Commit 3291d232 authored by Wolfram Sang's avatar Wolfram Sang Committed by Andi Shyti
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i2c: rcar: WARN about spurious irqs 



The FIXME is very old and probably needed because of some driver bug
like insufficient initialization. It may well be that it was fixed
meanwhile but we never know because the spurious irq is silently
ignored. Add now a call trace when this happens so we have more
information in case the issue still exists.

Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: default avatarAndi Shyti <andi.shyti@kernel.org>
parent 00fa2450

drivers/i2c/busses/i2c-rcar.c

+1 −1
Original line number Diff line number Diff line
@@ -545,7 +545,7 @@ static void rcar_i2c_irq_send(struct rcar_i2c_priv *priv, u32 msr) 
	u32 irqs_to_clear = MDE;



	/* FIXME: sometimes, unknown interrupt happened. Do nothing */

	if (!(msr & MDE))

	if (WARN(!(msr & MDE), "spurious irq"))

		return;



	if (msr & MAT)