openwrt/target/linux/generic/patches-3.18/259-regmap_dynamic.patch

--- a/drivers/base/regmap/Kconfig
+++ b/drivers/base/regmap/Kconfig
@@ -3,9 +3,8 @@
 # subsystems should select the appropriate symbols.
 
 config REGMAP
-	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_MMIO || REGMAP_IRQ)
 	select IRQ_DOMAIN if REGMAP_IRQ
-	bool
+	tristate "Regmap"
 
 config REGCACHE_COMPRESSED
 	select LZO_COMPRESS
@@ -13,19 +12,25 @@ config REGCACHE_COMPRESSED
 	bool
 
 config REGMAP_I2C
-	tristate
+	tristate "Regmap I2C"
+	select REGMAP
 	depends on I2C
 
 config REGMAP_SPI
-	tristate
+	tristate "Regmap SPI"
+	select REGMAP
+	depends on SPI_MASTER
 	depends on SPI
 
 config REGMAP_SPMI
+	select REGMAP
 	tristate
 	depends on SPMI
 
 config REGMAP_MMIO
-	tristate
+	tristate "Regmap MMIO"
+	select REGMAP
 
 config REGMAP_IRQ
+	select REGMAP
 	bool
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -49,7 +49,7 @@ struct reg_default {
 	unsigned int def;
 };
 
-#ifdef CONFIG_REGMAP
+#if IS_ENABLED(CONFIG_REGMAP)
 
 enum regmap_endian {
 	/* Unspecified -> 0 -> Backwards compatible default */
--- a/drivers/base/regmap/Makefile
+++ b/drivers/base/regmap/Makefile
@@ -1,7 +1,11 @@
-obj-$(CONFIG_REGMAP) += regmap.o regcache.o
-obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
-obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
-obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
+regmap-core-objs = regmap.o regcache.o regcache-rbtree.o regcache-flat.o
+ifdef CONFIG_DEBUG_FS
+regmap-core-objs += regmap-debugfs.o
+endif
+ifdef CONFIG_REGCACHE_COMPRESSED
+regmap-core-objs += regcache-lzo.o
+endif
+obj-$(CONFIG_REGMAP) += regmap-core.o
 obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
 obj-$(CONFIG_REGMAP_SPI) += regmap-spi.o
 obj-$(CONFIG_REGMAP_SPMI) += regmap-spmi.o
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -13,6 +13,7 @@
 #include <linux/device.h>
 #include <linux/slab.h>
 #include <linux/export.h>
+#include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/err.h>
 #include <linux/of.h>
@@ -2630,3 +2631,5 @@ static int __init regmap_initcall(void)
 	return 0;
 }
 postcore_initcall(regmap_initcall);
+
+MODULE_LICENSE("GPL");