spi: Use inclusive language

Replace "master" by "[host] controller" in the SPI core code and comments.
All the similar to the "slave" by "target [device]" changes.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250313140340.380359-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: andy-shev

drivers/spi/spi.c

@@ -43,7 +43,7 @@ EXPORT_TRACEPOINT_SYMBOL(spi_transfer_stop);
 
 #include "internals.h"
 
-static DEFINE_IDR(spi_master_idr);
+static DEFINE_IDR(spi_controller_idr);
 
 static void spidev_release(struct device *dev)
 {
@@ -306,7 +306,7 @@ static const struct attribute_group spi_controller_statistics_group = {
 	.attrs  = spi_controller_statistics_attrs,
 };
 
-static const struct attribute_group *spi_master_groups[] = {
+static const struct attribute_group *spi_controller_groups[] = {
 	&spi_controller_statistics_group,
 	NULL,
 };
@@ -1107,7 +1107,7 @@ static void spi_set_cs(struct spi_device *spi, bool enable, bool force)
 					spi_toggle_csgpiod(spi, idx, enable, activate);
 			}
 		}
-		/* Some SPI masters need both GPIO CS & slave_select */
+		/* Some SPI controllers need both GPIO CS & ->set_cs() */
 		if ((spi->controller->flags & SPI_CONTROLLER_GPIO_SS) &&
 		    spi->controller->set_cs)
 			spi->controller->set_cs(spi, !enable);
@@ -2532,7 +2532,7 @@ of_register_spi_device(struct spi_controller *ctlr, struct device_node *nc)
  * @ctlr:	Pointer to spi_controller device
  *
  * Registers an spi_device for each child node of controller node which
- * represents a valid SPI slave.
+ * represents a valid SPI target device.
  */
 static void of_register_spi_devices(struct spi_controller *ctlr)
 {
@@ -2817,7 +2817,7 @@ struct spi_device *acpi_spi_device_alloc(struct spi_controller *ctlr,
 	if (!lookup.max_speed_hz &&
 	    ACPI_SUCCESS(acpi_get_parent(adev->handle, &parent_handle)) &&
 	    device_match_acpi_handle(lookup.ctlr->dev.parent, parent_handle)) {
-		/* Apple does not use _CRS but nested devices for SPI slaves */
+		/* Apple does not use _CRS but nested devices for SPI target devices */
 		acpi_spi_parse_apple_properties(adev, &lookup);
 	}
 
@@ -2909,7 +2909,7 @@ static void acpi_register_spi_devices(struct spi_controller *ctlr)
 				     SPI_ACPI_ENUMERATE_MAX_DEPTH,
 				     acpi_spi_add_device, NULL, ctlr, NULL);
 	if (ACPI_FAILURE(status))
-		dev_warn(&ctlr->dev, "failed to enumerate SPI slaves\n");
+		dev_warn(&ctlr->dev, "failed to enumerate SPI target devices\n");
 }
 #else
 static inline void acpi_register_spi_devices(struct spi_controller *ctlr) {}
@@ -2923,16 +2923,15 @@ static void spi_controller_release(struct device *dev)
 	kfree(ctlr);
 }
 
-static const struct class spi_master_class = {
+static const struct class spi_controller_class = {
 	.name		= "spi_master",
 	.dev_release	= spi_controller_release,
-	.dev_groups	= spi_master_groups,
+	.dev_groups	= spi_controller_groups,
 };
 
 #ifdef CONFIG_SPI_SLAVE
 /**
- * spi_target_abort - abort the ongoing transfer request on an SPI slave
- *		     controller
+ * spi_target_abort - abort the ongoing transfer request on an SPI target controller
  * @spi: device used for the current transfer
  */
 int spi_target_abort(struct spi_device *spi)
@@ -2973,13 +2972,13 @@ static ssize_t slave_store(struct device *dev, struct device_attribute *attr,
 
 	child = device_find_any_child(&ctlr->dev);
 	if (child) {
-		/* Remove registered slave */
+		/* Remove registered target device */
 		device_unregister(child);
 		put_device(child);
 	}
 
 	if (strcmp(name, "(null)")) {
-		/* Register new slave */
+		/* Register new target device */
 		spi = spi_alloc_device(ctlr);
 		if (!spi)
 			return -ENOMEM;
@@ -2998,40 +2997,40 @@ static ssize_t slave_store(struct device *dev, struct device_attribute *attr,
 
 static DEVICE_ATTR_RW(slave);
 
-static struct attribute *spi_slave_attrs[] = {
+static struct attribute *spi_target_attrs[] = {
 	&dev_attr_slave.attr,
 	NULL,
 };
 
-static const struct attribute_group spi_slave_group = {
-	.attrs = spi_slave_attrs,
+static const struct attribute_group spi_target_group = {
+	.attrs = spi_target_attrs,
 };
 
-static const struct attribute_group *spi_slave_groups[] = {
+static const struct attribute_group *spi_target_groups[] = {
 	&spi_controller_statistics_group,
-	&spi_slave_group,
+	&spi_target_group,
 	NULL,
 };
 
-static const struct class spi_slave_class = {
+static const struct class spi_target_class = {
 	.name		= "spi_slave",
 	.dev_release	= spi_controller_release,
-	.dev_groups	= spi_slave_groups,
+	.dev_groups	= spi_target_groups,
 };
 #else
-extern struct class spi_slave_class;	/* dummy */
+extern struct class spi_target_class;	/* dummy */
 #endif
 
 /**
- * __spi_alloc_controller - allocate an SPI master or slave controller
+ * __spi_alloc_controller - allocate an SPI host or target controller
  * @dev: the controller, possibly using the platform_bus
  * @size: how much zeroed driver-private data to allocate; the pointer to this
  *	memory is in the driver_data field of the returned device, accessible
  *	with spi_controller_get_devdata(); the memory is cacheline aligned;
  *	drivers granting DMA access to portions of their private data need to
  *	round up @size using ALIGN(size, dma_get_cache_alignment()).
- * @slave: flag indicating whether to allocate an SPI master (false) or SPI
- *	slave (true) controller
+ * @target: flag indicating whether to allocate an SPI host (false) or SPI target (true)
+ *	controller
  * Context: can sleep
  *
  * This call is used only by SPI controller drivers, which are the
@@ -3048,7 +3047,7 @@ extern struct class spi_slave_class;	/* dummy */
  * Return: the SPI controller structure on success, else NULL.
  */
 struct spi_controller *__spi_alloc_controller(struct device *dev,
-					      unsigned int size, bool slave)
+					      unsigned int size, bool target)
 {
 	struct spi_controller	*ctlr;
 	size_t ctlr_size = ALIGN(sizeof(*ctlr), dma_get_cache_alignment());
@@ -3069,11 +3068,11 @@ struct spi_controller *__spi_alloc_controller(struct device *dev,
 	mutex_init(&ctlr->add_lock);
 	ctlr->bus_num = -1;
 	ctlr->num_chipselect = 1;
-	ctlr->slave = slave;
-	if (IS_ENABLED(CONFIG_SPI_SLAVE) && slave)
-		ctlr->dev.class = &spi_slave_class;
+	ctlr->target = target;
+	if (IS_ENABLED(CONFIG_SPI_SLAVE) && target)
+		ctlr->dev.class = &spi_target_class;
 	else
-		ctlr->dev.class = &spi_master_class;
+		ctlr->dev.class = &spi_controller_class;
 	ctlr->dev.parent = dev;
 	pm_suspend_ignore_children(&ctlr->dev, true);
 	spi_controller_set_devdata(ctlr, (void *)ctlr + ctlr_size);
@@ -3091,7 +3090,7 @@ static void devm_spi_release_controller(struct device *dev, void *ctlr)
  * __devm_spi_alloc_controller - resource-managed __spi_alloc_controller()
  * @dev: physical device of SPI controller
  * @size: how much zeroed driver-private data to allocate
- * @slave: whether to allocate an SPI master (false) or SPI slave (true)
+ * @target: whether to allocate an SPI host (false) or SPI target (true) controller
  * Context: can sleep
  *
  * Allocate an SPI controller and automatically release a reference on it
@@ -3104,7 +3103,7 @@ static void devm_spi_release_controller(struct device *dev, void *ctlr)
  */
 struct spi_controller *__devm_spi_alloc_controller(struct device *dev,
 						   unsigned int size,
-						   bool slave)
+						   bool target)
 {
 	struct spi_controller **ptr, *ctlr;
 
@@ -3113,7 +3112,7 @@ struct spi_controller *__devm_spi_alloc_controller(struct device *dev,
 	if (!ptr)
 		return NULL;
 
-	ctlr = __spi_alloc_controller(dev, size, slave);
+	ctlr = __spi_alloc_controller(dev, size, target);
 	if (ctlr) {
 		ctlr->devm_allocated = true;
 		*ptr = ctlr;
@@ -3127,8 +3126,8 @@ struct spi_controller *__devm_spi_alloc_controller(struct device *dev,
 EXPORT_SYMBOL_GPL(__devm_spi_alloc_controller);
 
 /**
- * spi_get_gpio_descs() - grab chip select GPIOs for the master
- * @ctlr: The SPI master to grab GPIO descriptors for
+ * spi_get_gpio_descs() - grab chip select GPIOs for the controller
+ * @ctlr: The SPI controller to grab GPIO descriptors for
  */
 static int spi_get_gpio_descs(struct spi_controller *ctlr)
 {
@@ -3226,7 +3225,7 @@ static int spi_controller_id_alloc(struct spi_controller *ctlr, int start, int e
 	int id;
 
 	mutex_lock(&board_lock);
-	id = idr_alloc(&spi_master_idr, ctlr, start, end, GFP_KERNEL);
+	id = idr_alloc(&spi_controller_idr, ctlr, start, end, GFP_KERNEL);
 	mutex_unlock(&board_lock);
 	if (WARN(id < 0, "couldn't get idr"))
 		return id == -ENOSPC ? -EBUSY : id;
@@ -3375,7 +3374,7 @@ int spi_register_controller(struct spi_controller *ctlr)
 	spi_destroy_queue(ctlr);
 free_bus_id:
 	mutex_lock(&board_lock);
-	idr_remove(&spi_master_idr, ctlr->bus_num);
+	idr_remove(&spi_controller_idr, ctlr->bus_num);
 	mutex_unlock(&board_lock);
 	return status;
 }
@@ -3387,8 +3386,7 @@ static void devm_spi_unregister(struct device *dev, void *res)
 }
 
