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ASoC: Intel: sst: Support LPE0F28 ACPI HID

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Some old Bay Trail tablets which shipped with Android as factory OS
have the SST/LPE audio engine described by an ACPI device with a
HID (Hardware-ID) of LPE0F28 instead of 80860F28.

Add support for this. Note this uses a new sst_res_info for just
the LPE0F28 case because it has a different layout for the IO-mem ACPI
resources then the 80860F28.

An example of a tablet which needs this is the Vexia EDU ATLA 10 tablet,
which has been distributed to schools in the Spanish Andalucía region.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241025090221.52198-1-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Hans de Goede 2024-10-25 11:02:21 +02:00 committed by Mark Brown
parent 0107f28f13
commit 6668610b4d
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 59 additions and 9 deletions
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4
sound/hda/intel-dsp-config.c
View File

@ -721,6 +721,10 @@ static const struct config_entry acpi_config_table[] = {
#if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) || \
IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
/* BayTrail */
{
.flags = FLAG_SST_OR_SOF_BYT,
.acpi_hid = "LPE0F28",
},
{
.flags = FLAG_SST_OR_SOF_BYT,
.acpi_hid = "80860F28",

64
sound/soc/intel/atom/sst/sst_acpi.c
View File

@ -125,6 +125,28 @@ static const struct sst_res_info bytcr_res_info = {
.acpi_ipc_irq_index = 0
};
/* For "LPE0F28" ACPI device found on some Android factory OS models */
static const struct sst_res_info lpe8086_res_info = {
.shim_offset = 0x140000,
.shim_size = 0x000100,
.shim_phy_addr = SST_BYT_SHIM_PHY_ADDR,
.ssp0_offset = 0xa0000,
.ssp0_size = 0x1000,
.dma0_offset = 0x98000,
.dma0_size = 0x4000,
.dma1_offset = 0x9c000,
.dma1_size = 0x4000,
.iram_offset = 0x0c0000,
.iram_size = 0x14000,
.dram_offset = 0x100000,
.dram_size = 0x28000,
.mbox_offset = 0x144000,
.mbox_size = 0x1000,
.acpi_lpe_res_index = 1,
.acpi_ddr_index = 0,
.acpi_ipc_irq_index = 0
};
static struct sst_platform_info byt_rvp_platform_data = {
.probe_data = &byt_fwparse_info,
.ipc_info = &byt_ipc_info,
@ -268,10 +290,38 @@ static int sst_acpi_probe(struct platform_device *pdev)
mach->pdata = &chv_platform_data;
pdata = mach->pdata;
ret = kstrtouint(id->id, 16, &dev_id);
if (ret < 0) {
dev_err(dev, "Unique device id conversion error: %d\n", ret);
return ret;
if (!strcmp(id->id, "LPE0F28")) {
struct resource *rsrc;
/* Use regular BYT SST PCI VID:PID */
dev_id = 0x80860F28;
byt_rvp_platform_data.res_info = &lpe8086_res_info;
/*
* The "LPE0F28" ACPI device has separate IO-mem resources for:
* DDR, SHIM, MBOX, IRAM, DRAM, CFG
* None of which covers the entire LPE base address range.
* lpe8086_res_info.acpi_lpe_res_index points to the SHIM.
* Patch this to cover the entire base address range as expected
* by sst_platform_get_resources().
*/
rsrc = platform_get_resource(pdev, IORESOURCE_MEM,
pdata->res_info->acpi_lpe_res_index);
if (!rsrc) {
dev_err(ctx->dev, "Invalid SHIM base\n");
return -EIO;
}
rsrc->start -= pdata->res_info->shim_offset;
rsrc->end = rsrc->start + 0x200000 - 1;
} else {
ret = kstrtouint(id->id, 16, &dev_id);
if (ret < 0) {
dev_err(dev, "Unique device id conversion error: %d\n", ret);
return ret;
}
if (soc_intel_is_byt_cr(pdev))
byt_rvp_platform_data.res_info = &bytcr_res_info;
}
dev_dbg(dev, "ACPI device id: %x\n", dev_id);
@ -280,11 +330,6 @@ static int sst_acpi_probe(struct platform_device *pdev)
if (ret < 0)
return ret;
if (soc_intel_is_byt_cr(pdev)) {
/* override resource info */
byt_rvp_platform_data.res_info = &bytcr_res_info;
}
/* update machine parameters */
mach->mach_params.acpi_ipc_irq_index =
pdata->res_info->acpi_ipc_irq_index;
@ -344,6 +389,7 @@ static void sst_acpi_remove(struct platform_device *pdev)
}
static const struct acpi_device_id sst_acpi_ids[] = {
{ "LPE0F28", (unsigned long)&snd_soc_acpi_intel_baytrail_machines},
{ "80860F28", (unsigned long)&snd_soc_acpi_intel_baytrail_machines},
{ "808622A8", (unsigned long)&snd_soc_acpi_intel_cherrytrail_machines},
{ },