Commit Graph

932811 Commits

Author SHA1 Message Date
Andy Shevchenko
a1cdaa64aa gpio: crystalcove: Free IRQ on error path
It appears that all, but request_irq(), calls in the driver are device managed.
In unlikely case of devm_gpiochip_add_data() failure the IRQ left requested.
Free IRQ on error path by switching to devm_request_threaded_irq() API.

Byproduct of this change is a drop of ->remove() callback completely.

Fixes: 945e72db36 ("gpio: crystalcove: Use irqchip template")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200728125504.27786-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:25:02 +02:00
Andy Shevchenko
2a93a0da06 gpio: pca953x: Request IRQ after all initialisation done
There is logically better to request IRQ when we initialise all structures.
Align the driver with the rest on the same matter.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200728125504.27786-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:25:02 +02:00
Ahmad Fatoum
5f402bb175 gpio: don't use same lockdep class for all devm_gpiochip_add_data users
Commit 959bc7b22b ("gpio: Automatically add lockdep keys") documents
in its commits message its intention to "create a unique class key for
each driver".

It does so by having gpiochip_add_data add in-place the definition of
two static lockdep classes for LOCKDEP use. That way, every caller of
the macro adds their gpiochip with unique lockdep classes.

There are many indirect callers of gpiochip_add_data, however, via
use of devm_gpiochip_add_data. devm_gpiochip_add_data has external
linkage and all its users will share the same lockdep classes, which
probably is not intended.

Fix this by replicating the gpio_chip_add_data statics-in-macro for
the devm_ version as well.

Fixes: 959bc7b22b ("gpio: Automatically add lockdep keys")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200731123835.8003-1-a.fatoum@pengutronix.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-08-04 01:22:02 +02:00
Linus Walleij
bb58a47a12 gpio: max732x: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Cc: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20200726221259.133536-1-linus.walleij@linaro.org
2020-08-04 01:12:43 +02:00
Linus Walleij
beb3fb4165 gpio: stmpe: Move chip registration
Make sure to register the GPIO chip after requesting the
interrupt and setting up the IRQ members of the irqchip.

Fixes: 9745079609 ("gpio: stmpe: Use irqchip template")
Reported-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Patrice Chotard <patrice.chotard@st.com>
Link: https://lore.kernel.org/r/20200728072706.348725-1-linus.walleij@linaro.org
2020-08-04 01:07:23 +02:00
Linus Walleij
b470cef1ff gpio: rcar: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit call to gpiochip_irqchip_add().

The irqchip is instead added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Biju Das <biju.das@bp.renesas.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200722113141.243163-1-linus.walleij@linaro.org
2020-07-30 00:13:10 +02:00
Michael Walle
a070bdbbb0 gpio: regmap: fix type clash
GPIO_REGMAP_ADDR_ZERO() cast to unsigned long but the actual config
parameters are unsigned int. We use unsigned int here because that is
the type which is used by the underlying regmap.

Fixes: ebe363197e ("gpio: add a reusable generic gpio_chip using regmap")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20200725232337.27581-1-michael@walle.cc
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-27 00:27:54 +02:00
Colton Lewis
8fc3ed3a47 gpio: Correct kernel-doc inconsistency
Fix kernel-doc comment to match parameter name change "chip" to "gc"
in gpiochip_add_data function.

Signed-off-by: Colton Lewis <colton.w.lewis@protonmail.com>
Link: https://lore.kernel.org/r/20200723095658.234668-1-colton.w.lewis@protonmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-23 15:18:09 +02:00
Linus Walleij
4530a840e7 gpio: pci-idio-16: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit call to gpiochip_irqchip_add().

The irqchip is instead added while adding the gpiochip.
Also move the IRQ initialization to the special .init_hw()
callback.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20200722110649.202223-1-linus.walleij@linaro.org
2020-07-23 15:11:26 +02:00
Linus Walleij
866e863edb gpio: pcie-idio-24: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit call to gpiochip_irqchip_add().

