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authorSergei Shtylyov <sshtylyov@ru.mvista.com>2007-02-17 04:40:22 +0300
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-02-17 04:40:22 +0300
commitea266ba1591d28889645a245e1df6f889c574640 (patch)
tree71bff303517c720ad9022c47716481c863f7bbc2 /sound/sound_firmware.c
parentfed21641be7b31338dcf6753ef7f8a396242a410 (diff)
downloadlinux-ea266ba1591d28889645a245e1df6f889c574640.tar.xz
sl82c105: DMA support fixes
Fix a number of issues with the DMA support code: - driver claims support for all SW/MW DMA modes while supporting only MWDMA2; - ide_dma_check() method tries to enable DMA on the "known good" drives which don't support MWDMA2; - ide_dma_on() method upon failure to set drive to MWDMA2 re-tunes already tuned PIO mode and calls ide_dma_off() method instead of returning error; - ide_dma_off() method sets drive->current_speed while it doesn't actually change (only the PIO timings are re-loaded into the chip's registers); - init_hwif() method forcibly sets/resets both "drive DMA capable" bits while this is properly handled by ide_dma_{on,off}() methods being called later... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'sound/sound_firmware.c')
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