sh: add the sh_ prefix to early platform symbols

Old early platform device support is now sh-specific. Before moving on
to implementing new early platform framework based on real platform
devices, prefix all early platform symbols with 'sh_'.

Signed-off-by: Bartosz Golaszewski <[e-mail]>
Cc: Rich Felker <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

arch/sh/drivers/platform_early.c

···
 #include <linux/mod_devicetable.h>
 #include <linux/pm.h>
 
-static __initdata LIST_HEAD(early_platform_driver_list);
-static __initdata LIST_HEAD(early_platform_device_list);
+static __initdata LIST_HEAD(sh_early_platform_driver_list);
+static __initdata LIST_HEAD(sh_early_platform_device_list);
 
 static const struct platform_device_id *
 platform_match_id(const struct platform_device_id *id,
···
 #endif
 
 /**
- * early_platform_driver_register - register early platform driver
- * @epdrv: early_platform driver structure
+ * sh_early_platform_driver_register - register early platform driver
+ * @epdrv: sh_early_platform driver structure
  * @buf: string passed from early_param()
  *
- * Helper function for early_platform_init() / early_platform_init_buffer()
+ * Helper function for sh_early_platform_init() / sh_early_platform_init_buffer()
  */
-int __init early_platform_driver_register(struct early_platform_driver *epdrv,
+int __init sh_early_platform_driver_register(struct sh_early_platform_driver *epdrv,
 					  char *buf)
 {
 	char *tmp;
···
 	 */
 	if (!epdrv->list.next) {
 		INIT_LIST_HEAD(&epdrv->list);
-		list_add_tail(&epdrv->list, &early_platform_driver_list);
+		list_add_tail(&epdrv->list, &sh_early_platform_driver_list);
 	}
 
 	/* If the user has specified device then make sure the driver
···
 	 */
 	n = strlen(epdrv->pdrv->driver.name);
 	if (buf && !strncmp(buf, epdrv->pdrv->driver.name, n)) {
-		list_move(&epdrv->list, &early_platform_driver_list);
+		list_move(&epdrv->list, &sh_early_platform_driver_list);
 
 		/* Allow passing parameters after device name */
 		if (buf[n] == '\0' || buf[n] == ',')
···
 }
 
 /**
- * early_platform_add_devices - adds a number of early platform devices
+ * sh_early_platform_add_devices - adds a number of early platform devices
  * @devs: array of early platform devices to add
  * @num: number of early platform devices in array
  *
  * Used by early architecture code to register early platform devices and
  * their platform data.
  */
-void __init early_platform_add_devices(struct platform_device **devs, int num)
+void __init sh_early_platform_add_devices(struct platform_device **devs, int num)
 {
 	struct device *dev;
 	int i;
···
 			pm_runtime_early_init(dev);
 			INIT_LIST_HEAD(&dev->devres_head);
 			list_add_tail(&dev->devres_head,
-				      &early_platform_device_list);
+				      &sh_early_platform_device_list);
 		}
 	}
 }
 
 /**
- * early_platform_driver_register_all - register early platform drivers
+ * sh_early_platform_driver_register_all - register early platform drivers
  * @class_str: string to identify early platform driver class
  *
  * Used by architecture code to register all early platform drivers
  * for a certain class. If omitted then only early platform drivers
  * with matching kernel command line class parameters will be registered.
  */
-void __init early_platform_driver_register_all(char *class_str)
+void __init sh_early_platform_driver_register_all(char *class_str)
 {
 	/* The "class_str" parameter may or may not be present on the kernel
 	 * command line. If it is present then there may be more than one
···
 	 * We use parse_early_options() to make sure the early_param() gets
 	 * called at least once. The early_param() may be called more than
 	 * once since the name of the preferred device may be specified on
-	 * the kernel command line. early_platform_driver_register() handles
+	 * the kernel command line. sh_early_platform_driver_register() handles
 	 * this case for us.
 	 */
 	parse_early_options(class_str);
 }
 
 /**
- * early_platform_match - find early platform device matching driver
+ * sh_early_platform_match - find early platform device matching driver
  * @epdrv: early platform driver structure
  * @id: id to match against
  */
 static struct platform_device * __init
-early_platform_match(struct early_platform_driver *epdrv, int id)
+sh_early_platform_match(struct sh_early_platform_driver *epdrv, int id)
 {
 	struct platform_device *pd;
 
-	list_for_each_entry(pd, &early_platform_device_list, dev.devres_head)
+	list_for_each_entry(pd, &sh_early_platform_device_list, dev.devres_head)
 		if (platform_match(&pd->dev, &epdrv->pdrv->driver))
 			if (pd->id == id)
 				return pd;
···
 }
 
