68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
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// Copyright(c) 2024 Intel Corporation
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/*
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* The MIPI SDCA specification is available for public downloads at
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* https://www.mipi.org/mipi-sdca-v1-0-download
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*/
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#include <linux/acpi.h>
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#include <linux/soundwire/sdw.h>
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#include <sound/sdca.h>
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#include <sound/sdca_function.h>
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void sdca_lookup_interface_revision(struct sdw_slave *slave)
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{
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struct fwnode_handle *fwnode = slave->dev.fwnode;
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/*
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* if this property is not present, then the sdca_interface_revision will
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* remain zero, which will be considered as 'not defined' or 'invalid'.
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*/
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fwnode_property_read_u32(fwnode, "mipi-sdw-sdca-interface-revision",
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&slave->sdca_data.interface_revision);
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}
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EXPORT_SYMBOL_NS(sdca_lookup_interface_revision, "SND_SOC_SDCA");
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static bool sdca_device_quirk_rt712_vb(struct sdw_slave *slave)
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{
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struct sdw_slave_id *id = &slave->id;
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int i;
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/*
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* The RT712_VA relies on the v06r04 draft, and the
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* RT712_VB on a more recent v08r01 draft.
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*/
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if (slave->sdca_data.interface_revision < 0x0801)
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return false;
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if (id->mfg_id != 0x025d)
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return false;
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if (id->part_id != 0x712 &&
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id->part_id != 0x713 &&
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id->part_id != 0x716 &&
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id->part_id != 0x717)
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return false;
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for (i = 0; i < slave->sdca_data.num_functions; i++) {
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if (slave->sdca_data.sdca_func[i].type ==
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SDCA_FUNCTION_TYPE_SMART_MIC)
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return true;
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}
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return false;
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}
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bool sdca_device_quirk_match(struct sdw_slave *slave, enum sdca_quirk quirk)
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{
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switch (quirk) {
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case SDCA_QUIRKS_RT712_VB:
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return sdca_device_quirk_rt712_vb(slave);
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default:
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break;
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}
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return false;
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}
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EXPORT_SYMBOL_NS(sdca_device_quirk_match, "SND_SOC_SDCA");
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