sdhci: Enable only relevant (DMA/PIO) interrupts during transfers

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Some hosts (that is, FSL eSDHC) throw PIO interrupts during DMA
transfers, this causes tons of unneeded interrupts, and thus highly
degraded speed.

This patch modifies the driver so that now we only enable relevant
(DMA or PIO) interrupts during transfers.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

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Anton Vorontsov 2009-03-17 00:13:50 +03:00 • committed by Pierre Ossman

parent 7260cf5e12

commit 6aa943ab89

1 changed files with 14 additions and 3 deletions

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17

drivers/mmc/host/sdhci.c

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