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Guenter Roeck aff6657f52 Revert "ASoC: mediatek: Check for error clk pointer" 
This reverts commit 38accfd85e which is
commit 9de2b9286a upstream

With this patch in the tree, Chromebooks running the affected hardware
no longer boot. Bisect points to this patch, and reverting it fixes
the problem.

An analysis of the code with this patch applied shows:

        ret = init_clks(pdev, clk);
        if (ret)
                return ERR_PTR(ret);
...
                for (j = 0; j < MAX_CLKS && data->clk_id[j]; j++) {
                        struct clk *c = clk[data->clk_id[j]];

                        if (IS_ERR(c)) {
                                dev_err(&pdev->dev, "%s: clk unavailable\n",
                                        data->name);
                                return ERR_CAST(c);
                        }

                        scpd->clk[j] = c;
                }

Not all clocks in the clk_names array have to be present. Only the clocks
in the data->clk_id array are actually needed. The code already checks if
the required clocks are available and bails out if not. The assumption that
all clocks have to be present is wrong, and commit 9de2b9286a needs to be
reverted.

Fixes: 9de2b9286a ("ASoC: mediatek: Check for error clk pointer")
Cc: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Cc: Mark Brown <broonie@kernel.org>
Cc: James Liao <jamesjj.liao@mediatek.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com
Cc: Frank Wunderlich <frank-w@public-files.de>
Cc: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/lkml/20220205014755.699603-1-linux@roeck-us.net/
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 18:34:06 +01:00
arch powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending 2022-02-01 17:27:12 +01:00
block block: bio-integrity: Advance seed correctly for larger interval sizes 2022-02-08 18:34:05 +01:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto crypto: jitter - consider 32 LSB for APT 2022-01-27 11:04:31 +01:00
Documentation Revert "fbcon: Disable accelerated scrolling" 2022-02-08 18:34:06 +01:00
drivers Revert "ASoC: mediatek: Check for error clk pointer" 2022-02-08 18:34:06 +01:00
fs Revert "fs/9p: search open fids first" 2022-02-08 18:34:04 +01:00
include mm/pgtable: define pte_index so that preprocessor could recognize it 2022-02-08 18:34:05 +01:00
init init: make unknown command line param message clearer 2021-11-18 19:17:11 +01:00
ipc ipc/sem: do not sleep with a spin lock held 2022-02-08 18:34:03 +01:00
kernel audit: improve audit queue handling when "audit=1" on cmdline 2022-02-08 18:34:03 +01:00
lib lib/test_meminit: destroy cache in kmem_cache_alloc_bulk() test 2022-01-27 11:05:44 +01:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm/kmemleak: avoid scanning potential huge holes 2022-02-08 18:34:05 +01:00
net mptcp: fix msk traversal in mptcp_nl_cmd_set_flags() 2022-02-08 18:34:06 +01:00
samples samples: bpf: Fix 'unknown warning group' build warning on Clang 2022-01-27 11:03:29 +01:00
scripts scripts: sphinx-pre-install: Fix ctex support on Debian 2022-01-27 11:05:44 +01:00
security selinux: fix double free of cond_list on error paths 2022-02-08 18:34:02 +01:00
sound ALSA: hda/realtek: Fix silent output on Gigabyte X570 Aorus Xtreme after reboot from Windows 2022-02-08 18:34:04 +01:00
tools selftests: mptcp: fix ipv6 routing setup 2022-02-05 12:38:56 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:27:15 +01:00
virt Revert "KVM: SVM: avoid infinite loop on NPF from bad address" 2022-02-01 17:27:01 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2021-05-12 23:32:39 +02:00
.cocciconfig
.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 .gitignore: ignore only top-level modules.builtin 2021-05-02 00:43:35 +09:00
.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 drm fixes for 5.15 final 2021-10-28 12:17:01 -07:00
Makefile Linux 5.15.21 2022-02-05 19:21:09 +01:00
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.