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| author |   Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2020-05-07 19:20:20 +0200 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-05-11 11:42:10 +0100 |
| commit | 22e21e51ce755399fd42055a3f668ee4af370881 (patch) | |
| tree | 486263f42b9d8edd446bdcda43e7e4621c1c579b /drivers/pci/controller/pcie-brcmstb.c | |
| parent | Linux 5.7-rc1 (diff) | |
| download | linux-dev-22e21e51ce755399fd42055a3f668ee4af370881.tar.xz linux-dev-22e21e51ce755399fd42055a3f668ee4af370881.zip | |
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 <nsaenzjulienne@suse.de>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Diffstat (limited to 'drivers/pci/controller/pcie-brcmstb.c')
| -rw-r--r-- | drivers/pci/controller/pcie-brcmstb.c | 1 |
1 files changed, 1 insertions, 0 deletions
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); |