diff options
Diffstat (limited to 'drivers/bus/fsl-mc/fsl-mc-bus.c')
-rw-r--r-- | drivers/bus/fsl-mc/fsl-mc-bus.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c index ee3e6252ffc3..70f4b69556f5 100644 --- a/drivers/bus/fsl-mc/fsl-mc-bus.c +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c @@ -241,8 +241,63 @@ static ssize_t rescan_store(struct bus_type *bus, } static BUS_ATTR_WO(rescan); +static int fsl_mc_bus_set_autorescan(struct device *dev, void *data) +{ + struct fsl_mc_device *root_mc_dev; + unsigned long val; + char *buf = data; + + if (!fsl_mc_is_root_dprc(dev)) + goto exit; + + root_mc_dev = to_fsl_mc_device(dev); + + if (kstrtoul(buf, 0, &val) < 0) + return -EINVAL; + + if (val) + enable_dprc_irq(root_mc_dev); + else + disable_dprc_irq(root_mc_dev); + +exit: + return 0; +} + +static int fsl_mc_bus_get_autorescan(struct device *dev, void *data) +{ + struct fsl_mc_device *root_mc_dev; + char *buf = data; + + if (!fsl_mc_is_root_dprc(dev)) + goto exit; + + root_mc_dev = to_fsl_mc_device(dev); + + sprintf(buf, "%d\n", get_dprc_irq_state(root_mc_dev)); +exit: + return 0; +} + +static ssize_t autorescan_store(struct bus_type *bus, + const char *buf, size_t count) +{ + bus_for_each_dev(bus, NULL, (void *)buf, fsl_mc_bus_set_autorescan); + + return count; +} + +static ssize_t autorescan_show(struct bus_type *bus, char *buf) +{ + bus_for_each_dev(bus, NULL, (void *)buf, fsl_mc_bus_get_autorescan); + return strlen(buf); +} + +static BUS_ATTR_RW(autorescan); + static struct attribute *fsl_mc_bus_attrs[] = { &bus_attr_rescan.attr, + &bus_attr_autorescan.attr, NULL, }; |