linux

Commit Graph

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

4 Commits