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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d 
 kernel/include/linux/platform_device.h
....@@ -1,17 +1,17 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * platform_device.h - generic, centralized driver model
34  *
45  * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
56  *
6
- * This file is released under the GPLv2
7
- *
8
- * See Documentation/driver-model/ for more information.
7
+ * See Documentation/driver-api/driver-model/ for more information.
98  */
109 
1110 #ifndef _PLATFORM_DEVICE_H_
1211 #define _PLATFORM_DEVICE_H_
1312 
1413 #include <linux/device.h>
14
+#include <linux/android_kabi.h>
1515 
1616 #define PLATFORM_DEVID_NONE	(-1)
1717 #define PLATFORM_DEVID_AUTO	(-2)
....@@ -25,6 +25,8 @@
2525 	int		id;
2626 	bool		id_auto;
2727 	struct device	dev;
28
+	u64		platform_dma_mask;
29
+	struct device_dma_parameters dma_parms;
2830 	u32		num_resources;
2931 	struct resource	*resource;
3032 
....@@ -36,10 +38,14 @@
3638 
3739 	/* arch specific additions */
3840 	struct pdev_archdata	archdata;
41
+
42
+	ANDROID_KABI_RESERVE(1);
43
+	ANDROID_KABI_RESERVE(2);
3944 };
4045 
4146 #define platform_get_device_id(pdev)	((pdev)->id_entry)
4247 
48
+#define dev_is_platform(dev) ((dev)->bus == &platform_bus_type)
4349 #define to_platform_device(x) container_of((x), struct platform_device, dev)
4450 
4551 extern int platform_device_register(struct platform_device *);
....@@ -48,26 +54,38 @@
4854 extern struct bus_type platform_bus_type;
4955 extern struct device platform_bus;
5056 
51
-extern void arch_setup_pdev_archdata(struct platform_device *);
5257 extern struct resource *platform_get_resource(struct platform_device *,
5358 					      unsigned int, unsigned int);
59
+extern struct device *
60
+platform_find_device_by_driver(struct device *start,
61
+			       const struct device_driver *drv);
5462 extern void __iomem *
5563 devm_platform_get_and_ioremap_resource(struct platform_device *pdev,
5664 				unsigned int index, struct resource **res);
5765 extern void __iomem *
5866 devm_platform_ioremap_resource(struct platform_device *pdev,
5967 			       unsigned int index);
68
+extern void __iomem *
69
+devm_platform_ioremap_resource_wc(struct platform_device *pdev,
70
+				  unsigned int index);
71
+extern void __iomem *
72
+devm_platform_ioremap_resource_byname(struct platform_device *pdev,
73
+				      const char *name);
6074 extern int platform_get_irq(struct platform_device *, unsigned int);
75
+extern int platform_get_irq_optional(struct platform_device *, unsigned int);
6176 extern int platform_irq_count(struct platform_device *);
6277 extern struct resource *platform_get_resource_byname(struct platform_device *,
6378 						     unsigned int,
6479 						     const char *);
6580 extern int platform_get_irq_byname(struct platform_device *, const char *);
81
+extern int platform_get_irq_byname_optional(struct platform_device *dev,
82
+					    const char *name);
6683 extern int platform_add_devices(struct platform_device **, int);
6784 
6885 struct platform_device_info {
6986 		struct device *parent;
7087 		struct fwnode_handle *fwnode;
88
+		bool of_node_reused;
7189 
7290 		const char *name;
7391 		int id;
....@@ -79,7 +97,9 @@
7997 		size_t size_data;
8098 		u64 dma_mask;
8199 
82
-		struct property_entry *properties;
100
+		const struct property_entry *properties;
101
+
102
+		ANDROID_KABI_RESERVE(1);
83103 };
84104 extern struct platform_device *platform_device_register_full(
85105 		const struct platform_device_info *pdevinfo);
....@@ -192,6 +212,8 @@
192212 	struct device_driver driver;
193213 	const struct platform_device_id *id_table;
194214 	bool prevent_deferred_probe;
215
+
216
+	ANDROID_KABI_RESERVE(1);
195217 };
196218 
197219 #define to_platform_driver(drv)	(container_of((drv), struct platform_driver, \
....@@ -233,10 +255,6 @@
233255 #define module_platform_driver(__platform_driver) \
234256 	module_driver(__platform_driver, platform_driver_register, \
235257 			platform_driver_unregister)
236
-
237
-#define module_platform_driver1(__platform_driver) \
238
-       module_driver1(__platform_driver, platform_driver_register, \
239
-                       platform_driver_unregister)
240258 
241259 /* builtin_platform_driver() - Helper macro for builtin drivers that
242260  * don't do anything special in driver init.  This eliminates some
....@@ -294,58 +312,6 @@
294312 #define platform_register_drivers(drivers, count) \
295313 	__platform_register_drivers(drivers, count, THIS_MODULE)
296314 
297
-/* early platform driver interface */
298
-struct early_platform_driver {
299
-	const char *class_str;
300
-	struct platform_driver *pdrv;
301
-	struct list_head list;
302
-	int requested_id;
303
-	char *buffer;
304
-	int bufsize;
305
-};
306
-
307
-#define EARLY_PLATFORM_ID_UNSET -2
308
-#define EARLY_PLATFORM_ID_ERROR -3
309
-
310
-extern int early_platform_driver_register(struct early_platform_driver *epdrv,
311
-					  char *buf);
312
-extern void early_platform_add_devices(struct platform_device **devs, int num);
313
-
314
-static inline int is_early_platform_device(struct platform_device *pdev)
315
-{
316
-	return !pdev->dev.driver;
317
-}
318
-
319
-extern void early_platform_driver_register_all(char *class_str);
320
-extern int early_platform_driver_probe(char *class_str,
321
-				       int nr_probe, int user_only);
322
-extern void early_platform_cleanup(void);
323
-
324
-#define early_platform_init(class_string, platdrv)		\
325
-	early_platform_init_buffer(class_string, platdrv, NULL, 0)
326
-
327
-#ifndef MODULE
328
-#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz)	\
329
-static __initdata struct early_platform_driver early_driver = {		\
330
-	.class_str = class_string,					\
331
-	.buffer = buf,							\
332
-	.bufsize = bufsiz,						\
333
-	.pdrv = platdrv,						\
334
-	.requested_id = EARLY_PLATFORM_ID_UNSET,			\
335
-};									\
336
-static int __init early_platform_driver_setup_func(char *buffer)	\
337
-{									\
338
-	return early_platform_driver_register(&early_driver, buffer);	\
339
-}									\
340
-early_param(class_string, early_platform_driver_setup_func)
341
-#else /* MODULE */
342
-#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz)	\
343
-static inline char *early_platform_driver_setup_func(void)		\
344
-{									\
345
-	return bufsiz ? buf : NULL;					\
346
-}
347
-#endif /* MODULE */
348
-
349315 #ifdef CONFIG_SUSPEND
350316 extern int platform_pm_suspend(struct device *dev);
351317 extern int platform_pm_resume(struct device *dev);
....@@ -380,4 +346,19 @@
380346 #define USE_PLATFORM_PM_SLEEP_OPS
381347 #endif
382348 
349
+#ifndef CONFIG_SUPERH
350
+/*
351
+ * REVISIT: This stub is needed for all non-SuperH users of early platform
352
+ * drivers. It should go away once we introduce the new platform_device-based
353
+ * early driver framework.
354
+ */
355
+static inline int is_sh_early_platform_device(struct platform_device *pdev)
356
+{
357
+	return 0;
358
+}
359
+#endif /* CONFIG_SUPERH */
360
+
361
+/* For now only SuperH uses it */
362
+void early_platform_cleanup(void);
363
+
383364 #endif /* _PLATFORM_DEVICE_H_ */