spi_nxp_lpspi: Remove dev pointer from data struct

The dev pointer in the data struct is not being used, so remove it.

Signed-off-by: Declan Snyder <declan.snyder@nxp.com>

Author: decsny

drivers/spi/spi_nxp_lpspi/spi_nxp_lpspi.c

@@ -215,7 +215,7 @@ static inline void lpspi_handle_tx_irq(const struct device *dev)
 		lpspi_data->fill_len -= this_buf_words_sent;
 	}
 
-	lpspi_next_tx_fill(data->dev);
+	lpspi_next_tx_fill(dev);
 }
 
 static inline void lpspi_end_xfer(const struct device *dev)

drivers/spi/spi_nxp_lpspi/spi_nxp_lpspi_common.c

@@ -204,8 +204,6 @@ int spi_nxp_init_common(const struct device *dev)
 
 	DEVICE_MMIO_NAMED_MAP(dev, reg_base, K_MEM_CACHE_NONE | K_MEM_DIRECT_MAP);
 
-	data->dev = dev;
-
 	if (!device_is_ready(config->clock_dev)) {
 		LOG_ERR("clock control device not ready");
 		return -ENODEV;

drivers/spi/spi_nxp_lpspi/spi_nxp_lpspi_priv.h

@@ -47,7 +47,6 @@ struct lpspi_config {
 
 struct lpspi_data {
 	DEVICE_MMIO_NAMED_RAM(reg_base);
-	const struct device *dev;
 	struct spi_context ctx;
 	void *driver_data;
 	size_t transfer_len;