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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-23 12:43:55 +08:00
Commit Graph

62 Commits

Author SHA1 Message Date
Linus Torvalds
0e63a5c6ba It has been a relatively quiet cycle in docsland.
- As promised, the minimum Sphinx version to build the docs is now 1.7,
    and we have dropped support for Python 2 entirely.  That allowed the
    removal of a bunch of compatibility code.
 
  - A set of treewide warning fixups from Mauro that I applied after it
    became clear nobody else was going to deal with them.
 
  - The automarkup mechanism can now create cross-references from relative
    paths to RST files.
 
  - More translations, typo fixes, and warning fixes.
 
 No conflicts with any other tree as far as I know.
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Merge tag 'docs-5.12' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "It has been a relatively quiet cycle in docsland.

   - As promised, the minimum Sphinx version to build the docs is now
     1.7, and we have dropped support for Python 2 entirely. That
     allowed the removal of a bunch of compatibility code.

   - A set of treewide warning fixups from Mauro that I applied after it
     became clear nobody else was going to deal with them.

   - The automarkup mechanism can now create cross-references from
     relative paths to RST files.

   - More translations, typo fixes, and warning fixes"

* tag 'docs-5.12' of git://git.lwn.net/linux: (75 commits)
  docs: kernel-hacking: be more civil
  docs: Remove the Microsoft rhetoric
  Documentation/admin-guide: kernel-parameters: Update nohlt section
  doc/admin-guide: fix spelling mistake: "perfomance" -> "performance"
  docs: Document cross-referencing using relative path
  docs: Enable usage of relative paths to docs on automarkup
  docs: thermal: fix spelling mistakes
  Documentation: admin-guide: Update kvm/xen config option
  docs: Make syscalls' helpers naming consistent
  coding-style.rst: Avoid comma statements
  Documentation: /proc/loadavg: add 3 more field descriptions
  Documentation/submitting-patches: Add blurb about backtraces in commit messages
  Docs: drop Python 2 support
  Move our minimum Sphinx version to 1.7
  Documentation: input: define ABS_PRESSURE/ABS_MT_PRESSURE resolution as grams
  scripts/kernel-doc: add internal hyperlink to DOC: sections
  Update Documentation/admin-guide/sysctl/fs.rst
  docs: Update DTB format references
  docs: zh_CN: add iio index.rst translation
  docs/zh_CN: add iio ep93xx_adc.rst translation
  ...
2021-02-22 10:57:46 -08:00
Jonathan Neuschäfer
e1d4d66338 docs: gpio: intro: Improve HTML formatting
Currently the HTML output for Documentation/driver-api/gpio/intro.rst
doesn't look right. The lines that start with LOW or HIGH are formatted
in bold, while the next line after each is not bold.

With this patch, the HTML looks better.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15 11:43:26 +01:00
Jonathan Neuschäfer
db63c0953c docs: gpio: Fix formatting in description of gpiod_*_array_* functions
The gpiod_*_array_* functions take four arguments, not three.
Additionally, the formatting of the "value_bitmap" line results in
misformatted HTML, so fix that.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2021-02-15 11:43:25 +01:00
Joe Perches
05a5f51ca5 Documentation: Replace lkml.org links with lore
Replace the lkml.org links with lore to better use a single source
that's more likely to stay available long-term.

Done by bash script:

cvt_lkml_to_lore ()
{
    tmpfile=$(mktemp ./.cvt_links.XXXXXXX)

    header=$(echo $1 | sed 's@/lkml/@/lkml/headers/@')

    wget -qO - $header > $tmpfile
    if [[ $? == 0 ]] ; then
	link=$(grep -i '^Message-Id:' $tmpfile | head -1 | \
		   sed -r -e 's/^\s*Message-Id:\s*<\s*//' -e  's/\s*>\s*$//' -e 's@^@https://lore.kernel.org/r/@')
	#    echo "testlink: $link"
	if [ -n "$link" ] ; then
	    wget -qO - $link > /dev/null
	    if [[ $? == 0 ]] ; then
		echo $link
	    fi
	fi
    fi

    rm -f $tmpfile
}

git grep -P -o "\bhttps?://(?:www.)?lkml.org/lkml[\/\w]+" $@ |
    while read line ; do
	echo $line
	file=$(echo $line | cut -f1 -d':')
	link=$(echo $line | cut -f2- -d':')
	newlink=$(cvt_lkml_to_lore $link)
	if [[ -n "$newlink" ]] ; then
	    sed -i -e "s#\b$link\b#$newlink#" $file
	fi
    done

Link: https://lore.kernel.org/patchwork/patch/1265849/#1462688
Signed-off-by: Joe Perches <joe@perches.com>
Link: https://lore.kernel.org/r/77cdb7f32cfb087955bfc3600b86c40bed5d4104.camel@perches.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-01-11 12:47:38 -07:00
Alexandre Courbot
a0de695819 Documentation: gpio: fix typo and unclear legacy API section
The "Interacting With the Legacy GPIO Subsystem" of the documentation
was unclear at best, and even included a sentence that seems to say the
opposite of what it should say about the lifetime of the return value of
the conversion functions.

