kernel/git/next/linux-next.git/drivers/fmc/fmc-chardev.c, branch master

fmc: Delete the FMC subsystem

2019-06-12T12:23:50+00:00

The FMC subsystem was created in 2012 with the ambition to drive development of drivers for this hardware upstream. The current implementation has architectural flaws and would need to be revamped using real hardware to something that can reuse existing kernel abstractions in the subsystems for e.g. I2C, FPGA and GPIO. We have concluded that for the mainline kernel it will be better to delete the subsystem and start over with a clean slate when/if an active maintainer steps up. For details see: https://lkml.org/lkml/2018/10/29/534 Suggested-by: Federico Vaga Cc: Pat Riehecky Acked-by: Alessandro Rubini Signed-off-by: Federico Vaga Signed-off-by: Linus Walleij

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 60

2019-05-24T15:36:45+00:00

Based on 1 normalized pattern(s): released according to the gnu gpl version 2 or any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 10 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.650321694@linutronix.de Signed-off-by: Greg Kroah-Hartman

drivers/fmc: hide fmc operations behind helpers

2017-08-28T14:24:21+00:00

This gave us more freedom to change/add/remove operations without recompiling all device driver. Typically, Carrier board implement the fmc operations, so they will not use these helpers. Signed-off-by: Federico Vaga Tested-by: Pat Riehecky Acked-by: Alessandro Rubini Signed-off-by: Greg Kroah-Hartman

FMC: fix locking in sample chardev driver

2013-07-25T05:56:52+00:00

The fmc-chardev module was over-locking, by calling misc register/unregister while holding its spinlock. This reported a "scheduling while atomic" error. Since the misc driver already serializes operations internally, this commit downgrades the fmc-chardev lock to just cover its own list. Reported-by: Sasha Levin Reported-by: Fengguang Wu Signed-off-by: Alessandro Rubini Signed-off-by: Greg Kroah-Hartman

FMC: fix error handling in probe() function

2013-06-24T23:23:25+00:00

The call to kzalloc() wasn't checked. The dev_info() message dereferenced freed memory on error. Signed-off-by: Dan Carpenter Acked-by: Alessandro Rubini Signed-off-by: Greg Kroah-Hartman

FMC: add a char-device mezzanine driver

2013-06-18T22:42:15+00:00

This driver exports the memory area associated with the mezzanine card as a misc device, so users can access registers. Signed-off-by: Alessandro Rubini Acked-by: Juan David Gonzalez Cobas Acked-by: Emilio G. Cota Acked-by: Samuel Iglesias Gonsalvez Signed-off-by: Greg Kroah-Hartman