1 files changed, 52 insertions, 13 deletions

diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c
index 3f8e6f0b7eb5..e3f06672fd6d 100644
--- a/sound/soc/intel/skylake/skl-nhlt.c
+++ b/sound/soc/intel/skylake/skl-nhlt.c
@@ -24,8 +24,6 @@
 static u8 OSC_UUID[16] = {0x6E, 0x88, 0x9F, 0xA6, 0xEB, 0x6C, 0x94, 0x45,
 				0xA4, 0x1F, 0x7B, 0x5D, 0xCE, 0x24, 0xC5, 0x53};
 
-#define DSDT_NHLT_PATH "\\_SB.PCI0.HDAS"
-
 struct nhlt_acpi_table *skl_nhlt_init(struct device *dev)
 {
 	acpi_handle handle;
@@ -33,8 +31,9 @@ struct nhlt_acpi_table *skl_nhlt_init(struct device *dev)
 	struct nhlt_resource_desc  *nhlt_ptr = NULL;
 	struct nhlt_acpi_table *nhlt_table = NULL;
 
-	if (ACPI_FAILURE(acpi_get_handle(NULL, DSDT_NHLT_PATH, &handle))) {
-		dev_err(dev, "Requested NHLT device not found\n");
+	handle = ACPI_HANDLE(dev);
+	if (!handle) {
+		dev_err(dev, "Didn't find ACPI_HANDLE\n");
 		return NULL;
 	}
 
@@ -102,14 +101,16 @@ static void dump_config(struct device *dev, u32 instance_id, u8 linktype,
 }
 
 static bool skl_check_ep_match(struct device *dev, struct nhlt_endpoint *epnt,
-				u32 instance_id, u8 link_type, u8 dirn)
+		u32 instance_id, u8 link_type, u8 dirn, u8 dev_type)
 {
-	dev_dbg(dev, "vbus_id=%d link_type=%d dir=%d\n",
-		epnt->virtual_bus_id, epnt->linktype, epnt->direction);
+	dev_dbg(dev, "vbus_id=%d link_type=%d dir=%d dev_type = %d\n",
+			epnt->virtual_bus_id, epnt->linktype,
+			epnt->direction, epnt->device_type);
 
 	if ((epnt->virtual_bus_id == instance_id) &&
 			(epnt->linktype == link_type) &&
-			(epnt->direction == dirn))
+			(epnt->direction == dirn) &&
+			(epnt->device_type == dev_type))
 		return true;
 	else
 		return false;
@@ -117,7 +118,8 @@ static bool skl_check_ep_match(struct device *dev, struct nhlt_endpoint *epnt,
 
 struct nhlt_specific_cfg
 *skl_get_ep_blob(struct skl *skl, u32 instance, u8 link_type,
-			u8 s_fmt, u8 num_ch, u32 s_rate, u8 dirn)
+			u8 s_fmt, u8 num_ch, u32 s_rate,
+			u8 dirn, u8 dev_type)
 {
 	struct nhlt_fmt *fmt;
 	struct nhlt_endpoint *epnt;
@@ -135,7 +137,8 @@ struct nhlt_specific_cfg
 	dev_dbg(dev, "endpoint count =%d\n", nhlt->endpoint_count);
 
 	for (j = 0; j < nhlt->endpoint_count; j++) {
-		if (skl_check_ep_match(dev, epnt, instance, link_type, dirn)) {
+		if (skl_check_ep_match(dev, epnt, instance, link_type,
+						dirn, dev_type)) {
 			fmt = (struct nhlt_fmt *)(epnt->config.caps +
 						 epnt->config.size);
 			sp_config = skl_get_specific_cfg(dev, fmt, num_ch,
@@ -189,9 +192,9 @@ int skl_get_dmic_geo(struct skl *skl)
 	return dmic_geo;
 }
 
-static void skl_nhlt_trim_space(struct skl *skl)
+static void skl_nhlt_trim_space(char *trim)
 {
-	char *s = skl->tplg_name;
+	char *s = trim;
 	int cnt;
 	int i;
 
@@ -218,7 +221,43 @@ int skl_nhlt_update_topology_bin(struct skl *skl)
 		skl->pci_id, nhlt->header.oem_id, nhlt->header.oem_table_id,
 		nhlt->header.oem_revision, "-tplg.bin");
 
-	skl_nhlt_trim_space(skl);
+	skl_nhlt_trim_space(skl->tplg_name);
+
+	return 0;
+}
+
+static ssize_t skl_nhlt_platform_id_show(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	struct pci_dev *pci = to_pci_dev(dev);
+	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
+	struct skl *skl = ebus_to_skl(ebus);
+	struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
+	char platform_id[32];
+
+	sprintf(platform_id, "%x-%.6s-%.8s-%d", skl->pci_id,
+			nhlt->header.oem_id, nhlt->header.oem_table_id,
+			nhlt->header.oem_revision);
+
+	skl_nhlt_trim_space(platform_id);
+	return sprintf(buf, "%s\n", platform_id);
+}
+
+static DEVICE_ATTR(platform_id, 0444, skl_nhlt_platform_id_show, NULL);
+
+int skl_nhlt_create_sysfs(struct skl *skl)
+{
+	struct device *dev = &skl->pci->dev;
+
+	if (sysfs_create_file(&dev->kobj, &dev_attr_platform_id.attr))
+		dev_warn(dev, "Error creating sysfs entry\n");
 
 	return 0;
 }
+
+void skl_nhlt_remove_sysfs(struct skl *skl)
+{
+	struct device *dev = &skl->pci->dev;
+
+	sysfs_remove_file(&dev->kobj, &dev_attr_platform_id.attr);
+}