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path: root/drivers/irqchip/irq-versatile-fpga.c
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2016-01-11irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PBGuillaume Delbergue1-0/+5
commit d5d4fdd86f5759924fe54efa793e22eccf508db6 upstream. This patch is specifically for PCI support on the Versatile PB board using a DT. Currently, the dynamic IRQ mapping is broken when using DTs. For example, on QEMU, the SCSI driver is unable to request the IRQ. To fix this issue, this patch replaces the current dynamic mechanism with a static value as is done in the non-DT case. Signed-off-by: Guillaume Delbergue <guillaume.delbergue@greensocs.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
2014-01-04irqchip: versatile FPGA: support cascaded interrupts from DTLinus Walleij1-2/+13
The Versatile FPGA interrupt controller supports cascading interrupts, i.e. that its output is connected to the input of another interrupt controller. This makes it possible to pass a parent interrupt from the device tree and print it in the boot log if applicable. Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-06-09irqchip: Return -EPERM for reserved IRQsGrant Likely1-1/+1
The irqdomain core will report a log message for any attempted map call that fails unless the error code is -EPERM. This patch changes the Versatile irq controller drivers to use -EPERM because it is normal for a subset of the IRQ inputs to be marked as reserved on the various Versatile platforms. Signed-off-by: Grant Likely <grant.likely@linaro.org>
2013-03-27irq: versatile: rename Kconfig macro in printkPaul Bolle1-1/+1
Commit 2389d5014342e9535aad212d0c68d439aaf534ba ("ARM: plat-versatile: move FPGA irq driver to drivers/irqchip") changed Kconfig symbol PLAT_VERSATILE_FPGA_IRQ_NR to VERSATILE_FPGA_IRQ_NR. It forgot to change one reference to the related macro in a printk. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-11-30irq: versatile: delete dangling variableLinus Walleij1-1/+0
This one was just creating noise like this: drivers/irqchip/irq-versatile-fpga.c: In function 'fpga_irq_of_init': drivers/irqchip/irq-versatile-fpga.c:180:24: warning: unused variable 'f' Reported-by: Russell King <linux@arm.linux.org.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2012-11-04ARM: plat-versatile: move FPGA irq driver to drivers/irqchipLinus Walleij1-0/+204
This moves the Versatile FPGA interrupt controller driver, used in the Integrator/AP, Integrator/CP and some Versatile boards, out of arch/arm/plat-versatile and down to drivers/irqchip where we have consensus that such drivers belong. The header file is consequently moved to <linux/platform_data/irq-versatile-fpga.h>. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>