[PATCH 3/6] phy: phy-bcm-sr-usb: convert to readl_poll_timeout_atomic()
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
Date: 2020-08-25 02:05:12
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-sr-usb.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/phy/broadcom/phy-bcm-sr-usb.c b/drivers/phy/broadcom/phy-bcm-sr-usb.c
index 77c025a..c3e99ad 100644
--- a/drivers/phy/broadcom/phy-bcm-sr-usb.c
+++ b/drivers/phy/broadcom/phy-bcm-sr-usb.c@@ -5,6 +5,7 @@ #include <linux/delay.h> #include <linux/io.h> +#include <linux/iopoll.h> #include <linux/module.h> #include <linux/of.h> #include <linux/phy/phy.h>
@@ -109,19 +110,15 @@ static inline void bcm_usb_reg32_setbits(void __iomem *addr, uint32_t set) static int bcm_usb_pll_lock_check(void __iomem *addr, u32 bit) { - int retry; - u32 rd_data; + u32 data; + int ret; - retry = PLL_LOCK_RETRY_COUNT; - do { - rd_data = readl(addr); - if (rd_data & bit) - return 0; - udelay(1); - } while (--retry > 0); + ret = readl_poll_timeout_atomic(addr, data, (data & bit), 1, + PLL_LOCK_RETRY_COUNT); + if (ret) + pr_err("%s: FAIL\n", __func__); - pr_err("%s: FAIL\n", __func__); - return -ETIMEDOUT; + return ret; } static int bcm_usb_ss_phy_init(struct bcm_usb_phy_cfg *phy_cfg)
--
1.9.1
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