[PATCH 2/6] phy: phy-bcm-ns2-usbdrd: convert to readl_poll_timeout_atomic()
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: 2020-08-25 02:04:48
Also in:
linux-arm-msm, linux-mediatek, lkml
Subsystem:
generic phy framework, the rest · Maintainers:
Vinod Koul, Linus Torvalds
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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