 /**
- * early_platform_left - check if early platform driver has matching devices
+ * sh_early_platform_left - check if early platform driver has matching devices
  * @epdrv: early platform driver structure
  * @id: return true if id or above exists
  */
-static int __init early_platform_left(struct early_platform_driver *epdrv,
+static int __init sh_early_platform_left(struct sh_early_platform_driver *epdrv,
 				       int id)
 {
 	struct platform_device *pd;
 
-	list_for_each_entry(pd, &early_platform_device_list, dev.devres_head)
+	list_for_each_entry(pd, &sh_early_platform_device_list, dev.devres_head)
 		if (platform_match(&pd->dev, &epdrv->pdrv->driver))
 			if (pd->id >= id)
 				return 1;
···
 }
 
 /**
- * early_platform_driver_probe_id - probe drivers matching class_str and id
+ * sh_early_platform_driver_probe_id - probe drivers matching class_str and id
  * @class_str: string to identify early platform driver class
  * @id: id to match against
  * @nr_probe: number of platform devices to successfully probe before exiting
  */
-static int __init early_platform_driver_probe_id(char *class_str,
+static int __init sh_early_platform_driver_probe_id(char *class_str,
 						 int id,
 						 int nr_probe)
 {
-	struct early_platform_driver *epdrv;
+	struct sh_early_platform_driver *epdrv;
 	struct platform_device *match;
 	int match_id;
 	int n = 0;
 	int left = 0;
 
-	list_for_each_entry(epdrv, &early_platform_driver_list, list) {
+	list_for_each_entry(epdrv, &sh_early_platform_driver_list, list) {
 		/* only use drivers matching our class_str */
 		if (strcmp(class_str, epdrv->class_str))
 			continue;
···
 
 		} else {
 			match_id = id;
-			left += early_platform_left(epdrv, id);
+			left += sh_early_platform_left(epdrv, id);
 
 			/* skip requested id */
 			switch (epdrv->requested_id) {
···
 			match = NULL;
 			break;
 		default:
-			match = early_platform_match(epdrv, match_id);
+			match = sh_early_platform_match(epdrv, match_id);
 		}
 
 		if (match) {
···
 }
 
 /**
- * early_platform_driver_probe - probe a class of registered drivers
+ * sh_early_platform_driver_probe - probe a class of registered drivers
  * @class_str: string to identify early platform driver class
  * @nr_probe: number of platform devices to successfully probe before exiting
  * @user_only: only probe user specified early platform devices
···
  * within a certain class. For probe to happen a registered early platform
  * device matching a registered early platform driver is needed.
  */
-int __init early_platform_driver_probe(char *class_str,
+int __init sh_early_platform_driver_probe(char *class_str,
 				       int nr_probe,
 				       int user_only)
 {
···
 
 	n = 0;
 	for (i = -2; n < nr_probe; i++) {
-		k = early_platform_driver_probe_id(class_str, i, nr_probe - n);
+		k = sh_early_platform_driver_probe_id(class_str, i, nr_probe - n);
 
 		if (k < 0)
 			break;
···
 }
 
 /**
- * early_platform_cleanup - clean up early platform code
+ * sh_early_platform_cleanup - clean up early platform code
  */
-static int __init early_platform_cleanup(void)
+static int __init sh_early_platform_cleanup(void)
 {
 	struct platform_device *pd, *pd2;
 
 	/* clean up the devres list used to chain devices */
-	list_for_each_entry_safe(pd, pd2, &early_platform_device_list,
+	list_for_each_entry_safe(pd, pd2, &sh_early_platform_device_list,
 				 dev.devres_head) {
 		list_del(&pd->dev.devres_head);
 		memset(&pd->dev.devres_head, 0, sizeof(pd->dev.devres_head));
···
  * This must happen once after all early devices are probed but before probing
  * real platform devices.
  */
-subsys_initcall(early_platform_cleanup);
+subsys_initcall(sh_early_platform_cleanup);

arch/sh/include/asm/platform_early.h

···
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 
-struct early_platform_driver {
+struct sh_early_platform_driver {
 	const char *class_str;
 	struct platform_driver *pdrv;
 	struct list_head list;
···
 #define EARLY_PLATFORM_ID_UNSET -2
 #define EARLY_PLATFORM_ID_ERROR -3
 
-extern int early_platform_driver_register(struct early_platform_driver *epdrv,
+extern int sh_early_platform_driver_register(struct sh_early_platform_driver *epdrv,
 					  char *buf);
-extern void early_platform_add_devices(struct platform_device **devs, int num);
+extern void sh_early_platform_add_devices(struct platform_device **devs, int num);
 