Try to clarify things a bit and hopefully make that section more
readable.

Reported-by: Andy Shevchenko <andy.shevchenko@gmail.com>
BugLink: https://stackoverflow.com/q/64455505/2511795
Signed-off-by: Alexandre Courbot <gnurou@gmail.com>
Link: https://lore.kernel.org/r/20201122092548.61979-1-gnurou@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-12-05 20:23:34 +01:00
Linus Walleij
8aa1633505 gpio: stmpe: Fix forgotten refactoring
We actually handle the gpio_irq_chip set-up properly
now despite what the comment says. Also assign this
pointer along with the rest of the gpio_irq_chip
setup code.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20201019134429.65563-1-linus.walleij@linaro.org
2020-10-28 15:51:27 +01:00
Linus Walleij
f1f37abbe6 gpio: Retire the explicit gpio irqchip code
Now that all gpiolib irqchip users have been over to use
the irqchip template, we can finally retire the old code
path and leave just one way in to the irqchip: set up the
template when registering the gpio_chip. For a while
we had two code paths for this which was a bit confusing.

This brings this work to a conclusion, there is now one
way of doing this.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Link: https://lore.kernel.org/r/20201019134046.65101-1-linus.walleij@linaro.org
2020-10-28 15:50:06 +01:00
Andy Shevchenko
4fb220da0d gpiolib: Update indentation in driver.rst for code excerpts
When TABs are being used to indent the code excerpts inside the bullet
lists some of the tools [vim in particular] fail to recognize it and
continue interpreting the special characters inside the quoted excerpt.

Update indentation in driver.rst for code excerpts to avoid
their special interpretation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20201007143817.76335-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-12 13:15:34 -06:00
Linus Walleij
8cbdc5045d gpio: Add gpio-charger to the documentation
The GPIO-based charger is another of the helpful devices built
on top of GPIO.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20200620201248.28843-1-linus.walleij@linaro.org
2020-07-07 13:52:33 +02:00
Geert Uytterhoeven
4c033b5499 gpiolib: Add support for GPIO lookup by line name
Currently a GPIO lookup table can only refer to a specific GPIO by a
tuple, consisting of a GPIO controller label and a GPIO offset inside
the controller.

However, a GPIO may also carry a line name, defined by DT or ACPI.
If present, the line name is the most use-centric way to refer to a
GPIO.  Hence add support for looking up GPIOs by line name.
Note that there is no guarantee that GPIO line names are globally
unique, so this will use the first match found.

Implement this by reusing the existing gpiod_lookup infrastructure.
Rename gpiod_lookup.chip_label to gpiod_lookup.key, to make it clear
that this field can have two meanings, and update the kerneldoc and
GPIO_LOOKUP*() macros.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Reviewed-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Link: https://lore.kernel.org/r/20200511145257.22970-4-geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-05-18 10:12:42 +02:00
Mauro Carvalho Chehab
f8c3cea834 docs: gpio: driver.rst: don't mark literal blocks twice
Two literal blocks there are marked with both "::" and

	.. code-block:: c

This causes Sphinx (2.4.1) to do the wrong thing, causing
lots of warnings:

    Documentation/driver-api/gpio/driver.rst:425: WARNING: Unexpected indentation.
    Documentation/driver-api/gpio/driver.rst:423: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:427: WARNING: Block quote ends without a blank line; unexpected unindent.
    Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:433: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:446: WARNING: Unexpected indentation.
    Documentation/driver-api/gpio/driver.rst:440: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:440: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:447: WARNING: Block quote ends without a blank line; unexpected unindent.
    Documentation/driver-api/gpio/driver.rst:449: WARNING: Definition list ends without a blank line; unexpected unindent.
    Documentation/driver-api/gpio/driver.rst:462: WARNING: Unexpected indentation.
    Documentation/driver-api/gpio/driver.rst:460: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:462: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:465: WARNING: Block quote ends without a blank line; unexpected unindent.
    Documentation/driver-api/gpio/driver.rst:467: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:467: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:467: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:471: WARNING: Inline emphasis start-string without end-string.
    Documentation/driver-api/gpio/driver.rst:478: WARNING: Inline emphasis start-string without end-string.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-03-25 09:50:44 +01:00
Linus Torvalds
6ba3d7066c This is the bulk of pin control changes for the v5.6 kernel cycle:
Core changes:
 
 - Dropped the chained IRQ setup callback into GPIOLIB as we
   got rid of the last users of that in this changeset.
 
