Sergio Paracuellos 7d761b084b staging: mt7621-pci: fix hang when nothing is connected to pcie ports ... When nothing is connected to pcie ports, each port is set to reset state. When this occurs, next access result in a hang on boot as follows: mt7621-pci 1e140000.pcie: pcie0 no card, disable it (RST & CLK) mt7621-pci 1e140000.pcie: pcie1 no card, disable it (RST & CLK) mt7621-pci 1e140000.pcie: pcie2 no card, disable it (RST & CLK) [ HANGS HERE ] Fix this just detecting 'nothing is connected state' to avoid next accesses to pcie port related configuration registers. Fixes: b99cc3a2b6 ("staging: mt7621-pci: avoid custom 'map_irq' function") Cc: stable <stable@vger.kernel.org> Reported-by: DENG Qingfang <dqfext@gmail.com> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Link: https://lore.kernel.org/r/20210823170803.2108-1-sergio.paracuellos@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-08-26 12:06:37 +02:00
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Kconfig	MIPS: ralink: enable PCI support only if driver for mt7621 SoC is selected	2019-11-14 13:09:37 +08:00
Makefile	staging: add missing SPDX lines to Makefile files	2019-04-03 11:10:15 +02:00
TODO	staging: mt7621-pci: Update driver TODO file	2020-09-13 09:26:18 +02:00
mediatek,mt7621-pci.txt	staging: mt7621-pci: bindings: update doc accordly to last changes	2020-03-17 12:53:07 +01:00
pci-mt7621.c	staging: mt7621-pci: fix hang when nothing is connected to pcie ports	2021-08-26 12:06:37 +02:00