Commit 30052c5a authored by Ping-Ke Shih's avatar Ping-Ke Shih Committed by Kalle Valo
Browse files

rtw89: 8852c: rfk: add RCK 



RCK is synchronize RC calibration. It needs to be triggered only once when
interface is going to up.

Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220502235408.15052-6-pkshih@realtek.com
parent e5efc4d5

drivers/net/wireless/realtek/rtw89/rtw8852c.c

+1 −0
Original line number Diff line number Diff line
@@ -1777,6 +1777,7 @@ static void rtw8852c_rfk_init(struct rtw89_dev *rtwdev) 
	memset(mcc_info, 0, sizeof(*mcc_info));

	rtw8852c_lck_init(rtwdev);



	rtw8852c_rck(rtwdev);

	rtw8852c_dack(rtwdev);

}

drivers/net/wireless/realtek/rtw89/rtw8852c_rfk.c

+43 −0
Original line number Diff line number Diff line
@@ -470,6 +470,41 @@ static void _dac_cal(struct rtw89_dev *rtwdev, bool force) 
	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[DACK]DACK finish!!!\n");

}



static void _rck(struct rtw89_dev *rtwdev, enum rtw89_rf_path path)

{

	u32 rf_reg5, rck_val = 0;

	u32 val;

	int ret;



	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[RCK] ====== S%d RCK ======\n", path);



	rf_reg5 = rtw89_read_rf(rtwdev, path, RR_RSV1, RFREG_MASK);



	rtw89_write_rf(rtwdev, path, RR_RSV1, RR_RSV1_RST, 0x0);

	rtw89_write_rf(rtwdev, path, RR_MOD, RR_MOD_MASK, RR_MOD_V_RX);



	rtw89_debug(rtwdev, RTW89_DBG_RFK, "[RCK] RF0x00 = 0x%x\n",

		    rtw89_read_rf(rtwdev, path, RR_MOD, RFREG_MASK));



	/* RCK trigger */

	rtw89_write_rf(rtwdev, path, RR_RCKC, RFREG_MASK, 0x00240);



	ret = read_poll_timeout_atomic(rtw89_read_rf, val, val, 2, 20,

				       false, rtwdev, path, 0x1c, BIT(3));

	if (ret)

		rtw89_debug(rtwdev, RTW89_DBG_RFK, "[RCK] RCK timeout\n");



	rck_val = rtw89_read_rf(rtwdev, path, RR_RCKC, RR_RCKC_CA);

	rtw89_write_rf(rtwdev, path, RR_RCKC, RFREG_MASK, rck_val);



	rtw89_write_rf(rtwdev, path, RR_RSV1, RFREG_MASK, rf_reg5);



	rtw89_debug(rtwdev, RTW89_DBG_RFK,

		    "[RCK] RF 0x1b / 0x1c = 0x%x / 0x%x\n",

		    rtw89_read_rf(rtwdev, path, RR_RCKC, RFREG_MASK),

		    rtw89_read_rf(rtwdev, path, RR_RCKS, RFREG_MASK));

}



static void _tssi_set_sys(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy,

			  enum rtw89_rf_path path)

{
@@ -1619,6 +1654,14 @@ void rtw8852c_set_channel_rf(struct rtw89_dev *rtwdev, 
			    param->bandwidth);

}



void rtw8852c_rck(struct rtw89_dev *rtwdev)

{

	u8 path;



	for (path = 0; path < 2; path++)

		_rck(rtwdev, path);

}



void rtw8852c_dack(struct rtw89_dev *rtwdev)

{

	u8 phy_map = rtw89_btc_phymap(rtwdev, RTW89_PHY_0, 0);

drivers/net/wireless/realtek/rtw89/rtw8852c_rfk.h

+1 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 


#include "core.h"



void rtw8852c_rck(struct rtw89_dev *rtwdev);

void rtw8852c_dack(struct rtw89_dev *rtwdev);

void rtw8852c_tssi(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy);

void rtw8852c_tssi_scan(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy);