* devm_request_and_ioremap() - Check, request region, and ioremap resource * @dev: Generic device to handle the resource for * @res: resource to be handled * * Takes all necessary steps to ioremap a mem resource. Uses managed device, so * everything is undone on driver detach. Checks...
request_mem_region(S1D_PHYSICAL_REG_ADDR,S1D_PHYSICAL_REG_SIZE, "EpsonFB_RG") #define request_mem_region(start,n,name) __request_region(&iomem_resource, (start), (n), (name)) __request_region检查是否可以安全占用起始物理地址S1D_PHYSICAL_REG_ADDR之后的连续S1D_PHYSICAL_REG_SIZE字节大小空...
* devm_request_and_ioremap() - Check, request region, and ioremap resource * @dev: Generic device to handle the resource for * @res: resource to be handled * * Takes all necessary steps to ioremap a mem resource. Uses managed device, so * everything is undone on driver detach. Checks...