 New drivers:
 
 - New driver for Ingenic X1830.
 
 - New driver for Freescale i.MX8MP.
 
 Driver enhancements:
 
 - Fix all remaining Intel drivers to pass their IRQ chips
   along with the GPIO chips.
 
 - Intel Baytrail allocates its irqchip dynamically.
 
 - Intel Lynxpoint is thoroughly rewritten and modernized.
 
 - Aspeed AST2600 pin muxing and configuration is much
   improved.
 
 - Qualcomm SC7180 functions are updated and wakeup interrupt
   map is provided.
 
 - A whole slew of Renesas SH-PFC cleanups and improvements.
 
 - Fix up the Intel DT bindings to use the generic YAML
   DT bindings schema. (A first user of this.)
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Merge tag 'pinctrl-v5.6-1' 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, nothing too exciting about
  this.

  Some changes hit arch/sh and arch/arm but are well isolated and
  acknowledged by the respective arch maintainers.

  Core changes:

   - Dropped the chained IRQ setup callback into GPIOLIB as we got rid
     of the last users of that in this changeset.

  New drivers:

   - New driver for Ingenic X1830.

   - New driver for Freescale i.MX8MP.

  Driver enhancements:

   - Fix all remaining Intel drivers to pass their IRQ chips along with
     the GPIO chips.

   - Intel Baytrail allocates its irqchip dynamically.

   - Intel Lynxpoint is thoroughly rewritten and modernized.

   - Aspeed AST2600 pin muxing and configuration is much improved.

   - Qualcomm SC7180 functions are updated and wakeup interrupt map is
     provided.

   - A whole slew of Renesas SH-PFC cleanups and improvements.

   - Fix up the Intel DT bindings to use the generic YAML DT bindings
     schema (a first user of this)"

* tag 'pinctrl-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
  pinctrl: madera: Remove extra blank line
  pinctrl: qcom: Don't lock around irq_set_irq_wake()
  pinctrl: mvebu: armada-37xx: use use platform api
  gpio: Drop the chained IRQ handler assign function
  pinctrl: freescale: Add i.MX8MP pinctrl driver support
  dt-bindings: imx: Add pinctrl binding doc for i.MX8MP
  pinctrl: tigerlake: Tiger Lake uses _HID enumeration
  pinctrl: sunrisepoint: Add Coffee Lake-S ACPI ID
  pinctrl: iproc: Use platform_get_irq_optional() to avoid error message
  pinctrl: dt-bindings: Fix some errors in the lgm and pinmux schema
  pinctrl: intel: Pass irqchip when adding gpiochip
  pinctrl: intel: Add GPIO <-> pin mapping ranges via callback
  pinctrl: baytrail: Replace WARN with dev_info_once when setting direct-irq pin to output
  pinctrl: baytrail: Do not clear IRQ flags on direct-irq enabled pins
  pinctrl: sunrisepoint: Add missing Interrupt Status register offset
  pinctrl: sh-pfc: Split R-Car H3 support in two independent drivers
  pinctrl: artpec6: fix __iomem on reg in set
  pinctrl: ingenic: Use devm_platform_ioremap_resource()
  pinctrl: ingenic: Factorize irq_set_type function
  pinctrl: ingenic: Remove duplicated ingenic_chip_info structures
  ...
2020-01-29 09:51:36 -08:00
Linus Walleij
72780ce5f1 gpio: Drop the chained IRQ handler assign function
gpiochip_set_chained_irqchip() would assign a chained handler
to a GPIO chip. We now populate struct gpio_irq_chip for all
chained GPIO irqchips so drop this function.

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200113220800.77817-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-01-23 15:54:32 +01:00
Linus Walleij
ddb4e53fc7 gpio: Add use guidance documentation
The text in this new document is a response to recurring questions
about the GPIO in-kernel API vs the userspace ABI. When do you use
one or the other? It can be a bit intuitive, but I tried to sum it
all up.

Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200108001712.47500-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-01-15 11:11:43 +01:00
Linus Torvalds
937d6eefc7 Here's the main documentation changes for 5.5:
- Various kerneldoc script enhancements.
 
  - More RST conversions; those are slowing down as we run out of things to
    convert, but we're a ways from done still.
 
  - Dan's "maintainer profile entry" work landed at last.  Now we just need
    to get maintainers to fill in the profiles...
 
  - A reworking of the parallel build setup to work better with a variety of
    systems (and to not take over huge systems entirely in particular).
 
  - The MAINTAINERS file is now converted to RST during the build.
    Hopefully nobody ever tries to print this thing, or they will need to
    load a lot of paper.
 
