Merge tag 'for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux...

[J-linux.git] / drivers / fpga / fpga-mgr.c

diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
index c1564cf827fe0cf8d92abba39bba703b22e71ee8..a41b07e3788490ef3904b6429cea7bfce4c7e46b 100644 (file)
--- a/drivers/fpga/fpga-mgr.c
+++ b/drivers/fpga/fpga-mgr.c
@@ -406,12 +406,40 @@ static ssize_t state_show(struct device *dev,
        return sprintf(buf, "%s\n", state_str[mgr->state]);
 }
 
        return sprintf(buf, "%s\n", state_str[mgr->state]);
 }
 

+static ssize_t status_show(struct device *dev,
+                          struct device_attribute *attr, char *buf)
+{
+       struct fpga_manager *mgr = to_fpga_manager(dev);
+       u64 status;
+       int len = 0;
+
+       if (!mgr->mops->status)
+               return -ENOENT;
+
+       status = mgr->mops->status(mgr);
+
+       if (status & FPGA_MGR_STATUS_OPERATION_ERR)
+               len += sprintf(buf + len, "reconfig operation error\n");
+       if (status & FPGA_MGR_STATUS_CRC_ERR)
+               len += sprintf(buf + len, "reconfig CRC error\n");
+       if (status & FPGA_MGR_STATUS_INCOMPATIBLE_IMAGE_ERR)
+               len += sprintf(buf + len, "reconfig incompatible image\n");
+       if (status & FPGA_MGR_STATUS_IP_PROTOCOL_ERR)
+               len += sprintf(buf + len, "reconfig IP protocol error\n");
+       if (status & FPGA_MGR_STATUS_FIFO_OVERFLOW_ERR)
+               len += sprintf(buf + len, "reconfig fifo overflow error\n");
+
+       return len;
+}
+

 static DEVICE_ATTR_RO(name);
 static DEVICE_ATTR_RO(state);
 static DEVICE_ATTR_RO(name);
 static DEVICE_ATTR_RO(state);

+static DEVICE_ATTR_RO(status);

 
 static struct attribute *fpga_mgr_attrs[] = {
        &dev_attr_name.attr,
        &dev_attr_state.attr,
 
 static struct attribute *fpga_mgr_attrs[] = {
        &dev_attr_name.attr,
        &dev_attr_state.attr,

+       &dev_attr_status.attr,

        NULL,
 };
 ATTRIBUTE_GROUPS(fpga_mgr);
        NULL,
 };
 ATTRIBUTE_GROUPS(fpga_mgr);