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authorMark Brown <broonie@kernel.org>2021-06-23 16:31:14 +0100
committerMark Brown <broonie@kernel.org>2021-06-23 16:31:14 +0100
commit8cc802bd75fbf840635e7d4d48050bbcab4d938d (patch)
tree4d7983db2b66d416dcf2deb7b4c53f6ceb5b7f0d /include/linux/const.h
parentf5e2d697d3cbd6d20684eddd3e280809c30e37a1 (diff)
parent8e0eb2fb5c0732a6fa53f2df7079754152857c24 (diff)
Merge series "ASoC: tlv320aic32x4: Add support for TAS2505" from Claudius Heine <ch@denx.de>:
Hi, this is v2 from my patchset that add support for the TAS2505 to the tlv320aic32x4 driver. kind regards, Claudius Changes from v1: - clarified commit message of first patch, which add the type value to the struct - removed unnecessary code to put and get speaker volume - removed 'Gain' from 'HP Driver Playback Volume' control - fixed rebase issues Claudius Heine (3): ASoC: tlv320aic32x4: add type to device private data struct ASoC: tlv320aic32x4: add support for TAS2505 ASoC: tlv320aic32x4: dt-bindings: add TAS2505 to compatible .../bindings/sound/tlv320aic32x4.txt | 1 + sound/soc/codecs/tlv320aic32x4-i2c.c | 22 ++- sound/soc/codecs/tlv320aic32x4-spi.c | 23 ++- sound/soc/codecs/tlv320aic32x4.c | 139 +++++++++++++++++- sound/soc/codecs/tlv320aic32x4.h | 10 ++ 5 files changed, 186 insertions(+), 9 deletions(-) base-commit: 70585216fe7730d9fb5453d3e2804e149d0fe201 -- 2.32.0
Diffstat (limited to 'include/linux/const.h')
-rw-r--r--include/linux/const.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/const.h b/include/linux/const.h
index 81b8aae5a855..435ddd72d2c4 100644
--- a/include/linux/const.h
+++ b/include/linux/const.h
@@ -3,4 +3,12 @@
#include <vdso/const.h>
+/*
+ * This returns a constant expression while determining if an argument is
+ * a constant expression, most importantly without evaluating the argument.
+ * Glory to Martin Uecker <Martin.Uecker@med.uni-goettingen.de>
+ */
+#define __is_constexpr(x) \
+ (sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8)))
+
#endif /* _LINUX_CONST_H */