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.raynal@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>;