write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/usb/phy/phy-ulpi-viewport.c
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@@ -7,6 +7,7 @@
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 #include <linux/kernel.h>
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 #include <linux/usb.h>
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 #include <linux/io.h>
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+#include <linux/iopoll.h>
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 #include <linux/usb/otg.h>
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 #include <linux/usb/ulpi.h>
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@@ -20,16 +21,9 @@
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 static int ulpi_viewport_wait(void __iomem *view, u32 mask)
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 {
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-	unsigned long usec = 2000;
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+	u32 val;
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-	while (usec--) {
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-		if (!(readl(view) & mask))
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-			return 0;
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-
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-		udelay(1);
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-	}
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-
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-	return -ETIMEDOUT;
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+	return readl_poll_timeout_atomic(view, val, !(val & mask), 1, 2000);
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 }
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 static int ulpi_viewport_read(struct usb_phy *otg, u32 reg)