diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/pci.c')
-rw-r--r-- | drivers/net/wireless/realtek/rtw88/pci.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c index e7d17ab8f113..0f95a9555aea 100644 --- a/drivers/net/wireless/realtek/rtw88/pci.c +++ b/drivers/net/wireless/realtek/rtw88/pci.c @@ -1359,6 +1359,25 @@ static void rtw_pci_clkreq_set(struct rtw_dev *rtwdev, bool enable) rtw_dbi_write8(rtwdev, RTK_PCIE_LINK_CFG, value); } +static void rtw_pci_clkreq_pad_low(struct rtw_dev *rtwdev, bool enable) +{ + u8 value; + int ret; + + ret = rtw_dbi_read8(rtwdev, RTK_PCIE_LINK_CFG, &value); + if (ret) { + rtw_err(rtwdev, "failed to read CLKREQ_L1, ret=%d", ret); + return; + } + + if (enable) + value &= ~BIT_CLKREQ_N_PAD; + else + value |= BIT_CLKREQ_N_PAD; + + rtw_dbi_write8(rtwdev, RTK_PCIE_LINK_CFG, value); +} + static void rtw_pci_aspm_set(struct rtw_dev *rtwdev, bool enable) { u8 value; @@ -1500,11 +1519,25 @@ static void rtw_pci_phy_cfg(struct rtw_dev *rtwdev) static int __maybe_unused rtw_pci_suspend(struct device *dev) { + struct ieee80211_hw *hw = dev_get_drvdata(dev); + struct rtw_dev *rtwdev = hw->priv; + struct rtw_chip_info *chip = rtwdev->chip; + struct rtw_efuse *efuse = &rtwdev->efuse; + + if (chip->id == RTW_CHIP_TYPE_8822C && efuse->rfe_option == 6) + rtw_pci_clkreq_pad_low(rtwdev, true); return 0; } static int __maybe_unused rtw_pci_resume(struct device *dev) { + struct ieee80211_hw *hw = dev_get_drvdata(dev); + struct rtw_dev *rtwdev = hw->priv; + struct rtw_chip_info *chip = rtwdev->chip; + struct rtw_efuse *efuse = &rtwdev->efuse; + + if (chip->id == RTW_CHIP_TYPE_8822C && efuse->rfe_option == 6) + rtw_pci_clkreq_pad_low(rtwdev, false); return 0; } |