22 #include "pwm-dwc.h"
24 static void __dwc_pwm_set_enable(struct dwc_pwm *dwc, int pwm, int enabled)  in __dwc_pwm_set_enable()  argument
28 	reg = dwc_pwm_readl(dwc, DWC_TIM_CTRL(pwm));  in __dwc_pwm_set_enable()
35 	dwc_pwm_writel(dwc, reg, DWC_TIM_CTRL(pwm));  in __dwc_pwm_set_enable()
38 static int __dwc_pwm_configure_timer(struct dwc_pwm *dwc,  in __dwc_pwm_configure_timer()  argument
52 	tmp = DIV_ROUND_CLOSEST_ULL(state->duty_cycle, dwc->clk_ns);  in __dwc_pwm_configure_timer()
58 				    dwc->clk_ns);  in __dwc_pwm_configure_timer()
70 	__dwc_pwm_set_enable(dwc, pwm->hwpwm, false);  in __dwc_pwm_configure_timer()
78 	dwc_pwm_writel(dwc, low, DWC_TIM_LD_CNT(pwm->hwpwm));  in __dwc_pwm_configure_timer()
79 	dwc_pwm_writel(dwc, high, DWC_TIM_LD_CNT2(pwm->hwpwm));  in __dwc_pwm_configure_timer()
88 	dwc_pwm_writel(dwc, ctrl, DWC_TIM_CTRL(pwm->hwpwm));  in __dwc_pwm_configure_timer()
93 	__dwc_pwm_set_enable(dwc, pwm->hwpwm, state->enabled);  in __dwc_pwm_configure_timer()
101 	struct dwc_pwm *dwc = to_dwc_pwm(chip);  in dwc_pwm_apply()  local
109 		return __dwc_pwm_configure_timer(dwc, pwm, state);  in dwc_pwm_apply()
112 			__dwc_pwm_set_enable(dwc, pwm->hwpwm, false);  in dwc_pwm_apply()
123 	struct dwc_pwm *dwc = to_dwc_pwm(chip);  in dwc_pwm_get_state()  local
129 	ctrl = dwc_pwm_readl(dwc, DWC_TIM_CTRL(pwm->hwpwm));  in dwc_pwm_get_state()
130 	ld = dwc_pwm_readl(dwc, DWC_TIM_LD_CNT(pwm->hwpwm));  in dwc_pwm_get_state()
131 	ld2 = dwc_pwm_readl(dwc, DWC_TIM_LD_CNT2(pwm->hwpwm));  in dwc_pwm_get_state()
140 		duty = (ld + 1) * dwc->clk_ns;  in dwc_pwm_get_state()
141 		period = (ld2 + 1)  * dwc->clk_ns;  in dwc_pwm_get_state()
144 		duty = (ld + 1) * dwc->clk_ns;  in dwc_pwm_get_state()
164 	struct dwc_pwm *dwc;  in dwc_pwm_alloc()  local
166 	dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);  in dwc_pwm_alloc()
167 	if (!dwc)  in dwc_pwm_alloc()
170 	dwc->clk_ns = 10;  in dwc_pwm_alloc()
171 	dwc->chip.dev = dev;  in dwc_pwm_alloc()
172 	dwc->chip.ops = &dwc_pwm_ops;  in dwc_pwm_alloc()
173 	dwc->chip.npwm = DWC_TIMERS_TOTAL;  in dwc_pwm_alloc()
175 	dev_set_drvdata(dev, dwc);  in dwc_pwm_alloc()
176 	return dwc;  in dwc_pwm_alloc()