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A mirror of the official Linux kernel repository just in case
26470a2e87
Merge series from Jonas Rebmann <jre@pengutronix.de>: The i.MX SPI controller supports inserting a configurable delay between subsequent words, which is needed for some slower devices that couldn't keep up otherwise. This patch series introduces support for the word delay parameters for i.MX51 onwards. The SPI clock (CSRC=0) was chosen as the clock source over the also available 32.768 KHz Low-Frequency Reference Clock (CSRC=1). The sample period control bits (SAMPLE_PERIOD) are set to the selected word delay converted to SPI clock cycles. A deviation from the requested number of wait cycles and the actual word delay was observed via both software timings and oscilloscope measurements and accounted for. The Chip Select Delay Control bits in the Sample Period Control Register remain zero. Behaviour on i.MX35 and earlier, where the CSPI interface is used, remains unchanged. |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
io_uring | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
rust | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.editorconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
.rustfmt.toml | ||
COPYING | ||
CREDITS | ||
Kbuild | ||
Kconfig | ||
MAINTAINERS | ||
Makefile | ||
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 reStructuredText 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.