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[2/6] phy: phy-bcm-ns2-usbdrd: convert to readl_poll_timeout_atomic()

Message ID 1598320987-25518-2-git-send-email-chunfeng.yun@mediatek.com (mailing list archive)
State New, archived
Headers show
Series [1/6] phy: phy-bcm-ns-usb3: convert to readl_poll_timeout_atomic() | expand

Commit Message

Chunfeng Yun (云春峰) Aug. 25, 2020, 2:03 a.m. UTC 
Use readl_poll_timeout_atomic() to simplify code

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c b/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c
index 5276259..9630ac1 100644
--- a/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c
+++ b/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c
@@ -18,6 +18,7 @@ 
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/iopoll.h>
 #include <linux/irq.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
@@ -87,17 +88,11 @@  struct ns2_phy_data {
 static inline int pll_lock_stat(u32 usb_reg, int reg_mask,
 				struct ns2_phy_driver *driver)
 {
-	int retry = PLL_LOCK_RETRY;
 	u32 val;
 
-	do {
-		udelay(1);
-		val = readl(driver->icfgdrd_regs + usb_reg);
-		if (val & reg_mask)
-			return 0;
-	} while (--retry > 0);
-
-	return -EBUSY;
+	return readl_poll_timeout_atomic(driver->icfgdrd_regs + usb_reg,
+					 val, (val & reg_mask), 1,
+					 PLL_LOCK_RETRY);
 }
 
 static int ns2_drd_phy_init(struct phy *phy)