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Mike Looijmans ea2fed7de3 phy-zynqmp: Postpone getting clock rate until actually needed 
[ Upstream commit 065d5885f6 ]

At probe time the driver would display the following error and abort:
  xilinx-psgtr fd400000.phy: Invalid rate 0 for reference clock 0

At probe time, the associated GTR driver (e.g. SATA or PCIe) hasn't
initialized the clock yet, so clk_get_rate() likely returns 0 if the clock
is programmable. So this driver only works if the clock is fixed.

The PHY driver doesn't need to know the clock frequency at probe yet, so
wait until the associated driver initializes the lane before requesting the
clock rate setting.

In addition to allowing the driver to be used with programmable clocks,
this also reduces the driver's runtime memory footprint by removing an
array of pointers from struct xpsgtr_phy.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20250428063648.22034-1-mike.looijmans@topic.nl
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Stable-dep-of: e4779e2a16 ("phy: zynqmp: fix clock error handling in xpsgtr_phy_init()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-08-19 17:14:06 +02:00
arch Revert "arm64: syscall: Ensure saved x0 is kept in-sync with tracer updates" 2026-08-19 17:14:03 +02:00
block partitions: aix: bound the pp_count scan to the ppe array 2026-07-24 15:51:24 +02:00
certs X.509: Fix validation of ASN.1 certificate header 2026-07-24 15:51:59 +02:00
crypto crypto: rsa-pkcs1pad: Don't WARN on an empty digest 2026-08-19 17:13:55 +02:00
Documentation PCI: Move Resizable BAR code to rebar.c 2026-07-24 15:51:58 +02:00
drivers phy-zynqmp: Postpone getting clock rate until actually needed 2026-08-19 17:14:06 +02:00
fs proc: Fix broken error paths for namespace links 2026-08-19 17:14:04 +02:00
include Bluetooth: RFCOMM: Fix session UAF in set_termios 2026-08-19 17:14:02 +02:00
init randomize_kstack: Maintain kstack_offset per task 2026-06-19 13:33:41 +02:00
io_uring io_uring/io-wq: re-check IO_WQ_BIT_EXIT for each linked work item 2026-07-24 15:51:21 +02:00
ipc ipc/shm: serialize orphan cleanup with shm_nattch updates 2026-06-19 13:33:38 +02:00
kernel tracing/probes: Prevent out-of-bounds write in __trace_probe_log_err() 2026-08-19 17:14:03 +02:00
lib lib/test_meminit: use && for bools 2026-07-24 15:51:32 +02:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm/huge_memory: update file PMD counter before folio_put() 2026-06-19 13:33:49 +02:00
net tls: separate no-async decryption request handling from async 2026-08-19 17:14:05 +02:00
samples tracing/events: Fix to check the simple_tsk_fn creation 2026-07-24 15:51:42 +02:00
scripts kconfig: fix potential NULL pointer dereference in conf_askvalue 2026-07-24 15:51:28 +02:00
security apparmor: fix label can not be immediately before a declaration 2026-07-24 15:51:39 +02:00
sound ASoC: max98090: fix missing IS_ERR() before PTR_ERR() on mclk lookup 2026-08-19 17:14:06 +02:00
tools bitops: make BYTES_TO_BITS() treewide-available 2026-07-24 15:51:56 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-06-27 11:05:22 +01:00
virt KVM: Move kvm_io_bus_get_dev() locking responsibilities to callers 2026-07-24 15:52:02 +02:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:11:10 +02:00
.mailmap mailmap: add Andrej Shadura 2021-10-18 20:22:03 -10:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Daniel Drake to credits 2021-09-21 08:34:58 +03:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS staging: rtl8712: Remove driver using deprecated API wext 2025-12-07 06:09:36 +09:00
Makefile Linux 5.15.215 2026-08-07 08:07:31 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.