The irqchip is instead added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20200722110027.192782-1-linus.walleij@linaro.org
2020-07-23 15:10:55 +02:00
Linus Walleij
82e4613d3d gpio: 104-idio-16: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit call to gpiochip_irqchip_add().

The irqchip is instead added while adding the gpiochip.
Also move the IRQ initialization to the special .init_hw()
callback.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20200722105517.186137-1-linus.walleij@linaro.org
2020-07-23 15:10:25 +02:00
Linus Walleij
44b01cf5d2 gpio: 104-idi-48: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit call to gpiochip_irqchip_add().

The irqchip is instead added while adding the gpiochip.
Also move the IRQ initialization to the special .init_hw()
callback.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20200722104820.174654-1-linus.walleij@linaro.org
2020-07-23 15:09:54 +02:00
Linus Walleij
2fa1d392cd gpio: 104-dio-48e: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit call to gpiochip_irqchip_add().

The irqchip is instead added while adding the gpiochip.
Also move the IRQ initialization to the special .init_hw()
callback.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20200722103915.162156-1-linus.walleij@linaro.org
2020-07-23 15:09:26 +02:00
Linus Walleij
fceb7ab385 gpio: ws16c48: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit call to gpiochip_irqchip_add().

The irqchip is instead added while adding the gpiochip.
Also move the IRQ initialization to the special .init_hw()
callback.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20200722101938.151265-1-linus.walleij@linaro.org
2020-07-23 15:08:55 +02:00
Drew Fustini
bde8c0e64c gpio: omap: improve coding style for pin config flags
Change the handling of pin config flags from if/else to switch
statement to make the code more readable and cleaner.

Suggested-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Drew Fustini <drew@beagleboard.org>
Acked-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200722120755.230741-1-drew@beagleboard.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-23 15:05:23 +02:00
Linus Walleij
ecb55df8f3 gpio: dln2: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add(). The irqchip is
instead added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com>
Cc: Daniel Baluta <daniel.baluta@gmail.com>
Cc: Octavian Purdila <octavian.purdila@nxp.com>
Link: https://lore.kernel.org/r/20200722073426.38890-1-linus.walleij@linaro.org
2020-07-23 15:03:25 +02:00
Linus Walleij
ce8672c20b intel-gpio for v5.9-1
* Move GPIO PMIC drivers to use IRQ chip template
 * Introduce for_each_requested_gpio() and convert existing users
 * Replace unsigned by unsigned int in few drivers
 * Fix an issue in kernel doc that validator complains about
 * Move to verbose debug level the IRQ status message in gpio-pch
 
 The following is an automated git shortlog grouped by driver:
 
 ARM/orion/gpio:
  -  Make use of for_each_requested_gpio()
 
 crystalcove:
  -  Use irqchip template
  -  changed every 'unsigned' to 'unsigned int'
 
 gpiolib:
  -  Introduce for_each_requested_gpio_in_range() macro
 
 gpio-ml-ioh:
  -  Fix missing ':' in 'struct ioh_gpio_reg_data
 
 ich:
  -  changed every 'unsigned' to 'unsigned int'
 
 mvebu:
  -  Make use of for_each_requested_gpio()
 
 pch:
  -  Add a blank line between declaration and code
  -  changed every 'unsigned' to 'unsigned int'
  -  Move IRQ status message to verbose debug level
 
 pinctrl:
  -  at91: Make use of for_each_requested_gpio()
 
 sch:
  -  Add a blank line between declaration and code
  -  changed every 'unsigned' to 'unsigned int'
 
