Commit 2d58bc77 authored by Christian Marangi's avatar Christian Marangi Committed by Manivannan Sadhasivam
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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: default avatarChristian Marangi <ansuelsmth@gmail.com>
Signed-off-by: default avatarManivannan Sadhasivam <mani@kernel.org>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20251020111121.31779-5-ansuelsmth@gmail.com
parent 04305367

drivers/pci/controller/pcie-mediatek.c

+1 −6
Original line number Diff line number Diff line
@@ -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);