// SPDX-License-Identifier: GPL-2.0
/*
* DesignWare PWM Controller driver
*
* Copyright (C) 2018-2020 Intel Corporation
*
* Author: Felipe Balbi (Intel)
* Author: Jarkko Nikula <jarkko.nikula@linux.intel.com>
* Author: Raymond Tan <raymond.tan@intel.com>
*/
MODULE_IMPORT_NS("dwc_pwm" );
#define DWC_TIM_LD_CNT(n) ((n) * 0 x14)
#define DWC_TIM_LD_CNT2(n) (((n) * 4 ) + 0 xb0)
#define DWC_TIM_CUR_VAL(n) (((n) * 0 x14) + 0 x04)
#define DWC_TIM_CTRL(n) (((n) * 0 x14) + 0 x08)
#define DWC_TIM_EOI(n) (((n) * 0 x14) + 0 x0c)
#define DWC_TIM_INT_STS(n) (((n) * 0 x14) + 0 x10)
#define DWC_TIMERS_INT_STS 0 xa0
#define DWC_TIMERS_EOI 0 xa4
#define DWC_TIMERS_RAW_INT_STS 0 xa8
#define DWC_TIMERS_COMP_VERSION 0 xac
#define DWC_TIMERS_TOTAL 8
/* Timer Control Register */
#define DWC_TIM_CTRL_EN BIT(0 )
#define DWC_TIM_CTRL_MODE BIT(1 )
#define DWC_TIM_CTRL_MODE_FREE (0 << 1 )
#define DWC_TIM_CTRL_MODE_USER (1 << 1 )
#define DWC_TIM_CTRL_INT_MASK BIT(2 )
#define DWC_TIM_CTRL_PWM BIT(3 )
struct dwc_pwm_info {
unsigned int nr;
unsigned int size;
};
struct dwc_pwm_drvdata {
const struct dwc_pwm_info *info;
void __iomem *io_base;
struct pwm_chip *chips[];
};
struct dwc_pwm_ctx {
u32 cnt;
u32 cnt2;
u32 ctrl;
};
struct dwc_pwm {
void __iomem *base;
unsigned int clk_ns;
struct dwc_pwm_ctx ctx[DWC_TIMERS_TOTAL];
};
static inline struct dwc_pwm *to_dwc_pwm(struct pwm_chip *chip)
{
return pwmchip_get_drvdata(chip);
}
static inline u32 dwc_pwm_readl(struct dwc_pwm *dwc, u32 offset)
{
return readl(dwc->base + offset);
}
static inline void dwc_pwm_writel(struct dwc_pwm *dwc, u32 value, u32 offset)
{
writel(value, dwc->base + offset);
}
extern struct pwm_chip *dwc_pwm_alloc(struct device *dev);
Messung V0.5 in Prozent C=94 H=92 G=92
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-08)
¤
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