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| author | Mark Brown <broonie@kernel.org> | 2026-05-18 17:44:18 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-05-18 17:44:18 +0100 |
| commit | e76ccf19e22a74309bb9c14e64bb97ade3c5fee8 (patch) | |
| tree | 982c6d9aa2aec6ef910ebd30a313eab8d2275761 /scripts | |
| parent | e38353138a091554242f0a3da883250fdc4696b5 (diff) | |
| parent | 5bd8c4b7d3bbe03a56f915f5da95330cb74fa3f6 (diff) | |
ASoC: Add support for GPIOs driven amplifiers
Herve Codina <herve.codina@bootlin.com> says:
On some embedded system boards, audio amplifiers are designed using
discrete components such as op-amp, several resistors and switches to
either adjust the gain (switching resistors) or fully switch the
audio signal path (mute and/or bypass features).
Those switches are usually driven by simple GPIOs.
This kind of amplifiers are not handled in ASoC and the fallback is to
let the user-space handle those GPIOs out of the ALSA world.
In order to have those kind of amplifiers fully integrated in the audio
stack, this series introduces the audio-gpio-amp to handle them.
This new ASoC component allows to have the amplifiers seen as ASoC
auxiliarty devices and so it allows to control them through audio mixer
controls.
In order to ease the review, I choose to split modifications related
to the merge of the gpio-audio-amp part into the simple-amplfier driver
in several commits.
Link: https://patch.msgid.link/20260513081702.317117-1-herve.codina@bootlin.com
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/gcc-plugins/gcc-common.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/scripts/gcc-plugins/gcc-common.h b/scripts/gcc-plugins/gcc-common.h index 8f1b3500f8e2..abb1964c44d4 100644 --- a/scripts/gcc-plugins/gcc-common.h +++ b/scripts/gcc-plugins/gcc-common.h @@ -309,7 +309,9 @@ typedef const gimple *const_gimple_ptr; #define gimple gimple_ptr #define const_gimple const_gimple_ptr #undef CONST_CAST_GIMPLE -#define CONST_CAST_GIMPLE(X) CONST_CAST(gimple, (X)) +#define CONST_CAST_GIMPLE(X) const_cast<gimple>((X)) +#undef CONST_CAST_TREE +#define CONST_CAST_TREE(X) const_cast<tree>((X)) /* gimple related */ static inline gimple gimple_build_assign_with_ops(enum tree_code subcode, tree lhs, tree op1, tree op2 MEM_STAT_DECL) |