Andres Salomon
44658a11f3
cs5535-gpio: handle GPIO regs where higher (clear) bits are set ...
The default for non-READ_BACK GPIO regs is to have the clear bits set;
this means that our original errata fix was too simplistic. This
changes it to the following behavior:
- when setting GPIOs, ignore the higher order bits (they're for
clearing, we don't need to care about them).
- when clearing GPIOs, keep all the bits, but unset (via XOR) the
lower order bit that negates the clear bit that we care about. That
is, if we're clearing GPIO 26 (val = 0x04000000), we first XOR what's
currently in the register with 0x0400 (GPIO 26's SET bit), and then
OR that with the GPIO 26's CLEAR bit.
Tested-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-23 15:31:48 -08:00
gpio: add support for 74x164 serial-in/parallel-out 8-bit shift register
2010-10-27 18:03:07 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
gpio: adp5588-gpio: support interrupt controller
2010-10-27 18:03:07 -07:00
gpio: add driver for basic memory-mapped GPIO controllers
2010-10-27 18:03:06 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
cs5535-gpio: handle GPIO regs where higher (clear) bits are set
2010-12-23 15:31:48 -08:00
gpiolib: gpio_request_one(): add missing gpio_free()
2010-12-22 19:43:33 -08:00
drivers/gpio/it8761e_gpio: check return value of gpiochip_remove()
2010-05-27 09:12:42 -07:00
gpio: Add support for Janz VMOD-TTL Digital IO module
2010-05-28 01:37:33 +02:00
gpio: Add VIA VX855 GPIO driver
2010-10-29 00:29:51 +02:00
langwell_gpio: add support for whitney point
2010-10-27 18:03:07 -07:00
gpio: Add VIA VX855 GPIO driver
2010-10-29 00:29:51 +02:00
gpio: max730x: make pullups configurable via platformdata
2010-08-11 08:59:08 -07:00
gpio: max732x: fix input configuration for open-drain pins
2010-05-27 09:12:41 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
pca953x: pca953x driver fixes for x86 mrst
2010-10-26 16:52:15 -07:00
pcf857x: support working w/o platform data
2010-08-11 08:59:08 -07:00
gpio: add Topcliff PCH GPIO driver
2010-10-27 18:03:07 -07:00
ARM: Fix section build warnings for AMBA drivers
2010-07-27 10:48:43 +01:00
gpio: Fix null pointer dereference while accessing rdc321x platform_data
2010-12-22 12:05:20 +01:00
gpio: Fix sch_gpio warning
2010-03-07 22:17:37 +01:00
gpio: Fix stmpe error path
2010-10-29 00:29:32 +02:00
gpio: sx150x: correct and refine reset-on-probe behavior
2010-09-09 18:57:24 -07:00
ARM: 6373/1: tc35892-gpio: add setup/remove callbacks
2010-09-19 12:12:28 +01:00
gpio: timbgpio: use a copy of the IER register to avoid it being trashed
2010-10-27 18:03:07 -07:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
gpio: Add VIA VX855 GPIO driver
2010-10-29 00:29:51 +02:00
gpiolib: Implement set_debounce for WM831x GPIOs
2010-08-12 11:27:57 +02:00
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
2010-03-30 22:02:32 +09:00
gpiolib: Hook up WM8994 gpio_to_irq()
2010-10-29 00:28:39 +02:00
of: GPIO: Fix OF probing on little-endian systems
2010-09-29 15:28:08 +09:00
44658a11f3