diff mbox series

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

Message ID 20210818084311.2643986-1-piyush.mehta@xilinx.com
State Accepted
Commit 89161cd00838ac25f401e3d149171908148af7be
Headers show
Series phy: xilinx: zynqmp: skip PHY initialization and PLL lock for USB | expand

Commit Message

Piyush Mehta Aug. 18, 2021, 8:43 a.m. UTC 
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@xilinx.com>
---
 drivers/phy/xilinx/phy-zynqmp.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Vinod Koul Aug. 18, 2021, 10:14 a.m. UTC | #1 
On 18-08-21, 14:13, Piyush Mehta wrote:
> 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.

Applied, thanks
diff mbox series

Patch

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