41 static inline u32 zx_pwm_readl(struct zx_pwm_chip *zpc, unsigned int hwpwm,  in zx_pwm_readl()  argument
44 	return readl(zpc->base + (hwpwm + 1) * 0x10 + offset);  in zx_pwm_readl()
47 static inline void zx_pwm_writel(struct zx_pwm_chip *zpc, unsigned int hwpwm,  in zx_pwm_writel()  argument
50 	writel(value, zpc->base + (hwpwm + 1) * 0x10 + offset);  in zx_pwm_writel()
53 static void zx_pwm_set_mask(struct zx_pwm_chip *zpc, unsigned int hwpwm,  in zx_pwm_set_mask()  argument
58 	data = zx_pwm_readl(zpc, hwpwm, offset);  in zx_pwm_set_mask()
61 	zx_pwm_writel(zpc, hwpwm, offset, data);  in zx_pwm_set_mask()
67 	struct zx_pwm_chip *zpc = to_zx_pwm_chip(chip);  in zx_pwm_get_state()  local
73 	value = zx_pwm_readl(zpc, pwm->hwpwm, ZX_PWM_MODE);  in zx_pwm_get_state()
86 	rate = clk_get_rate(zpc->wclk);  in zx_pwm_get_state()
88 	tmp = zx_pwm_readl(zpc, pwm->hwpwm, ZX_PWM_PERIOD);  in zx_pwm_get_state()
92 	tmp = zx_pwm_readl(zpc, pwm->hwpwm, ZX_PWM_DUTY);  in zx_pwm_get_state()
100 	struct zx_pwm_chip *zpc = to_zx_pwm_chip(chip);  in zx_pwm_config()  local
107 	rate = clk_get_rate(zpc->wclk);  in zx_pwm_config()
134 		zx_pwm_set_mask(zpc, pwm->hwpwm, ZX_PWM_MODE, ZX_PWM_EN, 0);  in zx_pwm_config()
137 	zx_pwm_set_mask(zpc, pwm->hwpwm, ZX_PWM_MODE, ZX_PWM_CLKDIV_MASK,  in zx_pwm_config()
139 	zx_pwm_writel(zpc, pwm->hwpwm, ZX_PWM_PERIOD, period_cycles);  in zx_pwm_config()
140 	zx_pwm_writel(zpc, pwm->hwpwm, ZX_PWM_DUTY, duty_cycles);  in zx_pwm_config()
144 		zx_pwm_set_mask(zpc, pwm->hwpwm, ZX_PWM_MODE,  in zx_pwm_config()
153 	struct zx_pwm_chip *zpc = to_zx_pwm_chip(chip);  in zx_pwm_apply()  local
160 		zx_pwm_set_mask(zpc, pwm->hwpwm, ZX_PWM_MODE, ZX_PWM_POLAR,  in zx_pwm_apply()
174 			ret = clk_prepare_enable(zpc->wclk);  in zx_pwm_apply()
178 			zx_pwm_set_mask(zpc, pwm->hwpwm, ZX_PWM_MODE,  in zx_pwm_apply()
181 			zx_pwm_set_mask(zpc, pwm->hwpwm, ZX_PWM_MODE,  in zx_pwm_apply()
183 			clk_disable_unprepare(zpc->wclk);  in zx_pwm_apply()
198 	struct zx_pwm_chip *zpc;  in zx_pwm_probe()  local
203 	zpc = devm_kzalloc(&pdev->dev, sizeof(*zpc), GFP_KERNEL);  in zx_pwm_probe()
204 	if (!zpc)  in zx_pwm_probe()
208 	zpc->base = devm_ioremap_resource(&pdev->dev, res);  in zx_pwm_probe()
209 	if (IS_ERR(zpc->base))  in zx_pwm_probe()
210 		return PTR_ERR(zpc->base);  in zx_pwm_probe()
212 	zpc->pclk = devm_clk_get(&pdev->dev, "pclk");  in zx_pwm_probe()
213 	if (IS_ERR(zpc->pclk))  in zx_pwm_probe()
214 		return PTR_ERR(zpc->pclk);  in zx_pwm_probe()
216 	zpc->wclk = devm_clk_get(&pdev->dev, "wclk");  in zx_pwm_probe()
217 	if (IS_ERR(zpc->wclk))  in zx_pwm_probe()
218 		return PTR_ERR(zpc->wclk);  in zx_pwm_probe()
220 	ret = clk_prepare_enable(zpc->pclk);  in zx_pwm_probe()
224 	zpc->chip.dev = &pdev->dev;  in zx_pwm_probe()
225 	zpc->chip.ops = &zx_pwm_ops;  in zx_pwm_probe()
226 	zpc->chip.base = -1;  in zx_pwm_probe()
227 	zpc->chip.npwm = 4;  in zx_pwm_probe()
228 	zpc->chip.of_xlate = of_pwm_xlate_with_flags;  in zx_pwm_probe()
229 	zpc->chip.of_pwm_n_cells = 3;  in zx_pwm_probe()
235 	for (i = 0; i < zpc->chip.npwm; i++)  in zx_pwm_probe()
236 		zx_pwm_set_mask(zpc, i, ZX_PWM_MODE, ZX_PWM_EN, 0);  in zx_pwm_probe()
238 	ret = pwmchip_add(&zpc->chip);  in zx_pwm_probe()
244 	platform_set_drvdata(pdev, zpc);  in zx_pwm_probe()
251 	struct zx_pwm_chip *zpc = platform_get_drvdata(pdev);  in zx_pwm_remove()  local
254 	ret = pwmchip_remove(&zpc->chip);  in zx_pwm_remove()
255 	clk_disable_unprepare(zpc->pclk);  in zx_pwm_remove()