 wcove:
  -  Use irqchip template
 
 xra1403:
  -  Make use of for_each_requested_gpio()
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEqaflIX74DDDzMJJtb7wzTHR8rCgFAl8YPvwACgkQb7wzTHR8
 rCgX6w/+MOk7PmVOHlYNrc7UiOnvVxpMbYRW/UpAXJ9r60FqnpeiwDh7Vqdonom5
 TfQUfskHdKTQR1Ybo93HPJaKtxo601yu9PbV00pfB1uN9Nmj6pxQ+gXeFmV4Eov7
 gKlqaKW2zIjF6Rrbs8Xa7O4UDnXLgIqKOguuGWyrHBywfkQKIz1i4/x0w/IOvyB6
 ZM9n2iiEAysTGDOYsEvjKHAHgtruz+nQfqF5vWy6/6KBefuIUiHI6tbPXwkrhZ+x
 xNsbkoyQvL95o0naDLfXoL8xZ9gxeQfr041405I96kZwtlOHsJSEule7fR39r4A6
 4KKICJ0MwC03NyOaVpKeElffA1rfreZhNACFHEylcjauYrfEC84wXCSL0hOfa2Pe
 7PBMlRMQmrO7MkBxlihsy0oUip+fDG+XoANnB/51dX62AEJTjNs8Adh4aI2adaXh
 11bi9GjLxUJ+Myopf1wF5lWrDPRvXviEWFeMxPNAS/lJSWkCnAtm9UvZOPTgl4Ps
 +vFs/oiORmsYUELcaVwnOsNsoLB+DOFHdH5K20H2n0fjch2th/n2Jph6lBcY6D9W
 50pKighf/92gWMeOllTha0I/EOFNCBi57DnUsuiNkuZ7lQd0O05MAJ4GBsOmBuF8
 sc4euGVU4mIvdn+bMNuN8c1vXJAWmPBfb1QiChXv9/BEVjZt0uI=
 =txvs
 -----END PGP SIGNATURE-----

Merge tag 'intel-gpio-v5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into devel

intel-gpio for v5.9-1

* Move GPIO PMIC drivers to use IRQ chip template
* Introduce for_each_requested_gpio() and convert existing users
* Replace unsigned by unsigned int in few drivers
* Fix an issue in kernel doc that validator complains about
* Move to verbose debug level the IRQ status message in gpio-pch

The following is an automated git shortlog grouped by driver:

ARM/orion/gpio:
 -  Make use of for_each_requested_gpio()

crystalcove:
 -  Use irqchip template
 -  changed every 'unsigned' to 'unsigned int'

gpiolib:
 -  Introduce for_each_requested_gpio_in_range() macro

gpio-ml-ioh:
 -  Fix missing ':' in 'struct ioh_gpio_reg_data

ich:
 -  changed every 'unsigned' to 'unsigned int'

mvebu:
 -  Make use of for_each_requested_gpio()

pch:
 -  Add a blank line between declaration and code
 -  changed every 'unsigned' to 'unsigned int'
 -  Move IRQ status message to verbose debug level

pinctrl:
 -  at91: Make use of for_each_requested_gpio()

sch:
 -  Add a blank line between declaration and code
 -  changed every 'unsigned' to 'unsigned int'

wcove:
 -  Use irqchip template

xra1403:
 -  Make use of for_each_requested_gpio()
2020-07-22 16:01:00 +02:00
Abanoub Sameh
4941b8dedb gpio: sch: Add a blank line between declaration and code
Added a lined between a declaration and other statements according to the
kernel coding style.

Signed-off-by: Abanoub Sameh <abanoubsameh@protonmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-22 16:00:27 +03:00
Abanoub Sameh
2c58e44a42 gpio: sch: changed every 'unsigned' to 'unsigned int'
Changed 'unsigned' to 'unsigned int'.
This makes the code more uniform, and compliant with the kernel coding style.

Signed-off-by: Abanoub Sameh <abanoubsameh@protonmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-22 16:00:27 +03:00
Abanoub Sameh
ae84f15c65 gpio: ich: changed every 'unsigned' to 'unsigned int'
Changed 'unsigned' to 'unsigned int'.
This makes the code more uniform, and compliant with the kernel coding style.