  - A script and documentation making it easy for maintainers to add Link:
    tags at commit time.
 
 Also included is the removal of a bunch of spurious CR characters.
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Merge tag 'docs-5.5a' of git://git.lwn.net/linux

Pull Documentation updates from Jonathan Corbet:
 "Here are the main documentation changes for 5.5:

   - Various kerneldoc script enhancements.

   - More RST conversions; those are slowing down as we run out of
     things to convert, but we're a ways from done still.

   - Dan's "maintainer profile entry" work landed at last. Now we just
     need to get maintainers to fill in the profiles...

   - A reworking of the parallel build setup to work better with a
     variety of systems (and to not take over huge systems entirely in
     particular).

   - The MAINTAINERS file is now converted to RST during the build.
     Hopefully nobody ever tries to print this thing, or they will need
     to load a lot of paper.

   - A script and documentation making it easy for maintainers to add
     Link: tags at commit time.

  Also included is the removal of a bunch of spurious CR characters"

* tag 'docs-5.5a' of git://git.lwn.net/linux: (91 commits)
  docs: remove a bunch of stray CRs
  docs: fix up the maintainer profile document
  libnvdimm, MAINTAINERS: Maintainer Entry Profile
  Maintainer Handbook: Maintainer Entry Profile
  MAINTAINERS: Reclaim the P: tag for Maintainer Entry Profile
  docs, parallelism: Rearrange how jobserver reservations are made
  docs, parallelism: Do not leak blocking mode to other readers
  docs, parallelism: Fix failure path and add comment
  Documentation: Remove bootmem_debug from kernel-parameters.txt
  Documentation: security: core.rst: fix warnings
  Documentation/process/howto/kokr: Update for 4.x -> 5.x versioning
  Documentation/translation: Use Korean for Korean translation title
  docs/memory-barriers.txt: Remove remaining references to mmiowb()
  docs/memory-barriers.txt/kokr: Update I/O section to be clearer about CPU vs thread
  docs/memory-barriers.txt/kokr: Fix style, spacing and grammar in I/O section
  Documentation/kokr: Kill all references to mmiowb()
  docs/memory-barriers.txt/kokr: Rewrite "KERNEL I/O BARRIER EFFECTS" section
  docs: Add initial documentation for devfreq
  Documentation: Document how to get links with git am
  docs: Add request_irq() documentation
  ...
2019-12-02 11:51:02 -08:00
Daniel W. S. Almeida
4e29b70d54 Documentation: gpio: driver.rst: Fix warnings
Fix warnings due to incorrect rst markup. Also improved the presentation
a little without changing the underlying content.

Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Link: https://lore.kernel.org/r/20191122034702.58563-1-dwlsalmeida@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-11-22 13:58:55 +01:00
Linus Walleij
fe12e94375 gpio updates for v5.5
- only get the second IRQ when there is more than one IRQ in mxc
 - move the code around in lineevent_create() for some shrinkage
 - fix formatting for GPIO docs
 - add DT binding for r8a774b1
 - convert drivers that prevously used nocache ioremap() to using regular
   devm_platform_ioremap_resource()
 - remove some redundant error messages
 - shrink object code in 104-idi-48e
 - drop an unneeded warning from gpiolib-of
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Merge tag 'gpio-v5.5-updates-for-linus-part-1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel

gpio updates for v5.5

- only get the second IRQ when there is more than one IRQ in mxc
- move the code around in lineevent_create() for some shrinkage
- fix formatting for GPIO docs
- add DT binding for r8a774b1
- convert drivers that prevously used nocache ioremap() to using regular
  devm_platform_ioremap_resource()
- remove some redundant error messages
- shrink object code in 104-idi-48e
- drop an unneeded warning from gpiolib-of
2019-10-23 13:31:36 +02:00
Mauro Carvalho Chehab
0ac624f47d docs: fix some broken references
There are a number of documentation files that got moved or
renamed. update their references.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Shannon Nelson <snelson@pensando.io>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Paul Walmsley <paul.walmsley@sifive.com> # RISC-V
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-10-10 11:25:39 -06:00
Jonathan Neuschäfer
95873fba06 docs: driver-api: bt8xxgpio: Revive dead link
www.bu3sch.de has been unusable for several years, but the same
information is available on bues.ch.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20191004164059.10397-2-j.neuschaefer@gmx.net
Acked-by: Michael Büsch <m@bues.ch>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-10-09 11:13:36 +02:00
Jonathan Neuschäfer
5f07224e0f docs: driver-api: Move bt8xxgpio to the gpio directory
Let's declutter Documentation/driver-api a bit.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20191004164059.10397-1-j.neuschaefer@gmx.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-10-09 11:12:33 +02:00
Jonathan Neuschäfer
35c3ba911a Documentation: gpio: driver: Format code blocks properly
This fixes a lot of Sphinx warnings, and makes the code blocks look nice
in HTML.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-10-03 10:27:00 +02:00
Linus Walleij
8a6abcd04e gpio: updates for v5.4
- use a helper variable for &pdev->dev in gpio-em
 - tweak the ifdefs in GPIO headers
 - fix function links in HTML docs
 - remove an unneeded error message from ixp4xx
 - use the optional clk_get in gpio-mxc instead of checking the return value
 - a couple improvements in pca953x
 - allow to build gpio-lpc32xx on non-lpc32xx targets
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Merge tag 'gpio-v5.4-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel

