spi: soft_spi: Support the recommended soft spi properties

According to Documentation/devicetree/bindings/spi/spi-gpio.yaml
from Linux, the recommended spio-gpio properties are:

sck-gpios, miso-gpios and mosi-gpios.

gpio-sck, gpio-mosi and gpio-miso are considered deprecated.

Currently, U-Boot only supports the deprecated properties.

Allow the soft_spi driver to support both the new and old properties.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Fabio Estevam 2023-05-18 19:22:40 -03:00 committed by Jagan Teki
parent 486f4d5a53
commit 2e9fe73a88

View File

@ -248,17 +248,30 @@ static int soft_spi_probe(struct udevice *dev)
cs_flags = (slave && slave->mode & SPI_CS_HIGH) ? 0 : GPIOD_ACTIVE_LOW;
clk_flags = (slave && slave->mode & SPI_CPOL) ? GPIOD_ACTIVE_LOW : 0;
if (gpio_request_by_name(dev, "cs-gpios", 0, &plat->cs,
GPIOD_IS_OUT | cs_flags) ||
gpio_request_by_name(dev, "gpio-sck", 0, &plat->sclk,
GPIOD_IS_OUT | clk_flags))
ret = gpio_request_by_name(dev, "cs-gpios", 0, &plat->cs,
GPIOD_IS_OUT | cs_flags);
if (ret)
return -EINVAL;
ret = gpio_request_by_name(dev, "gpio-sck", 0, &plat->sclk,
GPIOD_IS_OUT | clk_flags);
if (ret)
ret = gpio_request_by_name(dev, "sck-gpios", 0, &plat->sclk,
GPIOD_IS_OUT | clk_flags);
if (ret)
return -EINVAL;
ret = gpio_request_by_name(dev, "gpio-mosi", 0, &plat->mosi,
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
if (ret)
ret = gpio_request_by_name(dev, "mosi-gpios", 0, &plat->mosi,
GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
if (ret)
plat->flags |= SPI_MASTER_NO_TX;
ret = gpio_request_by_name(dev, "gpio-miso", 0, &plat->miso,
GPIOD_IS_IN);
if (ret)
ret = gpio_request_by_name(dev, "gpio-miso", 0, &plat->miso,
GPIOD_IS_IN);
if (ret)