hw/imc: Update IMC code to use dt_find_by_name_before_addr for checking dt nodes

The nest IMC (In Memory Collection) Performance Monitoring
Unit(PMU) node names are saved in nest_pmus[] array in the
"hw/imc.c" IMC code. Not all the IMC PMUs listed in the device
tree may be available. Nest IMC PMU names along with their
bit values is represented in imc availability vector.
The nest_pmus[] array is used to remove the unavailable nodes
by checking this vector.

To check node availability, code was using "dt_find_by_substr".
But since the node names have format like: "name@offset",
dt_find_by_name doesn't return the expected result. Fix this
by using dt_find_by_name_before_addr. Also, update the char array
to use correct node names.

Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Reza Arbab <arbab@linux.ibm.com>

1 files changed, 9 insertions, 9 deletions

diff --git a/hw/imc.c b/hw/imc.c
index 97e0809..73f25da 100644
--- a/hw/imc.c
+++ b/hw/imc.c
@@ -67,14 +67,14 @@ static char const *nest_pmus[] = {
 	"mba5",
 	"mba6",
 	"mba7",
-	"cen0",
-	"cen1",
-	"cen2",
-	"cen3",
-	"cen4",
-	"cen5",
-	"cen6",
-	"cen7",
+	"centaur0",
+	"centaur1",
+	"centaur2",
+	"centaur3",
+	"centaur4",
+	"centaur5",
+	"centaur6",
+	"centaur7",
 	"xlink0",
 	"xlink1",
 	"xlink2",
@@ -412,7 +412,7 @@ static void disable_unavailable_units(struct dt_node *dev)
 	for (i = 0; i < ARRAY_SIZE(nest_pmus); i++) {
 		if (!(PPC_BITMASK(i, i) & avl_vec)) {
 			/* Check if the device node exists */
-			target = dt_find_by_name(dev, nest_pmus[i]);
+			target = dt_find_by_name_before_addr(dev, nest_pmus[i]);
 			if (!target)
 				continue;
 			/* Remove the device node */