linux-kernelorg-stable

Go to file

André Apitzsch cc4a6c5179 media: i2c: imx214: Fix link frequency validation [ Upstream commit `acc294519f` ] The driver defines IMX214_DEFAULT_LINK_FREQ 480000000, and then IMX214_DEFAULT_PIXEL_RATE ((IMX214_DEFAULT_LINK_FREQ * 8LL) / 10), which works out as 384MPix/s. (The 8 is 4 lanes and DDR.) Parsing the PLL registers with the defined 24MHz input. We're in single PLL mode, so MIPI frequency is directly linked to pixel rate. VTCK ends up being 1200MHz, and VTPXCK and OPPXCK both are 120MHz. Section 5.3 "Frame rate calculation formula" says "Pixel rate [pixels/s] = VTPXCK [MHz] * 4", so 120 * 4 = 480MPix/s, which basically agrees with my number above. 3.1.4. MIPI global timing setting says "Output bitrate = OPPXCK * reg 0x113[7:0]", so 120MHz * 10, or 1200Mbit/s. That would be a link frequency of 600MHz due to DDR. That also matches to 480MPix/s * 10bpp / 4 lanes / 2 for DDR. Keep the previous link frequency for backward compatibility. Acked-by: Ricardo Ribalda <ribalda@chromium.org> Signed-off-by: André Apitzsch <git@apitzsch.eu> Fixes: `4361905962` ("media: imx214: Add imx214 camera sensor driver") Cc: stable@vger.kernel.org Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> [ changed dev_err() to dev_err_probe() for the final error case ] Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-09-19 16:29:55 +02:00
Documentation	x86/vmscape: Enable the mitigation	2025-09-11 17:19:15 +02:00
LICENSES	…
arch	x86/vmscape: Add old Intel CPUs to affected list	2025-09-11 17:19:16 +02:00
block	block: reject invalid operation in submit_bio_noacct	2025-08-28 16:26:10 +02:00
certs	…
crypto	…
drivers	media: i2c: imx214: Fix link frequency validation	2025-09-19 16:29:55 +02:00
fs	fs: relax assertions on failure to encode file handles	2025-09-09 18:54:21 +02:00
include	mm: introduce and use {pgd,p4d}_populate_kernel()	2025-09-19 16:29:55 +02:00
init	…
io_uring	io_uring/poll: fix POLLERR handling	2025-07-24 08:51:48 +02:00
ipc	…
kernel	cpufreq/sched: Explicitly synchronize limits_changed flag handling	2025-09-09 18:54:18 +02:00
lib	maple_tree: fix mt_destroy_walk() on root leaf node	2025-07-17 18:32:09 +02:00
mm	mm: introduce and use {pgd,p4d}_populate_kernel()	2025-09-19 16:29:55 +02:00
net	net: dsa: microchip: linearize skb for tail-tagging switches	2025-09-09 18:54:20 +02:00
rust	…
samples	samples: mei: Fix building on musl libc	2025-08-15 12:04:55 +02:00
scripts	kconfig: lxdialog: fix 'space' to (de)select options	2025-08-28 16:26:02 +02:00
security	apparmor: use the condition in AA_BUG_FMT even with debug disabled	2025-08-28 16:26:01 +02:00
sound	ALSA: hda/realtek: Fix headset mic for TongFang X6[AF]R5xxY	2025-09-09 18:54:21 +02:00
tools	tools: gpio: remove the include directory on make clean	2025-09-09 18:54:24 +02:00
usr	…
virt	…
.clang-format	…
.cocciconfig	…
.get_maintainer.ignore	…
.gitattributes	…
.gitignore	…
.mailmap	…
.rustfmt.toml	…
COPYING	…
CREDITS	…
Kbuild	…
Kconfig	…
MAINTAINERS	…
Makefile	Linux 6.1.152	2025-09-11 17:19:16 +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.