[PATCH 1/2] cxl/core/port: Fix / relax decoder target enumeration

[Dan Williams]

If the decoder is not presently active the target_list may not be
accurate. Perform a best effort mapping and assume that it will be fixed
up when the decoder is enabled.

Signed-off-by: Dan Williams <dan.j.willi...@intel.com>
---
 drivers/cxl/acpi.c      |    2 +-
 drivers/cxl/core/port.c |    5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/cxl/acpi.c b/drivers/cxl/acpi.c
index df6691d0a6d0..f64d98bfcb3b 100644
--- a/drivers/cxl/acpi.c
+++ b/drivers/cxl/acpi.c
@@ -15,7 +15,7 @@
 
 static unsigned long cfmws_to_decoder_flags(int restrictions)
 {
-       unsigned long flags = 0;
+       unsigned long flags = CXL_DECODER_F_ENABLE;
 
        if (restrictions & ACPI_CEDT_CFMWS_RESTRICT_TYPE2)
                flags |= CXL_DECODER_F_TYPE2;
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index 224a4853a33e..e75e0d4fb894 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -1263,8 +1263,11 @@ int cxl_decoder_add_locked(struct cxl_decoder *cxld, int 
*target_map)
        port = to_cxl_port(cxld->dev.parent);
        if (!is_endpoint_decoder(dev)) {
                rc = decoder_populate_targets(cxld, port, target_map);
-               if (rc)
+               if (rc && (cxld->flags & CXL_DECODER_F_ENABLE)) {
+                       dev_err(&port->dev,
+                               "Failed to populate active decoder targets\n");
                        return rc;
+               }
        }
 
        rc = dev_set_name(dev, "decoder%d.%d", port->id, cxld->id);