struct gsta_gpio *chip = gc->private;
int nr = data->irq - chip->irq_base;
struct gsta_regs __iomem *regs = __regs(chip, nr);
struct gsta_gpio *chip = gc->private;
int nr = data->irq - chip->irq_base;
struct gsta_regs __iomem *regs = __regs(chip, nr);