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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     <kvalo@kernel.org>
CC:     <timlee@realtek.com>, <kevin_yang@realtek.com>,
        <linux-wireless@vger.kernel.org>
Subject: [PATCH 1/3] wifi: rtw89: 8852c: L1 DMA reset has offloaded to FW
Date:   Mon, 12 Sep 2022 15:17:04 +0800
Message-ID: <20220912071706.13619-2-pkshih@realtek.com>
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From: Zong-Zhe Yang <kevin_yang@realtek.com>

For 8852C, rtw89_pci_lv1rst_stop_dma() and rtw89_pci_lv1rst_start_dma()
are offloaded to FW L1 reset flow. So, driver no longer needs to do them.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/pci.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c
index d2cbe0468cd78..2c59ae06e4db9 100644
--- a/drivers/net/wireless/realtek/rtw89/pci.c
+++ b/drivers/net/wireless/realtek/rtw89/pci.c
@@ -3520,6 +3520,9 @@ static int rtw89_pci_lv1rst_stop_dma(struct rtw89_dev *rtwdev)
 	u32 val, dma_rst = 0;
 	int ret;
 
+	if (rtwdev->chip->chip_id == RTL8852C)
+		return 0;
+
 	rtw89_pci_ctrl_dma_all_pcie(rtwdev, MAC_AX_FUNC_DIS);
 	ret = rtw89_pci_poll_io_idle(rtwdev);
 	if (ret) {
@@ -3575,6 +3578,9 @@ static int rtw89_pci_lv1rst_start_dma(struct rtw89_dev *rtwdev)
 {
 	u32 ret;
 
+	if (rtwdev->chip->chip_id == RTL8852C)
+		return 0;
+
 	rtw89_pci_ctrl_hci_dma_en(rtwdev, MAC_AX_FUNC_DIS);
 	rtw89_pci_ctrl_hci_dma_en(rtwdev, MAC_AX_FUNC_EN);
 	rtw89_pci_clr_idx_all(rtwdev);
-- 
2.25.1