path: root/MAINTAINERS
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authorLinus Walleij <>2019-01-25 21:59:11 +0100
committerLinus Walleij <>2019-04-23 16:02:13 +0200
commit813e7d36f22762f89856048a32446c8972309566 (patch)
tree90cd921732bce88d0726abac72a3e2114ee4d6cd /MAINTAINERS
parent5b978c10665973d8ee7050b03ef6e97013066b03 (diff)
gpio: ixp4xx: Add driver for the IXP4xx GPIO
This adds a driver for the IXP4xx GPIO block found in the Intel XScale IXP4xx systems. The GPIO part of this block is pretty straight-forward and just uses the generic MMIO GPIO library. The irqchip side of this driver is hierarchical where the main irqchip will receive a processed level trigger in response to the edge detector of the GPIO block, so for this reason the v2 version of the irqdomain API is used (as well as in the parent IXP4xx irqchip) and masking, unmasking and setting up the type on IRQ happens on several levels. Currently this GPIO controller will grab the parent irqdomain using a special function, but as the platform move toward device tree probing, this will not be needed: we can just look up the parent irqdomain from the device tree. Cc: Bartosz Golaszewski <> Signed-off-by: Linus Walleij <>
Diffstat (limited to 'MAINTAINERS')
1 files changed, 1 insertions, 0 deletions
index e12f7fc21b2b..353821fdc700 100644
@@ -1691,6 +1691,7 @@ M: Krzysztof Halasa <>
L: (moderated for non-subscribers)
S: Maintained
F: arch/arm/mach-ixp4xx/
+F: drivers/gpio/gpio-ixp4xx.c
F: drivers/irqchip/irq-ixp4xx.c
F: include/linux/irqchip/irq-ixp4xx.h