6.6-stable review patch. If anyone has any objections, please let me know.
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From: Felix Fietkau nbd@nbd.name
[ Upstream commit 94667949ec3bbb2218c46ad0a0e7274c8832e494 ]
The WLAN + WED reset sequence relies on being able to receive interrupts from the card, in order to synchronize individual steps with the firmware. When WED is stopped, leave interrupts running and rely on the driver turning off unwanted ones. WED DMA also needs to be disabled before resetting.
Fixes: f78cd9c783e0 ("net: ethernet: mtk_wed: update mtk_wed_stop") Signed-off-by: Felix Fietkau nbd@nbd.name Link: https://lore.kernel.org/r/20240416082330.82564-1-nbd@nbd.name Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mediatek/mtk_wed.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c index 94376aa2b34c5..c7196055c8c98 100644 --- a/drivers/net/ethernet/mediatek/mtk_wed.c +++ b/drivers/net/ethernet/mediatek/mtk_wed.c @@ -598,13 +598,13 @@ mtk_wed_dma_disable(struct mtk_wed_device *dev) static void mtk_wed_stop(struct mtk_wed_device *dev) { + mtk_wed_dma_disable(dev); mtk_wed_set_ext_int(dev, false);
wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER, 0); wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, 0); wdma_w32(dev, MTK_WDMA_INT_MASK, 0); wdma_w32(dev, MTK_WDMA_INT_GRP2, 0); - wed_w32(dev, MTK_WED_WPDMA_INT_MASK, 0);
if (dev->hw->version == 1) return; @@ -617,7 +617,6 @@ static void mtk_wed_deinit(struct mtk_wed_device *dev) { mtk_wed_stop(dev); - mtk_wed_dma_disable(dev);
wed_clr(dev, MTK_WED_CTRL, MTK_WED_CTRL_WDMA_INT_AGENT_EN | @@ -1703,9 +1702,6 @@ mtk_wed_irq_get(struct mtk_wed_device *dev, u32 mask) static void mtk_wed_irq_set_mask(struct mtk_wed_device *dev, u32 mask) { - if (!dev->running) - return; - mtk_wed_set_ext_int(dev, !!mask); wed_w32(dev, MTK_WED_INT_MASK, mask); }