From 0cf5a17159edbebfe3ce2a0ce1dd36bd5809479a Mon Sep 17 00:00:00 2001 From: "Subhransu S. Prusty" Date: Wed, 11 Jan 2017 16:31:02 +0530 Subject: ASoC: Intel: Skylake: Report Platform ID info from NHLT This patch create entry in sysfs file system to report the platform_id = "pci-id-oem_id-oem_table_id-oem_revision" for board identification. Signed-off-by: Subhransu S. Prusty Signed-off-by: Sodhi, VunnyX Signed-off-by: Mark Brown --- sound/soc/intel/skylake/skl-nhlt.c | 42 +++++++++++++++++++++++++++++++++++--- 1 file changed, 39 insertions(+), 3 deletions(-) (limited to 'sound/soc/intel/skylake/skl-nhlt.c') diff --git a/sound/soc/intel/skylake/skl-nhlt.c b/sound/soc/intel/skylake/skl-nhlt.c index 3f8e6f0b7eb5..2710a3704a38 100644 --- a/sound/soc/intel/skylake/skl-nhlt.c +++ b/sound/soc/intel/skylake/skl-nhlt.c @@ -189,9 +189,9 @@ 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 +218,43 @@ 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); +} -- cgit