PCI: mediatek: Use generic MACRO for TPVPERL delay

Use the generic PCI MACRO for TPVPERL delay to wait for clock and power
stabilization after PERST# Signal instead of the raw value of 100 ms.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20251020111121.31779-5-ansuelsmth@gmail.com

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index cbffa3156da1ff4c885d7186930bca205def8102..313da61a0b8aa57ee88cc2740aa3c200532f27fa 100644 (file)
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -697,12 +697,7 @@ static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port)
         */
        writel(PCIE_LINKDOWN_RST_EN, port->base + PCIE_RST_CTRL);
 
-       /*
-        * Described in PCIe CEM specification sections 2.2 (PERST# Signal) and
-        * 2.2.1 (Initial Power-Up (G3 to S0)). The deassertion of PERST# should
-        * be delayed 100ms (TPVPERL) for the power and clock to become stable.
-        */
-       msleep(100);
+       msleep(PCIE_T_PVPERL_MS);
 
        /* De-assert PHY, PE, PIPE, MAC and configuration reset */
        val = readl(port->base + PCIE_RST_CTRL);