gpio: updates for v5.4

- use a helper variable for &pdev->dev in gpio-em
- tweak the ifdefs in GPIO headers
- fix function links in HTML docs
- remove an unneeded error message from ixp4xx
- use the optional clk_get in gpio-mxc instead of checking the return value
- a couple improvements in pca953x
- allow to build gpio-lpc32xx on non-lpc32xx targets
2019-09-03 16:04:19 +02:00
Linus Walleij
fdd61a013a gpio: Add support for hierarchical IRQ domains
Hierarchical IRQ domains can be used to stack different IRQ
controllers on top of each other.

Bring hierarchical IRQ domains into the GPIOLIB core with the
following basic idea:

Drivers that need their interrupts handled hierarchically
specify a callback to translate the child hardware IRQ and
IRQ type for each GPIO offset to a parent hardware IRQ and
parent hardware IRQ type.

Users have to pass the callback, fwnode, and parent irqdomain
before calling gpiochip_irqchip_add().

We use the new method of just filling in the struct
gpio_irq_chip before adding the gpiochip for all hierarchical
irqchips of this type.

The code path for device tree is pretty straight-forward,
while the code path for old boardfiles or anything else will
be more convoluted requireing upfront allocation of the
interrupts when adding the chip.

One specific use-case where this can be useful is if a power
management controller has top-level controls for wakeup
interrupts. In such cases, the power management controller can
be a parent to other interrupt controllers and program
additional registers when an IRQ has its wake capability
enabled or disabled.

The hierarchical irqchip helper code will only be available
when IRQ_DOMAIN_HIERARCHY is selected to GPIO chips using
this should select or depend on that symbol. When using
hierarchical IRQs, the parent interrupt controller must
also be hierarchical all the way up to the top interrupt
controller wireing directly into the CPU, so on systems
that do not have this we can get rid of all the extra
code for supporting hierarchical irqs.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Lina Iyer <ilina@codeaurora.org>
Cc: Jon Hunter <jonathanh@nvidia.com>
Cc: Sowjanya Komatineni <skomatineni@nvidia.com>
Cc: Bitan Biswas <bbiswas@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Cc: David Daney <david.daney@cavium.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Brian Masney <masneyb@onstation.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Brian Masney <masneyb@onstation.org>
Co-developed-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20190808123242.5359-1-linus.walleij@linaro.org
2019-08-15 09:44:19 +02:00
Jeremy Cline
d9e5ebac18 Documentation: gpio: fix function links in the HTML docs
The shorthand [_data] and [devm_] cause the HTML documentation to not
link to the function documentation properly. This expands the references
to the complete function names with the exception of
devm_gpiochip_remove() which was dropped by commit 48207d7595 ("gpio:
drop devm_gpiochip_remove()").

Signed-off-by: Jeremy Cline <jcline@redhat.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-07-30 10:16:32 +02:00
Mauro Carvalho Chehab
fe34c89d25 docs: driver-model: move it to the driver-api book
The audience for the Kernel driver-model is clearly Kernel hackers.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice driver changes
2019-07-15 11:03:02 -03:00
Linus Torvalds
f632a8170a Driver Core and debugfs changes for 5.3-rc1
Here is the "big" driver core and debugfs changes for 5.3-rc1
 
 It's a lot of different patches, all across the tree due to some api
 changes and lots of debugfs cleanups.  Because of this, there is going
 to be some merge issues with your tree at the moment, I'll follow up
 with the expected resolutions to make it easier for you.
 
 Other than the debugfs cleanups, in this set of changes we have:
 	- bus iteration function cleanups (will cause build warnings
 	  with s390 and coresight drivers in your tree)
 	- scripts/get_abi.pl tool to display and parse Documentation/ABI
 	  entries in a simple way
 	- cleanups to Documenatation/ABI/ entries to make them parse
 	  easier due to typos and other minor things
 	- default_attrs use for some ktype users
 	- driver model documentation file conversions to .rst
 	- compressed firmware file loading
 	- deferred probe fixes
 
 All of these have been in linux-next for a while, with a bunch of merge
 issues that Stephen has been patient with me for.  Other than the merge
 issues, functionality is working properly in linux-next :)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core and debugfs updates from Greg KH:
 "Here is the "big" driver core and debugfs changes for 5.3-rc1

  It's a lot of different patches, all across the tree due to some api
  changes and lots of debugfs cleanups.

