1 files changed, 40 insertions, 0 deletions
diff --git a/board/gaelin/pwm.c b/board/gaelin/pwm.c
new file mode 100644
index 0000000000..3d4335f453
--- /dev/null
+++ b/board/gaelin/pwm.c
@@ -0,0 +1,40 @@
+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "common.h"
+
+#include "compile_time_macros.h"
+#include "hooks.h"
+#include "pwm.h"
+#include "pwm_chip.h"
+
+const struct pwm_t pwm_channels[] = {
+	[PWM_CH_LED_GREEN] = { .channel = 0,
+			       .flags = PWM_CONFIG_ACTIVE_LOW |
+					PWM_CONFIG_DSLEEP,
+			       .freq = 2000 },
+	[PWM_CH_FAN] = { .channel = 5,
+			 .flags = PWM_CONFIG_OPEN_DRAIN | PWM_CONFIG_DSLEEP,
+			 .freq = 1000 },
+	[PWM_CH_LED_RED] = { .channel = 2,
+			     .flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
+			     .freq = 2000 },
+};
+BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
+
+static void board_pwm_init(void)
+{
+	/*
+	 * TODO(b/197478860): Turn on the fan at 100% by default
+	 * We need to find tune the fan speed according to the
+	 * thermal sensor value.
+	 */
+	pwm_enable(PWM_CH_FAN, 1);
+	pwm_set_duty(PWM_CH_FAN, 100);
+
+	pwm_enable(PWM_CH_LED_RED, 1);
+	pwm_enable(PWM_CH_LED_GREEN, 1);
+}
+DECLARE_HOOK(HOOK_INIT, board_pwm_init, HOOK_PRIO_DEFAULT);