ath9k_hw: check GPM HW write pointer before chip reset

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Both "MAC Warm Reset" and "MCI Reset Rx" will reset GPM HW write_ptr.
We should check software cached write_ptr against HW write_ptr before
reset. Otherwise the pending DMA data will be lost.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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Rajkumar Manoharan 2012-06-11 12:19:32 +05:30 • committed by John W. Linville

parent 9dd9b0dc1d

commit 3863495b86

3 changed files with 22 additions and 0 deletions

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18

drivers/net/wireless/ath/ath9k/ar9003_mci.c

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1

drivers/net/wireless/ath/ath9k/ar9003_mci.h

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3

drivers/net/wireless/ath/ath9k/hw.c

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