From d2f0b3cb58fb55683eb0ef71a23c225194c6cda9 Mon Sep 17 00:00:00 2001 From: Jon Lin Date: Wed, 4 Jan 2023 14:44:29 +0800 Subject: [PATCH] dt-bindings: spi: spi-rockchip: Add description for csm property Change-Id: Ic429540db16a4085149c9399c3daf11e31993b7a Signed-off-by: Jon Lin --- .../devicetree/bindings/spi/spi-rockchip.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-rockchip.yaml b/Documentation/devicetree/bindings/spi/spi-rockchip.yaml index 7f987e79337c..643fc98284b5 100644 --- a/Documentation/devicetree/bindings/spi/spi-rockchip.yaml +++ b/Documentation/devicetree/bindings/spi/spi-rockchip.yaml @@ -69,6 +69,17 @@ properties: (may need to be fine tuned for high capacitance lines). If not specified 0 will be used. + csm: + default: 0 + description: + ss_n be high for half or one sclk_out cycle after every frame data + is transferred. + If not specified 0 will be used. + enum: + - 0 # keep low + - 1 # half sclk_out + - 2 # one sclk_out + pinctrl-names: minItems: 1 items: