[PATCH v2 1/2] dt-bindings: clk: vc5: Add properties for configuring the SD/OE pin
From: Sean Anderson <hidden>
Date: 2021-06-14 15:54:56
Also in:
linux-clk
Subsystem:
common clk framework, idt versaclock 5 clock driver, open firmware and flattened device tree bindings, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Luca Ceresoli, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
These properties allow configuring the SD/OE pin as described in the datasheet. Signed-off-by: Sean Anderson <redacted> --- Changes in v2: - Rename idt,sd-active-high to idt,output-enable-active-high - Add idt,enable-shutdown .../bindings/clock/idt,versaclock5.yaml | 33 +++++++++++++++++++ 1 file changed, 33 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
index 28675b0b80f1..79d67fad5284 100644
--- a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
+++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml@@ -30,6 +30,22 @@ description: | 3 -- OUT3 4 -- OUT4 + The idt,enable-shutdown and idt,output-enable-active-high properties + correspond to the SH and SP bits of the Primary Source and Shutdown + Register, respectively. Their behavior is summarized by the following + table: + + SH SP SD/OE Output + == == ===== ======== + 0 0 Low Active + 0 0 High Inactive + 0 1 Low Inactive + 0 1 High Active + 1 0 Low Active + 1 0 High Shutdown + 1 1 Low Inactive + 1 1 High Shutdown + maintainers: - Luca Ceresoli <luca@lucaceresoli.net>
@@ -64,6 +80,23 @@ properties: maximum: 22760 description: Optional load capacitor for XTAL1 and XTAL2 + idt,enable-shutdown: + $ref: /schemas/types.yaml#/definitions/flag + description: | + Enable the shutdown function when the SD/OE pin is high. This + corresponds to setting the SH bit of the Primary Source and + Shutdown Register. If this property is set, it takes precedence + over the usual enable/disable semantics of the SD/OE pin. + + idt,output-enable-active-high: + $ref: /schemas/types.yaml#/definitions/flag + description: | + This enables output when the SD/OE pin is high, and disables + output when the SD/OE pin is low. This corresponds to setting the + SP bit of the Primary Source and Shutdown Register. If this + property is not present, then the SD/OE pin has the opposite + polarity (enabled when low, disabled when high). + patternProperties: "^OUT[1-4]$": type: object
--
2.25.1