spi: atmel-quadspi: Update to current device naming terminology

For v6.9 the spi subsystem changed the terminology to host and target
devices, see commit 99769a5 ("spi: Update the "master/slave"
terminology in documentation") for reference.  Support for SAMA7G5 was
forward ported recently from an old vendor branch before that
terminology change, so naming for the new struct member is adapted to
follow the current scheme.

Signed-off-by: Alexander Dahl <ada@thorsis.com>
Link: https://patch.msgid.link/20250109094843.36014-1-ada@thorsis.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: LeSpocky

drivers/spi/atmel-quadspi.c

@@ -280,7 +280,7 @@ struct atmel_qspi {
 	u32			irq_mask;
 	u32			mr;
 	u32			scr;
-	u32			slave_max_speed_hz;
+	u32			target_max_speed_hz;
 	struct completion	cmd_completion;
 	struct completion	dma_completion;
 	dma_addr_t		mmap_phys_base;
@@ -1041,7 +1041,7 @@ static int atmel_qspi_set_pad_calibration(struct atmel_qspi *aq)
 
 	/* Refresh analogic blocks every 1 ms.*/
 	atmel_qspi_write(FIELD_PREP(QSPI_REFRESH_DELAY_COUNTER,
-				    aq->slave_max_speed_hz / 1000),
+				    aq->target_max_speed_hz / 1000),
 			 aq, QSPI_REFRESH);
 
 	return ret;
@@ -1064,12 +1064,12 @@ static int atmel_qspi_set_gclk(struct atmel_qspi *aq)
 			return ret;
 	}
 
-	if (aq->slave_max_speed_hz > QSPI_DLLCFG_THRESHOLD_FREQ)
+	if (aq->target_max_speed_hz > QSPI_DLLCFG_THRESHOLD_FREQ)
 		atmel_qspi_write(QSPI_DLLCFG_RANGE, aq, QSPI_DLLCFG);
 	else
 		atmel_qspi_write(0, aq, QSPI_DLLCFG);
 
-	ret = clk_set_rate(aq->gclk, aq->slave_max_speed_hz);
+	ret = clk_set_rate(aq->gclk, aq->target_max_speed_hz);
 	if (ret) {
 		dev_err(&aq->pdev->dev, "Failed to set generic clock rate.\n");
 		return ret;
@@ -1131,8 +1131,8 @@ static int atmel_qspi_sama7g5_setup(struct spi_device *spi)
 {
 	struct atmel_qspi *aq = spi_controller_get_devdata(spi->controller);
 
-	/* The controller can communicate with a single slave. */
-	aq->slave_max_speed_hz = spi->max_speed_hz;
+	/* The controller can communicate with a single peripheral device (target). */
+	aq->target_max_speed_hz = spi->max_speed_hz;
 
 	return atmel_qspi_sama7g5_init(aq);
 }