drivers/gpio/gpio-realtek-otto.c

51  * @imr_line_pos: Bit shift of an IRQ line's IMR value.
57  * bit shift of the 2-bit field for a line's IMR settings. Shifts larger than
62  * mask/unmask the interrupts for a GPIO line, and @intr_type is used to store
76 	unsigned int (*line_imr_pos)(unsigned int line);
84 	 * An interrupt would appear to come from a different line than the
85 	 * line the IRQ handler was assigned to, causing uncaught interrupts.
125 static unsigned int realtek_gpio_line_imr_pos_swapped(unsigned int line)
127 	unsigned int port_pin = line % 8;
128 	unsigned int port = line / 8;
151 static unsigned int realtek_gpio_line_imr_pos(unsigned int line)
153 	return 2 * line;
167 static void realtek_gpio_update_line_imr(struct realtek_gpio_ctrl *ctrl, unsigned int line)
170 	unsigned int line_shift = ctrl->line_imr_pos(line);
172 	u32 irq_type = ctrl->intr_type[line];
173 	u32 irq_mask = ctrl->intr_mask[line];
186 	irq_hw_number_t line = irqd_to_hwirq(data);
188 	realtek_gpio_clear_isr(ctrl, BIT(line));
194 	unsigned int line = irqd_to_hwirq(data);
197 	gpiochip_enable_irq(&ctrl->gc, line);
200 	ctrl->intr_mask[line] = REALTEK_GPIO_IMR_LINE_MASK;
201 	realtek_gpio_update_line_imr(ctrl, line);
208 	unsigned int line = irqd_to_hwirq(data);
212 	ctrl->intr_mask[line] = 0;
213 	realtek_gpio_update_line_imr(ctrl, line);
216 	gpiochip_disable_irq(&ctrl->gc, line);
222 	unsigned int line = irqd_to_hwirq(data);
243 	ctrl->intr_type[line] = type;
244 	realtek_gpio_update_line_imr(ctrl, line);
276 	unsigned int line = irqd_to_hwirq(data);
292 			v |= BIT(line);
294 			v &= ~BIT(line);
310 	unsigned int line;
313 	for (line = 0; line < gc->ngpio; line++)
314 		realtek_gpio_update_line_imr(ctrl, line);