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* [PATCH AUTOSEL 6.12 01/29] wifi: rtw89: add crystal_cap check to avoid setting as overflow value
@ 2025-01-26 15:01 Sasha Levin
  2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 02/29] tun: fix group permission check Sasha Levin
                   ` (27 more replies)
  0 siblings, 28 replies; 29+ messages in thread
From: Sasha Levin @ 2025-01-26 15:01 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Chih-Kang Chang, Ping-Ke Shih, Sasha Levin, kvalo, linux-wireless

From: Chih-Kang Chang <gary.chang@realtek.com>

[ Upstream commit 7b98caea39676561f22db58752551161bb36462b ]

In the original flow, the crystal_cap might be calculated as a negative
value and set as an overflow value. Therefore, we added a check to limit
the calculated crystal_cap value. Additionally, we shrank the crystal_cap
adjustment according to specific CFO.

Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20241128055433.11851-7-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/realtek/rtw89/phy.c | 11 ++++++-----
 drivers/net/wireless/realtek/rtw89/phy.h |  2 +-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c
index 4b47b45f897cb..5c31639b4cade 100644
--- a/drivers/net/wireless/realtek/rtw89/phy.c
+++ b/drivers/net/wireless/realtek/rtw89/phy.c
@@ -3892,7 +3892,6 @@ static void rtw89_phy_cfo_set_crystal_cap(struct rtw89_dev *rtwdev,
 
 	if (!force && cfo->crystal_cap == crystal_cap)
 		return;
-	crystal_cap = clamp_t(u8, crystal_cap, 0, 127);
 	if (chip->chip_id == RTL8852A || chip->chip_id == RTL8851B) {
 		rtw89_phy_cfo_set_xcap_reg(rtwdev, true, crystal_cap);
 		rtw89_phy_cfo_set_xcap_reg(rtwdev, false, crystal_cap);
@@ -4015,7 +4014,7 @@ static void rtw89_phy_cfo_crystal_cap_adjust(struct rtw89_dev *rtwdev,
 					     s32 curr_cfo)
 {
 	struct rtw89_cfo_tracking_info *cfo = &rtwdev->cfo_tracking;
-	s8 crystal_cap = cfo->crystal_cap;
+	int crystal_cap = cfo->crystal_cap;
 	s32 cfo_abs = abs(curr_cfo);
 	int sign;
 
@@ -4036,15 +4035,17 @@ static void rtw89_phy_cfo_crystal_cap_adjust(struct rtw89_dev *rtwdev,
 	}
 	sign = curr_cfo > 0 ? 1 : -1;
 	if (cfo_abs > CFO_TRK_STOP_TH_4)
-		crystal_cap += 7 * sign;
+		crystal_cap += 3 * sign;
 	else if (cfo_abs > CFO_TRK_STOP_TH_3)
-		crystal_cap += 5 * sign;
-	else if (cfo_abs > CFO_TRK_STOP_TH_2)
 		crystal_cap += 3 * sign;
+	else if (cfo_abs > CFO_TRK_STOP_TH_2)
+		crystal_cap += 1 * sign;
 	else if (cfo_abs > CFO_TRK_STOP_TH_1)
 		crystal_cap += 1 * sign;
 	else
 		return;
+
+	crystal_cap = clamp(crystal_cap, 0, 127);
 	rtw89_phy_cfo_set_crystal_cap(rtwdev, (u8)crystal_cap, false);
 	rtw89_debug(rtwdev, RTW89_DBG_CFO,
 		    "X_cap{Curr,Default}={0x%x,0x%x}\n",
diff --git a/drivers/net/wireless/realtek/rtw89/phy.h b/drivers/net/wireless/realtek/rtw89/phy.h
index 7e335c02ee6fb..9bb9c9c8e7a1b 100644
--- a/drivers/net/wireless/realtek/rtw89/phy.h
+++ b/drivers/net/wireless/realtek/rtw89/phy.h
@@ -57,7 +57,7 @@
 #define CFO_TRK_STOP_TH_4 (30 << 2)
 #define CFO_TRK_STOP_TH_3 (20 << 2)
 #define CFO_TRK_STOP_TH_2 (10 << 2)
-#define CFO_TRK_STOP_TH_1 (00 << 2)
+#define CFO_TRK_STOP_TH_1 (03 << 2)
 #define CFO_TRK_STOP_TH (2 << 2)
 #define CFO_SW_COMP_FINE_TUNE (2 << 2)
 #define CFO_PERIOD_CNT 15
-- 
2.39.5


^ permalink raw reply	[flat|nested] 29+ messages in thread

end of thread, other threads:[~2025-01-26 15:03 UTC | newest]

Thread overview: 29+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2025-01-26 15:01 [PATCH AUTOSEL 6.12 01/29] wifi: rtw89: add crystal_cap check to avoid setting as overflow value Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 02/29] tun: fix group permission check Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 03/29] mmc: core: Respect quirk_max_rate for non-UHS SDIO card Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 04/29] mmc: sdhci-esdhc-imx: enable 'SDHCI_QUIRK_NO_LED' quirk for S32G Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 05/29] Revert "HID: multitouch: Add support for lenovo Y9000P Touchpad" Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 06/29] wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 07/29] tomoyo: don't emit warning in tomoyo_write_control() Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 08/29] mfd: lpc_ich: Add another Gemini Lake ISA bridge PCI device-id Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 09/29] wifi: rtw88: add __packed attribute to efuse layout struct Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 10/29] clk: qcom: Make GCC_8150 depend on QCOM_GDSC Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 11/29] HID: multitouch: Add quirk for Hantick 5288 touchpad Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 12/29] HID: Wacom: Add PCI Wacom device support Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 13/29] net/mlx5: use do_aux_work for PHC overflow checks Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 14/29] wifi: brcmfmac: Check the return value of of_property_read_string_index() Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 15/29] wifi: iwlwifi: pcie: Add support for new device ids Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 16/29] wifi: iwlwifi: avoid memory leak Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 17/29] i2c: Force ELAN06FA touchpad I2C bus freq to 100KHz Sasha Levin
2025-01-26 15:01 ` [PATCH AUTOSEL 6.12 18/29] APEI: GHES: Have GHES honor the panic= setting Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 19/29] Bluetooth: btusb: Add new VID/PID 13d3/3610 for MT7922 Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 20/29] Bluetooth: btusb: Add new VID/PID 13d3/3628 for MT7925 Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 21/29] Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 22/29] net: wwan: iosm: Fix hibernation by re-binding the driver around it Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 23/29] HID: hid-asus: Disable OOBE mode on the ProArt P16 Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 24/29] mmc: sdhci-msm: Correctly set the load for the regulator Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 25/29] octeon_ep: update tx/rx stats locally for persistence Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 26/29] octeon_ep_vf: " Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 27/29] tipc: re-order conditions in tipc_crypto_key_rcv() Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 28/29] selftests/net/ipsec: Fix Null pointer dereference in rtattr_pack() Sasha Levin
2025-01-26 15:02 ` [PATCH AUTOSEL 6.12 29/29] net: ethernet: ti: am65-cpsw: ensure proper channel cleanup in error path Sasha Levin

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