[PARISC] display parisc device modalias in sysfs

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index 6274cd268e6..2ca654bd632 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -562,12 +562,23 @@ pa_dev_attr(rev, id.hversion_rev, "0x%x\n");
 pa_dev_attr_id(hversion, "0x%03x\n");
 pa_dev_attr_id(sversion, "0x%05x\n");
 
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct parisc_device *padev = to_parisc_device(dev);
+        struct parisc_device_id *id = &padev->id;
+
+        return sprintf(buf, "parisc:t%02Xhv%04Xrev%02Xsv%08X\n",
+                (u8)id->hw_type, (u16)id->hversion, (u8)id->hversion_rev,
+                (u32)id->sversion);
+}
+
 static struct device_attribute parisc_device_attrs[] = {
         __ATTR_RO(irq),
         __ATTR_RO(hw_type),
         __ATTR_RO(rev),
         __ATTR_RO(hversion),
         __ATTR_RO(sversion),
+        __ATTR_RO(modalias),
         __ATTR_NULL,
 };