PSP_FW_ALIGN
psp->fw_buf_sz = ALIGN(conf->fw_size, PSP_FW_ALIGN);
psp->fw_buffer = drmm_kmalloc(ddev, psp->fw_buf_sz + PSP_FW_ALIGN, GFP_KERNEL);
offset = ALIGN(psp->fw_paddr, PSP_FW_ALIGN) - psp->fw_paddr;