SPDX: Convert all of our single license tags to Linux Kernel style

[oweals/u-boot.git] / arch / arm / include / asm / arch-tegra20 / pwm.h

diff --git a/arch/arm/include/asm/arch-tegra20/pwm.h b/arch/arm/include/asm/arch-tegra20/pwm.h
index 8e7397d0e5acd9f8a0e06dfcafc88fc568769571..9467617b56b7119b15c09b5193442150d922ace6 100644 (file)
--- a/arch/arm/include/asm/arch-tegra20/pwm.h
+++ b/arch/arm/include/asm/arch-tegra20/pwm.h
@@ -1,60 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Tegra pulse width frequency modulator definitions
  *
  * Copyright (c) 2011 The Chromium OS Authors.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
-#ifndef __ASM_ARCH_TEGRA_PWM_H
-#define __ASM_ARCH_TEGRA_PWM_H
-
-/* This is a single PWM channel */
-struct pwm_ctlr {
-       uint control;           /* Control register */
-       uint reserved[3];       /* Space space */
-};
-
-#define PWM_NUM_CHANNELS       4
-
-/* PWM_CONTROLLER_PWM_CSR_0/1/2/3_0 */
-#define PWM_ENABLE_SHIFT       31
-#define PWM_ENABLE_MASK        (0x1 << PWM_ENABLE_SHIFT)
+#ifndef __ASM_ARCH_TEGRA20_PWM_H
+#define __ASM_ARCH_TEGRA20_PWM_H
 
-#define PWM_WIDTH_SHIFT        16
-#define PWM_WIDTH_MASK         (0x7FFF << PWM_WIDTH_SHIFT)
-
-#define PWM_DIVIDER_SHIFT      0
-#define PWM_DIVIDER_MASK       (0x1FFF << PWM_DIVIDER_SHIFT)
-
-/**
- * Program the PWM with the given parameters.
- *
- * @param channel      PWM channel to update
- * @param rate         Clock rate to use for PWM
- * @param pulse_width  high pulse width: 0=always low, 1=1/256 pulse high,
- *                     n = n/256 pulse high
- * @param freq_divider frequency divider value (1 to use rate as is)
- */
-void pwm_enable(unsigned channel, int rate, int pulse_width, int freq_divider);
-
-/**
- * Request a pwm channel as referenced by a device tree node.
- *
- * This channel can then be passed to pwm_enable().
- *
- * @param blob         Device tree blob
- * @param node         Node containing reference to pwm
- * @param prop_name    Property name of pwm reference
- * @return channel number, if ok, else -1
- */
-int pwm_request(const void *blob, int node, const char *prop_name);
-
-/**
- * Set up the pwm controller, by looking it up in the fdt.
- *
- * @return 0 if ok, -1 if the device tree node was not found or invalid.
- */
-int pwm_init(const void *blob);
+#include <asm/arch-tegra/pwm.h>
 
-#endif /* __ASM_ARCH_TEGRA_PWM_H */
+#endif /* __ASM_ARCH_TEGRA20_PWM_H */