[PATCH V3 16/20] cxl/mem: Preserve cxl root decoder during mem probe

[Neeraj Kumar]

Saved root decoder info is required for cxl region persistency

Signed-off-by: Neeraj Kumar <s.nee...@samsung.com>
---
 drivers/cxl/cxlmem.h | 1 +
 drivers/cxl/mem.c    | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h
index 434031a0c1f7..25cb115b72bd 100644
--- a/drivers/cxl/cxlmem.h
+++ b/drivers/cxl/cxlmem.h
@@ -59,6 +59,7 @@ struct cxl_memdev {
        struct cxl_nvdimm_bridge *cxl_nvb;
        struct cxl_nvdimm *cxl_nvd;
        struct cxl_port *endpoint;
+       struct cxl_root_decoder *cxlrd;
        int id;
        int depth;
        u8 scrub_cycle;
diff --git a/drivers/cxl/mem.c b/drivers/cxl/mem.c
index 54501616ff09..1a0da7253a24 100644
--- a/drivers/cxl/mem.c
+++ b/drivers/cxl/mem.c
@@ -152,6 +152,8 @@ static int cxl_mem_probe(struct device *dev)
                return -ENXIO;
        }
 
+       cxlmd->cxlrd = cxl_find_root_decoder_by_port(parent_port);
+
        if (dport->rch)
                endpoint_parent = parent_port->uport_dev;
        else
-- 
2.34.1