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authorGravatar Linus Torvalds <torvalds@linux-foundation.org> 2021-05-05 12:39:29 -0700
committerGravatar Linus Torvalds <torvalds@linux-foundation.org> 2021-05-05 12:39:29 -0700
commit5d6a1b84e07607bc282ed2ed8e2f128c73697d5c (patch)
tree8d4e6f236bf3bbde71db168c6304e79a732e3fc6 /Documentation/admin-guide
parentMerge tag 'char-misc-5.13-rc1-round2' of git://git.kernel.org/pub/scm/linux/k... (diff)
parentdt-bindings: gpio: add YAML description for rockchip,gpio-bank (diff)
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Merge tag 'gpio-updates-for-v5.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski: - new driver for the Realtek Otto GPIO controller - ACPI support for gpio-mpc8xxx - edge event support for gpio-sch (+ Kconfig fixes) - Kconfig improvements in gpio-ich - fixes to older issues in gpio-mockup - ACPI quirk for ignoring EC wakeups on Dell Venue 10 Pro 5055 - improve the GPIO aggregator code by using more generic interfaces instead of reimplementing them in the driver - convert the DT bindings for gpio-74x164 to yaml - documentation improvements - a slew of other minor fixes and improvements to GPIO drivers * tag 'gpio-updates-for-v5.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (34 commits) dt-bindings: gpio: add YAML description for rockchip,gpio-bank gpio: mxs: remove useless function dt-bindings: gpio: fairchild,74hc595: Convert to json-schema gpio: it87: remove unused code gpio: 104-dio-48e: Fix coding style issues gpio: mpc8xxx: Add ACPI support gpio: ich: Switch to be dependent on LPC_ICH gpio: sch: Drop MFD_CORE selection gpio: sch: depends on LPC_SCH gpiolib: acpi: Add quirk to ignore EC wakeups on Dell Venue 10 Pro 5055 gpio: sch: Hook into ACPI GPE handler to catch GPIO edge events gpio: sch: Add edge event support gpio: aggregator: Replace custom get_arg() with a generic next_arg() lib/cmdline: Export next_arg() for being used in modules gpio: omap: Use device_get_match_data() helper gpio: Add Realtek Otto GPIO support dt-bindings: gpio: Binding for Realtek Otto GPIO docs: kernel-parameters: Add gpio_mockup_named_lines docs: kernel-parameters: Move gpio-mockup for alphabetic order lib: bitmap: provide devm_bitmap_alloc() and devm_bitmap_zalloc() ...
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/gpio/gpio-mockup.rst11
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt10
2 files changed, 12 insertions, 9 deletions
diff --git a/Documentation/admin-guide/gpio/gpio-mockup.rst b/Documentation/admin-guide/gpio/gpio-mockup.rst
index 9fa1618b3adc..493071da1738 100644
--- a/Documentation/admin-guide/gpio/gpio-mockup.rst
+++ b/Documentation/admin-guide/gpio/gpio-mockup.rst
@@ -17,17 +17,18 @@ module.
gpio_mockup_ranges
This parameter takes an argument in the form of an array of integer
- pairs. Each pair defines the base GPIO number (if any) and the number
- of lines exposed by the chip. If the base GPIO is -1, the gpiolib
- will assign it automatically.
+ pairs. Each pair defines the base GPIO number (non-negative integer)
+ and the first number after the last of this chip. If the base GPIO
+ is -1, the gpiolib will assign it automatically. while the following
+ parameter is the number of lines exposed by the chip.
- Example: gpio_mockup_ranges=-1,8,-1,16,405,4
+ Example: gpio_mockup_ranges=-1,8,-1,16,405,409
The line above creates three chips. The first one will expose 8 lines,
the second 16 and the third 4. The base GPIO for the third chip is set
to 405 while for two first chips it will be assigned automatically.
- gpio_named_lines
+ gpio_mockup_named_lines
This parameter doesn't take any arguments. It lets the driver know that
GPIO lines exposed by it should be named.
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 02470ba1fe6a..0d48fbd9107f 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1469,6 +1469,12 @@
Don't use this when you are not running on the
android emulator
+ gpio-mockup.gpio_mockup_ranges
+ [HW] Sets the ranges of gpiochip of for this device.
+ Format: <start1>,<end1>,<start2>,<end2>...
+ gpio-mockup.gpio_mockup_named_lines
+ [HW] Let the driver know GPIO lines should be named.
+
gpt [EFI] Forces disk with valid GPT signature but
invalid Protective MBR to be treated as GPT. If the
primary GPT is corrupted, it enables the backup/alternate
@@ -1492,10 +1498,6 @@
Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0.
Default: 1024
- gpio-mockup.gpio_mockup_ranges
- [HW] Sets the ranges of gpiochip of for this device.
- Format: <start1>,<end1>,<start2>,<end2>...
-
hardlockup_all_cpu_backtrace=
[KNL] Should the hard-lockup detector generate
backtraces on all cpus.