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64 commits

Author SHA1 Message Date
Linus Torvalds
952414505f Merge branch 'next/cleanup' of git://git.linaro.org/people/arnd/arm-soc
* 'next/cleanup' of git://git.linaro.org/people/arnd/arm-soc: (125 commits)
  ARM: mach-mxs: fix machines' initializers order
  mmc: mxcmmc: explicitly includes mach/hardware.h
  arm/imx: explicitly includes mach/hardware.h in pm-imx27.c
  arm/imx: remove mx27_setup_weimcs() from mx27.h
  arm/imx: explicitly includes mach/hardware.h in mach-kzm_arm11_01.c
  arm/imx: remove mx31_setup_weimcs() from mx31.h
  ARM: tegra: devices.c should include devices.h
  ARM: tegra: cpu-tegra: unexport two functions
  ARM: tegra: cpu-tegra: sparse type fix
  ARM: tegra: dma: staticify some tables and functions
  ARM: tegra: tegra2_clocks: don't export some tables
  ARM: tegra: tegra_powergate_is_powered should be static
  ARM: tegra: tegra_rtc_read_ms should be static
  ARM: tegra: tegra_init_cache should be static
  ARM: tegra: pcie: 0 -> NULL changes
  ARM: tegra: pcie: include board.h
  ARM: tegra: pcie: don't cast __iomem pointers
  ARM: tegra: tegra2_clocks: 0 -> NULL changes
  ARM: tegra: tegra2_clocks: don't cast __iomem pointers
  ARM: tegra: timer: don't cast __iomem pointers
  ...

Fix up trivial conflicts in
  arch/arm/mach-omap2/Makefile,
  arch/arm/mach-u300/{Makefile.boot,core.c}
  arch/arm/plat-{mxc,omap}/devices.c
2011-11-01 20:11:00 -07:00
Paul Gortmaker
bb207ef1e8 drivers/gpio: Fix drivers who are implicit users of module.h
A pending cleanup will mean that module.h won't be implicitly
everywhere anymore.  Make sure the modular drivers in gpio
are actually calling out for <module.h> explicitly in advance.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31 19:31:47 -04:00
Shawn Guo
0e44b6eccf gpio/mxc: add chained_irq_enter/exit() to mx3_gpio_irq_handler()
The mx3_gpio_irq_handler() is also called on imx6q which has GIC as
the primary interrupt controller.  As GIC implements the fasteoi flow
control, we need to add chained_irq_enter/exit() to
mx3_gpio_irq_handler() for signaling EOI, otherwise system will hang
whenever there is a gpio irq triggered.

v2: use chained_irq_{enter,exit}()

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-09-21 10:26:42 -06:00
Shawn Guo
a439561229 gpio/mxc: move irq_to_gpio() into gpio-mxc driver
As irq_to_gpio() is only being used by gpio-mxc driver, it should be
moved from mach/gpio.h into gpio-mxc.c.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-08-17 08:31:04 +02:00
Shawn Guo
09ad8039da gpio/mxc: add .to_irq for gpio chip
It adds .to_irq support for gpio chip, so that __gpio_to_irq in
gpiolib becomes usable.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-08-16 09:00:37 +02:00
Shawn Guo
591567a5ea gpio/mxc/mxs: fix build error introduced by the irq_gc_ack() renaming
The following commit renames irq_gc_ack() to irq_gc_ack_set_bit(),
and makes gpio-mxc and gpio-mxs fail to build.

  659fb32d1b
  genirq: replace irq_gc_ack() with {set,clr}_bit variants (fwd)

The patch fixed a couple of typo of comma to semicolon.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-19 13:10:02 -06:00
Shawn Guo
8937cb602b gpio/mxc: add device tree probe support
The patch adds device tree probe support for gpio-mxc driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-08 12:38:18 -06:00
Shawn Guo
e7fc6ae744 gpio/mxc: get rid of the uses of cpu_is_mx()
The patch removes all the uses of cpu_is_mx().  Instead, it utilizes
platform_device_id to distinguish the different gpio types, IMX1_GPIO
on i.mx1, IMX21_GPIO on i.mx21 and i.mx27, IMX31_GPIO on all other
i.mx SoCs.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-08 12:38:12 -06:00
Lothar Waßmann
fb14921862 gpio/mxc: add missing initialization of basic_mmio_gpio shadow variables
The bgpio_init() function does not initialise the shadow register for
the GPIO direction register. Thus, when configuring the first GPIO with
gpio_set_direction() all other GPIOs of the same bank will be
configured as inputs. Since the bgpio layer cannot know whether the
register is readable, the initialisation should be done by the caller
of bgpio_init().

Also, the 'data' shadow variable that is used inside basic_mmio_gpio
to cache the current value of the GPIO_DR register is initialised from
the GPIO_PSR register within bgpio_init(). Thus when setting the
output value of a certain GPIO, the other GPIO outputs of the same
bank will be set or cleared depending on the pin state of the GPIO
inputs during bgpio_init().

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-07-07 12:42:50 -06:00
Shawn Guo
5523f86bea gpio/mxc: fix a bug with gpio_get_value calling
When calling gpio_get_value, the gpio number other than bit offset
should be passed as the argument.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-11 21:01:41 -06:00
Shawn Guo
e4ea933363 gpio/mxc: convert gpio-mxc to use generic irq chip
The patch converts gpio-mxc driver to use generic irq chip.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-07 08:49:20 -06:00
Shawn Guo
2ce420da39 gpio/mxc: convert gpio-mxc to use basic_mmio_gpio library
The gpio-mxc controller complies with basic_mmio_gpio library.  The
patch convert the driver to use the library.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-06 10:01:19 -06:00
Shawn Guo
b78d8e59a6 gpio/mxc: Change gpio-mxc into an upstanding gpio driver
The patch makes necessary changes on gpio-mxc as below to turn it
into an upstanding gpio driver.

 * Add a list to save all mx2 ports references, so that
   mx2_gpio_irq_handler can walk through all interrupt status
   registers

 * Use readl/writel to replace mach-specific accessors
   __raw_readl/__raw_writel

 * Change mxc_gpio_init into mxc_gpio_probe function

 * Move "struct mxc_gpio_port" into gpio-mxc.c, as it needs not to
   be public at all, and also make some other cleanup on
   plat-mxc/include/mach/gpio.h at the same time

And the patch then migrates mach-imx and mach-mx5 to the updated
driver by adding corresponding platform devices.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-06 10:01:19 -06:00
Shawn Guo
d37a65bb46 gpio/mxc: Move Freescale MXC gpio driver to drivers/gpio
GPIO drivers are getting moved to drivers/gpio for cleanup and
consolidation.  This patch moves the plat-mxc driver.  Follow up
patches will clean it up and make it a fine upstanding gpio driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-06 10:01:19 -06:00
Renamed from arch/arm/plat-mxc/gpio.c (Browse further)