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path: root/drivers/thunderbolt/tmu.c
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Diffstat (limited to 'drivers/thunderbolt/tmu.c')
-rw-r--r--drivers/thunderbolt/tmu.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tmu.c b/drivers/thunderbolt/tmu.c
index e822ab90338b..626aca3124b1 100644
--- a/drivers/thunderbolt/tmu.c
+++ b/drivers/thunderbolt/tmu.c
@@ -742,3 +742,32 @@ void tb_switch_tmu_configure(struct tb_switch *sw,
sw->tmu.unidirectional_request = unidirectional;
sw->tmu.rate_request = rate;
}
+
+static int tb_switch_tmu_config_enable(struct device *dev, void *rate)
+{
+ if (tb_is_switch(dev)) {
+ struct tb_switch *sw = tb_to_switch(dev);
+
+ tb_switch_tmu_configure(sw, *(enum tb_switch_tmu_rate *)rate,
+ tb_switch_is_clx_enabled(sw, TB_CL1));
+ if (tb_switch_tmu_enable(sw))
+ tb_sw_dbg(sw, "fail switching TMU mode for 1st depth router\n");
+ }
+
+ return 0;
+}
+
+/**
+ * tb_switch_enable_tmu_1st_child - Configure and enable TMU for 1st chidren
+ * @sw: The router to configure and enable it's children TMU
+ * @rate: Rate of the TMU to configure the router's chidren to
+ *
+ * Configures and enables the TMU mode of 1st depth children of the specified
+ * router to the specified rate.
+ */
+void tb_switch_enable_tmu_1st_child(struct tb_switch *sw,
+ enum tb_switch_tmu_rate rate)
+{
+ device_for_each_child(&sw->dev, &rate,
+ tb_switch_tmu_config_enable);
+}