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author | Mark Brown <broonie@kernel.org> | 2021-05-18 17:24:52 +0100 |
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committer | Mark Brown <broonie@kernel.org> | 2021-05-18 17:24:52 +0100 |
commit | c37fe6aff89cb0d842993fe2f69e48bf3ebe0ab0 (patch) | |
tree | 2a322c48218f7006bab789b7bf16ec58b129a096 /Documentation/admin-guide/gpio/gpio-mockup.rst | |
parent | d7aed20d446d8c87f5e13adf73281056b0064a45 (diff) | |
parent | d07f6ca923ea0927a1024dfccafc5b53b61cfecc (diff) |
Merge tag 'v5.13-rc2' into spi-5.13
Linux 5.13-rc2
Diffstat (limited to 'Documentation/admin-guide/gpio/gpio-mockup.rst')
-rw-r--r-- | Documentation/admin-guide/gpio/gpio-mockup.rst | 11 |
1 files changed, 6 insertions, 5 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. |