1 files changed, 43 insertions, 0 deletions
diff --git a/board/volmar/tune_mp2964.c b/board/volmar/tune_mp2964.c
new file mode 100644
index 0000000000..f67caa587e
--- /dev/null
+++ b/board/volmar/tune_mp2964.c
@@ -0,0 +1,43 @@
+/* Copyright 2022 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Tune the MP2964 IMVP9.1 parameters for brya */
+
+#include "common.h"
+#include "compile_time_macros.h"
+#include "console.h"
+#include "hooks.h"
+#include "mp2964.h"
+
+const static struct mp2964_reg_val rail_a[] = {
+	{ MP2964_MFR_ALT_SET,     0xe081 },	/* ALERT_DELAY = 200ns */
+};
+const static struct mp2964_reg_val rail_b[] = {
+	{ MP2964_MFR_ALT_SET,     0xe081 },	/* ALERT_DELAY = 200ns */
+};
+
+static void mp2964_on_startup(void)
+{
+	static int chip_updated;
+	int status;
+
+	if (get_board_id() != 1)
+		return;
+
+	if (chip_updated)
+		return;
+
+	chip_updated = 1;
+
+	ccprintf("%s: attempting to tune PMIC\n", __func__);
+
+	status = mp2964_tune(rail_a, ARRAY_SIZE(rail_a),
+			     rail_b, ARRAY_SIZE(rail_b));
+	if (status != EC_SUCCESS)
+		ccprintf("%s: could not update all settings\n", __func__);
+}
+
+DECLARE_HOOK(HOOK_CHIPSET_STARTUP, mp2964_on_startup,
+	     HOOK_PRIO_FIRST);