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Andy Yan ec648d8c2d drm/rockchip: vop2: Use OVL_LAYER_SEL configuration instead of use win_mask calculate used layers 
commit d3fe9aa495 upstream.

When there are multiple Video Ports, and only one of them is working
(for example, VP1 is working while VP0 is not), in this case, the
win_mask of VP0 is 0. However, we have already set the port mux for VP0
according to vp0->nlayers, and at the same time, in the OVL_LAYER_SEL
register, there are windows will also be assigned to layers which will
map to the inactive VPs. In this situation, vp0->win_mask is zero as it
now working, it is more reliable to calculate the used layers based on
the configuration of the OVL_LAYER_SEL register.

Note: as the configuration of OVL_LAYER_SEL is take effect when the
vsync is come, so we use the value backup in vop2->old_layer_sel instead
of read OVL_LAYER_SEL directly.

Fixes: 3e89a8c683 ("drm/rockchip: vop2: Fix the update of LAYER/PORT select registers when there are multi display output on rk3588/rk3568")
Cc: stable@vger.kernel.org
Reported-by: Diederik de Haas <diederik@cknow-tech.com>
Closes: https://bugs.kde.org/show_bug.cgi?id=511274
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Dang Huynh <dang.huynh@mainlining.org>
Tested-by: Diederik de Haas <diederik@cknow-tech.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20251112085024.2480111-1-andyshrk@163.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-01-08 10:17:17 +01:00
arch LoongArch: BPF: Adjust the jump offset of tail calls 2026-01-08 10:17:13 +01:00
block block: Clear BLK_ZONE_WPLUG_PLUGGED when aborting plugged BIOs 2026-01-08 10:16:58 +01:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: seqiv - Do not use req->iv after crypto_aead_encrypt 2026-01-08 10:16:43 +01:00
Documentation dt-bindings: PCI: qcom,pcie-sm8550: Add missing required power-domains and resets 2026-01-02 12:57:27 +01:00
drivers drm/rockchip: vop2: Use OVL_LAYER_SEL configuration instead of use win_mask calculate used layers 2026-01-08 10:17:17 +01:00
fs nfsd: Drop the client reference in client_states_open() 2026-01-08 10:17:13 +01:00
include drm/buddy: Separate clear and dirty free block trees 2026-01-08 10:17:16 +01:00
init printk changes for 6.18 2025-10-04 11:13:11 -07:00
io_uring io_uring/rsrc: fix lost entries after cloned range 2026-01-02 12:57:30 +01:00
ipc namespace-6.18-rc1 2025-09-29 11:20:29 -07:00
kernel kernel/kexec: fix IMA when allocation happens in CMA area 2026-01-08 10:17:10 +01:00
lib idr: fix idr_alloc() returning an ID out of range 2026-01-08 10:17:10 +01:00
LICENSES LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2 2025-07-24 11:15:39 +02:00
mm mm/page_owner: fix memory leak in page_owner_stack_fops->release() 2026-01-08 10:17:10 +01:00
net net: nfc: fix deadlock between nfc_unregister_device and rfkill_fop_write 2026-01-08 10:17:14 +01:00
rust rust: maple_tree: rcu_read_lock() in destructor to silence lockdep 2026-01-08 10:17:11 +01:00
samples samples/ftrace: Adjust LoongArch register restore order in direct calls 2026-01-08 10:17:11 +01:00
scripts mcb: Add missing modpost build support 2026-01-08 10:16:47 +01:00
security kernel/kexec: change the prototype of kimage_map_segment() 2026-01-08 10:17:10 +01:00
sound ASoC: qcom: qdsp6: q6asm-dai: set 10 ms period and buffer alignment. 2026-01-08 10:16:54 +01:00
tools selftests/mm: fix thread state check in uffd-unit-tests 2026-01-08 10:17:11 +01:00
usr gen_init_cpio: Ignore fsync() returning EINVAL on pipes 2025-10-07 09:53:05 -07:00
virt KVM: Fix last_boosted_vcpu index assignment bug 2026-01-02 12:57:21 +01:00
.clang-format memblock: drop for_each_free_mem_pfn_range_in_zone_from() 2025-09-14 08:49:03 +03:00
.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: remove Alyssa Rosenzweig 2025-09-18 21:17:31 +02:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore .gitignore: ignore compile_commands.json globally 2025-08-12 15:53:55 -07:00
.mailmap 8 hotfixes. 4 are cc:stable, 7 are against mm/. 2025-11-26 12:38:05 -08:00
.pylintrc tools: docs: parse-headers.py: move it from sphinx dir 2025-08-29 15:54:42 -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 MAINTAINERS: mark ISDN subsystem as orphan 2025-10-27 17:49:45 -07:00
Kbuild sched: Make migrate_{en,dis}able() inline 2025-09-25 09:57:16 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS soc: fixes for 6.18, part 4 2025-11-28 09:57:31 -08:00
Makefile Linux 6.18.3 2026-01-02 12:57:31 +01:00
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.