On Tue, Sep 03, 2024 at 03:36:46PM +0800, Ye Zhang wrote: > Have a list of valid V1 IDs and default to -ENODEV. s/V1// ... > id = readl(bank->reg_base + gpio_regs_v2.version_id); > You may remove this blank line now... > - /* If not gpio v2, that is default to v1. */ > - if (id == GPIO_TYPE_V2 || id == GPIO_TYPE_V2_1) { > - bank->gpio_regs = &gpio_regs_v2; > - bank->gpio_type = GPIO_TYPE_V2; > - } else { > + /* The GPIO version ID is incrementing. */ > + switch (id) { ...basically to have /* The GPIO version ID is incrementing. */ id = readl(bank->reg_base + gpio_regs_v2.version_id); switch (id) { > + case GPIO_TYPE_V1: > bank->gpio_regs = &gpio_regs_v1; > bank->gpio_type = GPIO_TYPE_V1; > + break; > + case GPIO_TYPE_V2: > + case GPIO_TYPE_V2_1: > + bank->gpio_regs = &gpio_regs_v2; > + bank->gpio_type = GPIO_TYPE_V2; > + break; > + default: > + dev_err(bank->dev, "cannot get the version ID\n"); > + return -ENODEV; > } -- With Best Regards, Andy Shevchenko