[PATCH V2 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.neeraj@xxxxxxxxxxx>
---
 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 751478dfc410..72dfcf4671f2 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