[PATCH] phy: xilinx: zynqmp: skip PHY initialization and PLL lock for USB

From: Piyush Mehta
Date: Wed Aug 18 2021 - 04:43:46 EST


PHY initialization for USB is required on linux boot or when
gt lane is changed from the current one and it is applicable
on PLL lock too.

Signed-off-by: Piyush Mehta <piyush.mehta@xxxxxxxxxx>
---
drivers/phy/xilinx/phy-zynqmp.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/phy/xilinx/phy-zynqmp.c b/drivers/phy/xilinx/phy-zynqmp.c
index 35652152ce5d..f478d8a17115 100644
--- a/drivers/phy/xilinx/phy-zynqmp.c
+++ b/drivers/phy/xilinx/phy-zynqmp.c
@@ -626,6 +626,9 @@ static int xpsgtr_phy_power_on(struct phy *phy)
struct xpsgtr_phy *gtr_phy = phy_get_drvdata(phy);
int ret = 0;

+ /* Skip initialization if not required. */
+ if (!xpsgtr_phy_init_required(gtr_phy))
+ return ret;
/*
* Wait for the PLL to lock. For DP, only wait on DP0 to avoid
* cumulating waits for both lanes. The user is expected to initialize
--
2.25.1