From: Deren Wu <deren.wu@mediatek.com>
Date: Sat, 14 Jan 2023 04:56:46 +0000 (+0800)
Subject: wifi: mt76: add flexible polling wait-interval support
X-Git-Tag: v6.3-rc1~162^2~39^2~101^2~33
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=35effe6c0c24adcf0f732bb1c3d75573d4c88e63;p=thirdparty%2Fkernel%2Flinux.git

wifi: mt76: add flexible polling wait-interval support

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>
---

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index f351a37c47f76..4a1d8be06b0a7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -909,10 +909,11 @@ 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)
 {