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