Linux bindings have been introduced in the code (removing the U-Boot
specific ones) without documentation update. Compatible string has
changed, as well as the four GPIO properties. Reflect this by updating
the soft-spi.txt documentation.
Fixes: 102412c415 ("dm: spi: soft_spi: switch to use linux compatible string")
Signed-off-by: Miquel Raynal <miquel.ray...@free-electrons.com>
---
doc/device-tree-bindings/spi/soft-spi.txt | 24 ++++++++++++++----------
1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/doc/device-tree-bindings/spi/soft-spi.txt
b/doc/device-tree-bindings/spi/soft-spi.txt
index d09c1a5076..dfb5066473 100644
--- a/doc/device-tree-bindings/spi/soft-spi.txt
+++ b/doc/device-tree-bindings/spi/soft-spi.txt
@@ -6,11 +6,15 @@ performance will typically be much lower than a real SPI bus.
The soft SPI node requires the following properties:
-compatible: "u-boot,soft-spi"
-soft_spi_cs: GPIO number to use for SPI chip select (output)
-soft_spi_sclk: GPIO number to use for SPI clock (output)
-soft_spi_mosi: GPIO number to use for SPI MOSI line (output)
-soft_spi_miso GPIO number to use for SPI MISO line (input)
+Mandatory properties:
+compatible: "spi-gpio"
+cs-gpios: GPIOs to use for SPI chip select (output)
+gpio-sck: GPIO to use for SPI clock (output)
+And at least one of:
+gpio-mosi: GPIO to use for SPI MOSI line (output)
+gpio-miso: GPIO to use for SPI MISO line (input)
+
+Optional propertie:
spi-delay-us: Number of microseconds of delay between each CS transition
The GPIOs should be specified as required by the GPIO controller referenced.
@@ -21,11 +25,11 @@ typically holds the GPIO number.
Example:
soft-spi {
- compatible = "u-boot,soft-spi";
- cs-gpio = <&gpio 235 0>; /* Y43 */
- sclk-gpio = <&gpio 225 0>; /* Y31 */
- mosi-gpio = <&gpio 227 0>; /* Y33 */
- miso-gpio = <&gpio 224 0>; /* Y30 */
+ compatible = "spi-gpio";
+ cs-gpios = <&gpio 235 0>; /* Y43 */
+ gpio-sck = <&gpio 225 0>; /* Y31 */
+ gpio-mosi = <&gpio 227 0>; /* Y33 */
+ gpio-miso = <&gpio 224 0>; /* Y30 */
spi-delay-us = <1>;
#address-cells = <1>;
#size-cells = <0>;
--
2.11.0
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