-static inline int is_early_platform_device(struct platform_device *pdev)
+static inline int is_sh_early_platform_device(struct platform_device *pdev)
 {
 	return !pdev->dev.driver;
 }
 
-extern void early_platform_driver_register_all(char *class_str);
-extern int early_platform_driver_probe(char *class_str,
+extern void sh_early_platform_driver_register_all(char *class_str);
+extern int sh_early_platform_driver_probe(char *class_str,
 				       int nr_probe, int user_only);
 
-#define early_platform_init(class_string, platdrv)		\
-	early_platform_init_buffer(class_string, platdrv, NULL, 0)
+#define sh_early_platform_init(class_string, platdrv)		\
+	sh_early_platform_init_buffer(class_string, platdrv, NULL, 0)
 
 #ifndef MODULE
-#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz)	\
-static __initdata struct early_platform_driver early_driver = {		\
+#define sh_early_platform_init_buffer(class_string, platdrv, buf, bufsiz)	\
+static __initdata struct sh_early_platform_driver early_driver = {		\
 	.class_str = class_string,					\
 	.buffer = buf,							\
 	.bufsize = bufsiz,						\
 	.pdrv = platdrv,						\
 	.requested_id = EARLY_PLATFORM_ID_UNSET,			\
 };									\
-static int __init early_platform_driver_setup_func(char *buffer)	\
+static int __init sh_early_platform_driver_setup_func(char *buffer)	\
 {									\
-	return early_platform_driver_register(&early_driver, buffer);	\
+	return sh_early_platform_driver_register(&early_driver, buffer);	\
 }									\
-early_param(class_string, early_platform_driver_setup_func)
+early_param(class_string, sh_early_platform_driver_setup_func)
 #else /* MODULE */
-#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz)	\
-static inline char *early_platform_driver_setup_func(void)		\
+#define sh_early_platform_init_buffer(class_string, platdrv, buf, bufsiz)	\
+static inline char *sh_early_platform_driver_setup_func(void)		\
 {									\
 	return bufsiz ? buf : NULL;					\
 }

arch/sh/kernel/cpu/sh2/setup-sh7619.c

···
 	/* enable CMT clock */
 	__raw_writeb(__raw_readb(STBCR3) & ~0x10, STBCR3);
 
-	early_platform_add_devices(sh7619_early_devices,
+	sh_early_platform_add_devices(sh7619_early_devices,
 				   ARRAY_SIZE(sh7619_early_devices));
 }

arch/sh/kernel/cpu/sh2a/setup-mxg.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(mxg_early_devices,
+	sh_early_platform_add_devices(mxg_early_devices,
 				   ARRAY_SIZE(mxg_early_devices));
 }

arch/sh/kernel/cpu/sh2a/setup-sh7201.c

···
 	/* enable MTU2 clock */
 	__raw_writeb(__raw_readb(STBCR3) & ~0x20, STBCR3);
 
-	early_platform_add_devices(sh7201_early_devices,
+	sh_early_platform_add_devices(sh7201_early_devices,
 				   ARRAY_SIZE(sh7201_early_devices));
 }

arch/sh/kernel/cpu/sh2a/setup-sh7203.c

···
 	/* enable MTU2 clock */
 	__raw_writeb(__raw_readb(STBCR3) & ~0x20, STBCR3);
 
-	early_platform_add_devices(sh7203_early_devices,
+	sh_early_platform_add_devices(sh7203_early_devices,
 				   ARRAY_SIZE(sh7203_early_devices));
 }

arch/sh/kernel/cpu/sh2a/setup-sh7206.c

···
 	/* enable MTU2 clock */
 	__raw_writeb(__raw_readb(STBCR3) & ~0x20, STBCR3);
 
-	early_platform_add_devices(sh7206_early_devices,
+	sh_early_platform_add_devices(sh7206_early_devices,
 				   ARRAY_SIZE(sh7206_early_devices));
 }

arch/sh/kernel/cpu/sh2a/setup-sh7264.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7264_early_devices,
+	sh_early_platform_add_devices(sh7264_early_devices,
 				   ARRAY_SIZE(sh7264_early_devices));
 }

arch/sh/kernel/cpu/sh2a/setup-sh7269.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7269_early_devices,
+	sh_early_platform_add_devices(sh7269_early_devices,
 				   ARRAY_SIZE(sh7269_early_devices));
 }

