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| author | Carl Huang <cjhuang@codeaurora.org> | 2020-10-01 12:34:45 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-10-01 22:33:07 +0300 |
| commit | 9df6d8399d6789c4eb81878285e7808225a2a141 (patch) | |
| tree | 71e1f67a6e8ca4e2fe9fa8a76b51e83a3acd6c73 /drivers/net/wireless/ath/ath11k/htc.c | |
| parent | e838c14a9ee1dfe660527128d8f2e3191c8b1aad (diff) | |
| download | linux-9df6d8399d6789c4eb81878285e7808225a2a141.tar.xz | |
ath11k: set WMI pipe credit to 1 for QCA6390
For QCA6390, set wmi credit to 1 to avoid back-to-back write to
shadow register when shadow register is enabled.
Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1
Signed-off-by: Carl Huang <cjhuang@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-4-git-send-email-kvalo@codeaurora.org
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/htc.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/htc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/htc.c b/drivers/net/wireless/ath/ath11k/htc.c index 4de2350dfbf3..6b57dc273e0b 100644 --- a/drivers/net/wireless/ath/ath11k/htc.c +++ b/drivers/net/wireless/ath/ath11k/htc.c @@ -515,6 +515,12 @@ int ath11k_htc_wait_target(struct ath11k_htc *htc) return -ECOMM; } + /* For QCA6390, wmi endpoint uses 1 credit to avoid + * back-to-back write. + */ + if (ab->hw_params.supports_shadow_regs) + htc->total_transmit_credits = 1; + ath11k_htc_setup_target_buffer_assignments(htc); return 0; |