ALSA: hda - Add comments to new helper functions (990061c2) · Commits · e / devices / android_kernel_oneplus_sm7250

sound/pci/hda/hda_codec.c

+23 −0

Original line number	Diff line number	Diff line
		@@ -4654,6 +4654,14 @@ static int get_line_pin_attr(unsigned int def_conf)
		return LINE_ATTR_NORMAL;
		}

		/**
		* hda_get_input_pin_label - Give a label for the given input pin
		*
		* When check_location is true, the function checks the pin location
		* for mic and line-in pins, and set an appropriate prefix like "Front",
		* "Rear", "Internal".
		*/

		const char hda_get_input_pin_label(struct hda_codec codec, hda_nid_t pin,
		int check_location)
		{
		@@ -4720,6 +4728,14 @@ static int check_mic_location_need(struct hda_codec *codec,
		return 0;
		}

		/**
		* hda_get_autocfg_input_label - Get a label for the given input
		*
		* Get a label for the given input pin defined by the autocfg item.
		* Unlike hda_get_input_pin_label(), this function checks all inputs
		* defined in autocfg and avoids the redundant mic/line prefix as much as
		* possible.
		*/
		const char hda_get_autocfg_input_label(struct hda_codec codec,
		const struct auto_pin_cfg *cfg,
		int input)
		@@ -4737,6 +4753,13 @@ const char hda_get_autocfg_input_label(struct hda_codec codec,
		}
		EXPORT_SYMBOL_HDA(hda_get_autocfg_input_label);

		/**
		* snd_hda_add_imux_item - Add an item to input_mux
		*
		* When the same label is used already in the existing items, the number
		* suffix is appended to the label. This label index number is stored
		* to type_idx when non-NULL pointer is given.
		*/
		int snd_hda_add_imux_item(struct hda_input_mux imux, const char label,
		int index, int *type_idx)
		{