From: JB Tsai <jb.tsai@mediatek.com>
To: <nbd@nbd.name>, <lorenzo@kernel.org>
Cc: <linux-wireless@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>, <Sean.Wang@mediatek.com>,
<Quan.Zhou@mediatek.com>, <Ryder.Lee@mediatek.com>,
<Leon.Yen@mediatek.com>, <litien.chang@mediatek.com>,
<jeff.hsu@mediatek.com>, <jb.tsai@mediatek.com>,
Jeff Hsu <Jeff.Hsu@mediatek.com>
Subject: [PATCH] wifi: mt76: mt7925: Add flag to control if need DMA re-init
Date: Mon, 6 Jul 2026 10:43:06 +0800 [thread overview]
Message-ID: <20260706024306.47806-1-jb.tsai@mediatek.com> (raw)
From: Jeff Hsu <Jeff.Hsu@mediatek.com>
Add flag(skip_wpdma_reinit) to control if need do DMA re-init
Signed-off-by: Jeff Hsu <Jeff.Hsu@mediatek.com>
---
drivers/net/wireless/mediatek/mt76/mt7925/pci.c | 4 ++++
drivers/net/wireless/mediatek/mt76/mt792x.h | 1 +
drivers/net/wireless/mediatek/mt76/mt792x_dma.c | 5 +++++
3 files changed, 10 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
index c8537a5cdf67..154e4372664e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c
@@ -650,6 +650,10 @@ static int mt7925_pci_probe(struct pci_dev *pdev,
if (!mt7925_disable_aspm && mt76_pci_aspm_supported(pdev))
dev->aspm_supported = true;
+ /* MT7935 does not need wpdma reinit */
+ if (is_mt7928(&dev->mt76))
+ dev->skip_wpdma_reinit = true;
+
ret = __mt792x_mcu_fw_pmctrl(dev);
if (ret)
goto err_free_dev;
diff --git a/drivers/net/wireless/mediatek/mt76/mt792x.h b/drivers/net/wireless/mediatek/mt76/mt792x.h
index 8c7ecd3ce126..18d6e2c35606 100644
--- a/drivers/net/wireless/mediatek/mt76/mt792x.h
+++ b/drivers/net/wireless/mediatek/mt76/mt792x.h
@@ -271,6 +271,7 @@ struct mt792x_dev {
bool hif_idle:1;
bool hif_resumed:1;
bool regd_change:1;
+ bool skip_wpdma_reinit:1;
wait_queue_head_t wait;
struct work_struct init_work;
diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c
index 8ad94fa58340..8308935491d3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c
@@ -418,6 +418,11 @@ int mt792x_wpdma_reinit_cond(struct mt792x_dev *dev)
struct mt76_connac_pm *pm = &dev->pm;
int err;
+ /* Skip wpdma reinit if chip doesn't need it */
+ if (dev->skip_wpdma_reinit) {
+ return 0;
+ }
+
/* check if the wpdma must be reinitialized */
if (mt792x_dma_need_reinit(dev)) {
/* disable interrutpts */
--
2.45.2
reply other threads:[~2026-07-06 2:43 UTC|newest]
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