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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2008-10-09 00:52:23 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2008-10-09 01:01:21 -0400
commite8f462d202026d8e99f553ed5a09422321226ac9 (patch)
treee5351b7855cf9ec60120468e36381af286277aa1 /lib
parent2d517cab01075610a615ebda0a1c16ba3fb081ae (diff)
Input: ads7846 - fix cache line sharing issue
We had a report a while back that the ads7846 driver had some issues when used with DMA-based SPI controllers (like atmel_spi) on systems where main memory is not DMA-coherent (most non-x86 boards). Allocate memory potentially used for DMA separately to avoid cache line issues. Reported-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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