  Other than the debugfs cleanups, in this set of changes we have:

   - bus iteration function cleanups

   - scripts/get_abi.pl tool to display and parse Documentation/ABI
     entries in a simple way

   - cleanups to Documenatation/ABI/ entries to make them parse easier
     due to typos and other minor things

   - default_attrs use for some ktype users

   - driver model documentation file conversions to .rst

   - compressed firmware file loading

   - deferred probe fixes

  All of these have been in linux-next for a while, with a bunch of
  merge issues that Stephen has been patient with me for"

* tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits)
  debugfs: make error message a bit more verbose
  orangefs: fix build warning from debugfs cleanup patch
  ubifs: fix build warning after debugfs cleanup patch
  driver: core: Allow subsystems to continue deferring probe
  drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT
  arch_topology: Remove error messages on out-of-memory conditions
  lib: notifier-error-inject: no need to check return value of debugfs_create functions
  swiotlb: no need to check return value of debugfs_create functions
  ceph: no need to check return value of debugfs_create functions
  sunrpc: no need to check return value of debugfs_create functions
  ubifs: no need to check return value of debugfs_create functions
  orangefs: no need to check return value of debugfs_create functions
  nfsd: no need to check return value of debugfs_create functions
  lib: 842: no need to check return value of debugfs_create functions
  debugfs: provide pr_fmt() macro
  debugfs: log errors when something goes wrong
  drivers: s390/cio: Fix compilation warning about const qualifiers
  drivers: Add generic helper to match by of_node
  driver_find_device: Unify the match function with class_find_device()
  bus_find_device: Unify the match callback with class_find_device
  ...
2019-07-12 12:24:03 -07:00
Linus Torvalds
e9a83bd232 It's been a relatively busy cycle for docs:
- A fair pile of RST conversions, many from Mauro.  These create more
    than the usual number of simple but annoying merge conflicts with other
    trees, unfortunately.  He has a lot more of these waiting on the wings
    that, I think, will go to you directly later on.
 
  - A new document on how to use merges and rebases in kernel repos, and one
    on Spectre vulnerabilities.
 
  - Various improvements to the build system, including automatic markup of
    function() references because some people, for reasons I will never
    understand, were of the opinion that :c:func:``function()`` is
    unattractive and not fun to type.
 
  - We now recommend using sphinx 1.7, but still support back to 1.4.
 
  - Lots of smaller improvements, warning fixes, typo fixes, etc.
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Merge tag 'docs-5.3' of git://git.lwn.net/linux

Pull Documentation updates from Jonathan Corbet:
 "It's been a relatively busy cycle for docs:

   - A fair pile of RST conversions, many from Mauro. These create more
     than the usual number of simple but annoying merge conflicts with
     other trees, unfortunately. He has a lot more of these waiting on
     the wings that, I think, will go to you directly later on.

   - A new document on how to use merges and rebases in kernel repos,
     and one on Spectre vulnerabilities.

   - Various improvements to the build system, including automatic
     markup of function() references because some people, for reasons I
     will never understand, were of the opinion that
     :c:func:``function()`` is unattractive and not fun to type.

   - We now recommend using sphinx 1.7, but still support back to 1.4.

   - Lots of smaller improvements, warning fixes, typo fixes, etc"

* tag 'docs-5.3' of git://git.lwn.net/linux: (129 commits)
  docs: automarkup.py: ignore exceptions when seeking for xrefs
  docs: Move binderfs to admin-guide
  Disable Sphinx SmartyPants in HTML output
  doc: RCU callback locks need only _bh, not necessarily _irq
  docs: format kernel-parameters -- as code
  Doc : doc-guide : Fix a typo
  platform: x86: get rid of a non-existent document
  Add the RCU docs to the core-api manual
  Documentation: RCU: Add TOC tree hooks
  Documentation: RCU: Rename txt files to rst
  Documentation: RCU: Convert RCU UP systems to reST
  Documentation: RCU: Convert RCU linked list to reST
  Documentation: RCU: Convert RCU basic concepts to reST
  docs: filesystems: Remove uneeded .rst extension on toctables
  scripts/sphinx-pre-install: fix out-of-tree build
  docs: zh_CN: submitting-drivers.rst: Remove a duplicated Documentation/
  Documentation: PGP: update for newer HW devices
  Documentation: Add section about CPU vulnerabilities for Spectre
  Documentation: platform: Delete x86-laptop-drivers.txt
  docs: Note that :c:func: should no longer be used
  ...
2019-07-09 12:34:26 -07:00
Geert Uytterhoeven
01f14c5259 Documentation: gpio: Fix reference to gpiod_get_array()
The function is called gpiod_get_array(), not gpiod_array_get().

