[PATCH 2/3] mmc: mvsdio: workaround for spurious irqs

Jason Cooper jason at lakedaemon.net
Sun Nov 24 12:06:15 EST 2013


On Fri, Nov 15, 2013 at 03:22:33PM +0100, Sebastian Hesselbarth wrote:
> SDIO controllers found on Marvell Kirkwood SoCs seem to cause a late,
> spurious irq although all interrupts have been disabled. This irq
> doesn't do any harm, neither to HW nor driver. To avoid some
> "unexpected irq" warning later, we workaround above issue by bailing
> out of irq handler early, if we didn't expect any.
> 
> Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth at gmail.com>
> ---
> Cc: Nicolas Pitre <nico at fluxnic.net>
> Cc: Chris Ball <cjb at laptop.org>
> Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> Cc: Jason Cooper <jason at lakedaemon.net>
> Cc: Andrew Lunn <andrew at lunn.ch>
> Cc: linux-mmc at vger.kernel.org
> Cc: linux-arm-kernel at lists.infradead.org
> Cc: linux-kernel at vger.kernel.org
> ---
>  drivers/mmc/host/mvsdio.c |   15 +++++++++++++++
>  1 files changed, 15 insertions(+), 0 deletions(-)

Acked-by: Jason Cooper <jason at lakedaemon.net>

thx,

Jason.



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