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| /openbmc/linux/drivers/dma/ |
| H A D | mpc512x_dma.c | 2862559e Tue Oct 26 18:52:56 CDT 2010 Ilya Yanok <yanok@emcraft.com> powerpc/512x: fix the hanged dma transfer issue
Current code clears interrupt active status _after_ submitting new
transfers. This leaves a possibility of clearing the interrupt for this
new transfer (if it is triggered fast enough) and thus lose this
interrupt. We want to clear interrupt active status _before_ new
transfers is submitted and for current channel only.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2862559e Tue Oct 26 18:52:56 CDT 2010 Ilya Yanok <yanok@emcraft.com> powerpc/512x: fix the hanged dma transfer issue
Current code clears interrupt active status _after_ submitting new
transfers. This leaves a possibility of clearing the interrupt for this
new transfer (if it is triggered fast enough) and thus lose this
interrupt. We want to clear interrupt active status _before_ new
transfers is submitted and for current channel only.
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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