Fixes: 77588c14ac ("gpiolib: Pass array info to get/set array functions")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20190701141005.24631-1-geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-07-04 09:32:54 +02:00
Mauro Carvalho Chehab
4489f161b7 docs: driver-model: convert docs to ReST and rename to *.rst
Convert the various documents at the driver-model, preparing
them to be part of the driver-api book.

The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> # ice
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-21 15:47:26 +02:00
Mauro Carvalho Chehab
cb1aaebea8 docs: fix broken documentation links
Mostly due to x86 and acpi conversion, several documentation
links are still pointing to the old file. Fix them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>
Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Bhupesh Sharma <bhsharma@redhat.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-08 13:42:13 -06:00
Mauro Carvalho Chehab
0aa3ebffc4 docs: gpio: driver.rst: fix a bad tag
With ReST, [foo]_ means a reference to foo, causing this warning:

    Documentation/driver-api/gpio/driver.rst:419: WARNING: Unknown target name: "devm".

Fix it by using a literal for the name.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-06-07 22:56:42 +02:00
Luca Ceresoli
919c46c89b Documentation: gpio: remove duplicated lines
The 'default (active high)' lines are repeated twice. Avoid people stare at
their screens looking for differences.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-05-28 10:28:15 +02:00
Linus Walleij
4b3d50062c gpio: Fix minor grammar errors in documentation
This fixes up some of my own mistakes when I stressed to refresh
the documentation.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-05-28 10:28:15 +02:00
Linus Walleij
0fbee1df20 gpio: Update documentation
Strictify the language a bit, move things around, make proper
headings, mention pull-up and pull-down, expand unreadable
acronyms etc.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-05-07 16:32:12 +02:00
Uwe Kleine-König
9aac1e336c Documentation: gpio: legacy: Don't use POLLERR for poll(2)
According to the manpage of poll(2) and also looking at the respective
syscall providing POLLERR in .events is a no-op. So don't recommend
using it.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-20 10:53:52 +01:00
Linus Walleij
8fab3d713c gpio updates for v5.1
- support for a new variant of pca953x
 - documentation fix from Wolfram
 - some tegra186 name changes
 - two minor fixes for madera and altera-a10sr
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Merge tag 'gpio-v5.1-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel

gpio updates for v5.1

- support for a new variant of pca953x
- documentation fix from Wolfram
- some tegra186 name changes
- two minor fixes for madera and altera-a10sr
2019-02-17 21:59:33 +01:00
Wolfram Sang
f3463daab2 Documentation: gpio: driver: fix wire name for I2C
Typo: the data line is called "SDA" not "SCA".

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-02-14 15:14:38 +01:00
Randy Dunlap
a44aec0b4a Documenation: driver-api: fix gpio/board.rst warning
Fix markup warning: insert a blank line before the list.

Documentation/driver-api/gpio/board.rst:209: WARNING: Unexpected indentation.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-02-11 09:09:44 +01:00
Linus Walleij
21abf10381 gpio: Pass a flag to gpiochip_request_own_desc()
Before things go out of hand, make it possible to pass
flags when requesting "own" descriptors from a gpio_chip.
This is necessary if the chip wants to request a GPIO with
active low semantics, for example.

Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Roger Quadros <rogerq@ti.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-12-14 14:24:33 +01:00
Randy Dunlap
7a42781eee gpio: fix kernel-doc after devres.c file rename
Fix gpio kernel-doc generation after rename of the devres.c file.
Fixes these errors & warning:

Error: Cannot open file ../drivers/gpio/devres.c
Error: Cannot open file ../drivers/gpio/devres.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -export ../drivers/gpio/devres.c' failed with return code 2

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-10-10 13:49:15 +02:00
Geert Uytterhoeven
cf9af0d578 gpio: Propagate errors from gpiod_set_array_value_complex()
Internal helper function gpiod_set_array_value_complex() was changed to
return an error value, but not all gpiolib callers were updated to
propagate the new error up.

Fixes: 3027743f83 ("gpio: Remove VLA from gpiolib")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-10-01 12:22:15 +02:00
Geert Uytterhoeven
c2937668d1 Documentation: gpio: Fix return type of gpiod_set_raw_array_value*()
The return type of gpiod_set_raw_array_value() and
gpiod_set_raw_array_value_cansleep() was changed from void to int, but
the doc update was forgotten.

