forge/linux-uconsole: Linux kernel for uConsole

Linux kernel for uConsole

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Thommy Jakobsson 8be0704486 spi/zynqmp: remove entry that causes a cs glitch [ Upstream commit `5dd8304981` ] In the public interface for chipselect, there is always an entry commented as "Dummy generic FIFO entry" pushed down to the fifo right after the activate/deactivate command. The dummy entry is 0x0, irregardless if the intention was to activate or deactive the cs. This causes the cs line to glitch rather than beeing activated in the case when there was an activate command. This has been observed on oscilloscope, and have caused problems for at least one specific flash device type connected to the qspi port. After the change the glitch is gone and cs goes active when intended. The reason why this worked before (except for the glitch) was because when sending the actual data, the CS bits are once again set. Since most flashes uses mode 0, there is always a half clk period anyway for cs to clk active setup time. If someone would rely on timing from a chip_select call to a transfer_one, it would fail though. It is unknown why the dummy entry was there in the first place, git log seems to be of no help in this case. The reference manual gives no indication of the necessity of this. In fact the lower 8 bits are a setup (or hold in case of deactivate) time expressed in cycles. So this should not be needed to fulfill any setup/hold timings. Signed-off-by: Thommy Jakobsson <thommyj@gmail.com> Reviewed-by: Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com> Link: https://lore.kernel.org/r/20200224162643.29102-1-thommyj@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-03-25 08:06:06 +01:00
arch	ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes	2020-03-25 08:06:06 +01:00
block	block: fix 32 bit overflow in __blkdev_issue_discard()	2020-02-01 09:37:12 +00:00
certs	export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()	2018-08-22 23:21:44 +09:00
crypto	crypto: api - Fix race condition in crypto_spawn_alg	2020-02-11 04:34:05 -08:00
Documentation	driver core: Remove device link creation limitation	2020-03-20 11:55:58 +01:00
drivers	spi/zynqmp: remove entry that causes a cs glitch	2020-03-25 08:06:06 +01:00
firmware	Fix built-in early-load Intel microcode alignment	2020-01-23 08:21:29 +01:00
fs	jbd2: fix data races at struct journal_head	2020-03-20 11:55:56 +01:00
include	driver core: Remove device link creation limitation	2020-03-20 11:55:58 +01:00
init	fork: fix some -Wmissing-prototypes warnings	2019-12-05 09:21:04 +01:00
ipc	Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()"	2020-02-28 16:38:49 +01:00
kernel	signal: avoid double atomic counter increments for user accounting	2020-03-20 11:55:53 +01:00
lib	lib/stackdepot.c: fix global out-of-bounds in stack_slabs	2020-02-28 16:38:55 +01:00
LICENSES	LICENSES: Remove CC-BY-SA-4.0 license text	2018-10-18 11:28:50 +02:00
mm	mm: slub: add missing TID bump in kmem_cache_alloc_bulk()	2020-03-20 11:55:59 +01:00
net	ipv4: ensure rcu_read_lock() in cipso_v4_error()	2020-03-20 11:56:00 +01:00
samples	samples/bpf: Don't try to remove user's homedir on clean	2020-02-11 04:34:05 -08:00
scripts	kbuild: use -S instead of -E for precise cc-option test in Kconfig	2020-02-24 08:34:50 +01:00
security	selinux: ensure we cleanup the internal AVC counters on error in avc_update()	2020-02-24 08:34:43 +01:00
sound	ASoC: dapm: Correct DAPM handling of active widgets during shutdown	2020-03-11 14:15:09 +01:00
tools	perf bench futex-wake: Restore thread count default to online CPU count	2020-03-18 07:14:24 +01:00
usr	kbuild: clean compressed initramfs image	2019-10-07 18:57:16 +02:00
virt	KVM: Check for a bad hva before dropping into the ghc slow path	2020-03-05 16:42:21 +01:00
.clang-format	clang-format: Set IndentWrappedFunctionNames false	2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes	.gitattributes: set git diff driver for C source code files	2016-10-07 18:46:30 -07:00
.gitignore	Kbuild updates for v4.17 (2nd)	2018-04-15 17:21:30 -07:00
.mailmap	libnvdimm-for-4.19_misc	2018-08-25 18:13:10 -07:00
COPYING	COPYING: use the new text with points to the license files	2018-03-23 12:41:45 -06:00
CREDITS	9p: remove Ron Minnich from MAINTAINERS	2018-08-17 16:20:26 -07:00
Kbuild	Kbuild updates for v4.15	2017-11-17 17:45:29 -08:00
Kconfig	kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt	2018-08-02 08:06:55 +09:00
MAINTAINERS	MAINTAINERS: Update drm/i915 bug filing URL	2020-02-28 16:38:49 +01:00
Makefile	Linux 4.19.112	2020-03-20 11:56:00 +01:00
README	Docs: Added a pointer to the formatted docs to README	2018-03-21 09:02:53 -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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.