Signed-off-by: Abanoub Sameh <abanoubsameh@protonmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-22 16:00:27 +03:00
Linus Walleij
22f61d4e6f gpio: wcove: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Cc: Bin Gao <bin.gao@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-22 16:00:27 +03:00
Linus Walleij
945e72db36 gpio: crystalcove: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-22 16:00:27 +03:00
Abanoub Sameh
3abbdbe3dc gpio: crystalcove: changed every 'unsigned' to 'unsigned int'
Changed 'unsigned' to 'unsigned int'.
This makes the code more uniform, and compliant with the kernel coding style.

Signed-off-by: Abanoub Sameh <abanoubsameh@protonmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-21 19:12:57 +03:00
Abanoub Sameh
37ceab74f1 gpio: pch: Add a blank line between declaration and code
Added a lined between a declaration and other statements according to the
kernel coding style.

Signed-off-by: Abanoub Sameh <abanoubsameh@protonmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-21 19:12:57 +03:00
Abanoub Sameh
0c106a23d6 gpio: pch: changed every 'unsigned' to 'unsigned int'
Changed 'unsigned' to 'unsigned int'.
This makes the code more uniform, and compliant with the kernel coding style.

Signed-off-by: Abanoub Sameh <abanoubsameh@protonmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-21 19:12:57 +03:00
Linus Walleij
edee3bc658 gpio: pca953x: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Adam Ford <aford173@gmail.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20200717144040.63253-1-linus.walleij@linaro.org
2020-07-20 16:05:57 +02:00
Drew Fustini
75dec56710 gpio: omap: handle pin config bias flags
Modify omap_gpio_set_config() to handle pin config bias flags by calling
gpiochip_generic_config().

The pin group for the gpio line must have the corresponding pinconf
properties:

PIN_CONFIG_BIAS_PULL_UP requires "pinctrl-single,bias-pullup"
PIN_CONFIG_BIAS_PULL_DOWN requires "pinctrl-single,bias-pulldown"

This is necessary for pcs_pinconf_set() to find the requested bias
parameter in the PIN_MAP_TYPE_CONFIGS_GROUP pinctrl map.

Signed-off-by: Drew Fustini <drew@beagleboard.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20200715213738.1640030-1-drew@beagleboard.org
Link: https://lore.kernel.org/r/20200717194043.1774643-1-drew@beagleboard.org
2020-07-20 16:04:41 +02:00
Linus Walleij
50787be3ad gpio: pcf857x: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Anders Darander <anders@chargestorm.se>
Cc: Roger Quadros <rogerq@ti.com>
Link: https://lore.kernel.org/r/20200717144835.68150-1-linus.walleij@linaro.org
2020-07-20 15:56:40 +02:00
Linus Walleij
dfc3a26deb gpio: adp5588: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Cc: Nikolaus Voss <nv@vosn.de>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Link: https://lore.kernel.org/r/20200716150502.195821-1-linus.walleij@linaro.org
2020-07-20 15:47:50 +02:00
Linus Walleij
565a0e9ab8 gpio: adnp: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Roland Stigge <stigge@antcom.de>
Cc: Lars Poeschel <poeschel@lemonage.de>
Link: https://lore.kernel.org/r/20200716120318.127176-1-linus.walleij@linaro.org
2020-07-20 15:34:59 +02:00
Linus Walleij
9745079609 gpio: stmpe: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Alexandre TORGUE <alexandre.torgue@st.com>
Link: https://lore.kernel.org/r/20200716100638.112451-1-linus.walleij@linaro.org
2020-07-20 15:34:17 +02:00
Linus Walleij
0fcfd9aa61 gpio: tc35892: Use irqchip template
This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add_nested() and
gpiochip_set_nested_irqchip(). The irqchip is instead
added while adding the gpiochip.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200716093459.76378-1-linus.walleij@linaro.org
2020-07-20 15:33:34 +02:00
Linus Walleij
80606cb241 gpio: max77620: Use helper variable and clarify
Most other drivers fill out the gpio_irq_chip using a
struct gpio_irq_chip *girq helper variable for ease of
reading.

