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authorAgustin Vega-Frias <agustinv@codeaurora.org>2017-02-03 02:23:59 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2017-02-03 18:03:49 +0300
commitf20cc9b00c7b71f9b5e970b6bd4ac93b0d9cfd5b (patch)
tree7f5e93ccdd4eac18b6cb28dcb07af444f85cde01 /drivers/irqchip/Kconfig
parentd44fa3d46079dc095c1346fa6e5bc96dca1ead41 (diff)
downloadlinux-f20cc9b00c7b71f9b5e970b6bd4ac93b0d9cfd5b.tar.xz
irqchip/qcom: Add IRQ combiner driver
Driver for interrupt combiners in the Top-level Control and Status Registers (TCSR) hardware block in Qualcomm Technologies chips. An interrupt combiner in this block combines a set of interrupts by OR'ing the individual interrupt signals into a summary interrupt signal routed to a parent interrupt controller, and provides read- only, 32-bit registers to query the status of individual interrupts. The status bit for IRQ n is bit (n % 32) within register (n / 32) of the given combiner. Thus, each combiner can be described as a set of register offsets and the number of IRQs managed. Signed-off-by: Agustin Vega-Frias <agustinv@codeaurora.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip/Kconfig')
-rw-r--r--drivers/irqchip/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index ae96731cd2fb..125528f39e92 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -283,3 +283,12 @@ config EZNPS_GIC
config STM32_EXTI
bool
select IRQ_DOMAIN
+
+config QCOM_IRQ_COMBINER
+ bool "QCOM IRQ combiner support"
+ depends on ARCH_QCOM && ACPI
+ select IRQ_DOMAIN
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ Say yes here to add support for the IRQ combiner devices embedded
+ in Qualcomm Technologies chips.