- gpio_direction_output(plat->sclk.gpio, slave->mode & SPI_CPOL);
- gpio_direction_output(plat->mosi.gpio, 1);
- gpio_direction_input(plat->miso.gpio);
- gpio_direction_output(plat->cs.gpio, !(slave->mode & SPI_CS_HIGH));
+ 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))
+ return -EINVAL;
+
+ ret = gpio_request_by_name(dev, "gpio-mosi", 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)
+ plat->flags |= SPI_MASTER_NO_RX;
+
+ if ((plat->flags & (SPI_MASTER_NO_RX | SPI_MASTER_NO_TX)) ==
+ (SPI_MASTER_NO_RX | SPI_MASTER_NO_TX))
+ return -EINVAL;