Gregory Bean
5affb60772
gpio: sx150x: correct and refine reset-on-probe behavior ...
Replace the arbitrary software-reset call from the device-probe
method, because:
- It is defective. To work correctly, it should be two byte writes,
not a single word write. As it stands, it does nothing.
- Some devices with sx150x expanders installed have their NRESET pins
ganged on the same line, so resetting one causes the others to reset -
not a nice thing to do arbitrarily!
- The probe, usually taking place at boot, implies a recent hard-reset,
so a software reset at this point is just a waste of energy anyway.
Therefore, make it optional, defaulting to off, as this will match the
common case of probing at powerup and also matches the current broken
no-op behavior.
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-09 18:57:24 -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
Andres has moved
2010-07-20 16:25:41 -07:00
gpiolib: allow nested threaded irqs for poll(2)
2010-08-11 08:59:09 -07:00
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 STMPE GPIO driver
2010-08-12 11:27:55 +02:00
gpio: add Penwell gpio support
2010-05-27 09:12:42 -07:00
gpio: Add STMPE GPIO driver
2010-08-12 11:27:55 +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
gpiolib: make names array and its values const
2010-05-27 09:12:41 -07:00
pcf857x: support working w/o platform data
2010-08-11 08:59:08 -07:00
ARM: Fix section build warnings for AMBA drivers
2010-07-27 10:48:43 +01:00
gpio: Fix inverted rdc321x gpio data out registers
2010-05-28 01:37:59 +02:00
gpio: Add STMPE GPIO driver
2010-08-12 11:27:55 +02:00
gpio: sx150x: correct and refine reset-on-probe behavior
2010-09-09 18:57:24 -07:00
gpio: Add TC35892 GPIO driver
2010-05-28 01:37:43 +02:00
drivers/gpio/timbgpio.c: add missing unlock
2010-04-07 08:38:02 -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
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
Merge branch 'topic/asoc' into for-linus
2010-05-20 12:00:43 +02:00
of/gpio: add default of_xlate function if device has a node pointer
2010-07-05 16:14:30 -06:00
5affb60772