diff options
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
| -rw-r--r-- | drivers/fpga/fpga-bridge.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c index 80bd8f1b2aa6..f70328543a1a 100644 --- a/drivers/fpga/fpga-bridge.c +++ b/drivers/fpga/fpga-bridge.c @@ -13,6 +13,12 @@ #include <linux/slab.h> #include <linux/spinlock.h> +/* For enabling manual bridge set(enable/disable) function */ +#ifdef CONFIG_DEBUG_KERNEL +#undef DEBUG +#define DEBUG +#endif + static DEFINE_IDA(fpga_bridge_ida); static struct class *fpga_bridge_class; @@ -310,9 +316,33 @@ static ssize_t state_show(struct device *dev, static DEVICE_ATTR_RO(name); static DEVICE_ATTR_RO(state); +#ifdef DEBUG +static ssize_t set_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fpga_bridge *bridge = to_fpga_bridge(dev); + long enable; + int ret; + + ret = kstrtol(buf, 16, &enable); + if (ret) + return ret; + + if (bridge->br_ops && bridge->br_ops->enable_set) + enable = bridge->br_ops->enable_set(bridge, !!enable); + + return count; +} +static DEVICE_ATTR_WO(set); +#endif + static struct attribute *fpga_bridge_attrs[] = { &dev_attr_name.attr, &dev_attr_state.attr, +#ifdef DEBUG + &dev_attr_set.attr, +#endif NULL, }; ATTRIBUTE_GROUPS(fpga_bridge); |