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-rw-r--r--drivers/memory/tegra/mc.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index 4a750da1c12a..deb6e65b59af 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c
@@ -755,6 +755,43 @@ const char *const tegra_mc_error_names[8] = {
[6] = "SMMU translation error",
};
+struct icc_node *tegra_mc_icc_xlate(struct of_phandle_args *spec, void *data)
+{
+ struct tegra_mc *mc = icc_provider_to_tegra_mc(data);
+ struct icc_node *node;
+
+ list_for_each_entry(node, &mc->provider.nodes, node_list) {
+ if (node->id == spec->args[0])
+ return node;
+ }
+
+ /*
+ * If a client driver calls devm_of_icc_get() before the MC driver
+ * is probed, then return EPROBE_DEFER to the client driver.
+ */
+ return ERR_PTR(-EPROBE_DEFER);
+}
+
+static int tegra_mc_icc_get(struct icc_node *node, u32 *average, u32 *peak)
+{
+ *average = 0;
+ *peak = 0;
+
+ return 0;
+}
+
+static int tegra_mc_icc_set(struct icc_node *src, struct icc_node *dst)
+{
+ return 0;
+}
+
+const struct tegra_mc_icc_ops tegra_mc_icc_ops = {
+ .xlate = tegra_mc_icc_xlate,
+ .aggregate = icc_std_aggregate,
+ .get_bw = tegra_mc_icc_get,
+ .set = tegra_mc_icc_set,
+};
+
/*
* Memory Controller (MC) has few Memory Clients that are issuing memory
* bandwidth allocation requests to the MC interconnect provider. The MC