linux-toradex.git/arch/mips/alchemy/devboards, branch v4.4.73

pcmcia: db1xxx_ss: fix last irq_to_gpio user

2016-04-20T06:42:09+00:00

commit e34b6fcf9b09ec9d93503edd5f81489791ffd602 upstream.

remove the usage of removed irq_to_gpio() function.  On pre-DB1200
boards, pass the actual carddetect GPIO number instead of the IRQ,
because we need the gpio to actually test card status (inserted or
not) and can get the irq number with gpio_to_irq() instead.

Tested on DB1300 and DB1500, this patch fixes PCMCIA on the DB1500,
which used irq_to_gpio().

Fixes: 832f5dacfa0b ("MIPS: Remove all the uses of custom gpio.h")
Signed-off-by: Manuel Lauss 
Acked-by: Arnd Bergmann 
Reviewed-by: Linus Walleij 
Cc: linux-pcmcia@lists.infradead.org
Cc: Linux-MIPS 
Patchwork: https://patchwork.linux-mips.org/patch/12747/
Signed-off-by: Ralf Baechle 
Signed-off-by: Greg Kroah-Hartman

genirq: Remove irq argument from irq flow handlers

2015-09-16T13:47:51+00:00

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 
Cc: Julia Lawall 
Cc: Jiang Liu

MIPS: Remove all the uses of custom gpio.h

2015-09-03T10:08:02+00:00

Currently CONFIG_ARCH_HAVE_CUSTOM_GPIO_H is defined for all MIPS
machines, and each machine type provides its own gpio.h. However
only a handful really implement the GPIO API, most just forward
everythings to gpiolib.

The Alchemy machine is notable as it provides a system to allow
implementing the GPIO API at the board level. But it is not used by
any board currently supported, so it can also be removed.

For most machine types we can just remove the custom gpio.h, as well
as the custom wrappers if some exists. Some of the code found in
the wrappers must be moved to the respective GPIO driver.

A few more fixes are need in some drivers as they rely on linux/gpio.h
to provides some machine specific definitions, or used asm/gpio.h
instead of linux/gpio.h for the gpio API.

Signed-off-by: Alban Bedel 
Reviewed-by: Linus Walleij 
Cc: linux-mips@linux-mips.org
Cc: Hauke Mehrtens 
Cc: Rafał Miłecki 
Cc: Bartlomiej Zolnierkiewicz 
Cc: Tejun Heo 
Cc: Alexandre Courbot 
Cc: Dmitry Torokhov 
Cc: Florian Fainelli 
Cc: Manuel Lauss 
Cc: Joe Perches 
Cc: Daniel Walter 
Cc: Sergey Ryazanov 
Cc: Huacai Chen 
Cc: James Hartley 
Cc: Andrew Bresticker 
Cc: Paul Burton 
Cc: Jiri Kosina 
Cc: Bjorn Helgaas 
Cc: Wolfram Sang 
Cc: Randy Dunlap 
Cc: Varka Bhadram 
Cc: Masanari Iida 
Cc: Tomi Valkeinen 
Cc: Michael Buesch 
Cc: abdoulaye berthe 
Cc: linux-kernel@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: netdev@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10828/
Signed-off-by: Ralf Baechle

MIPS: alchemy: Remove pointless irqdisable/enable

2015-08-26T13:23:30+00:00

bcsr_csc_handler() is a cascading interrupt handler. It has a
disable_irq_nosync()/enable_irq() pair around the generic_handle_irq()
call. The value of this disable/enable is zero because its a complete
noop:

disable_irq_nosync() merily increments the disable count without
actually masking the interrupt. enable_irq() soleley decrements the
disable count without touching the interrupt chip. The interrupt
cannot arrive again because the complete call chain runs with
interrupts disabled.

Remove it.

[ralf@linux-mips.org: Fold in followup fix from Thomas Gleixner.]

Signed-off-by: Thomas Gleixner 
Cc: linux-mips@linux-mips.org
Cc: LKML 
Cc: Jiang Liu 
Patchwork: https://patchwork.linux-mips.org/patch/10702/
Patchwork: https://patchwork.linux-mips.org/patch/10708/
Signed-off-by: Ralf Baechle

MIPS: Alchemy: DB1300: Add touch penirq support

2014-09-22T11:35:47+00:00

wire up the WM9713 pendown irq support.

Signed-off-by: Manuel Lauss 
Cc: Linux-MIPS 
Patchwork: https://patchwork.linux-mips.org/patch/7563/
Signed-off-by: Ralf Baechle

MIPS: Alchemy: DB1xxx: Explicitly set 50MHz clock for I2C/SPI units.

2014-09-22T11:35:47+00:00

Add an explicit call to set the desired rate to get the correct
clock routing for the PSC clocks.  It wasn't broken before, but
now it's less affected by bootloader changes.

Signed-off-by: Manuel Lauss 
Cc: Linux-MIPS 
Patchwork: https://patchwork.linux-mips.org/patch/7554/
Signed-off-by: Ralf Baechle

MIPS: Alchemy: devboards: sit and spin after poweroff

2014-09-22T11:35:46+00:00

On boards which don't support poweroff, systemd complains about this fact.
In case poweroff fails, just sit and spin in the wait loop.

Signed-off-by: Manuel Lauss 
Cc: Linux-MIPS 
Cc: Manuel Lauss 
Patchwork: https://patchwork.linux-mips.org/patch/7558/
Signed-off-by: Ralf Baechle

MIPS: Alchemy: Fix db1200 PSC clock enablement

2014-08-19T11:30:47+00:00

Enable PSC0 (I2C/SPI) clock and leave PSC1 (Audio) alone.  This patch
restores functionality to both Audio and I2C/SPI.

Signed-off-by: Manuel Lauss 
Cc: Linux-MIPS 
Patchwork: https://patchwork.linux-mips.org/patch/7544/
Signed-off-by: Ralf Baechle

MIPS: Alchemy: au1100fb: use clk framework

2014-07-30T12:10:39+00:00

Use the clock framework to en/disable the clock to the au1100
framebuffer device.

Signed-off-by: Manuel Lauss 
Cc: Linux-MIPS 
Patchwork: https://patchwork.linux-mips.org/patch/7474/
Signed-off-by: Ralf Baechle

MIPS: Alchemy: db1x00: use clk framework

2014-07-30T12:10:00+00:00

Make use of the clk framework to set up and enable all PSC clocks.

Signed-off-by: Manuel Lauss 
Cc: Linux-MIPS 
Patchwork: https://patchwork.linux-mips.org/patch/7469/
Signed-off-by: Ralf Baechle