We also make a habit of explicitly assigning NULL and
zero to the parent IRQs when using ordinary IRQ handlers
in the driver, mostly for code readability and
maintenance.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Cc: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200716092835.69176-1-linus.walleij@linaro.org
2020-07-17 14:03:38 +02:00
Andy Shevchenko
761b5c30c2 gpio: mmio: replace open-coded for_each_set_bit()
Use for_each_set_bit() instead of open-coding it to simplify the code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200713154429.23662-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 15:07:18 +02:00
Sungbo Eo
4dc5794cf2 gpio: pca9570: Add DT bindings for NXP PCA9570
This patch adds device tree bindings for the NXP PCA9570,
a 4-bit I2C GPO expander.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200630160934.1197066-1-mans0n@gorani.run
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 14:36:46 +02:00
Sungbo Eo
16d44b6085 gpio: pca9570: add GPO driver for PCA9570
NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality.
Its ports are controlled only by a data byte without register address.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Datasheet: https://www.nxp.com/docs/en/data-sheet/PCA9570.pdf
Link: https://lore.kernel.org/r/20200709134829.216393-1-mans0n@gorani.run
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 14:35:12 +02:00
Dmitry Osipenko
e6827bc3fa gpio: max77620: Initialize hardware state of interrupts
I noticed on Nexus 7 that after rebooting from downstream kernel to
upstream, the GPIO interrupt is triggering non-stop despite interrupts
being disabled for all of GPIOs. This happens because Nexus 7 uses a
soft-reboot, meaning that bootloader should take care of resetting
hardware, but the bootloader doesn't do it well. As a result, GPIO
interrupt may be left ON at a boot time. Let's mask all GPIO interrupts
at the driver's initialization time in order to resolve the issue.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Link: https://lore.kernel.org/r/20200709171203.12950-7-digetx@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 10:50:40 +02:00
Dmitry Osipenko
15d9e7e847 gpio: max77620: Use irqchip template
This change addresses one of the GPIO-core TODOs for the MAX77620 driver
which requires modern drivers to use the irqchip template. Instead of
using the GPIO's irqchip-helpers for creating the IRQ domain, the
gpio_irq_chip structure is now filled by the driver itself and then
gpiochip_add_data() takes care of instantiating the IRQ domain for us.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Link: https://lore.kernel.org/r/20200709171203.12950-6-digetx@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 10:50:40 +02:00
Dmitry Osipenko
c607e5e2e4 gpio: max77620: Don't shadow error code of platform_get_irq()
The platform_get_irq() returns a positive interrupt number on success and
negative error code on failure (zero shouldn't ever happen in practice, it
would produce a noisy warning). Hence let's return the error code directly
instead of overriding it with -ENODEV.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Link: https://lore.kernel.org/r/20200709171203.12950-5-digetx@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 10:50:40 +02:00
Dmitry Osipenko
78934d885e gpio: max77620: Don't set of_node
The gpiochip_add_data() takes care of setting the of_node to the parent's
device of_node, hence there is no need to do it manually in the driver's
code. This patch corrects the parent's device pointer and removes the
unnecessary setting of the of_node.

Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Link: https://lore.kernel.org/r/20200709171203.12950-4-digetx@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 10:50:40 +02:00
Dmitry Osipenko
2a5e6f7eed gpio: max77620: Fix missing release of interrupt
The requested interrupt is never released by the driver. Fix this by
using the resource-managed variant of request_threaded_irq().

Fixes: ab3dd9cc24 ("gpio: max77620: Fix interrupt handling")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: <stable@vger.kernel.org> # 5.5+
Link: https://lore.kernel.org/r/20200709171203.12950-3-digetx@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 10:50:40 +02:00
Dmitry Osipenko
4ee82256ee gpio: max77620: Replace 8 with MAX77620_GPIO_NR
The MAX77620_GPIO_NR enum value represents the total number of GPIOs,
let's use it instead of a raw value in order to improve the code's
readability a tad.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Link: https://lore.kernel.org/r/20200709171203.12950-2-digetx@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-07-16 10:50:40 +02:00
Linus Walleij
1752911c6d gpio updates for v5.9 - part 2
- several improvements and minor tweaks to the GPIO character device code
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEFp3rbAvDxGAT0sefEacuoBRx13IFAl8KyGQACgkQEacuoBRx
 13L/IA/+PTpXnNNWZ7xu8elXRG5WV7+5QQM4TpNDmdac7CHYYej6B3iF60dtNtG3
 pneS87GICkDhYaYjXKHkCX7OYzEHWrxY7E3avlUavsAMkyWTdzClkl+e+7ADaPsn
 2n9UeeZ5p694m2w9vcamlEXRulHoR9j94pzZyDk6ps8Lsm9TGschasZzefeTJie/
 oRo8SMx88BVmYB3a9bwZL6K92YdY3fIQaNZ/rMV56P0Vc57vW7ENWQBTVPMS6PAF
 o/Kr2I0Zmdl+Z5TZWXaPtrry173y+DJ4XziCR0h6jHSPNDu1PIeC3zbKI5h/6d0B
 nuFVarLmhD9wE8MOPP98WBqgOIqOgWfyIy5FNQSZ9YNe3G06XsvLkoPqEXB4oLwf
 XoQpoC3de9tBc0TyEaqTFRgEn79ni0QAZP0W11CeGU57NKYfshZIBwRubIF+wp9J
 MSH1zH0zrWqYcW7GN2r9wg2+Vm32XSu9z2HSfqtBeftPXyz9wjXiBcj9894c8n1q
 l7CDDivTnu3s6V1gBHnGZWloCwTcKrnOEeonXZaDhmOOW2dcbifJ1LxSiBKzhi4T
 W+L4fSrDxRRCVyzxgxijngufd61fj3KLc9aOLLJIdb7h4HnEDqtLOxB+g0IHlNpV
 HLOI+4XoapjKxPz2iu3ZMoxhdX4ywgGmqDJQAtKVoG2IVDdYthw=
 =HAhm
 -----END PGP SIGNATURE-----

Merge tag 'gpio-updates-for-v5.9-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel

gpio updates for v5.9 - part 2

- several improvements and minor tweaks to the GPIO character device code
2020-07-13 23:20:33 +02:00
Kent Gibson
df51f402e3 tools: gpio: fix spurious close warning in gpio-event-mon
Fix bogus close warning that occurs when opening the character device
fails.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-07-12 10:22:01 +02:00
Kent Gibson
e890678f69 tools: gpio: fix spurious close warning in gpio-utils
Fix bogus close warning that occurs when opening the character device
fails.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-07-12 10:22:01 +02:00
Kent Gibson
ef3c61a082 tools: gpio: fix spurious close warning in lsgpio
Fix bogus close warning that occurs when opening the character device
fails.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-07-12 10:22:01 +02:00
Kent Gibson
21249616f0 gpio: uapi: fix misplaced comment line
The second line of the description for event_type is before the first.
Move it to after the first line.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-07-12 10:22:01 +02:00
Kent Gibson
4682427241 gpiolib: cdev: refactor lineevent cleanup into lineevent_free
Consolidate the cleanup of lineevents, currently duplicated in
lineevent_create and lineevent_release, into a helper function
lineevent_free.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-07-12 10:22:01 +02:00
Kent Gibson
883f919818 gpiolib: cdev: refactor linehandle cleanup into linehandle_free
Consolidate the cleanup of linehandles, currently duplicated in
linehandle_create and linehandle_release, into a helper function
linehandle_free.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-07-12 10:22:01 +02:00
Kent Gibson
1bf7ba4001 gpiolib: cdev: remove recalculation of offset
Remove recalculation of offset from desc, where desc itself was calculated
from offset.

There is no benefit from the desc -> hwgpio conversion in this context.
The only implicit benefit of the offset -> desc -> hwgpio is
the range check in the offset -> desc, but where desc is required you
still get that, and where desc isn't required it is simpler to perform
the range check directly.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-07-12 10:22:01 +02:00