Fixes: 3027743f83 ("gpio: Remove VLA from gpiolib")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-10-01 12:21:38 +02:00
Janusz Krzysztofik
c4c958aa64 gpiolib: Fix array members of same chip processed separately
New code introduced by commit bf9346f5d4 ("gpiolib: Identify arrays
matching GPIO hardware") forcibly tries to find an array member which
has its array index number equal to its hardware pin number and set
up an array info for possible fast bitmap processing of all arrray
pins belonging to that chip which also satisfy that numbering rule.

Depending on array content, it may happen that consecutive array
members which belong to the same chip but don't have array indexes
equal to their pin hardware numbers will be split into groups, some of
them processed together via the fast bitmap path, and rest of them
separetely.  However, applications may expect all those pins being
processed together with a single call to .set_multiple() chip callback,
like that was done before the change.

Limit applicability of fast bitmap processing path to cases where all
pins of consecutive array members starting from 0 which belong to the
same chip have their hardware numbers equal to their corresponding
array indexes.  That should still speed up processing of applications
using whole GPIO banks as I/O ports, while not breaking simultaneous
manipulation of consecutive pins of the same chip which don't follow
the equal numbering rule.

Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-24 13:47:05 +02:00
Linus Walleij
a2ab170374 Merge branch 'ib-array-bitmaps' into devel 2018-09-20 08:36:36 -07:00
Janusz Krzysztofik
b17566a6b0 gpiolib: Implement fast processing path in get/set array
Certain GPIO descriptor arrays returned by gpio_get_array() may contain
information on direct mapping of array members to pins of a single GPIO
chip in hardware order.  In such cases, bitmaps of values can be passed
directly from/to the chip's .get/set_multiple() callbacks without
wasting time on iterations.

Add respective code to gpiod_get/set_array_bitmap_complex() functions.
Pins not applicable for fast path are processed as before, skipping
over the 'fast' ones.

Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-13 11:17:23 +02:00
Janusz Krzysztofik
77588c14ac gpiolib: Pass array info to get/set array functions
In order to make use of array info obtained from gpiod_get_array() and
speed up processing of arrays matching single GPIO chip layout, that
information must be passed to get/set array functions.  Extend the
functions' API with that additional parameter and update all users.
Pass NULL if a user builds an array itself from single GPIOs.

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Peter Korsgaard <peter.korsgaard@barco.com>
Cc: Peter Rosin <peda@axentia.se>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Rojhalat Ibrahim <imr@rtschenk.de>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Yegor Yefremov <yegorslists@googlemail.com>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-13 11:16:54 +02:00
Janusz Krzysztofik
bf9346f5d4 gpiolib: Identify arrays matching GPIO hardware
Certain GPIO array lookup results may map directly to GPIO pins of a
single GPIO chip in hardware order.  If that condition is recognized
and handled efficiently, significant performance gain of get/set array
functions may be possible.

While processing a request for an array of GPIO descriptors, identify
those which represent corresponding pins of a single GPIO chip.  Skip
over pins which require open source or open drain special processing.
Moreover, identify pins which require inversion.  Pass a pointer to
that information with the array to the caller so it can benefit from
enhanced performance as soon as get/set array functions can accept and
make efficient use of it.

Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-13 11:16:12 +02:00
Janusz Krzysztofik
b9762bebc6 gpiolib: Pass bitmaps, not integer arrays, to get/set array
Most users of get/set array functions iterate consecutive bits of data,
usually a single integer, while processing array of results obtained
from, or building an array of values to be passed to those functions.
Save time wasted on those iterations by changing the functions' API to
accept bitmaps.

All current users are updated as well.

More benefits from the change are expected as soon as planned support
for accepting/passing those bitmaps directly from/to respective GPIO
chip callbacks if applicable is implemented.

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
Cc: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Peter Korsgaard <peter.korsgaard@barco.com>
Cc: Peter Rosin <peda@axentia.se>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Rojhalat Ibrahim <imr@rtschenk.de>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Michael Hennerich <Michael.Hennerich@analog.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Hartmut Knaack <knaack.h@gmx.de>
Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Yegor Yefremov <yegorslists@googlemail.com>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-13 11:15:30 +02:00
Hans Verkuil
4f8183ae70 gpio/driver.rst: document gpiochip_disable/enable_irq()
Document these new functions.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-10 08:57:01 +02:00
Mauro Carvalho Chehab
5fb94e9ca3 docs: Fix some broken references
As we move stuff around, some doc references are broken. Fix some of
them via this script:
	./scripts/documentation-file-ref-check --fix

Manually checked if the produced result is valid, removing a few
false-positives.

Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15 18:10:01 -03:00