95 static int tegra_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,  in tegra_pwm_config()  argument
183 	if (!pwm_is_enabled(pwm)) {  in tegra_pwm_config()
190 	pwm_writel(pc, pwm->hwpwm, val);  in tegra_pwm_config()
195 	if (!pwm_is_enabled(pwm))  in tegra_pwm_config()
201 static int tegra_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)  in tegra_pwm_enable()  argument
211 	val = pwm_readl(pc, pwm->hwpwm);  in tegra_pwm_enable()
213 	pwm_writel(pc, pwm->hwpwm, val);  in tegra_pwm_enable()
218 static void tegra_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)  in tegra_pwm_disable()  argument
223 	val = pwm_readl(pc, pwm->hwpwm);  in tegra_pwm_disable()
225 	pwm_writel(pc, pwm->hwpwm, val);  in tegra_pwm_disable()
239 	struct tegra_pwm_chip *pwm;  in tegra_pwm_probe()  local
243 	pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL);  in tegra_pwm_probe()
244 	if (!pwm)  in tegra_pwm_probe()
247 	pwm->soc = of_device_get_match_data(&pdev->dev);  in tegra_pwm_probe()
248 	pwm->dev = &pdev->dev;  in tegra_pwm_probe()
251 	pwm->regs = devm_ioremap_resource(&pdev->dev, r);  in tegra_pwm_probe()
252 	if (IS_ERR(pwm->regs))  in tegra_pwm_probe()
253 		return PTR_ERR(pwm->regs);  in tegra_pwm_probe()
255 	platform_set_drvdata(pdev, pwm);  in tegra_pwm_probe()
257 	pwm->clk = devm_clk_get(&pdev->dev, NULL);  in tegra_pwm_probe()
258 	if (IS_ERR(pwm->clk))  in tegra_pwm_probe()
259 		return PTR_ERR(pwm->clk);  in tegra_pwm_probe()
262 	ret = clk_set_rate(pwm->clk, pwm->soc->max_frequency);  in tegra_pwm_probe()
273 	pwm->clk_rate = clk_get_rate(pwm->clk);  in tegra_pwm_probe()
276 	pwm->min_period_ns =  in tegra_pwm_probe()
277 	    (NSEC_PER_SEC / (pwm->soc->max_frequency >> PWM_DUTY_WIDTH)) + 1;  in tegra_pwm_probe()
279 	pwm->rst = devm_reset_control_get_exclusive(&pdev->dev, "pwm");  in tegra_pwm_probe()
280 	if (IS_ERR(pwm->rst)) {  in tegra_pwm_probe()
281 		ret = PTR_ERR(pwm->rst);  in tegra_pwm_probe()
286 	reset_control_deassert(pwm->rst);  in tegra_pwm_probe()
288 	pwm->chip.dev = &pdev->dev;  in tegra_pwm_probe()
289 	pwm->chip.ops = &tegra_pwm_ops;  in tegra_pwm_probe()
290 	pwm->chip.base = -1;  in tegra_pwm_probe()
291 	pwm->chip.npwm = pwm->soc->num_channels;  in tegra_pwm_probe()
293 	ret = pwmchip_add(&pwm->chip);  in tegra_pwm_probe()
296 		reset_control_assert(pwm->rst);  in tegra_pwm_probe()