259-regmap_dynamic.patch 2.8 KB

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  1. From 811d9e2268a62b830cfe93cd8bc929afcb8b198b Mon Sep 17 00:00:00 2001
  2. From: Felix Fietkau <[email protected]>
  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
  5. lede-commit: 96f39119815028073583e4fca3a9c5fe9141e998
  6. Signed-off-by: Felix Fietkau <[email protected]>
  7. ---
  8. drivers/base/regmap/Kconfig | 15 ++++++++++-----
  9. drivers/base/regmap/Makefile | 12 ++++++++----
  10. drivers/base/regmap/regmap.c | 3 +++
  11. include/linux/regmap.h | 2 +-
  12. 4 files changed, 22 insertions(+), 10 deletions(-)
  13. --- a/drivers/base/regmap/Kconfig
  14. +++ b/drivers/base/regmap/Kconfig
  15. @@ -4,9 +4,8 @@
  16. # subsystems should select the appropriate symbols.
  17. config REGMAP
  18. - default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
  19. select IRQ_DOMAIN if REGMAP_IRQ
  20. - bool
  21. + tristate
  22. config REGCACHE_COMPRESSED
  23. select LZO_COMPRESS
  24. @@ -18,6 +17,7 @@ config REGMAP_AC97
  25. config REGMAP_I2C
  26. tristate
  27. + select REGMAP
  28. depends on I2C
  29. config REGMAP_SLIMBUS
  30. @@ -26,20 +26,26 @@ config REGMAP_SLIMBUS
  31. config REGMAP_SPI
  32. tristate
  33. + select REGMAP
  34. + depends on SPI_MASTER
  35. depends on SPI
  36. config REGMAP_SPMI
  37. + select REGMAP
  38. tristate
  39. depends on SPMI
  40. config REGMAP_W1
  41. + select REGMAP
  42. tristate
  43. depends on W1
  44. config REGMAP_MMIO
  45. tristate
  46. + select REGMAP
  47. config REGMAP_IRQ
  48. + select REGMAP
  49. bool
  50. config REGMAP_SOUNDWIRE
  51. --- a/drivers/base/regmap/Makefile
  52. +++ b/drivers/base/regmap/Makefile
  53. @@ -2,10 +2,14 @@
  54. # For include/trace/define_trace.h to include trace.h
  55. CFLAGS_regmap.o := -I$(src)
  56. -obj-$(CONFIG_REGMAP) += regmap.o regcache.o
  57. -obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-flat.o
  58. -obj-$(CONFIG_REGCACHE_COMPRESSED) += regcache-lzo.o
  59. -obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
  60. +regmap-core-objs = regmap.o regcache.o regcache-rbtree.o regcache-flat.o
  61. +ifdef CONFIG_DEBUG_FS
  62. +regmap-core-objs += regmap-debugfs.o
  63. +endif
  64. +ifdef CONFIG_REGCACHE_COMPRESSED
  65. +regmap-core-objs += regcache-lzo.o
  66. +endif
  67. +obj-$(CONFIG_REGMAP) += regmap-core.o
  68. obj-$(CONFIG_REGMAP_AC97) += regmap-ac97.o
  69. obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
  70. obj-$(CONFIG_REGMAP_SLIMBUS) += regmap-slimbus.o
  71. --- a/drivers/base/regmap/regmap.c
  72. +++ b/drivers/base/regmap/regmap.c
  73. @@ -13,6 +13,7 @@
  74. #include <linux/device.h>
  75. #include <linux/slab.h>
  76. #include <linux/export.h>
  77. +#include <linux/module.h>
  78. #include <linux/mutex.h>
  79. #include <linux/err.h>
  80. #include <linux/of.h>
  81. @@ -3037,3 +3038,5 @@ static int __init regmap_initcall(void)
  82. return 0;
  83. }
  84. postcore_initcall(regmap_initcall);
  85. +
  86. +MODULE_LICENSE("GPL");
  87. --- a/include/linux/regmap.h
  88. +++ b/include/linux/regmap.h
  89. @@ -187,7 +187,7 @@ struct reg_sequence {
  90. pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
  91. })
  92. -#ifdef CONFIG_REGMAP
  93. +#if IS_REACHABLE(CONFIG_REGMAP)
  94. enum regmap_endian {
  95. /* Unspecified -> 0 -> Backwards compatible default */