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dt-bindings: display: bridge: icn6211: Add support for external REFCLK

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The ICN6211 is capable of deriving its internal PLL clock from either
MIPI DSI HS clock, external REFCLK clock, or even internal oscillator.
Currently supported is only the first option. Document support for
external REFCLK clock input in addition to that.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Robert Foss <robert.foss@linaro.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: dri-devel@lists.freedesktop.org
Cc: devicetree@vger.kernel.org
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220801131747.183041-1-marex@denx.de
This commit is contained in:
Marek Vasut 2022-08-01 15:17:46 +02:00 committed by Linus Walleij
parent 4d054ca9ad
commit a2d6447a4a
1 changed files with 9 additions and 0 deletions
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9
Documentation/devicetree/bindings/display/bridge/chipone,icn6211.yaml
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@ -24,6 +24,15 @@ properties:
maxItems: 1
description: virtual channel number of a DSI peripheral
clock-names:
const: refclk
clocks:
maxItems: 1
description: |
Optional external clock connected to REF_CLK input.
The clock rate must be in 10..154 MHz range.
enable-gpios:
description: Bridge EN pin, chip is reset when EN is low.