tegra: Move the pwm into tegra-common

This is needed for tegra124 also, so make it common and add a header file
for tegra124.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>

1 files changed, 4 insertions, 50 deletions

diff --git a/arch/arm/include/asm/arch-tegra20/pwm.h b/arch/arm/include/asm/arch-tegra20/pwm.h
index 8e7397d..2207d9c 100644
--- a/arch/arm/include/asm/arch-tegra20/pwm.h
+++ b/arch/arm/include/asm/arch-tegra20/pwm.h
@@ -6,55 +6,9 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#ifndef __ASM_ARCH_TEGRA_PWM_H
-#define __ASM_ARCH_TEGRA_PWM_H
+#ifndef __ASM_ARCH_TEGRA20_PWM_H
+#define __ASM_ARCH_TEGRA20_PWM_H
 
-/* This is a single PWM channel */
-struct pwm_ctlr {
-	uint control;		/* Control register */
-	uint reserved[3];	/* Space space */
-};
+#include <asm/arch-tegra/pwm.h>
 
-#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)
-
-#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);
-
-#endif	/* __ASM_ARCH_TEGRA_PWM_H */
+#endif	/* __ASM_ARCH_TEGRA20_PWM_H */