PCI: mediatek: Configure FC and FTS for functions other than 0

"PCI_FUNC(port->slot << 3)" is always 0, so previously
mtk_pcie_startup_port() only configured FC credits and FTs for function
0.

Compute "func" correctly so we also configure functions other than
0. This affects MT2701 and MT7623.

Link: https://lore.kernel.org/r/c529dbfc066f4bda9b87edbdbf771f207e69b84e.1604510053.git.ryder.lee@mediatek.com
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 23548b517e4b600b79c511008ed2e12c70d74de7..8af04848e0f965035a5eb52bc756a627209a28d2 100644 (file)
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -760,7 +760,7 @@ static struct pci_ops mtk_pcie_ops = {
 static int mtk_pcie_startup_port(struct mtk_pcie_port *port)
 {
        struct mtk_pcie *pcie = port->pcie;
-       u32 func = PCI_FUNC(port->slot << 3);
+       u32 func = PCI_FUNC(port->slot);
        u32 slot = PCI_SLOT(port->slot << 3);
        u32 val;
        int err;