arch/sh/kernel/cpu/sh3/setup-sh7705.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7705_early_devices,
+	sh_early_platform_add_devices(sh7705_early_devices,
 				   ARRAY_SIZE(sh7705_early_devices));
 }
 

arch/sh/kernel/cpu/sh3/setup-sh770x.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh770x_early_devices,
+	sh_early_platform_add_devices(sh770x_early_devices,
 				   ARRAY_SIZE(sh770x_early_devices));
 }
 

arch/sh/kernel/cpu/sh3/setup-sh7710.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7710_early_devices,
+	sh_early_platform_add_devices(sh7710_early_devices,
 				   ARRAY_SIZE(sh7710_early_devices));
 }
 

arch/sh/kernel/cpu/sh3/setup-sh7720.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7720_early_devices,
+	sh_early_platform_add_devices(sh7720_early_devices,
 				   ARRAY_SIZE(sh7720_early_devices));
 }
 

arch/sh/kernel/cpu/sh4/setup-sh4-202.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh4202_early_devices,
+	sh_early_platform_add_devices(sh4202_early_devices,
 				   ARRAY_SIZE(sh4202_early_devices));
 }
 

arch/sh/kernel/cpu/sh4/setup-sh7750.c

···
 	if (mach_is_rts7751r2d()) {
 		scif_platform_data.scscr |= SCSCR_CKE1;
 		dev[0] = &scif_device;
-		early_platform_add_devices(dev, 1);
+		sh_early_platform_add_devices(dev, 1);
 	} else {
 		dev[0] = &sci_device;
-		early_platform_add_devices(dev, 1);
+		sh_early_platform_add_devices(dev, 1);
 		dev[0] = &scif_device;
-		early_platform_add_devices(dev, 1);
+		sh_early_platform_add_devices(dev, 1);
 	}
 
-	early_platform_add_devices(sh7750_early_devices,
+	sh_early_platform_add_devices(sh7750_early_devices,
 				   ARRAY_SIZE(sh7750_early_devices));
 }
 

arch/sh/kernel/cpu/sh4/setup-sh7760.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7760_early_devices,
+	sh_early_platform_add_devices(sh7760_early_devices,
 				   ARRAY_SIZE(sh7760_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7343.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7343_early_devices,
+	sh_early_platform_add_devices(sh7343_early_devices,
 				   ARRAY_SIZE(sh7343_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7366.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7366_early_devices,
+	sh_early_platform_add_devices(sh7366_early_devices,
 				   ARRAY_SIZE(sh7366_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7722.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7722_early_devices,
+	sh_early_platform_add_devices(sh7722_early_devices,
 				   ARRAY_SIZE(sh7722_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7723.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7723_early_devices,
+	sh_early_platform_add_devices(sh7723_early_devices,
 				   ARRAY_SIZE(sh7723_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7724.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7724_early_devices,
+	sh_early_platform_add_devices(sh7724_early_devices,
 				   ARRAY_SIZE(sh7724_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7734.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7734_early_devices,
+	sh_early_platform_add_devices(sh7734_early_devices,
 		ARRAY_SIZE(sh7734_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7757.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7757_early_devices,
+	sh_early_platform_add_devices(sh7757_early_devices,
 				   ARRAY_SIZE(sh7757_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7763.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7763_early_devices,
+	sh_early_platform_add_devices(sh7763_early_devices,
 				   ARRAY_SIZE(sh7763_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7770.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7770_early_devices,
+	sh_early_platform_add_devices(sh7770_early_devices,
 				   ARRAY_SIZE(sh7770_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7780.c

···
 		scif1_platform_data.scscr &= ~SCSCR_CKE1;
 	}
 
-	early_platform_add_devices(sh7780_early_devices,
+	sh_early_platform_add_devices(sh7780_early_devices,
 				   ARRAY_SIZE(sh7780_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7785.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7785_early_devices,
+	sh_early_platform_add_devices(sh7785_early_devices,
 				   ARRAY_SIZE(sh7785_early_devices));
 }
 

arch/sh/kernel/cpu/sh4a/setup-sh7786.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh7786_early_devices,
+	sh_early_platform_add_devices(sh7786_early_devices,
 				   ARRAY_SIZE(sh7786_early_devices));
 }

arch/sh/kernel/cpu/sh4a/setup-shx3.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(shx3_early_devices,
+	sh_early_platform_add_devices(shx3_early_devices,
 				   ARRAY_SIZE(shx3_early_devices));
 }
 

arch/sh/kernel/cpu/sh5/setup-sh5.c

···
 
 void __init plat_early_device_setup(void)
 {
-	early_platform_add_devices(sh5_early_devices,
+	sh_early_platform_add_devices(sh5_early_devices,
 				   ARRAY_SIZE(sh5_early_devices));
 }

arch/sh/kernel/setup.c

···
 	sh_mv_setup();
 
