Commit 9df6d839 authored by Carl Huang's avatar Carl Huang Committed by Kalle Valo
Browse files

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: default avatarCarl Huang <cjhuang@codeaurora.org>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1601544890-13450-4-git-send-email-kvalo@codeaurora.org
parent e838c14a

drivers/net/wireless/ath/ath11k/htc.c

+6 −0
Original line number Diff line number Diff line
@@ -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;