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Filename Latest commit message Latest commit date
Haibo Chen 590abe5bec mmc: sdhci-esdhc-imx: clear the buffer_read_ready to reset standard tuning circuit 
commit 9af372dc70e9fdcbb70939dac75365e7b88580b4 upstream.

To reset standard tuning circuit completely, after clear ESDHC_MIX_CTRL_EXE_TUNE,
also need to clear bit buffer_read_ready, this operation will finally clear the
USDHC IP internal logic flag execute_tuning_with_clr_buf, make sure the following
normal data transfer will not be impacted by standard tuning logic used before.

Find this issue when do quick SD card insert/remove stress test. During standard
tuning prodedure, if remove SD card, USDHC standard tuning logic can't clear the
internal flag execute_tuning_with_clr_buf. Next time when insert SD card, all
data related commands can't get any data related interrupts, include data transfer
complete interrupt, data timeout interrupt, data CRC interrupt, data end bit interrupt.
Always trigger software timeout issue. Even reset the USDHC through bits in register
SYS_CTRL (0x2C, bit28 reset tuning, bit26 reset data, bit 25 reset command, bit 24
reset all) can't recover this. From the user's point of view, USDHC stuck, SD can't
be recognized any more.

Fixes: d9370424c9 ("mmc: sdhci-esdhc-imx: reset tuning circuit when power on mmc card")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/1634263236-6111-1-git-send-email-haibo.chen@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-11-02 19:46:12 +01:00
arch powerpc/bpf: Fix BPF_MOD when imm == 1 2021-11-02 19:46:11 +01:00
block Revert "block, bfq: honor already-setup queue merges" 2021-10-06 15:42:34 +02:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-15 09:47:29 +02:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation dt-bindings: mtd: gpmc: Fix the ECC bytes vs. OOB bytes equation 2021-09-22 12:26:43 +02:00
drivers mmc: sdhci-esdhc-imx: clear the buffer_read_ready to reset standard tuning circuit 2021-11-02 19:46:12 +01:00
fs btrfs: deal with errors when checking if a dir entry exists during log replay 2021-10-27 09:54:29 +02:00
include net/tls: Fix flipped sign in tls_err_abort() calls 2021-11-02 19:46:12 +01:00
init kbuild: add CONFIG_LD_IS_LLD 2021-06-30 08:47:44 -04:00
ipc ipc/util.c: sysvipc_find_ipc() incorrectly updates position index 2020-05-20 08:20:16 +02:00
kernel tracing: Have all levels of checks prevent recursion 2021-10-27 09:54:29 +02:00
lib Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH 2021-09-26 14:07:10 +02:00
LICENSES
mm mm, slub: fix potential memoryleak in kmem_cache_open() 2021-10-27 09:54:28 +02:00
net net/tls: Fix flipped sign in tls_err_abort() calls 2021-11-02 19:46:12 +01:00
samples samples: bpf: Fix tracex7 error raised on the missing argument 2021-09-22 12:26:30 +02:00
scripts gcc-plugins/structleak: add makefile var for disabling structleak 2021-10-27 09:54:28 +02:00
security apparmor: remove duplicate macro list_entry_is_head() 2021-09-26 14:07:06 +02:00
sound ALSA: hda: avoid write to STATESTS if controller is in reset 2021-10-27 09:54:29 +02:00
tools selftests: netfilter: remove stray bash debug line 2021-10-27 09:54:28 +02:00
usr
virt KVM: do not shrink halt_poll_ns below grow_start 2021-10-09 14:39:50 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2020-08-26 10:40:46 +02:00
Makefile Linux 5.4.156 2021-10-27 09:54:30 +02:00
README

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.