Commit a4b9f641 authored by Vikas Patel's avatar Vikas Patel Committed by Kalle Valo
Browse files

ath10k: avoid consecutive OTP download to reduce boot time 



Currently, OTP is downloaded twice in case of "pre-cal-dt"
and "pre-cal-file" to fetch the board ID and takes around
~2 sec more boot uptime.

First OTP download happens in "ath10k_core_probe_fw" and
second in ath10k_core_start. First boot does not need OTP
download in core start when valid board id acquired.

The second OTP download is required upon core stop/start.

This patch skips the OTP download when first OTP download
has acquired a valid board id. This patch also marks board
id invalid in "ath10k_core_stop", which will force the OTP
download in ath10k_core_start and fetches valid board id.

Tested HW: QCA9984
Tested FW: 10.4-3.6-00104

Signed-off-by: default avatarVikas Patel <vikpatel@codeaurora.org>
Signed-off-by: default avatarMaharaja Kennadyrajan <mkenna@codeaurora.org>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 92bacd1c

drivers/net/wireless/ath/ath10k/core.c

+11 −0
Original line number Diff line number Diff line
@@ -874,6 +874,13 @@ static int ath10k_core_get_board_id_from_otp(struct ath10k *ar) 
		return -ENODATA;

	}



	if (ar->id.bmi_ids_valid) {

		ath10k_dbg(ar, ATH10K_DBG_BOOT,

			   "boot already acquired valid otp board id,skip download, board_id %d chip_id %d\n",

			   ar->id.bmi_board_id, ar->id.bmi_chip_id);

		goto skip_otp_download;

	}



	ath10k_dbg(ar, ATH10K_DBG_BOOT,

		   "boot upload otp to 0x%x len %zd for board id\n",

		   address, ar->normal_mode_fw.fw_file.otp_len);
@@ -921,6 +928,8 @@ static int ath10k_core_get_board_id_from_otp(struct ath10k *ar) 
	ar->id.bmi_board_id = board_id;

	ar->id.bmi_chip_id = chip_id;



skip_otp_download:



	return 0;

}
@@ -2905,6 +2914,8 @@ void ath10k_core_stop(struct ath10k *ar) 
	ath10k_htt_tx_stop(&ar->htt);

	ath10k_htt_rx_free(&ar->htt);

	ath10k_wmi_detach(ar);



	ar->id.bmi_ids_valid = false;

}

EXPORT_SYMBOL(ath10k_core_stop);