From: Dan Williams Date: Fri, 29 Apr 2016 01:18:05 +0000 (-0700) Subject: nfit: add sysfs dimm 'family' and 'dsm_mask' attributes X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a94e3fbe4d53d4e512c4ea88a475e605b8d8dccb;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git nfit: add sysfs dimm 'family' and 'dsm_mask' attributes Communicate the command format and supported functions to userspace tooling. Signed-off-by: Dan Williams --- diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c index ad4fc869fbb7..bf2d7a20d9d7 100644 --- a/drivers/acpi/nfit.c +++ b/drivers/acpi/nfit.c @@ -897,6 +897,30 @@ static ssize_t serial_show(struct device *dev, } static DEVICE_ATTR_RO(serial); +static ssize_t family_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm); + + if (nfit_mem->family < 0) + return -ENXIO; + return sprintf(buf, "%d\n", nfit_mem->family); +} +static DEVICE_ATTR_RO(family); + +static ssize_t dsm_mask_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + struct nfit_mem *nfit_mem = nvdimm_provider_data(nvdimm); + + if (nfit_mem->family < 0) + return -ENXIO; + return sprintf(buf, "%#lx\n", nfit_mem->dsm_mask); +} +static DEVICE_ATTR_RO(dsm_mask); + static ssize_t flags_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -920,6 +944,8 @@ static struct attribute *acpi_nfit_dimm_attributes[] = { &dev_attr_serial.attr, &dev_attr_rev_id.attr, &dev_attr_flags.attr, + &dev_attr_family.attr, + &dev_attr_dsm_mask.attr, NULL, };