From: Alexander Stein <alexander.stein@systec-electronic.com>
Date: Wed, 14 Mar 2012 08:52:10 +0000 (+0100)
Subject: mmc: sdhci: check interrupt flags in ISR again
X-Git-Tag: v3.4-rc1~49^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6379b2375a0c5a6ad437616a4018e6b8fd95e97c;p=pandora-kernel.git

mmc: sdhci: check interrupt flags in ISR again

When using MSI it is possible that a new MSI is sent while an earlier
MSI is currently handled. In this case SDHCI_INT_STATUS only contains
SDHCI_INT_RESPONSE and the ISR would not be called again. But at the end
of the ISR SDHCI_INT_DATA_END is now also pending which would be ignored.

Fix this by rereading the interrupt flags in the ISR until no interrupt
we care is pending.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---

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