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[114.34.228.194]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3081eb95450sm11104825eec.28.2026.06.13.15.42.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 13 Jun 2026 15:42:40 -0700 (PDT) From: Sean Wang To: Felix Fietkau , Lorenzo Bianconi Cc: linux-wireless@vger.kernel.org, linux-mediatek@lists.infradead.org, Sean Wang Subject: [PATCH 5/6] wifi: mt76: mt792x: enable USB UDMA TX timeout Date: Sat, 13 Jun 2026 17:41:30 -0500 Message-ID: <20260613224131.2396026-6-sean.wang@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260613224131.2396026-1-sean.wang@kernel.org> References: <20260613224131.2396026-1-sean.wang@kernel.org> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Sean Wang Configure the USB UDMA TX timeout limit and enable timeout detection during DMA initialization, matching the vendor driver setup. Use a longer timeout to avoid false alarms. Signed-off-by: Sean Wang --- drivers/net/wireless/mediatek/mt76/mt792x_usb.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_usb.c b/drivers/net/wireless/mediatek/mt76/mt792x_usb.c index 43191a8a9ea4..c4da1b900d47 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_usb.c +++ b/drivers/net/wireless/mediatek/mt76/mt792x_usb.c @@ -11,6 +11,7 @@ #include "mt792x.h" #include "mt76_connac2_mac.h" +#define MT792X_USB_TX_TIMEOUT_LIMIT 50000 #define MT792X_USB_UDMA_IDLE_TIMEOUT 1000 static int mt792xu_read32(struct mt76_dev *dev, u32 addr, void *buf) @@ -396,6 +397,10 @@ int mt792xu_dma_init(struct mt792x_dev *dev, bool resume) mt76_set(dev, MT_UDMA_WLCFG_0, MT_WL_RX_EN | MT_WL_TX_EN | MT_WL_RX_MPSZ_PAD0 | MT_TICK_1US_EN); + mt76_rmw(dev, MT_UDMA_WLCFG_1, MT_WL_TX_TMOUT_LMT, + FIELD_PREP(MT_WL_TX_TMOUT_LMT, + MT792X_USB_TX_TIMEOUT_LIMIT)); + mt76_set(dev, MT_UDMA_WLCFG_0, MT_WL_TX_TMOUT_FUNC_EN); mt76_clear(dev, MT_UDMA_WLCFG_0, MT_WL_RX_AGG_TO | MT_WL_RX_AGG_LMT); mt76_clear(dev, MT_UDMA_WLCFG_1, MT_WL_RX_AGG_PKT_LMT); -- 2.43.0