b2892dfdc1 pinctrl: imx35: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX35
drivers/pinctrl/freescale/Kconfig:	bool "IMX35 pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

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: Linus Walleij <linus.walleij@linaro.org>
Cc: Dong Aisheng <dong.aisheng@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>
2016-06-29 09:34:52 +02:00
Paul Gortmaker
7fc8f59305 pinctrl: imx27: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX27
drivers/pinctrl/freescale/Kconfig:	bool "IMX27 pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

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: Linus Walleij <linus.walleij@linaro.org>
Cc: Markus Pargmann <mpa@pengutronix.de>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-29 09:34:01 +02:00
Paul Gortmaker
734ffc8522 pinctrl: imx25: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX25
drivers/pinctrl/freescale/Kconfig:        bool "IMX25 pinctrl 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.

Since module_init was not in use by this driver, the init ordering
remains unchanged with this commit.

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: Linus Walleij <linus.walleij@linaro.org>
Cc: Denis Carikli <denis@eukrea.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-29 09:32:59 +02:00
Paul Gortmaker
e2756baa42 pinctrl: imx21: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX21
drivers/pinctrl/freescale/Kconfig:	bool "i.MX21 pinctrl 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.

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

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: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-29 09:32:06 +02:00
Paul Gortmaker
4d1db6e783 pinctrl: imx1: make it explicitly non-modular
The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/freescale/Kconfig:config PINCTRL_IMX1
drivers/pinctrl/freescale/Kconfig:	bool "IMX1 pinctrl 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.

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

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-29 09:31:03 +02:00
Paul Gortmaker
7f8750ada0 pinctrl: freescale: remove needless module.h include
None of these files have anything modular in them, so they
don't need to be bringing in module.h and all its dependencies.

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>
2016-06-29 09:30:10 +02:00
Alexander Shiyan
ba562d5e54 pinctrl: imx: Do not treat a PIN without MUX register as an error
Some PINs do not have a MUX register, it is not an error.
It is necessary to allow the continuation of the PINs configuration,
otherwise the whole PIN-group will be configured incorrectly.

Cc: stable@vger.kernel.org
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-22 17:58:06 +02:00
Arnd Bergmann
56411f3c05 pinctrl: fix incorrect inline keyword in multiple drivers
When building with 'make W=1', we get harmless warnings about
five drivers in drivers/pinctrl, which all contain a copy of
the same line:

drivers/pinctrl/freescale/pinctrl-imx1-core.c:160:1: error: 'inline' is not at beginning of declaration [-Werror=old-style-declaration]

This replaces the somewhat nonstandard 'static const inline'
with 'static inline const', which has the same meaning but
does not cause this warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-06-15 08:37:41 +02:00
Peng Fan
6e408ed8be pinctrl: imx: fix initialization of imx_pinctrl_desc
To i.MX7D, there are two iomux controllers, iomuxc and iomuxc_lpsr.
They should not share one pin controller descriptor, otherwise
the value filled into imx_pinctrl_desc when probing the first
iomux controller will be overridden when probing the second one.

In this patch, discard the static allcoated imx_pinctrl_desc and
switch to dynamically allcate pin controller descriptor for each
iomux controller.

Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-05-31 10:54:31 +02:00