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u-boot/arch/arm/include/asm/arch-rockchip/pwm.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
pwm: rockchip: Add a PWM driver for Rockchip SoCs Add a simple driver which implements the standard PWM uclass interface. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:55 +00:00
/*
* (C) Copyright 2016 Google, Inc
* (C) Copyright 2008-2014 Rockchip Electronics
*/
#ifndef _ASM_ARCH_PWM_H
#define _ASM_ARCH_PWM_H
pwm: rk_pwm: Make PWM driver to support all Rockchip Socs This PWM driver can be used to support pwm functions for on all Rockchip Socs. The previous chips than RK3288 did not support polarity, and register layout was different from the RK3288 PWM. The RK3288 keep the current functions. RK3328 and the chips after it, which can support hardware lock, configure duty, period and polarity at next same period, to prevent the intermediate temporary state. Signed-off-by: David Wu <david.wu@rock-chips.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-03 09:49:53 +00:00
struct rockchip_pwm_regs {
unsigned long duty;
unsigned long period;
unsigned long cntr;
unsigned long ctrl;
pwm: rockchip: Add a PWM driver for Rockchip SoCs Add a simple driver which implements the standard PWM uclass interface. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:55 +00:00
};
pwm: rk_pwm: Make PWM driver to support all Rockchip Socs This PWM driver can be used to support pwm functions for on all Rockchip Socs. The previous chips than RK3288 did not support polarity, and register layout was different from the RK3288 PWM. The RK3288 keep the current functions. RK3328 and the chips after it, which can support hardware lock, configure duty, period and polarity at next same period, to prevent the intermediate temporary state. Signed-off-by: David Wu <david.wu@rock-chips.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-03 09:49:53 +00:00
#define PWM_CTRL_TIMER_EN (1 << 0)
#define PWM_CTRL_OUTPUT_EN (1 << 3)
pwm: rockchip: Add a PWM driver for Rockchip SoCs Add a simple driver which implements the standard PWM uclass interface. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:55 +00:00
#define RK_PWM_DISABLE (0 << 0)
#define RK_PWM_ENABLE (1 << 0)
#define PWM_ONE_SHOT (0 << 1)
#define PWM_CONTINUOUS (1 << 1)
#define RK_PWM_CAPTURE (1 << 2)
#define PWM_DUTY_POSTIVE (1 << 3)
#define PWM_DUTY_NEGATIVE (0 << 3)
rockchip: pwm: add mask for config setting Use mask to clear old setting before direct set the new config, or else there it will mess up the config when it's not the same with default value. Fixes: 3851059 rockchip: Setup default PWM flags Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-07-19 11:54:23 +00:00
#define PWM_DUTY_MASK (1 << 3)
pwm: rockchip: Add a PWM driver for Rockchip SoCs Add a simple driver which implements the standard PWM uclass interface. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:55 +00:00
#define PWM_INACTIVE_POSTIVE (1 << 4)
#define PWM_INACTIVE_NEGATIVE (0 << 4)
rockchip: pwm: add mask for config setting Use mask to clear old setting before direct set the new config, or else there it will mess up the config when it's not the same with default value. Fixes: 3851059 rockchip: Setup default PWM flags Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-07-19 11:54:23 +00:00
#define PWM_INACTIVE_MASK (1 << 4)
pwm: rockchip: Add a PWM driver for Rockchip SoCs Add a simple driver which implements the standard PWM uclass interface. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:55 +00:00
#define PWM_OUTPUT_LEFT (0 << 5)
#define PWM_OUTPUT_CENTER (1 << 5)
pwm: rk_pwm: Make PWM driver to support all Rockchip Socs This PWM driver can be used to support pwm functions for on all Rockchip Socs. The previous chips than RK3288 did not support polarity, and register layout was different from the RK3288 PWM. The RK3288 keep the current functions. RK3328 and the chips after it, which can support hardware lock, configure duty, period and polarity at next same period, to prevent the intermediate temporary state. Signed-off-by: David Wu <david.wu@rock-chips.com> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-03 09:49:53 +00:00
#define PWM_LOCK (1 << 6)
#define PWM_UNLOCK (0 << 6)
pwm: rockchip: Add a PWM driver for Rockchip SoCs Add a simple driver which implements the standard PWM uclass interface. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:55 +00:00
#define PWM_LP_ENABLE (1 << 8)
#define PWM_LP_DISABLE (0 << 8)
#define PWM_SEL_SCALE_CLK (1 << 9)
#define PWM_SEL_SRC_CLK (0 << 9)
#endif
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