On Thu, Feb 1, 2018 at 5:04 AM, Baolin Wang <[email protected]> wrote: > The Spreadtrum SC9860 platform GPIO controller contains 16 groups and > each group contains 16 GPIOs. Each GPIO can set input/output and has > the interrupt capability.
Just noticed couple of more improvements you can do. > + case IRQ_TYPE_EDGE_RISING: > + sprd_gpio_update(chip, offset, SPRD_GPIO_IS, 0); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IBE, 0); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IEV, 1); > + irq_set_handler_locked(data, handle_edge_irq); > + break; > + case IRQ_TYPE_EDGE_FALLING: > + sprd_gpio_update(chip, offset, SPRD_GPIO_IS, 0); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IBE, 0); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IEV, 0); > + irq_set_handler_locked(data, handle_edge_irq); > + break; > + case IRQ_TYPE_EDGE_BOTH: > + sprd_gpio_update(chip, offset, SPRD_GPIO_IS, 0); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IBE, 1); > + irq_set_handler_locked(data, handle_edge_irq); > + break; > + case IRQ_TYPE_LEVEL_HIGH: > + sprd_gpio_update(chip, offset, SPRD_GPIO_IS, 1); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IBE, 0); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IEV, 1); > + irq_set_handler_locked(data, handle_level_irq); > + break; > + case IRQ_TYPE_LEVEL_LOW: > + sprd_gpio_update(chip, offset, SPRD_GPIO_IS, 1); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IBE, 0); > + sprd_gpio_update(chip, offset, SPRD_GPIO_IEV, 0); > + irq_set_handler_locked(data, handle_level_irq); > + break; > + default: > + return -EINVAL; I guess you can use fallthrough and reduce some lines, but I have no strong opinion which will look better. > + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); > + sprd_gpio->base = devm_ioremap_nocache(&pdev->dev, res->start, > + resource_size(res)); Didn't notice before, why not to simple call devm_ioremap_resource() ? -- With Best Regards, Andy Shevchenko