 /**
- * devm_spi_register_controller - register managed SPI host or target
- *	controller
+ * devm_spi_register_controller - register managed SPI host or target controller
  * @dev:    device managing SPI controller
  * @ctlr: initialized controller, originally from spi_alloc_host() or
  *	spi_alloc_target()
@@ -3428,7 +3426,7 @@ static int __unregister(struct device *dev, void *null)
 }
 
 /**
- * spi_unregister_controller - unregister SPI master or slave controller
+ * spi_unregister_controller - unregister SPI host or target controller
  * @ctlr: the controller being unregistered
  * Context: can sleep
  *
@@ -3452,7 +3450,7 @@ void spi_unregister_controller(struct spi_controller *ctlr)
 
 	/* First make sure that this controller was ever added */
 	mutex_lock(&board_lock);
-	found = idr_find(&spi_master_idr, id);
+	found = idr_find(&spi_controller_idr, id);
 	mutex_unlock(&board_lock);
 	if (ctlr->queued) {
 		if (spi_destroy_queue(ctlr))
@@ -3467,7 +3465,7 @@ void spi_unregister_controller(struct spi_controller *ctlr)
 	/* Free bus id */
 	mutex_lock(&board_lock);
 	if (found == ctlr)
-		idr_remove(&spi_master_idr, id);
+		idr_remove(&spi_controller_idr, id);
 	mutex_unlock(&board_lock);
 
 	if (IS_ENABLED(CONFIG_SPI_DYNAMIC))
@@ -4620,7 +4618,7 @@ EXPORT_SYMBOL_GPL(spi_sync_locked);
 
 /**
  * spi_bus_lock - obtain a lock for exclusive SPI bus usage
- * @ctlr: SPI bus master that should be locked for exclusive bus access
+ * @ctlr: SPI bus controller that should be locked for exclusive bus access
  * Context: can sleep
  *
  * This call may only be used from a context that may sleep.  The sleep
@@ -4651,7 +4649,7 @@ EXPORT_SYMBOL_GPL(spi_bus_lock);
 
 /**
  * spi_bus_unlock - release the lock for exclusive SPI bus usage
- * @ctlr: SPI bus master that was locked for exclusive bus access
+ * @ctlr: SPI bus controller that was locked for exclusive bus access
  * Context: can sleep
  *
  * This call may only be used from a context that may sleep.  The sleep
@@ -4768,9 +4766,9 @@ static struct spi_controller *of_find_spi_controller_by_node(struct device_node
 {
 	struct device *dev;
 
-	dev = class_find_device_by_of_node(&spi_master_class, node);
+	dev = class_find_device_by_of_node(&spi_controller_class, node);
 	if (!dev && IS_ENABLED(CONFIG_SPI_SLAVE))
-		dev = class_find_device_by_of_node(&spi_slave_class, node);
+		dev = class_find_device_by_of_node(&spi_target_class, node);
 	if (!dev)
 		return NULL;
 
@@ -4850,10 +4848,10 @@ struct spi_controller *acpi_spi_find_controller_by_adev(struct acpi_device *adev
 {
 	struct device *dev;
 
-	dev = class_find_device(&spi_master_class, NULL, adev,
+	dev = class_find_device(&spi_controller_class, NULL, adev,
 				spi_acpi_controller_match);
 	if (!dev && IS_ENABLED(CONFIG_SPI_SLAVE))
-		dev = class_find_device(&spi_slave_class, NULL, adev,
+		dev = class_find_device(&spi_target_class, NULL, adev,
 					spi_acpi_controller_match);
 	if (!dev)
 		return NULL;
@@ -4923,12 +4921,12 @@ static int __init spi_init(void)
 	if (status < 0)
 		goto err1;
 
-	status = class_register(&spi_master_class);
+	status = class_register(&spi_controller_class);
 	if (status < 0)
 		goto err2;
 
 	if (IS_ENABLED(CONFIG_SPI_SLAVE)) {
-		status = class_register(&spi_slave_class);
+		status = class_register(&spi_target_class);
 		if (status < 0)
 			goto err3;
 	}
@@ -4941,7 +4939,7 @@ static int __init spi_init(void)
 	return 0;
 
 err3:
-	class_unregister(&spi_master_class);
+	class_unregister(&spi_controller_class);
 err2:
 	bus_unregister(&spi_bus_type);
 err1: