Commit Graph

9 Commits

Author SHA1 Message Date
Jonas Gorski
203f0daafd gpio: replace trivial implementations of request/free with generic one
Replace all trivial request/free callbacks that do nothing but call into
pinctrl code with the generic versions.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Acked-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-10-16 22:13:43 +02:00
Linus Walleij
2f930643c5 gpio: vf610: use container_of() to get state container
The state container of the vf610 GPIO driver is sometimes
extracted from the gpio_chip exploiting the fact that offsetof()
the struct gpio_chip inside the struct vf610_gpio_port is 0, so
the container_of() is in practice a noop. However if a member
is added to struct vf610_gpio_port in front of struct gpio_chip,
things will break. Using proper container_of() avoids this
problem.

Semantically this is a noop, the compiler will optimize it away,
but syntactically it makes me happier.

Also replace some explicit container_of() calls with the helper
function.

Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-10-02 04:19:32 -07:00
Thomas Gleixner
bd0b9ac405 genirq: Remove irq argument from irq flow handlers
Most interrupt flow handlers do not use the irq argument. Those few
which use it can retrieve the irq number from the irq descriptor.

Remove the argument.

Search and replace was done with coccinelle and some extra helper
scripts around it. Thanks to Julia for her help!

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-16 15:47:51 +02:00
Thomas Gleixner
a7147db0f5 gpio: vf610: Use irq_set_handler_locked
Use irq_set_handler_locked() as it avoids a redundant lookup of the
irq descriptor. Search and replacement was done with coccinelle:

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
2015-09-16 15:43:11 +02:00
Stefan Agner
fd96811576 gpio: vf610: handle level IRQ's properly
The GPIO IRQ controller is able to generate level triggered
interrupts, however, these were handled by handle_simple_irq so far
which did not take care of IRQ masking. This lead to "nobody cared
(try booting with the "irqpoll" option)" stack traces.

Use the generic interrupt handlers depending on the IRQ type.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-08-26 14:45:11 +02:00
Jiang Liu
476f8b4c94 gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Preparatory patch for the removal of the 'irq' argument from irq flow
handlers.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-14 12:12:20 +02:00
Axel Lin
d32efe3796 gpio: vf610: Replaces comma between expression statements by semicolon
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-03-06 11:17:36 +01:00
Wolfram Sang
a7ce835376 gpio: drop owner assignment from platform_drivers
This platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-01-15 17:23:20 +01:00
Stefan Agner
7f2691a196 gpio: vf610: add gpiolib/IRQ chip driver for Vybrid
Add a gpiolib and IRQ chip driver for Vybrid ARM SoC using the
Vybrid's GPIO and PORT module. The driver is instanced once per
each GPIO/PORT module pair and handles 32 GPIO's.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-10-24 14:18:05 +02:00