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Subject[PATCH 2/6] phy: phy-bcm-ns2-usbdrd: convert to readl_poll_timeout_atomic()
Date
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 --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)
--
1.9.1
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