-
- gpio_request(plat->cs.gpio, "soft_spi_cs");
- gpio_request(plat->sclk.gpio, "soft_spi_sclk");
- gpio_request(plat->mosi.gpio, "soft_spi_mosi");
- gpio_request(plat->miso.gpio, "soft_spi_miso");
-
- 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));
+ int cs_flags, clk_flags;
+
+ cs_flags = (slave->mode & SPI_CS_HIGH) ? 0 : GPIOD_ACTIVE_LOW;
+ clk_flags = (slave->mode & SPI_CPOL) ? GPIOD_ACTIVE_LOW : 0;
+ if (gpio_request_by_name(dev, "cs-gpio", 0, &plat->cs,
+ GPIOD_IS_OUT | cs_flags) ||
+ gpio_request_by_name(dev, "sclk-gpio", 0, &plat->sclk,
+ GPIOD_IS_OUT | clk_flags) ||
+ gpio_request_by_name(dev, "mosi-gpio", 0, &plat->mosi,
+ GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE) ||
+ gpio_request_by_name(dev, "miso-gpio", 0, &plat->miso,
+ GPIOD_IS_IN))
+ return -EINVAL;