wifi: mt76: add flexible polling wait-interval support

[ Upstream commit 35effe6c0c24adcf0f732bb1c3d75573d4c88e63 ]

The default waiting unit is 10ms and the value is too much for
data path related control. Provide a new API mt76_poll_msec_tick()
to support different cases, such as 1ms polling waiting kick.

Reviewed-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Stable-dep-of: c397fc1e6365 ("wifi: mt76: mt7921e: fix probe timeout after reboot")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 7bcf7a6b67df3cf2d053053a3f8830b7e83358af..9c753c6aabeffda1f288b6c2e696386f8493d722 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -904,10 +904,11 @@ bool __mt76_poll(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
 
 #define mt76_poll(dev, ...) __mt76_poll(&((dev)->mt76), __VA_ARGS__)
 
-bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
-                     int timeout);
-
-#define mt76_poll_msec(dev, ...) __mt76_poll_msec(&((dev)->mt76), __VA_ARGS__)
+bool ____mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
+                       int timeout, int kick);
+#define __mt76_poll_msec(...)         ____mt76_poll_msec(__VA_ARGS__, 10)
+#define mt76_poll_msec(dev, ...)      ____mt76_poll_msec(&((dev)->mt76), __VA_ARGS__, 10)
+#define mt76_poll_msec_tick(dev, ...) ____mt76_poll_msec(&((dev)->mt76), __VA_ARGS__)
 
 void mt76_mmio_init(struct mt76_dev *dev, void __iomem *regs);
 void mt76_pci_disable_aspm(struct pci_dev *pdev);

diff --git a/drivers/net/wireless/mediatek/mt76/util.c b/drivers/net/wireless/mediatek/mt76/util.c
index 581964425468f96e4a2722bcdb4b2bceb02767aa..fc76c66ff1a5a58f1c73e9ff50ceeea4926b8063 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/util.c
+++ b/drivers/net/wireless/mediatek/mt76/util.c
@@ -24,23 +24,23 @@ bool __mt76_poll(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
 }
 EXPORT_SYMBOL_GPL(__mt76_poll);
 
-bool __mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
-                     int timeout)
+bool ____mt76_poll_msec(struct mt76_dev *dev, u32 offset, u32 mask, u32 val,
+                       int timeout, int tick)
 {
        u32 cur;
 
-       timeout /= 10;
+       timeout /= tick;
        do {
                cur = __mt76_rr(dev, offset) & mask;
                if (cur == val)
                        return true;
 
-               usleep_range(10000, 20000);
+               usleep_range(1000 * tick, 2000 * tick);
        } while (timeout-- > 0);
 
        return false;
 }
-EXPORT_SYMBOL_GPL(__mt76_poll_msec);
+EXPORT_SYMBOL_GPL(____mt76_poll_msec);
 
 int mt76_wcid_alloc(u32 *mask, int size)
 {