diff options
Diffstat (limited to 'drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c')
| -rw-r--r-- | drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c b/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c index fec1da470d26..7bacc527fbad 100644 --- a/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c +++ b/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c @@ -10,6 +10,7 @@ #include <linux/delay.h> #include <linux/regmap.h> #include <linux/mfd/syscon.h> +#include <linux/bitfield.h> /* USB QSCRATCH Hardware registers */ #define QSCRATCH_GENERAL_CFG (0x08) @@ -74,20 +75,20 @@ PHY_PARAM_CTRL1_LOS_BIAS_MASK) #define PHY_PARAM_CTRL1_TX_FULL_SWING(x) \ - (((x) << 20) & PHY_PARAM_CTRL1_TX_FULL_SWING_MASK) + FIELD_PREP(PHY_PARAM_CTRL1_TX_FULL_SWING_MASK, (x)) #define PHY_PARAM_CTRL1_TX_DEEMPH_6DB(x) \ - (((x) << 14) & PHY_PARAM_CTRL1_TX_DEEMPH_6DB_MASK) + FIELD_PREP(PHY_PARAM_CTRL1_TX_DEEMPH_6DB_MASK, (x)) #define PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB(x) \ - (((x) << 8) & PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB_MASK) + FIELD_PREP(PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB_MASK, x) #define PHY_PARAM_CTRL1_LOS_BIAS(x) \ - (((x) << 3) & PHY_PARAM_CTRL1_LOS_BIAS_MASK) + FIELD_PREP(PHY_PARAM_CTRL1_LOS_BIAS_MASK, (x)) /* RX OVRD IN HI bits */ #define RX_OVRD_IN_HI_RX_RESET_OVRD BIT(13) #define RX_OVRD_IN_HI_RX_RX_RESET BIT(12) #define RX_OVRD_IN_HI_RX_EQ_OVRD BIT(11) #define RX_OVRD_IN_HI_RX_EQ_MASK GENMASK(10, 7) -#define RX_OVRD_IN_HI_RX_EQ(x) ((x) << 8) +#define RX_OVRD_IN_HI_RX_EQ(x) FIELD_PREP(RX_OVRD_IN_HI_RX_EQ_MASK, (x)) #define RX_OVRD_IN_HI_RX_EQ_EN_OVRD BIT(7) #define RX_OVRD_IN_HI_RX_EQ_EN BIT(6) #define RX_OVRD_IN_HI_RX_LOS_FILTER_OVRD BIT(5) @@ -111,6 +112,9 @@ #define SS_CR_READ_REG BIT(0) #define SS_CR_WRITE_REG BIT(0) +#define LATCH_SLEEP 40 +#define LATCH_TIMEOUT 100 + struct usb_phy { void __iomem *base; struct device *dev; @@ -156,19 +160,9 @@ static inline void usb_phy_write_readback(struct usb_phy *phy_dwc3, static int wait_for_latch(void __iomem *addr) { - u32 retry = 10; - - while (true) { - if (!readl(addr)) - break; - - if (--retry == 0) - return -ETIMEDOUT; - - usleep_range(10, 20); - } + u32 val; - return 0; + return readl_poll_timeout(addr, val, !val, LATCH_SLEEP, LATCH_TIMEOUT); } /** |