Searched refs:ep93xx_pwm (Results 1 - 1 of 1) sorted by relevance
| /linux-4.4.14/drivers/pwm/ |
| H A D | pwm-ep93xx.c | 45 struct ep93xx_pwm { struct
51 static inline struct ep93xx_pwm *to_ep93xx_pwm(struct pwm_chip *chip) to_ep93xx_pwm()
53 return container_of(chip, struct ep93xx_pwm, chip); to_ep93xx_pwm()
73 struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); ep93xx_pwm_config() local
74 void __iomem *base = ep93xx_pwm->base; ep93xx_pwm_config()
86 ret = clk_enable(ep93xx_pwm->clk); ep93xx_pwm_config()
91 c = clk_get_rate(ep93xx_pwm->clk); ep93xx_pwm_config()
117 clk_disable(ep93xx_pwm->clk); ep93xx_pwm_config()
125 struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); ep93xx_pwm_polarity() local
132 ret = clk_enable(ep93xx_pwm->clk); ep93xx_pwm_polarity()
137 writew(0x1, ep93xx_pwm->base + EP93XX_PWMx_INVERT); ep93xx_pwm_polarity()
139 writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_INVERT); ep93xx_pwm_polarity()
141 clk_disable(ep93xx_pwm->clk); ep93xx_pwm_polarity()
148 struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); ep93xx_pwm_enable() local
151 ret = clk_enable(ep93xx_pwm->clk); ep93xx_pwm_enable()
155 writew(0x1, ep93xx_pwm->base + EP93XX_PWMx_ENABLE); ep93xx_pwm_enable()
162 struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip); ep93xx_pwm_disable() local
164 writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_ENABLE); ep93xx_pwm_disable()
165 clk_disable(ep93xx_pwm->clk); ep93xx_pwm_disable()
180 struct ep93xx_pwm *ep93xx_pwm; ep93xx_pwm_probe() local
184 ep93xx_pwm = devm_kzalloc(&pdev->dev, sizeof(*ep93xx_pwm), GFP_KERNEL); ep93xx_pwm_probe()
185 if (!ep93xx_pwm) ep93xx_pwm_probe()
189 ep93xx_pwm->base = devm_ioremap_resource(&pdev->dev, res); ep93xx_pwm_probe()
190 if (IS_ERR(ep93xx_pwm->base)) ep93xx_pwm_probe()
191 return PTR_ERR(ep93xx_pwm->base); ep93xx_pwm_probe()
193 ep93xx_pwm->clk = devm_clk_get(&pdev->dev, "pwm_clk"); ep93xx_pwm_probe()
194 if (IS_ERR(ep93xx_pwm->clk)) ep93xx_pwm_probe()
195 return PTR_ERR(ep93xx_pwm->clk); ep93xx_pwm_probe()
197 ep93xx_pwm->chip.dev = &pdev->dev; ep93xx_pwm_probe()
198 ep93xx_pwm->chip.ops = &ep93xx_pwm_ops; ep93xx_pwm_probe()
199 ep93xx_pwm->chip.base = -1; ep93xx_pwm_probe()
200 ep93xx_pwm->chip.npwm = 1; ep93xx_pwm_probe()
202 ret = pwmchip_add(&ep93xx_pwm->chip); ep93xx_pwm_probe()
206 platform_set_drvdata(pdev, ep93xx_pwm); ep93xx_pwm_probe()
212 struct ep93xx_pwm *ep93xx_pwm = platform_get_drvdata(pdev); ep93xx_pwm_remove() local
214 return pwmchip_remove(&ep93xx_pwm->chip); ep93xx_pwm_remove()
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