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i2c: rcar: WARN about spurious irqs

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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: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
This commit is contained in:
Wolfram Sang 2024-07-07 10:28:47 +02:00 committed by Andi Shyti
parent 00fa2450c1
commit 3291d2327e
1 changed files with 1 additions and 1 deletions
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drivers/i2c/busses/i2c-rcar.c
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@ -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)