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Filename Latest commit message Latest commit date
Guenter Roeck 03ff8a4f9d spi: mediatek: Fix fifo transfer
commit 0d5c3954b35eddff0da0436c31e8d721eceb7dc2 upstream.

Commit 3a70dd2d0503 ("spi: mediatek: fix fifo rx mode") claims that
fifo RX mode was never handled, and adds the presumably missing code
to the FIFO transfer function. However, the claim that receive data
was not handled is incorrect. It was handled as part of interrupt
handling after the transfer was complete. The code added with the above
mentioned commit reads data from the receive FIFO before the transfer
is started, which is wrong. This results in an actual transfer error
on a Hayato Chromebook.

Remove the code trying to handle receive data before the transfer is
started to fix the problem.

Fixes: 3a70dd2d0503 ("spi: mediatek: fix fifo rx mode")
Cc: Peter Hess <peter.hess@ph-home.de>
Cc: Frank Wunderlich <frank-w@public-files.de>
Cc: Tzung-Bi Shih <tzungbi@google.com>
Cc: Hsin-Yi Wang <hsinyi@google.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Hsin-Yi Wang <hsinyi@google.com>
Tested-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20210802030023.1748777-1-linux@roeck-us.net
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-08-08 09:04:09 +02:00
arch powerpc/pseries: Fix regression while building external modules 2021-08-04 12:27:40 +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 userfaultfd: do not untag user pointers 2021-07-28 13:31:01 +02:00
drivers spi: mediatek: Fix fifo transfer 2021-08-08 09:04:09 +02:00
fs btrfs: fix lost inode on log replay after mix of fsync, rename and inode eviction 2021-08-08 09:04:07 +02:00
include ACPI: fix NULL pointer dereference 2021-08-08 09:04:08 +02:00
init kbuild: add CONFIG_LD_IS_LLD 2021-06-30 08:47:44 -04:00
ipc
kernel bpf: Fix leakage under speculation on mispredicted branches 2021-08-08 09:04:08 +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 Revert "Bluetooth: Shutdown controller after workqueues are flushed or cancelled" 2021-08-08 09:04:08 +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: tlv320aic31xx: fix reversed bclk/wclk master bits 2021-08-08 09:04:07 +02:00
tools bpf, selftests: Adjust few selftest outcomes wrt unreachable code 2021-08-08 09:04:09 +02:00
usr
virt KVM: add missing compat KVM_CLEAR_DIRTY_LOG 2021-08-04 12:27:37 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
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.gitignore
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COPYING
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Makefile Linux 5.4.138 2021-08-04 12:27:40 +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.