drivers: ethernet: dsa_ksz8xxx: convert to spi_dt_spec

Convert dsa_ksz8xxx driver to use `spi_dt_spec` helpers.

Signed-off-by: Bartosz Bilas <[email protected]>

Author: bbilas

drivers/ethernet/dsa_ksz8xxx.c

@@ -38,9 +38,7 @@ struct ksz8xxx_data {
 	int iface_init_count;
 	bool is_init;
 #if defined(CONFIG_DSA_SPI)
-	const struct device *spi;
-	struct spi_config spi_cfg;
-	struct spi_cs_control cs_ctrl;
+	struct spi_dt_spec spi;
 #endif
 };
 
@@ -66,7 +64,7 @@ static void dsa_ksz8xxx_write_reg(const struct ksz8xxx_data *pdev,
 	buf[1] = (reg_addr << 1) & 0xFE;
 	buf[2] = value;
 
-	spi_write(pdev->spi, &pdev->spi_cfg, &tx);
+	spi_write_dt(&pdev->spi, &tx);
 #endif
 }
 
@@ -98,7 +96,7 @@ static void dsa_ksz8xxx_read_reg(const struct ksz8xxx_data *pdev,
 	buf[1] = (reg_addr << 1) & 0xFE;
 	buf[2] = 0x0;
 
-	if (!spi_transceive(pdev->spi, &pdev->spi_cfg, &tx, &rx)) {
+	if (!spi_transceive_dt(&pdev->spi, &tx, &rx)) {
 		*value = buf[2];
 	} else {
 		LOG_DBG("Failure while reading register 0x%04x", reg_addr);
@@ -669,29 +667,19 @@ static int dsa_ksz8xxx_configure_bus(struct ksz8xxx_data *pdev)
 {
 #if defined(CONFIG_DSA_SPI)
 	/* SPI config */
-	pdev->spi_cfg.operation =
+	pdev->spi = (struct spi_dt_spec) SPI_DT_SPEC_INST_GET(0,
 #if DT_INST_PROP(0, spi_cpol)
 		SPI_MODE_CPOL |
 #endif
 #if DT_INST_PROP(0, spi_cpha)
 		SPI_MODE_CPHA |
 #endif
-		SPI_WORD_SET(8);
-
-	pdev->spi_cfg.frequency = DT_INST_PROP(0, spi_max_frequency);
-	pdev->spi_cfg.slave = DT_INST_REG_ADDR(0);
-#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
-	pdev->cs_ctrl.gpio_dev =
-		device_get_binding(DT_INST_SPI_DEV_CS_GPIOS_LABEL(0));
-	pdev->cs_ctrl.gpio_pin = DT_INST_SPI_DEV_CS_GPIOS_PIN(0);
-	pdev->cs_ctrl.gpio_dt_flags = DT_INST_SPI_DEV_CS_GPIOS_FLAGS(0);
-	pdev->cs_ctrl.delay = 0U;
-	pdev->spi_cfg.cs = &(pdev->cs_ctrl);
-#else
-	pdev->spi_cfg.cs = NULL;
-#endif
-	pdev->spi = device_get_binding(DT_INST_BUS_LABEL(0));
-	if (!pdev->spi) {
+		SPI_WORD_SET(8),
+		0U);
+
+	if (!spi_is_ready(&pdev->spi)) {
+		LOG_ERR("SPI bus %s is not ready",
+			pdev->spi.bus->name);
 		return -ENODEV;
 	}
 #endif