AuxXxilium/linux_dsm_epyc7002
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4 Commits

Author SHA1 Message Date
Julia Cartwright
229710fecd pinctrl: amd: make use of raw_spinlock variants 
The amd pinctrl drivers currently implement an irq_chip for handling
interrupts; due to how irq_chip handling is done, it's necessary for the
irq_chip methods to be invoked from hardirq context, even on a a
real-time kernel.  Because the spinlock_t type becomes a "sleeping"
spinlock w/ RT kernels, it is not suitable to be used with irq_chips.

A quick audit of the operations under the lock reveal that they do only
minimal, bounded work, and are therefore safe to do under a raw spinlock.

Signed-off-by: Julia Cartwright <julia@ni.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2017-03-16 16:39:15 +01:00
Shah, Nehal-bakulchandra
3bfd44306c pinctrl: amd: Add support for additional GPIO 
This patch adds support for new Bank and adds IRQCHIP_SKIP_SET_WAKE flag.

Reviewed-by: S-k, Shyam-sundar <Shyam-sundar.S-k@amd.com>
Signed-off-by: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2016-12-28 13:26:09 +01:00
Ken Xue
25a853d037 Fix inconsistent spinlock of AMD GPIO driver which can be 
recognized by static analysis tool smatch. Declare constant
Variables with Sparse's suggestion.

Signed-off-by: Ken Xue <Ken.Xue@amd.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2015-04-07 11:36:49 +02:00
Ken Xue
dbad75dd1f pinctrl: add AMD GPIO driver support. 
KERNCZ GPIO is a new IP from AMD. it can be implemented in both x86 and ARM.
Current driver patch only support GPIO in x86.

Signed-off-by: Ken Xue <Ken.Xue@amd.com>
[Moved back to <linux/gpio.h> header]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2015-03-18 02:02:21 +01:00