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Martin Blumenstingl 381803dc84 pinctrl: meson: define the pull up/down resistor value as 60 kOhm
[ Upstream commit e56088a13708757da68ad035269d69b93ac8c389 ]

The public datasheets of the following Amlogic SoCs describe a typical
resistor value for the built-in pull up/down resistor:
- Meson8/8b/8m2: not documented
- GXBB (S905): 60 kOhm
- GXL (S905X): 60 kOhm
- GXM (S912): 60 kOhm
- G12B (S922X): 60 kOhm
- SM1 (S905D3): 60 kOhm

The public G12B and SM1 datasheets additionally state min and max
values:
- min value: 50 kOhm for both, pull-up and pull-down
- max value for the pull-up: 70 kOhm
- max value for the pull-down: 130 kOhm

Use 60 kOhm in the pinctrl-meson driver as well so it's shown in the
debugfs output. It may not be accurate for Meson8/8b/8m2 but in reality
60 kOhm is closer to the actual value than 1 Ohm.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/20250329190132.855196-1-martin.blumenstingl@googlemail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:34 +02:00
arch MIPS: pm-cps: Use per-CPU variables as per-CPU, not per-core 2025-06-04 14:32:33 +02:00
block
certs
crypto crypto: null - Use spin lock instead of mutex 2025-05-02 07:39:27 +02:00
Documentation x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2 2025-06-04 14:32:32 +02:00
drivers pinctrl: meson: define the pull up/down resistor value as 60 kOhm 2025-06-04 14:32:34 +02:00
fs orangefs: Do not truncate file size 2025-06-04 14:32:32 +02:00
include drm/atomic: clarify the rules around drm_atomic_state->allow_modeset 2025-06-04 14:32:34 +02:00
init sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP 2025-05-02 07:39:28 +02:00
ipc
kernel rcu: handle quiescent states for PREEMPT_RCU=n, PREEMPT_COUNT=y 2025-06-04 14:32:34 +02:00
lib dql: Fix dql->limit value when reset. 2025-06-04 14:32:30 +02:00
LICENSES
mm
net ip: fib_rules: Fetch net from fib_rule in fib[46]_rule_configure(). 2025-06-04 14:32:34 +02:00
samples
scripts kbuild: fix argument parsing in scripts/config 2025-06-04 14:32:31 +02:00
security smack: recognize ipv4 CIPSO w/o categories 2025-06-04 14:32:33 +02:00
sound ASoC: ops: Enforce platform maximum on initial value 2025-06-04 14:32:33 +02:00
tools bpftool: Fix readlink usage in get_fd_type 2025-06-04 14:32:34 +02:00
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Makefile Linux 5.4.293 2025-05-02 07:39:30 +02:00
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 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.