3  * Driver for STMicroelectronics Multi-Function eXpander (STMFX) GPIO expander
10 #include <linux/mfd/stmfx.h>
53  * STMFX pinctrl can have up to 24 pins if STMFX other functions are not used.
85 	struct stmfx *stmfx;  member
113 	ret = regmap_read(pctl->stmfx->map, reg, &value);  in stmfx_gpio_get()
124 	return regmap_write_bits(pctl->stmfx->map, reg + get_reg(offset),  in stmfx_gpio_set()
136 	ret = regmap_read(pctl->stmfx->map, reg, &val);  in stmfx_gpio_get_direction()
138 	 * On stmfx, gpio pins direction is (0)input, (1)output.  in stmfx_gpio_get_direction()
155 	return regmap_write_bits(pctl->stmfx->map, reg, mask, 0);  in stmfx_gpio_direction_input()
170 	return regmap_write_bits(pctl->stmfx->map, reg, mask, mask);  in stmfx_gpio_direction_output()
180 	ret = regmap_read(pctl->stmfx->map, reg, &pupd);  in stmfx_pinconf_get_pupd()
193 	return regmap_write_bits(pctl->stmfx->map, reg, mask, pupd ? mask : 0);  in stmfx_pinconf_set_pupd()
203 	ret = regmap_read(pctl->stmfx->map, reg, &type);  in stmfx_pinconf_get_type()
216 	return regmap_write_bits(pctl->stmfx->map, reg, mask, type ? mask : 0);  in stmfx_pinconf_set_type()
512 	regmap_bulk_write(pctl->stmfx->map, STMFX_REG_IRQ_GPI_EVT,  in stmfx_pinctrl_irq_bus_sync_unlock()
514 	regmap_bulk_write(pctl->stmfx->map, STMFX_REG_IRQ_GPI_TYPE,  in stmfx_pinctrl_irq_bus_sync_unlock()
516 	regmap_bulk_write(pctl->stmfx->map, STMFX_REG_IRQ_GPI_SRC,  in stmfx_pinctrl_irq_bus_sync_unlock()
557 		regmap_write_bits(pctl->stmfx->map,  in stmfx_pinctrl_irq_toggle_trigger()
563 		regmap_write_bits(pctl->stmfx->map,  in stmfx_pinctrl_irq_toggle_trigger()
578 	ret = regmap_bulk_read(pctl->stmfx->map, STMFX_REG_IRQ_GPI_PENDING,  in stmfx_pinctrl_irq_thread_fn()
583 	regmap_bulk_write(pctl->stmfx->map, STMFX_REG_IRQ_GPI_SRC,  in stmfx_pinctrl_irq_thread_fn()
594 	regmap_bulk_write(pctl->stmfx->map, STMFX_REG_IRQ_GPI_SRC,  in stmfx_pinctrl_irq_thread_fn()
640 	return stmfx_function_enable(pctl->stmfx, func);  in stmfx_pinctrl_gpio_function_enable()
645 	struct stmfx *stmfx = dev_get_drvdata(pdev->dev.parent);  in stmfx_pinctrl_probe()  local
651 	pctl = devm_kzalloc(stmfx->dev, sizeof(*pctl), GFP_KERNEL);  in stmfx_pinctrl_probe()
658 	pctl->stmfx = stmfx;  in stmfx_pinctrl_probe()
672 	pctl->pctl_desc.name = "stmfx-pinctrl";  in stmfx_pinctrl_probe()
694 	pctl->gpio_chip.label = "stmfx-gpio";  in stmfx_pinctrl_probe()
743 	struct stmfx *stmfx = dev_get_drvdata(pdev->dev.parent);  in stmfx_pinctrl_remove()  local
746 	ret = stmfx_function_disable(stmfx,  in stmfx_pinctrl_remove()
760 	ret = regmap_bulk_read(pctl->stmfx->map, STMFX_REG_GPIO_STATE,  in stmfx_pinctrl_backup_regs()
764 	ret = regmap_bulk_read(pctl->stmfx->map, STMFX_REG_GPIO_DIR,  in stmfx_pinctrl_backup_regs()
768 	ret = regmap_bulk_read(pctl->stmfx->map, STMFX_REG_GPIO_TYPE,  in stmfx_pinctrl_backup_regs()
772 	ret = regmap_bulk_read(pctl->stmfx->map, STMFX_REG_GPIO_PUPD,  in stmfx_pinctrl_backup_regs()
784 	ret = regmap_bulk_write(pctl->stmfx->map, STMFX_REG_GPIO_DIR,  in stmfx_pinctrl_restore_regs()
788 	ret = regmap_bulk_write(pctl->stmfx->map, STMFX_REG_GPIO_TYPE,  in stmfx_pinctrl_restore_regs()
792 	ret = regmap_bulk_write(pctl->stmfx->map, STMFX_REG_GPIO_PUPD,  in stmfx_pinctrl_restore_regs()
796 	ret = regmap_bulk_write(pctl->stmfx->map, STMFX_REG_GPO_SET,  in stmfx_pinctrl_restore_regs()
800 	ret = regmap_bulk_write(pctl->stmfx->map, STMFX_REG_IRQ_GPI_EVT,  in stmfx_pinctrl_restore_regs()
804 	ret = regmap_bulk_write(pctl->stmfx->map, STMFX_REG_IRQ_GPI_TYPE,  in stmfx_pinctrl_restore_regs()
808 	ret = regmap_bulk_write(pctl->stmfx->map, STMFX_REG_IRQ_GPI_SRC,  in stmfx_pinctrl_restore_regs()
849 	{ .compatible = "st,stmfx-0300-pinctrl", },
856 		.name = "stmfx-pinctrl",
865 MODULE_DESCRIPTION("STMFX pinctrl/GPIO driver");