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authorMagnus Damm <damm@opensource.se>2013-02-27 12:15:01 +0400
committerSimon Horman <horms+renesas@verge.net.au>2013-03-18 16:26:06 +0400
commitfbc83b7f59dd8ed1154286b6de00b6d03c24a3c4 (patch)
tree3b1159be1b1ccc7f42516c52d73228969d289e35 /drivers/irqchip/Kconfig
parent0ca8712285e9e762ce4f5faf9f803b52e48c6837 (diff)
downloadlinux-fbc83b7f59dd8ed1154286b6de00b6d03c24a3c4.tar.xz
irqchip: Renesas IRQC driver
This patch adds a driver for external IRQ pins connected to the IRQC hardware block on recent SoCs from Renesas. The IRQC hardware block is used together with more recent ARM based SoCs using the GIC. As usual the GIC requires external IRQ trigger setup somewhere else which in this particular case happens to be IRQC. This driver implements the glue code needed to configure IRQ trigger and also handle mask/unmask and demux of external IRQ pins hooked up from the IRQC to the GIC. Tested on r8a73a4 but is designed to work with a wide range of SoCs. The driver requires one GIC SPI per external IRQ pin to operate. Each driver instance will handle up to 32 external IRQ pins. The SoCs using this driver are currently mainly used together with regular platform devices so this driver allows configuration via platform data to support things like static interrupt base address. DT support will be added incrementally in the not so distant future. Signed-off-by: Magnus Damm <damm@opensource.se> Tested-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'drivers/irqchip/Kconfig')
-rw-r--r--drivers/irqchip/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 0f5f1c3825bc..4a33351c25dc 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -29,6 +29,10 @@ config RENESAS_INTC_IRQPIN
bool
select IRQ_DOMAIN
+config RENESAS_IRQC
+ bool
+ select IRQ_DOMAIN
+
config VERSATILE_FPGA_IRQ
bool
select IRQ_DOMAIN