PCI: apple: Drop poll for CORE_RC_PHYIF_STAT_REFCLK

This is checking a core refclk in per-port setup which doesn't make a
lot of sense, and the bootloader needs to have gone through this anyway.

It doesn't work on T602x, so just drop it across the board.

Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Tested-by: Janne Grunau <j@jannau.net>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Link: https://patch.msgid.link/20250401091713.2765724-11-maz@kernel.org

Author: marcan

drivers/pci/controller/pcie-apple.c

@@ -475,12 +475,6 @@ static int apple_pcie_setup_refclk(struct apple_pcie *pcie,
 	u32 stat;
 	int res;
 
-	res = readl_relaxed_poll_timeout(pcie->base + CORE_RC_PHYIF_STAT, stat,
-					 stat & CORE_RC_PHYIF_STAT_REFCLK,
-					 100, 50000);
-	if (res < 0)
-		return res;
-
 	rmw_set(PHY_LANE_CTL_CFGACC, port->phy + PHY_LANE_CTL);
 	rmw_set(PHY_LANE_CFG_REFCLK0REQ, port->phy + PHY_LANE_CFG);