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Filename Latest commit message Latest commit date
Marek Vasut 35637acc98 spi: cadence: Correct initialisation of runtime PM again
[ Upstream commit 56912da7a68c8356df6a6740476237441b0b792a ]

The original implementation of RPM handling in probe() was mostly
correct, except it failed to call pm_runtime_get_*() to activate the
hardware. The subsequent fix, 734882a8bf ("spi: cadence: Correct
initialisation of runtime PM"), breaks the implementation further,
to the point where the system using this hard IP on ZynqMP hangs on
boot, because it accesses hardware which is gated off.

Undo 734882a8bf ("spi: cadence: Correct initialisation of runtime
PM") and instead add missing pm_runtime_get_noresume() and move the
RPM disabling all the way to the end of probe(). That makes ZynqMP
not hang on boot yet again.

Fixes: 734882a8bf ("spi: cadence: Correct initialisation of runtime PM")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210716182133.218640-1-marex@denx.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-28 13:30:56 +02:00
arch KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak 2021-07-28 13:30:56 +02:00
block rq-qos: fix missed wake-ups in rq_qos_throttle try two 2021-07-19 08:53:16 +02:00
certs certs: Move load_system_certificate_list to a common function 2021-06-30 08:47:55 -04:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation clocksource: Retry clock read if long delays detected 2021-07-14 16:53:18 +02:00
drivers spi: cadence: Correct initialisation of runtime PM again 2021-07-28 13:30:56 +02:00
fs f2fs: Show casefolding support only when supported 2021-07-25 14:35:13 +02:00
include net: validate lwtstate->data before returning from skb_tunnel_info() 2021-07-25 14:35:15 +02:00
init kbuild: add CONFIG_LD_IS_LLD 2021-06-30 08:47:44 -04:00
ipc
kernel sched/fair: Fix CFS bandwidth hrtimer expiry type 2021-07-25 14:35:13 +02:00
lib lib/decompress_unlz4.c: correctly handle zero-padding around initrds. 2021-07-20 16:10:46 +02:00
LICENSES
mm mm: slab: fix kmem_cache_create failed when sysfs node not destroyed 2021-07-25 14:35:14 +02:00
net netrom: Decrease sock refcount when sock timers expire 2021-07-28 13:30:56 +02:00
samples samples/bpf: Fix the error return code of xdp_redirect's main() 2021-07-14 16:53:30 +02:00
scripts kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set 2021-07-25 14:35:12 +02:00
security smackfs: restrict bytes count in smk_set_cipso() 2021-07-19 08:53:18 +02:00
sound ASoC: rt5631: Fix regcache sync errors on resume 2021-07-28 13:30:55 +02:00
tools bpftool: Check malloc return value in mount_bpffs_for_pin 2021-07-28 13:30:55 +02:00
usr
virt KVM: mmio: Fix use-after-free Read in kvm_vm_ioctl_unregister_coalesced_mmio 2021-07-20 16:10:40 +02:00
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MAINTAINERS
Makefile Linux 5.4.135 2021-07-25 14:35:16 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.