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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-04-24 16:39:35 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-04-28 19:11:13 +0200 |
| commit | ec3576eac11d66a388b6cba6a7cfb3b45039a712 (patch) | |
| tree | 721b03b962d00a18157f1d53f974bc732a490505 /drivers/acpi/internal.h | |
| parent | Merge tag 'acpi-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ra... (diff) | |
| download | linux-ec3576eac11d66a388b6cba6a7cfb3b45039a712.tar.xz linux-ec3576eac11d66a388b6cba6a7cfb3b45039a712.zip | |
Documentation: firmware-guide: gpio-properties: Add note to SPI CS case
Historically ACPI has no means of the GPIO polarity and thus
the SPISerialBus() resource defines it on the per-chip basis.
In order to avoid an ambiguity, the GPIO polarity is considered
being always Active High.
Add note about this to the respective documentation file.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/internal.h')
0 files changed, 0 insertions, 0 deletions