xiaomi-sm8450/android_kernel_xiaomi_sm8450
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ath9k: Revamp PCIE workarounds

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* Disable L1 state ONLY when device is in D3 mode.
* Clear bit 22 of register 0x4004.
* Handle power on/off properly

Not setting the workarounds properly resulted in the
disappearance of the card in certain cases.

Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vivek Natarajan
2009-09-17 09:24:58 +05:30
committed by John W. Linville
parent 6170cd5c72
commit 93b1b37f6a
4 changed files with 107 additions and 76 deletions
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3
drivers/net/wireless/ath/ath9k/reg.h
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@@ -676,8 +676,9 @@
#define AR_RC_HOSTIF 0x00000100
#define AR_WA 0x4004
#define AR_WA_D3_L1_DISABLE (1 << 14)
#define AR9285_WA_DEFAULT 0x004a05cb
#define AR9280_WA_DEFAULT 0x0040073f
#define AR9280_WA_DEFAULT 0x0040073b
#define AR_WA_DEFAULT 0x0000073f