diff options
Diffstat (limited to 'drivers/platform/x86/intel/ifs/sysfs.c')
| -rw-r--r-- | drivers/platform/x86/intel/ifs/sysfs.c | 41 |
1 files changed, 25 insertions, 16 deletions
diff --git a/drivers/platform/x86/intel/ifs/sysfs.c b/drivers/platform/x86/intel/ifs/sysfs.c index 37d8380d6fa8..ee636a76b083 100644 --- a/drivers/platform/x86/intel/ifs/sysfs.c +++ b/drivers/platform/x86/intel/ifs/sysfs.c @@ -13,7 +13,7 @@ * Protects against simultaneous tests on multiple cores, or * reloading can file while a test is in progress */ -DEFINE_SEMAPHORE(ifs_sem); +static DEFINE_SEMAPHORE(ifs_sem); /* * The sysfs interface to check additional details of last test @@ -87,33 +87,42 @@ static ssize_t run_test_store(struct device *dev, static DEVICE_ATTR_WO(run_test); -/* - * Reload the IFS image. When user wants to install new IFS image - */ -static ssize_t reload_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t current_batch_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct ifs_data *ifsd = ifs_get_data(dev); - bool res; - + unsigned int cur_batch; + int rc; - if (kstrtobool(buf, &res)) + rc = kstrtouint(buf, 0, &cur_batch); + if (rc < 0 || cur_batch > 0xff) return -EINVAL; - if (!res) - return count; if (down_interruptible(&ifs_sem)) return -EINTR; - ifs_load_firmware(dev); + ifsd->cur_batch = cur_batch; + + rc = ifs_load_firmware(dev); up(&ifs_sem); - return ifsd->loaded ? count : -ENODEV; + return (rc == 0) ? count : rc; +} + +static ssize_t current_batch_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct ifs_data *ifsd = ifs_get_data(dev); + + if (!ifsd->loaded) + return sysfs_emit(buf, "none\n"); + else + return sysfs_emit(buf, "0x%02x\n", ifsd->cur_batch); } -static DEVICE_ATTR_WO(reload); +static DEVICE_ATTR_RW(current_batch); /* * Display currently loaded IFS image version. @@ -136,7 +145,7 @@ static struct attribute *plat_ifs_attrs[] = { &dev_attr_details.attr, &dev_attr_status.attr, &dev_attr_run_test.attr, - &dev_attr_reload.attr, + &dev_attr_current_batch.attr, &dev_attr_image_version.attr, NULL }; |