copy_to_user_fromio
int copy_to_user_fromio(void __user *dst, const volatile void __iomem *src, size_t count);
EXPORT_SYMBOL(copy_to_user_fromio);
if (copy_to_user_fromio(buf, chip->ba0 + pos, count))
if (copy_to_user_fromio(buf, chip->ba1 + pos, count))
if (copy_to_user_fromio(buf, region->remap_addr + pos, count))
if (copy_to_user_fromio(buf, MIXART_MEM(mgr, pos), count))
if (copy_to_user_fromio(buf, MIXART_REG(mgr, pos), count))