37 static inline u32 pwm_lpss_read(const struct pwm_device *pwm)  in pwm_lpss_read()  argument
39 	struct pwm_lpss_chip *lpwm = to_lpwm(pwm->chip);  in pwm_lpss_read()
41 	return readl(lpwm->regs + pwm->hwpwm * PWM_SIZE + PWM);  in pwm_lpss_read()
44 static inline void pwm_lpss_write(const struct pwm_device *pwm, u32 value)  in pwm_lpss_write()  argument
46 	struct pwm_lpss_chip *lpwm = to_lpwm(pwm->chip);  in pwm_lpss_write()
48 	writel(value, lpwm->regs + pwm->hwpwm * PWM_SIZE + PWM);  in pwm_lpss_write()
51 static int pwm_lpss_wait_for_update(struct pwm_device *pwm)  in pwm_lpss_wait_for_update()  argument
53 	struct pwm_lpss_chip *lpwm = to_lpwm(pwm->chip);  in pwm_lpss_wait_for_update()
54 	const void __iomem *addr = lpwm->regs + pwm->hwpwm * PWM_SIZE + PWM;  in pwm_lpss_wait_for_update()
72 		dev_err(pwm->chip->dev, "PWM_SW_UPDATE was not cleared\n");  in pwm_lpss_wait_for_update()
77 static inline int pwm_lpss_is_updating(struct pwm_device *pwm)  in pwm_lpss_is_updating()  argument
79 	return (pwm_lpss_read(pwm) & PWM_SW_UPDATE) ? -EBUSY : 0;  in pwm_lpss_is_updating()
82 static void pwm_lpss_prepare(struct pwm_lpss_chip *lpwm, struct pwm_device *pwm,  in pwm_lpss_prepare()  argument
107 	ctrl = pwm_lpss_read(pwm);  in pwm_lpss_prepare()
113 	pwm_lpss_write(pwm, ctrl);  in pwm_lpss_prepare()
114 	pwm_lpss_write(pwm, ctrl | PWM_SW_UPDATE);  in pwm_lpss_prepare()
117 static inline void pwm_lpss_cond_enable(struct pwm_device *pwm, bool cond)  in pwm_lpss_cond_enable()  argument
120 		pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_ENABLE);  in pwm_lpss_cond_enable()
124 				   struct pwm_device *pwm,  in pwm_lpss_prepare_enable()  argument
129 	ret = pwm_lpss_is_updating(pwm);  in pwm_lpss_prepare_enable()
133 	pwm_lpss_prepare(lpwm, pwm, state->duty_cycle, state->period);  in pwm_lpss_prepare_enable()
134 	pwm_lpss_cond_enable(pwm, lpwm->info->bypass == false);  in pwm_lpss_prepare_enable()
135 	ret = pwm_lpss_wait_for_update(pwm);  in pwm_lpss_prepare_enable()
139 	pwm_lpss_cond_enable(pwm, lpwm->info->bypass == true);  in pwm_lpss_prepare_enable()
143 static int pwm_lpss_apply(struct pwm_chip *chip, struct pwm_device *pwm,  in pwm_lpss_apply()  argument
150 		if (!pwm_is_enabled(pwm)) {  in pwm_lpss_apply()
152 			ret = pwm_lpss_prepare_enable(lpwm, pwm, state);  in pwm_lpss_apply()
156 			ret = pwm_lpss_prepare_enable(lpwm, pwm, state);  in pwm_lpss_apply()
158 	} else if (pwm_is_enabled(pwm)) {  in pwm_lpss_apply()
159 		pwm_lpss_write(pwm, pwm_lpss_read(pwm) & ~PWM_ENABLE);  in pwm_lpss_apply()
166 static void pwm_lpss_get_state(struct pwm_chip *chip, struct pwm_device *pwm,  in pwm_lpss_get_state()  argument
178 	ctrl = pwm_lpss_read(pwm);  in pwm_lpss_get_state()