diff options
| author | Patrick Delaunay | 2019-03-29 15:42:13 +0100 |
|---|---|---|
| committer | Marek Vasut | 2019-04-21 10:26:51 +0200 |
| commit | 901f6950a482d11849b7c748eaef7bda010e91dc (patch) | |
| tree | f8e4a314684717c3a2a0a5c27c7e99f136d3aee2 /drivers/phy | |
| parent | e1904abc1bf90e9b382042a45d645d3dd6fbe8b0 (diff) | |
phy: usbphyc: increase PLL wait timeout
wait 200us to solve USB init issue on device mode
(ums and stm32prog commands)
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/phy-stm32-usbphyc.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/phy/phy-stm32-usbphyc.c b/drivers/phy/phy-stm32-usbphyc.c index 54363cd165f..6f1119036d7 100644 --- a/drivers/phy/phy-stm32-usbphyc.c +++ b/drivers/phy/phy-stm32-usbphyc.c @@ -37,7 +37,8 @@ #define MAX_PHYS 2 -#define PLL_LOCK_TIME_US 100 +/* max 100 us for PLL lock and 100 us for PHY init */ +#define PLL_INIT_TIME_US 200 #define PLL_PWR_DOWN_TIME_US 5 #define PLL_FVCO 2880 /* in MHz */ #define PLL_INFF_MIN_RATE 19200000 /* in Hz */ @@ -177,11 +178,8 @@ static int stm32_usbphyc_phy_init(struct phy *phy) setbits_le32(usbphyc->base + STM32_USBPHYC_PLL, PLLEN); - /* - * We must wait PLL_LOCK_TIME_US before checking that PLLEN - * bit is still set - */ - udelay(PLL_LOCK_TIME_US); + /* We must wait PLL_INIT_TIME_US before using PHY */ + udelay(PLL_INIT_TIME_US); if (!(readl(usbphyc->base + STM32_USBPHYC_PLL) & PLLEN)) return -EIO; |