diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h
index 7a4238a..7909fa1 100644
--- a/drivers/pwm/pwm-lpss.h
+++ b/drivers/pwm/pwm-lpss.h
@@ -1,13 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Intel Low Power Subsystem PWM controller driver
  *
  * Copyright (C) 2014, Intel Corporation
  *
  * Derived from the original pwm-lpss.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __PWM_LPSS_H
@@ -16,13 +13,25 @@
 #include <linux/device.h>
 #include <linux/pwm.h>
 
-struct pwm_lpss_chip;
+#define MAX_PWMS			4
+
+struct pwm_lpss_chip {
+	struct pwm_chip chip;
+	void __iomem *regs;
+	const struct pwm_lpss_boardinfo *info;
+	u32 saved_ctrl[MAX_PWMS];
+};
 
 struct pwm_lpss_boardinfo {
 	unsigned long clk_rate;
 	unsigned int npwm;
 	unsigned long base_unit_bits;
 	bool bypass;
+	/*
+	 * On some devices the _PS0/_PS3 AML code of the GPU (GFX0) device
+	 * messes with the PWM0 controllers state,
+	 */
+	bool other_devices_aml_touches_pwm_regs;
 };
 
 struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,