From: Bitterblue Smith <rtl8821cerfe2@gmail.com>
To: "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Subject: [PATCH rtw-next v2 2/6] wifi: rtw89: 8852b: Fix rtw8852b_pwr_{on,off}_func() for USB
Date: Sat, 5 Jul 2025 22:37:32 +0300 [thread overview]
Message-ID: <c12da54f-88e6-4b11-8587-36f9cac13bf3@gmail.com> (raw)
In-Reply-To: <e6538194-116b-49b6-b2d5-2dbc69aa1a11@gmail.com>
There are a few differences in the power on/off functions between PCIE
and USB. The changes in the power off function in particular are needed
for the RTL8832BU to be able to power on again after it's powered off.
While the RTL8832BU appears to work without the changes in the power on
function, it's probably best to implement them, in case they are needed
in some situations.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
---
v2:
- Add Acked-by.
---
drivers/net/wireless/realtek/rtw89/rtw8852b.c | 21 +++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b.c b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
index b0b73a4a70a0..85b6849db798 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
@@ -299,7 +299,8 @@ static int rtw8852b_pwr_on_func(struct rtw89_dev *rtwdev)
rtw89_write8_clr(rtwdev, R_AX_PLATFORM_ENABLE, B_AX_PLATFORM_EN);
rtw89_write8_set(rtwdev, R_AX_PLATFORM_ENABLE, B_AX_PLATFORM_EN);
- rtw89_write32_clr(rtwdev, R_AX_SYS_SDIO_CTRL, B_AX_PCIE_CALIB_EN_V1);
+ if (rtwdev->hci.type == RTW89_HCI_TYPE_PCIE)
+ rtw89_write32_clr(rtwdev, R_AX_SYS_SDIO_CTRL, B_AX_PCIE_CALIB_EN_V1);
rtw89_write32_set(rtwdev, R_AX_SYS_ADIE_PAD_PWR_CTRL, B_AX_SYM_PADPDN_WL_PTA_1P3);
@@ -361,7 +362,7 @@ static int rtw8852b_pwr_on_func(struct rtw89_dev *rtwdev)
rtw89_write32_mask(rtwdev, R_AX_SPS_DIG_ON_CTRL0, B_AX_VOL_L1_MASK, 0x9);
rtw89_write32_mask(rtwdev, R_AX_SPS_DIG_ON_CTRL0, B_AX_VREFPFM_L_MASK, 0xA);
- if (rtwdev->hal.cv == CHIP_CBV) {
+ if (rtwdev->hal.cv == CHIP_CBV && rtwdev->hci.type == RTW89_HCI_TYPE_PCIE) {
rtw89_write32_set(rtwdev, R_AX_PMC_DBG_CTRL2, B_AX_SYSON_DIS_PMCR_AX_WRMSK);
rtw89_write16_mask(rtwdev, R_AX_HCI_LDO_CTRL, B_AX_R_AX_VADJ_MASK, 0xA);
rtw89_write32_clr(rtwdev, R_AX_PMC_DBG_CTRL2, B_AX_SYSON_DIS_PMCR_AX_WRMSK);
@@ -443,10 +444,22 @@ static int rtw8852b_pwr_off_func(struct rtw89_dev *rtwdev)
if (ret)
return ret;
- rtw89_write32(rtwdev, R_AX_WLLPS_CTRL, SW_LPS_OPTION);
+ if (rtwdev->hci.type == RTW89_HCI_TYPE_PCIE)
+ rtw89_write32(rtwdev, R_AX_WLLPS_CTRL, SW_LPS_OPTION);
+ else if (rtwdev->hci.type == RTW89_HCI_TYPE_USB)
+ rtw89_write32_clr(rtwdev, R_AX_SYS_PW_CTRL, B_AX_SOP_EDSWR);
+
rtw89_write32_set(rtwdev, R_AX_SYS_SWR_CTRL1, B_AX_SYM_CTRL_SPS_PWMFREQ);
rtw89_write32_mask(rtwdev, R_AX_SPS_DIG_ON_CTRL0, B_AX_REG_ZCDC_H_MASK, 0x3);
- rtw89_write32_set(rtwdev, R_AX_SYS_PW_CTRL, B_AX_APFM_SWLPS);
+
+ if (rtwdev->hci.type == RTW89_HCI_TYPE_PCIE) {
+ rtw89_write32_set(rtwdev, R_AX_SYS_PW_CTRL, B_AX_APFM_SWLPS);
+ } else if (rtwdev->hci.type == RTW89_HCI_TYPE_USB) {
+ val32 = rtw89_read32(rtwdev, R_AX_SYS_PW_CTRL);
+ val32 &= ~B_AX_AFSM_PCIE_SUS_EN;
+ val32 |= B_AX_AFSM_WLSUS_EN;
+ rtw89_write32(rtwdev, R_AX_SYS_PW_CTRL, val32);
+ }
return 0;
}
--
2.49.0
next prev parent reply other threads:[~2025-07-05 19:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-05 19:34 [PATCH rtw-next v2 0/6] wifi: rtw89: Add support for RTL8852BU Bitterblue Smith
2025-07-05 19:36 ` [PATCH rtw-next v2 1/6] wifi: rtw89: 8852bx: Accept USB devices and load their MAC address Bitterblue Smith
2025-07-06 5:13 ` Ping-Ke Shih
2025-07-05 19:37 ` Bitterblue Smith [this message]
2025-07-05 19:38 ` [PATCH rtw-next v2 3/6] wifi: rtw89: 8852b: Add rtw8852b_dle_mem_usb3 Bitterblue Smith
2025-07-05 19:38 ` [PATCH rtw-next v2 4/6] wifi: rtw89: 8852b: Add rtw8852b_hfc_param_ini_usb Bitterblue Smith
2025-07-05 19:38 ` [PATCH rtw-next v2 5/6] wifi: rtw89: Add rtw8852bu.c Bitterblue Smith
2025-07-05 19:39 ` [PATCH rtw-next v2 6/6] wifi: rtw89: Enable the new rtw89_8852bu module Bitterblue Smith
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