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| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-01-31 18:12:57 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-03-31 20:36:05 +0200 |
| commit | 65cc1a59d192be1df33633d3fe668a1e3e0edc36 (patch) | |
| tree | 0d9b421633860e02720fde8bc6db10e4ef10e7ae /arch/arm/mach-at91/Makefile | |
| parent | 9e07c3ce2c1054af503b0cb5860df0f8c8ee2619 (diff) | |
ARM: at91: pm: Use struct at91_pm_data in pm_suspend.S
The number of register we can safely pass to at91_pm_suspend_in_sram is
limited. Instead, pass the address to the at91_pm_data structure.
The offsets are automatically generated to avoid hardcoding them.
Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'arch/arm/mach-at91/Makefile')
| -rw-r--r-- | arch/arm/mach-at91/Makefile | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index c5bbf8bb8c0f..858ef14f961c 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -18,3 +18,36 @@ endif ifeq ($(CONFIG_PM_DEBUG),y) CFLAGS_pm.o += -DDEBUG endif + +# Default sed regexp - multiline due to syntax constraints +define sed-y + "/^->/{s:->#\(.*\):/* \1 */:; \ + s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:->::; p;}" +endef + +# Use filechk to avoid rebuilds when a header changes, but the resulting file +# does not +define filechk_offsets + (set -e; \ + echo "#ifndef $2"; \ + echo "#define $2"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-y); \ + echo ""; \ + echo "#endif" ) +endef + +arch/arm/mach-at91/pm_data-offsets.s: arch/arm/mach-at91/pm_data-offsets.c + $(call if_changed_dep,cc_s_c) + +include/generated/at91_pm_data-offsets.h: arch/arm/mach-at91/pm_data-offsets.s FORCE + $(call filechk,offsets,__PM_DATA_OFFSETS_H__) + +arch/arm/mach-at91/pm_suspend.o: include/generated/at91_pm_data-offsets.h |