drivers/gpio/gpio-lpc18xx.c

55 static inline void lpc18xx_gpio_pin_ic_isel(struct lpc18xx_gpio_pin_ic *ic,
58 	u32 val = readl_relaxed(ic->base + LPC18XX_GPIO_PIN_IC_ISEL);
65 	writel_relaxed(val, ic->base + LPC18XX_GPIO_PIN_IC_ISEL);
68 static inline void lpc18xx_gpio_pin_ic_set(struct lpc18xx_gpio_pin_ic *ic,
71 	writel_relaxed(BIT(pin), ic->base + reg);
76 	struct lpc18xx_gpio_pin_ic *ic = d->chip_data;
79 	raw_spin_lock(&ic->lock);
82 		lpc18xx_gpio_pin_ic_set(ic, d->hwirq,
86 		lpc18xx_gpio_pin_ic_set(ic, d->hwirq,
89 	raw_spin_unlock(&ic->lock);
96 	struct lpc18xx_gpio_pin_ic *ic = d->chip_data;
99 	raw_spin_lock(&ic->lock);
102 		lpc18xx_gpio_pin_ic_set(ic, d->hwirq,
106 		lpc18xx_gpio_pin_ic_set(ic, d->hwirq,
109 	raw_spin_unlock(&ic->lock);
116 	struct lpc18xx_gpio_pin_ic *ic = d->chip_data;
119 	raw_spin_lock(&ic->lock);
122 		lpc18xx_gpio_pin_ic_set(ic, d->hwirq,
125 	raw_spin_unlock(&ic->lock);
132 	struct lpc18xx_gpio_pin_ic *ic = d->chip_data;
134 	raw_spin_lock(&ic->lock);
137 		lpc18xx_gpio_pin_ic_isel(ic, d->hwirq, true);
138 		lpc18xx_gpio_pin_ic_set(ic, d->hwirq,
141 		lpc18xx_gpio_pin_ic_isel(ic, d->hwirq, true);
142 		lpc18xx_gpio_pin_ic_set(ic, d->hwirq,
145 		lpc18xx_gpio_pin_ic_isel(ic, d->hwirq, false);
148 	raw_spin_unlock(&ic->lock);
167 	struct lpc18xx_gpio_pin_ic *ic = domain->host_data;
194 					     &lpc18xx_gpio_pin_ic, ic);
208 	struct lpc18xx_gpio_pin_ic *ic;
221 	ic = devm_kzalloc(dev, sizeof(*ic), GFP_KERNEL);
222 	if (!ic)
226 					 "gpio-pin-ic");
236 	ic->base = devm_ioremap_resource(dev, &res);
237 	if (IS_ERR(ic->base)) {
238 		ret = PTR_ERR(ic->base);
242 	raw_spin_lock_init(&ic->lock);
244 	ic->domain = irq_domain_add_hierarchy(parent_domain, 0,
248 					      ic);
249 	if (!ic->domain) {
255 	gc->pin_ic = ic;
260 	devm_iounmap(dev, ic->base);
262 	devm_kfree(dev, ic);