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Martin Blumenstingl 0cee6c4d35 drm/meson: fix more rounding issues with 59.94Hz modes Commit `1017560164` ("drm/meson: use unsigned long long / Hz for frequency types") attempts to resolve video playback using 59.94Hz. using YUV420 by changing the clock calculation to use Hz instead of kHz (thus yielding more precision). The basic calculation itself is correct, however the comparisions in meson_vclk_vic_supported_freq() and meson_vclk_setup() don't work anymore for 59.94Hz modes (using the freq * 1000 / 1001 logic). For example, drm/edid specifies a 593407kHz clock for 3840x2160@59.94Hz. With the mentioend commit we convert this to Hz. Then meson_vclk tries to find a matchig "params" entry (as the clock setup code currently only supports specific frequencies) by taking the venc_freq from the params and calculating the "alt frequency" (used for the 59.94Hz modes) from it, which is: (594000000Hz * 1000) / 1001 = 593406593Hz Similar calculation is applied to the phy_freq (TMDS clock), which is 10 times the pixel clock. Implement a new meson_vclk_freqs_are_matching_param() function whose purpose is to compare if the requested and calculated frequencies. They may not match exactly (for the reasons mentioned above). Allow the clocks to deviate slightly to make the 59.94Hz modes again. Fixes: `1017560164` ("drm/meson: use unsigned long long / Hz for frequency types") Reported-by: Christian Hewitt <christianshewitt@gmail.com> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20250609202751.962208-1-martin.blumenstingl@googlemail.com		2025-06-10 14:15:42 +02:00
arch	The delayed from_timer() API cleanup:	2025-06-08 11:33:00 -07:00
block	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
certs	sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3	2024-09-20 19:52:48 +03:00
crypto	EFI updates for v6.16	2025-05-30 12:42:57 -07:00
Documentation	fourteen smb3 client fixes, most smbdirect related	2025-06-08 10:20:21 -07:00
drivers	drm/meson: fix more rounding issues with 59.94Hz modes	2025-06-10 14:15:42 +02:00
fs	The delayed from_timer() API cleanup:	2025-06-08 11:33:00 -07:00
include	The delayed from_timer() API cleanup:	2025-06-08 11:33:00 -07:00
init	Rust changes for v6.16	2025-06-04 21:18:37 -07:00
io_uring	io_uring-6.16-20250606	2025-06-06 13:09:03 -07:00
ipc	- The 3 patch series "hung_task: extend blocking task stacktrace dump to	2025-05-31 19:12:53 -07:00
kernel	The delayed from_timer() API cleanup:	2025-06-08 11:33:00 -07:00
lib	13 hotfixes. 6 are cc:stable and the remainder address post-6.15 issues	2025-06-06 21:45:45 -07:00
LICENSES	LICENSES: add CC0-1.0 license text	2025-05-21 14:54:17 +02:00
mm	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
net	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
rust	Char/Misc/IIO pull request for 6.16-rc1	2025-06-06 11:50:47 -07:00
samples	- The 3 patch series "hung_task: extend blocking task stacktrace dump to	2025-05-31 19:12:53 -07:00
scripts	Kbuild updates for v6.16	2025-06-07 10:05:35 -07:00
security	require gcc-8 and binutils-2.30	2025-05-31 08:16:52 -07:00
sound	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
tools	turbostat v2025.06.08	2025-06-08 11:44:41 -07:00
usr	usr/include: openrisc: don't HDRTEST bpf_perf_event.h	2025-05-12 15:03:17 +09:00
virt	Merge branch 'kvm-lockdep-common' into HEAD	2025-05-28 06:29:17 -04:00
.clang-format	Linux 6.15-rc5	2025-05-06 16:39:25 +10:00
.clippy.toml	rust: clean Rust 1.88.0's warning about `clippy::disallowed_macros` configuration	2025-05-07 00:11:47 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.editorconfig	.editorconfig: remove trim_trailing_whitespace option	2024-06-13 16:47:52 +02:00
.get_maintainer.ignore	MAINTAINERS: Retire Ralf Baechle	2024-11-12 15:48:59 +01:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	.gitignore: ignore Python compiled bytecode	2025-04-24 10:12:46 -06:00
.mailmap	fourteen smb3 client fixes, most smbdirect related	2025-06-08 10:20:21 -07:00
.pylintrc	docs: add a .pylintrc file with sys path for docs scripts	2025-04-09 12:10:33 -06:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	Update Christoph's Email address and make it consistent	2025-05-12 23:50:31 -07:00
Kbuild	drm: ensure drm headers are self-contained and pass kernel-doc	2025-02-12 10:44:43 +02:00
Kconfig	io_uring: Rename KConfig to Kconfig	2025-02-19 14:53:27 -07:00
MAINTAINERS	fourteen smb3 client fixes, most smbdirect related	2025-06-08 10:20:21 -07:00
Makefile	Linux 6.16-rc1	2025-06-08 13:44:43 -07:00
README	README: Fix spelling	2024-03-18 03:36:32 -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 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.