From 22e21e51ce755399fd42055a3f668ee4af370881 Mon Sep 17 00:00:00 2001 From: Nicolas Saenz Julienne Date: Thu, 7 May 2020 19:20:20 +0200 Subject: [PATCH] PCI: brcmstb: Assert fundamental reset on initialization While preparing the driver for upstream this detail was missed. If not asserted during the initialization process, devices connected on the bus will not be made aware of the internal reset happening. This, potentially resulting in unexpected behavior. Link: https://lore.kernel.org/r/20200507172020.18000-1-nsaenzjulienne@suse.de Fixes: c0452137034b ("PCI: brcmstb: Add Broadcom STB PCIe host controller driver") Signed-off-by: Nicolas Saenz Julienne Signed-off-by: Lorenzo Pieralisi Acked-by: Florian Fainelli --- drivers/pci/controller/pcie-brcmstb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c index 6d79d14527a6..9aa4cdc7557e 100644 --- a/drivers/pci/controller/pcie-brcmstb.c +++ b/drivers/pci/controller/pcie-brcmstb.c @@ -697,6 +697,7 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie) /* Reset the bridge */ brcm_pcie_bridge_sw_init_set(pcie, 1); + brcm_pcie_perst_set(pcie, 1); usleep_range(100, 200); -- 2.17.1