 	/* Let earlyprintk output early console messages */
-	early_platform_driver_probe("earlyprintk", 1, 1);
+	sh_early_platform_driver_probe("earlyprintk", 1, 1);
 
 #ifdef CONFIG_OF_FLATTREE
 #ifdef CONFIG_USE_BUILTIN_DTB

arch/sh/kernel/time.c

···
 	 * clocksource and the jiffies clocksource is used transparently
 	 * instead. No error handling is necessary here.
 	 */
-	early_platform_driver_register_all("earlytimer");
-	early_platform_driver_probe("earlytimer", 2, 0);
+	sh_early_platform_driver_register_all("earlytimer");
+	sh_early_platform_driver_probe("earlytimer", 2, 0);
 }
 
 void __init time_init(void)

drivers/clocksource/sh_cmt.c

···
 	struct sh_cmt_device *cmt = platform_get_drvdata(pdev);
 	int ret;
 
-	if (!is_early_platform_device(pdev)) {
+	if (!is_sh_early_platform_device(pdev)) {
 		pm_runtime_set_active(&pdev->dev);
 		pm_runtime_enable(&pdev->dev);
 	}
···
 		pm_runtime_idle(&pdev->dev);
 		return ret;
 	}
-	if (is_early_platform_device(pdev))
+	if (is_sh_early_platform_device(pdev))
 		return 0;
 
  out:
···
 }
 
 #ifdef CONFIG_SUPERH
-early_platform_init("earlytimer", &sh_cmt_device_driver);
+sh_early_platform_init("earlytimer", &sh_cmt_device_driver);
 #endif
 
 subsys_initcall(sh_cmt_init);

drivers/clocksource/sh_mtu2.c

···
 	struct sh_mtu2_device *mtu = platform_get_drvdata(pdev);
 	int ret;
 
-	if (!is_early_platform_device(pdev)) {
+	if (!is_sh_early_platform_device(pdev)) {
 		pm_runtime_set_active(&pdev->dev);
 		pm_runtime_enable(&pdev->dev);
 	}
···
 		pm_runtime_idle(&pdev->dev);
 		return ret;
 	}
-	if (is_early_platform_device(pdev))
+	if (is_sh_early_platform_device(pdev))
 		return 0;
 
  out:
···
 }
 
 #ifdef CONFIG_SUPERH
-early_platform_init("earlytimer", &sh_mtu2_device_driver);
+sh_early_platform_init("earlytimer", &sh_mtu2_device_driver);
 #endif
 
 subsys_initcall(sh_mtu2_init);

drivers/clocksource/sh_tmu.c

···
 	struct sh_tmu_device *tmu = platform_get_drvdata(pdev);
 	int ret;
 
-	if (!is_early_platform_device(pdev)) {
+	if (!is_sh_early_platform_device(pdev)) {
 		pm_runtime_set_active(&pdev->dev);
 		pm_runtime_enable(&pdev->dev);
 	}
···
 		return ret;
 	}
 
-	if (is_early_platform_device(pdev))
+	if (is_sh_early_platform_device(pdev))
 		return 0;
 
  out:
···
 }
 
 #ifdef CONFIG_SUPERH
-early_platform_init("earlytimer", &sh_tmu_device_driver);
+sh_early_platform_init("earlytimer", &sh_tmu_device_driver);
 #endif
 
 subsys_initcall(sh_tmu_init);

drivers/tty/serial/sh-sci.c

···
 	 * to make it beyond this yet.
 	 */
 #ifdef CONFIG_SUPERH
-	if (is_early_platform_device(dev))
+	if (is_sh_early_platform_device(dev))
 		return sci_probe_earlyprintk(dev);
 #endif
 
···
 }
 
 #if defined(CONFIG_SUPERH) && defined(CONFIG_SERIAL_SH_SCI_CONSOLE)
-early_platform_init_buffer("earlyprintk", &sci_driver,
+sh_early_platform_init_buffer("earlyprintk", &sci_driver,
 			   early_serial_buf, ARRAY_SIZE(early_serial_buf));
 #endif
 #ifdef CONFIG_SERIAL_SH_SCI_EARLYCON

include/linux/platform_device.h

···
  * drivers. It should go away once we introduce the new platform_device-based
  * early driver framework.
  */
-static inline int is_early_platform_device(struct platform_device *pdev)
+static inline int is_sh_early_platform_device(struct platform_device *pdev)
 {
 	return 0;
 }