diff options
Diffstat (limited to 'drivers/phy/marvell/phy-pxa-28nm-usb2.c')
| -rw-r--r-- | drivers/phy/marvell/phy-pxa-28nm-usb2.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/drivers/phy/marvell/phy-pxa-28nm-usb2.c b/drivers/phy/marvell/phy-pxa-28nm-usb2.c index 9fd881787fa6..a175ae915f02 100644 --- a/drivers/phy/marvell/phy-pxa-28nm-usb2.c +++ b/drivers/phy/marvell/phy-pxa-28nm-usb2.c @@ -13,6 +13,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/io.h> +#include <linux/iopoll.h> #include <linux/err.h> #include <linux/clk.h> #include <linux/module.h> @@ -138,15 +139,12 @@ struct mv_usb2_phy { struct clk *clk; }; -static bool wait_for_reg(void __iomem *reg, u32 mask, unsigned long timeout) +static int wait_for_reg(void __iomem *reg, u32 mask, u32 ms) { - timeout += jiffies; - while (time_is_after_eq_jiffies(timeout)) { - if ((readl(reg) & mask) == mask) - return true; - msleep(1); - } - return false; + u32 val; + + return readl_poll_timeout(reg, val, ((val & mask) == mask), + 1000, 1000 * ms); } static int mv_usb2_phy_28nm_init(struct phy *phy) @@ -208,24 +206,23 @@ static int mv_usb2_phy_28nm_init(struct phy *phy) */ /* Make sure PHY Calibration is ready */ - if (!wait_for_reg(base + PHY_28NM_CAL_REG, - PHY_28NM_PLL_PLLCAL_DONE | PHY_28NM_PLL_IMPCAL_DONE, - HZ / 10)) { + ret = wait_for_reg(base + PHY_28NM_CAL_REG, + PHY_28NM_PLL_PLLCAL_DONE | PHY_28NM_PLL_IMPCAL_DONE, + 100); + if (ret) { dev_warn(&pdev->dev, "USB PHY PLL calibrate not done after 100mS."); - ret = -ETIMEDOUT; goto err_clk; } - if (!wait_for_reg(base + PHY_28NM_RX_REG1, - PHY_28NM_RX_SQCAL_DONE, HZ / 10)) { + ret = wait_for_reg(base + PHY_28NM_RX_REG1, + PHY_28NM_RX_SQCAL_DONE, 100); + if (ret) { dev_warn(&pdev->dev, "USB PHY RX SQ calibrate not done after 100mS."); - ret = -ETIMEDOUT; goto err_clk; } /* Make sure PHY PLL is ready */ - if (!wait_for_reg(base + PHY_28NM_PLL_REG0, - PHY_28NM_PLL_READY, HZ / 10)) { + ret = wait_for_reg(base + PHY_28NM_PLL_REG0, PHY_28NM_PLL_READY, 100); + if (ret) { dev_warn(&pdev->dev, "PLL_READY not set after 100mS."); - ret = -ETIMEDOUT; goto err_clk; } |