From 5a8103a6fb0ae9cf99c0271b17474468d6bae2b2 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 4 Mar 2026 18:21:57 +0100 Subject: genirq: Document interaction between and DT binding defines Document that the DT binding definitions in shadow the first six IRQ_TYPE_* definitions in . The values must be the same anyway, so this is harmless (as long as the latter is included first when both are included), but it is good to document this explicitly. Signed-off-by: Geert Uytterhoeven Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/fbcc65dcee6c5437fab5ef18d21766bb4effb7cb.1772644406.git.geert+renesas@glider.be --- include/linux/irq.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 951acbdb9f84..efa514ee562f 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -35,6 +35,10 @@ enum irqchip_irq_state; * * Bits 0-7 are the same as the IRQF_* bits in linux/interrupt.h * + * Note that the first 6 definitions are shadowed by C preprocessor definitions + * in include/dt-bindings/interrupt-controller/irq.h. This is not an issue, as + * the actual values must be the same, due to being part of the stable DT ABI. + * * IRQ_TYPE_NONE - default, unspecified type * IRQ_TYPE_EDGE_RISING - rising edge triggered * IRQ_TYPE_EDGE_FALLING - falling edge triggered -- cgit v1.2.3