[PATCH v8 01/18] spi: dt-bindings: add spi-max-post-config-frequency-hz property
Santhosh Kumar K <[email protected]>
| Newsgroups | gmane.linux.kernel.spi.devel,gmane.linux.drivers.devicetree,gmane.linux.kernel,gmane.linux.drivers.mtd |
|---|---|
| Message-ID | <[email protected]> |
Add spi-max-post-config-frequency-hz, a generic property for SPI peripherals that operate at two distinct clock rates: a conservative rate always reachable without controller configuration, and a higher rate achievable only after controller-side configuration. When both properties are present, spi-max-frequency gives the conservative pre-configuration rate and spi-max-post-config-frequency-hz gives the higher post-configuration target. Acked-by: Conor Dooley <[email protected]> Signed-off-by: Santhosh Kumar K <[email protected]> --- .../devicetree/bindings/spi/spi-peripheral-props.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml index 880a9f624566..84976fd3ee1b 100644 --- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml +++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml @@ -45,6 +45,12 @@ properties: description: Maximum SPI clocking speed of the device in Hz. + spi-max-post-config-frequency-hz: + maxItems: 1 + description: + Maximum SPI clock frequency in Hz achievable after controller-side + configuration. + spi-cs-setup-delay-ns: description: Delay in nanoseconds to be introduced by the controller after CS is -- 2.34.1