ASoC: acpi: define common interface for machine driver configuration (8679284b) · Commits · 戴 / test

The machine drivers may need information provided by the platform driver. Currently the information is passed using pdata specific to each plaform driver. This prevents other drivers, such as SOF, from reusing machine drivers directly. Add a new structure which contains the required fields. This proposal requires a bit more work on the platform side but this generic interface helps reuse code directly. Reviewed-by:

Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:

Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by:

Mark Brown <broonie@kernel.org>

include/sound/soc-acpi.h

+14 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,19 @@ snd_soc_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN],
		struct snd_soc_acpi_mach *
		snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines);

		/**
		* snd_soc_acpi_mach_params: interface for machine driver configuration
		*
		* @acpi_ipc_irq_index: used for BYT-CR detection
		* @platform: string used for HDaudio codec support
		* @codec_mask: used for HDAudio support
		*/
		struct snd_soc_acpi_mach_params {
		u32 acpi_ipc_irq_index;
		const char *platform;
		u32 codec_mask;
		};

		/**
		* snd_soc_acpi_mach: ACPI-based machine descriptor. Most of the fields are
		* related to the hardware, except for the firmware and topology file names.
		@@ -68,6 +81,7 @@ struct snd_soc_acpi_mach {
		struct snd_soc_acpi_mach * (machine_quirk)(void arg);
		const void *quirk_data;
		void *pdata;
		struct snd_soc_acpi_mach_params mach_params;
		const char *sof_fw_filename;
		const char *sof_tplg_filename;
		const char *asoc_plat_name;

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