linux/drivers/pps, branch v3.6

pps: return PTR_ERR on error in device_create

2012-07-31T00:25:21Z

We should return PTR_ERR if the call to the device_create function fails. Without this patch we instead return the value from a successful call to cdev_add if the call to device_create fails. Signed-off-by: Emil Goode Acked-by: Devendra Naga Cc: Alexander Gordeev Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

pps: class_create() returns an ERR_PTR, not NULL

2012-03-05T23:49:43Z

class_create() never returns NULLs only ERR_PTRs. Signed-off-by: Dan Carpenter Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

pps gpio client: add missing dependency

2011-11-02T23:07:02Z

Add "depends on GENERIC_HARDIRQS" to avoid compile breakage on s390: drivers/built-in.o: In function `pps_gpio_remove': linux-next/drivers/pps/clients/pps-gpio.c:189: undefined reference to `free_irq' Signed-off-by: Heiko Carstens Cc: James Nuss Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

pps: new client driver using GPIO

2011-11-02T23:07:02Z

This client driver allows you to use a GPIO pin as a source for PPS signals. Platform data [1] are used to specify the GPIO pin number, label, assert event edge type, and whether clear events are captured. This driver is based on the work by Ricardo Martins who submitted an initial implementation [2] of a PPS IRQ client driver to the linuxpps mailing-list on Dec 3 2010. [1] include/linux/pps-gpio.h [2] http://ml.enneenne.com/pipermail/linuxpps/2010-December/004155.html [akpm@linux-foundation.org: remove unneeded cast of void*] Signed-off-by: James Nuss Cc: Ricardo Martins Acked-by: Rodolfo Giometti Signed-off-by: Ricardo Martins Cc: Alexander Gordeev Cc: Igor Plyatov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

pps: default echo function

2011-11-02T23:07:02Z

A default echo function has been provided so it is no longer an error when you specify PPS_ECHOASSERT or PPS_ECHOCLEAR without an explicit echo function. This allows some code re-use and also makes it easier to write client drivers since the default echo function does not normally need to change. Signed-off-by: James Nuss Reviewed-by: Ben Gardiner Acked-by: Rodolfo Giometti Cc: Ricardo Martins Cc: Alexander Gordeev Cc: Igor Plyatov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Fix common misspellings

2011-03-31T14:26:23Z

Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi

pps: remove unreachable code

2011-03-23T00:44:17Z

Remove code enabled only when CONFIG_PREEMPT_RT is turned on because it is not used in the vanilla kernel. Signed-off-by: Alexander Gordeev Cc: john stultz Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

pps: change to new flag variable

2011-03-17T13:05:35Z

Replace EXTRA_CFLAGS with ccflags-y. Signed-off-by: matt mooney Acked-by: WANG Cong Signed-off-by: Michal Marek

pps: make pps_gen_parport depend on BROKEN

2011-03-05T01:53:38Z

This driver causes hard lockups, when the active clock soure is jiffies. The reason is that it loops with interrupts disabled waiting for a timestamp to be reached by polling getnstimeofday(). Though with a jiffies clocksource, when that code runs on the same CPU which is responsible for updating jiffies, then we loop in circles for ever simply because the timer interrupt cannot update jiffies. So both UP and SMP can be affected. There is no easy fix for that problem so make it depend on BROKEN for now. Signed-off-by: Thomas Gleixner Cc: Alexander Gordeev Cc: Rodolfo Giometti Cc: john stultz Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

pps: initialize ts_real properly

2011-02-25T23:07:37Z

Initialize ts_real.flags to fix compiler warning about possible uninitialized use of this field. Signed-off-by: Alexander Gordeev Cc: john stultz Cc: Rodolfo Giometti Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds