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Commit 915ae2b9 authored by Naveen M's avatar Naveen M Committed by Mark Brown
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ASoC: Intel: Create a helper to search for matching machine 



Create a helper function to search for a matching machine
based on HID. No functional change

Signed-off-by: default avatarNaveen M <naveen.m@intel.com>
Signed-off-by: default avatarHarsha Priya <harshapriya.n@intel.com>
Acked-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9bf70cd4

sound/soc/intel/common/sst-acpi.h

+3 −0
Original line number Diff line number Diff line
@@ -43,6 +43,9 @@ static inline bool sst_acpi_find_package_from_hid(const u8 hid[ACPI_ID_LEN], 
/* acpi match */

struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);



/* acpi check hid */

bool sst_acpi_check_hid(const u8 hid[ACPI_ID_LEN]);



/* Descriptor for SST ASoC machine driver */

struct sst_acpi_mach {

	/* ACPI ID for the matching machine driver. Audio codec for instance */

sound/soc/intel/common/sst-match-acpi.c

+15 −4
Original line number Diff line number Diff line
@@ -63,15 +63,26 @@ static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level, 
	return AE_OK;

}



bool sst_acpi_check_hid(const u8 hid[ACPI_ID_LEN])

{

	acpi_status status;

	bool found = false;



	status = acpi_get_devices(hid, sst_acpi_mach_match, &found, NULL);



	if (ACPI_FAILURE(status))

		return false;



	return found;

}

EXPORT_SYMBOL_GPL(sst_acpi_check_hid);



struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines)

{

	struct sst_acpi_mach *mach;

	bool found = false;



	for (mach = machines; mach->id[0]; mach++)

		if (ACPI_SUCCESS(acpi_get_devices(mach->id,

						  sst_acpi_mach_match,

						  &found, NULL)) && found)

		if (sst_acpi_check_hid(mach->id) == true)

			return mach;

	return NULL;

}