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| author | Andy Shevchenko <[email protected]> | 2021-04-24 17:39:35 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2021-04-28 19:11:13 +0200 |
| commit | ec3576eac11d66a388b6cba6a7cfb3b45039a712 (patch) | |
| tree | 721b03b962d00a18157f1d53f974bc732a490505 /include/xen/interface/features.h | |
| parent | d8f9176b4ece17e831306072678cd9ae49688cf5 (diff) | |
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 <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'include/xen/interface/features.h')
0 files changed, 0 insertions, 0 deletions