1 From 811d9e2268a62b830cfe93cd8bc929afcb8b198b Mon Sep 17 00:00:00 2001
2 From: Felix Fietkau <nbd@nbd.name>
3 Date: Sat, 15 Jul 2017 21:12:38 +0200
4 Subject: kernel: move regmap bloat out of the kernel image if it is only being used in modules
6 lede-commit: 96f39119815028073583e4fca3a9c5fe9141e998
7 Signed-off-by: Felix Fietkau <nbd@nbd.name>
9 drivers/base/regmap/Kconfig | 15 ++++++++++-----
10 drivers/base/regmap/Makefile | 12 ++++++++----
11 drivers/base/regmap/regmap.c | 3 +++
12 include/linux/regmap.h | 2 +-
13 4 files changed, 22 insertions(+), 10 deletions(-)
15 --- a/drivers/base/regmap/Kconfig
16 +++ b/drivers/base/regmap/Kconfig
18 # subsystems should select the appropriate symbols.
21 - default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ || REGMAP_SCCB || REGMAP_I3C)
22 select IRQ_DOMAIN if REGMAP_IRQ
26 config REGCACHE_COMPRESSED
28 @@ -18,38 +17,49 @@ config REGMAP_AC97
43 + depends on SPI_MASTER
64 config REGMAP_SOUNDWIRE
78 --- a/drivers/base/regmap/Makefile
79 +++ b/drivers/base/regmap/Makefile
81 # For include/trace/define_trace.h to include trace.h
82 CFLAGS_regmap.o := -I$(src)
84 -obj-$(CONFIG_REGMAP) += regmap.o regcache.o
85 -obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
86 -obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
87 -obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
88 +regmap-core-objs = regmap.o regcache.o regcache-rbtree.o regcache-flat.o
89 +ifdef CONFIG_DEBUG_FS
90 +regmap-core-objs += regmap-debugfs.o
92 +ifdef CONFIG_REGCACHE_COMPRESSED
93 +regmap-core-objs += regcache-lzo.o
95 +obj-$(CONFIG_REGMAP) += regmap-core.o
96 obj-$(CONFIG_REGMAP_AC97) += regmap-ac97.o
97 obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
98 obj-$(CONFIG_REGMAP_SLIMBUS) += regmap-slimbus.o
99 --- a/drivers/base/regmap/regmap.c
100 +++ b/drivers/base/regmap/regmap.c
102 #include <linux/device.h>
103 #include <linux/slab.h>
104 #include <linux/export.h>
105 +#include <linux/module.h>
106 #include <linux/mutex.h>
107 #include <linux/err.h>
108 #include <linux/of.h>
109 @@ -3124,3 +3125,5 @@ static int __init regmap_initcall(void)
112 postcore_initcall(regmap_initcall);
114 +MODULE_LICENSE("GPL");
115 --- a/include/linux/regmap.h
116 +++ b/include/linux/regmap.h
117 @@ -185,7 +185,7 @@ struct reg_sequence {
118 pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
121 -#ifdef CONFIG_REGMAP
122 +#if IS_REACHABLE(CONFIG_REGMAP)
125 /* Unspecified -> 0 -> Backwards compatible default */