sh: intc: Provide sysdev name for intc controllers.

Presently the sysdevs are simply numbered based on the list position,
without having any direct way of figuring out which controller these are
actually mapping to. This provides a name attr for mapping out the chip
name.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c
index f43850527645dedc863eeba5e0fccf4b1e6cedc2..b605f7e478d6728491d3fe383cf17451e5c9a9cf 100644 (file)
--- a/drivers/sh/intc.c
+++ b/drivers/sh/intc.c
@@ -1034,6 +1034,18 @@ err0:
        return -ENOMEM;
 }
 
+static ssize_t
+show_intc_name(struct sys_device *dev, struct sysdev_attribute *attr, char *buf)
+{
+       struct intc_desc_int *d;
+
+       d = container_of(dev, struct intc_desc_int, sysdev);
+
+       return sprintf(buf, "%s\n", d->chip.name);
+}
+
+static SYSDEV_ATTR(name, S_IRUGO, show_intc_name, NULL);
+
 static int intc_suspend(struct sys_device *dev, pm_message_t state)
 {
        struct intc_desc_int *d;
@@ -1098,8 +1110,12 @@ static int __init register_intc_sysdevs(void)
                        d->sysdev.id = id;
                        d->sysdev.cls = &intc_sysdev_class;
                        error = sysdev_register(&d->sysdev);
+                       if (error == 0)
+                               error = sysdev_create_file(&d->sysdev,
+                                                          &attr_name);
                        if (error)
                                break;
+
                        id++;
                }
        }