add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/sound/drivers/opl4/opl4_seq.c
..
..
@@ -100,7 +100,7 @@
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 	return 0;
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 }
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-static struct snd_midi_op opl4_ops = {
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+static const struct snd_midi_op opl4_ops = {
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 	.note_on =		snd_opl4_note_on,
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 	.note_off =		snd_opl4_note_off,
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 	.note_terminate =	snd_opl4_terminate_note,