SPI pins of the SPICC Controller in Meson-GX needs to be controlled by
pin biais when idle. Therefore define three pinctrl names:
- default: SPI pins are controlled by spi function.
- idle-high: SCLK pin is pulled-up, but MOSI/MISO are still controlled
by spi function.
- idle-low: SCLK pin is pulled-down, but MOSI/MISO are still controlled
by spi function.
Reported-by: Da Xue <da@libre.computer>
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Signed-off-by: Amjad Ouled-Ameur <aouledameur@xxxxxxxxxxxx>
---
.../devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
index 0c10f7678178..53013e27f507 100644
--- a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
+++ b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
@@ -43,6 +43,14 @@ properties:
minItems: 1
maxItems: 2
+ pinctrl-0:
+ minItems: 1
+
+ pinctrl-1:
+ maxItems: 1
+
+ pinctrl-names: true
+
if:
properties:
compatible:
@@ -69,6 +77,13 @@ else:
items:
- const: core
+ pinctrl-names:
+ minItems: 1
+ items:
+ - const: default
+ - const: idle-high
+ - const: idle-low
+
required:
- compatible
- reg
--
b4 0.10.1
