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Stephen Boyd 5abed58a8b phy: qcom: qmp-combo: Fix VCO div offset on v3
Commit ec17373aeb ("phy: qcom: qmp-combo: extract common function to
setup clocks") changed the offset that is used to write to
DP_PHY_VCO_DIV from QSERDES_V3_DP_PHY_VCO_DIV to
QSERDES_V4_DP_PHY_VCO_DIV. Unfortunately, this offset is different
between v3 and v4 phys:

 #define QSERDES_V3_DP_PHY_VCO_DIV                 0x064
 #define QSERDES_V4_DP_PHY_VCO_DIV                 0x070

meaning that we write the wrong register on v3 phys now. Add another
generic register to 'regs' and use it here instead of a version specific
define to fix this.

This was discovered after Abhinav looked over register dumps with me
from sc7180 Trogdor devices that started failing to light up the
external display with v6.6 based kernels. It turns out that some
monitors are very specific about their link clk frequency and if the
default power on reset value is still there the monitor will show a
blank screen or a garbled display. Other monitors are perfectly happy to
get a bad clock signal.

Cc: Douglas Anderson <dianders@chromium.org>
Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Fixes: ec17373aeb ("phy: qcom: qmp-combo: extract common function to setup clocks")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240404234345.1446300-1-swboyd@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2024-04-06 14:33:18 +05:30
Documentation A set of x86 fixes: 2024-03-24 11:13:56 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch EFI fixes for v6.9 #2 2024-03-24 13:54:06 -07:00
block vfs-6.9-rc1.fixes 2024-03-18 09:15:50 -07:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto RISC-V Patches for the 6.9 Merge Window 2024-03-22 10:41:13 -07:00
drivers phy: qcom: qmp-combo: Fix VCO div offset on v3 2024-04-06 14:33:18 +05:30
fs A patch to minimize blockage when processing very large batches of 2024-03-22 11:15:45 -07:00
include powerpc updates for 6.9 #2 2024-03-23 09:21:26 -07:00
init RISC-V Patches for the 6.9 Merge Window 2024-03-22 10:41:13 -07:00
io_uring io_uring/sqpoll: early exit thread if task_context wasn't allocated 2024-03-18 20:22:42 -06:00
ipc sysctl changes for v6.9-rc1 2024-03-18 14:59:13 -07:00
kernel dma-mapping fixes for Linux 6.9 2024-03-24 10:45:31 -07:00
lib hardening fixes for v6.9-rc1 2024-03-23 08:43:21 -07:00
mm RISC-V Patches for the 6.9 Merge Window 2024-03-22 10:41:13 -07:00
net Including fixes from CAN, netfilter, wireguard and IPsec. 2024-03-21 14:50:39 -07:00
rust Kbuild updates for v6.9 2024-03-21 14:41:00 -07:00
samples Tracing updates for 6.9: 2024-03-18 15:11:44 -07:00
scripts LoongArch changes for v6.9 2024-03-22 10:22:45 -07:00
security - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min 2024-03-14 18:03:09 -07:00
sound sound fixes #2 for 6.9-rc2 2024-03-22 09:44:19 -07:00
tools RISC-V Patches for the 6.9 Merge Window 2024-03-22 10:41:13 -07:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM Xen and pfncache changes for 6.9: 2024-03-11 10:42:55 -04:00
.clang-format clang-format: Update with v6.7-rc4's `for_each` macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: create a list of all built DTB files 2024-02-19 18:20:39 +09:00
.mailmap Char/Misc and other driver subsystem updates for 6.9-rc1 2024-03-21 13:21:31 -07:00
.rustfmt.toml rust: add `.rustfmt.toml` 2022-09-28 09:02:20 +02:00
COPYING
CREDITS Not a ton of stuff happening in the clk framework in this pull request. We got 2024-03-15 11:48:01 -07:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig
MAINTAINERS RISC-V Patches for the 6.9 Merge Window 2024-03-22 10:41:13 -07:00
Makefile Linux 6.9-rc1 2024-03-24 14:10:05 -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.