/* * timbuart.c timberdale FPGA GPIO driver * Copyright (c) 2009 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* Supports: * Timberdale FPGA UART */ #ifndef _TIMBUART_H #define _TIMBUART_H #define TIMBUART_FIFO_SIZE 2048 #define TIMBUART_RXFIFO 0x08 #define TIMBUART_TXFIFO 0x0c #define TIMBUART_IER 0x10 #define TIMBUART_IPR 0x14 #define TIMBUART_ISR 0x18 #define TIMBUART_CTRL 0x1c #define TIMBUART_BAUDRATE 0x20 #define TIMBUART_CTRL_RTS 0x01 #define TIMBUART_CTRL_CTS 0x02 #define TIMBUART_CTRL_FLSHTX 0x40 #define TIMBUART_CTRL_FLSHRX 0x80 #define TXBF 0x01 #define TXBAE 0x02 #define CTS_DELTA 0x04 #define RXDP 0x08 #define RXBAF 0x10 #define RXBF 0x20 #define RXTT 0x40 #define RXBNAE 0x80 #define TXBE 0x100 #define RXFLAGS (RXDP | RXBAF | RXBF | RXTT | RXBNAE) #define TXFLAGS (TXBF | TXBAE) #define TIMBUART_MAJOR 204 #define TIMBUART_MINOR 192 #endif /* _TIMBUART_H */ d>
summaryrefslogtreecommitdiff
path: root/include/dt-bindings/clock/rk3188-cru-common.h
diff options
context:
space:
mode:
authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 16:00:48 +0000
committerThomas Gleixner <tglx@linutronix.de>2017-01-30 15:18:56 +0100
commit08d85f3ea99f1eeafc4e8507936190e86a16ee8c (patch)
tree410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee /include/dt-bindings/clock/rk3188-cru-common.h
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
irqdomain: Avoid activating interrupts more than once
Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/dt-bindings/clock/rk3188-cru-common.h')