40 	struct bcm2835_pwm *pc = to_bcm2835_pwm(chip);  in bcm2835_pwm_request()  local
43 	value = readl(pc->base + PWM_CONTROL);  in bcm2835_pwm_request()
46 	writel(value, pc->base + PWM_CONTROL);  in bcm2835_pwm_request()
53 	struct bcm2835_pwm *pc = to_bcm2835_pwm(chip);  in bcm2835_pwm_free()  local
56 	value = readl(pc->base + PWM_CONTROL);  in bcm2835_pwm_free()
58 	writel(value, pc->base + PWM_CONTROL);  in bcm2835_pwm_free()
65 	struct bcm2835_pwm *pc = to_bcm2835_pwm(chip);  in bcm2835_pwm_apply()  local
66 	unsigned long rate = clk_get_rate(pc->clk);  in bcm2835_pwm_apply()
73 		dev_err(pc->dev, "failed to get clock rate\n");  in bcm2835_pwm_apply()
103 	writel(period_cycles, pc->base + PERIOD(pwm->hwpwm));  in bcm2835_pwm_apply()
107 	writel(val, pc->base + DUTY(pwm->hwpwm));  in bcm2835_pwm_apply()
110 	val = readl(pc->base + PWM_CONTROL);  in bcm2835_pwm_apply()
123 	writel(val, pc->base + PWM_CONTROL);  in bcm2835_pwm_apply()
137 	struct bcm2835_pwm *pc;  in bcm2835_pwm_probe()  local
140 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);  in bcm2835_pwm_probe()
141 	if (!pc)  in bcm2835_pwm_probe()
144 	pc->dev = &pdev->dev;  in bcm2835_pwm_probe()
146 	pc->base = devm_platform_ioremap_resource(pdev, 0);  in bcm2835_pwm_probe()
147 	if (IS_ERR(pc->base))  in bcm2835_pwm_probe()
148 		return PTR_ERR(pc->base);  in bcm2835_pwm_probe()
150 	pc->clk = devm_clk_get(&pdev->dev, NULL);  in bcm2835_pwm_probe()
151 	if (IS_ERR(pc->clk))  in bcm2835_pwm_probe()
152 		return dev_err_probe(&pdev->dev, PTR_ERR(pc->clk),  in bcm2835_pwm_probe()
155 	ret = clk_prepare_enable(pc->clk);  in bcm2835_pwm_probe()
159 	pc->chip.dev = &pdev->dev;  in bcm2835_pwm_probe()
160 	pc->chip.ops = &bcm2835_pwm_ops;  in bcm2835_pwm_probe()
161 	pc->chip.npwm = 2;  in bcm2835_pwm_probe()
163 	platform_set_drvdata(pdev, pc);  in bcm2835_pwm_probe()
165 	ret = pwmchip_add(&pc->chip);  in bcm2835_pwm_probe()
172 	clk_disable_unprepare(pc->clk);  in bcm2835_pwm_probe()
178 	struct bcm2835_pwm *pc = platform_get_drvdata(pdev);  in bcm2835_pwm_remove()  local
180 	pwmchip_remove(&pc->chip);  in bcm2835_pwm_remove()
182 	clk_disable_unprepare(pc->clk);  in bcm2835_pwm_remove()