Messages in this thread | | | From | Phil Elwell <> | Subject | [PATCH 0/2] Add bcm2835aux interrupt controller | Date | Wed, 7 Jun 2017 12:11:29 +0100 |
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Devices in the AUX block share a common interrupt line, with a register indicating which devices have active IRQs. Expose this as a nested interrupt controller to avoid IRQ sharing problems (easily observed if UART1 and SPI1/2 are enabled simultaneously).
The interrupt functionality could arguably be forked off as a separate irqchip driver, but the clock driver has already claimed the AUX_IRQ register so some driver and DT surgery would still be required. Eric Anholt thought that including it here is reasonable, but I'm prepared to split it out if this is considered too hacky.
Phil Elwell (2): clk: bcm2835: Add AUX interrupt controller ARM: dts: bcm283x: Enable AUX interrupt controller
arch/arm/boot/dts/bcm283x.dtsi | 12 +++- drivers/clk/bcm/clk-bcm2835-aux.c | 120 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 129 insertions(+), 3 deletions(-)
-- 1.9.1
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