add support 4g -- >ppp

hc

2023-11-24 2b26ab132d1b33b91c84c6d732456200e8c5ee77

 kernel/drivers/extcon/extcon.c
..
..
@@ -158,6 +158,11 @@
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 		.id = EXTCON_DISP_HDMI,
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 		.name = "HDMI",
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 	},
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+	[EXTCON_DISP_HDMI_AUDIO] = {
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+		.type = EXTCON_TYPE_DISP,
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+		.id = EXTCON_DISP_HDMI_AUDIO,
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+		.name = "HDMI-AUDIO",
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+	},
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 	[EXTCON_DISP_MHL] = {
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 		.type = EXTCON_TYPE_DISP,
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 		.id = EXTCON_DISP_MHL,