This is a note to let you know that I've just added the patch titled
wifi: mt76: add flexible polling wait-interval support
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-mt76-add-flexible-polling-wait-interval-support.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f5a5da248f300fd402fd2598b8ccaa1eb9aa7f24
Author: Deren Wu <deren.wu@xxxxxxxxxxxx>
Date: Sat Jan 14 12:56:46 2023 +0800
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@xxxxxxxxxx>
Signed-off-by: Deren Wu <deren.wu@xxxxxxxxxxxx>
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Stable-dep-of: c397fc1e6365 ("wifi: mt76: mt7921e: fix probe timeout after reboot")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 4e4af6e17b503..eb1fb955b7777 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -820,10 +820,11 @@ 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 581964425468f..fc76c66ff1a5a 100644
--- 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)
{
