144 static int put_indirect_scom_form0(struct scom_device *scom, uint64_t value,  in put_indirect_scom_form0()  argument
155 	rc = __put_scom(scom, ind_data, ind_addr, status);  in put_indirect_scom_form0()
160 		rc = __get_scom(scom, &ind_data, addr, status);  in put_indirect_scom_form0()
174 static int put_indirect_scom_form1(struct scom_device *scom, uint64_t value,  in put_indirect_scom_form1()  argument
184 	return __put_scom(scom, ind_data, ind_addr, status);  in put_indirect_scom_form1()
187 static int get_indirect_scom_form0(struct scom_device *scom, uint64_t *value,  in get_indirect_scom_form0()  argument
195 	rc = __put_scom(scom, ind_data, ind_addr, status);  in get_indirect_scom_form0()
200 		rc = __get_scom(scom, &ind_data, addr, status);  in get_indirect_scom_form0()
216 static int raw_put_scom(struct scom_device *scom, uint64_t value,  in raw_put_scom()  argument
221 			return put_indirect_scom_form1(scom, value, addr, status);  in raw_put_scom()
223 			return put_indirect_scom_form0(scom, value, addr, status);  in raw_put_scom()
225 		return __put_scom(scom, value, addr, status);  in raw_put_scom()
228 static int raw_get_scom(struct scom_device *scom, uint64_t *value,  in raw_get_scom()  argument
234 		return get_indirect_scom_form0(scom, value, addr, status);  in raw_get_scom()
236 		return __get_scom(scom, value, addr, status);  in raw_get_scom()
239 static int handle_fsi2pib_status(struct scom_device *scom, uint32_t status)  in handle_fsi2pib_status()  argument
246 		fsi_device_write(scom->fsi_dev, SCOM_FSI2PIB_RESET_REG, &dummy,  in handle_fsi2pib_status()
256 static int handle_pib_status(struct scom_device *scom, uint8_t status)  in handle_pib_status()  argument
266 	fsi_device_write(scom->fsi_dev, SCOM_FSI2PIB_RESET_REG, &dummy,  in handle_pib_status()
284 static int put_scom(struct scom_device *scom, uint64_t value,  in put_scom()  argument
291 		rc = raw_put_scom(scom, value, addr, &status);  in put_scom()
295 				fsi_device_write(scom->fsi_dev, SCOM_FSI2PIB_RESET_REG,  in put_scom()
301 			rc = handle_fsi2pib_status(scom, status);  in put_scom()
305 			rc = handle_pib_status(scom,  in put_scom()
318 static int get_scom(struct scom_device *scom, uint64_t *value,  in get_scom()  argument
325 		rc = raw_get_scom(scom, value, addr, &status);  in get_scom()
329 				fsi_device_write(scom->fsi_dev, SCOM_FSI2PIB_RESET_REG,  in get_scom()
335 			rc = handle_fsi2pib_status(scom, status);  in get_scom()
339 			rc = handle_pib_status(scom,  in get_scom()
355 	struct scom_device *scom = filep->private_data;  in scom_read()  local
356 	struct device *dev = &scom->fsi_dev->dev;  in scom_read()
363 	mutex_lock(&scom->lock);  in scom_read()
364 	if (scom->dead)  in scom_read()
367 		rc = get_scom(scom, &val, *offset);  in scom_read()
368 	mutex_unlock(&scom->lock);  in scom_read()
385 	struct scom_device *scom = filep->private_data;  in scom_write()  local
386 	struct device *dev = &scom->fsi_dev->dev;  in scom_write()
398 	mutex_lock(&scom->lock);  in scom_write()
399 	if (scom->dead)  in scom_write()
402 		rc = put_scom(scom, val, *offset);  in scom_write()
403 	mutex_unlock(&scom->lock);  in scom_write()
443 static int scom_raw_read(struct scom_device *scom, void __user *argp)  in scom_raw_read()  argument
452 	rc = raw_get_scom(scom, &acc.data, acc.addr, &status);  in scom_raw_read()
461 static int scom_raw_write(struct scom_device *scom, void __user *argp)  in scom_raw_write()  argument
472 		rc = raw_get_scom(scom, &prev_data, acc.addr, &status);  in scom_raw_write()
482 	rc = raw_put_scom(scom, data, acc.addr, &status);  in scom_raw_write()
492 static int scom_reset(struct scom_device *scom, void __user *argp)  in scom_reset()  argument
500 		rc = fsi_device_write(scom->fsi_dev, SCOM_PIB_RESET_REG, &dummy,  in scom_reset()
503 		rc = fsi_device_write(scom->fsi_dev, SCOM_FSI2PIB_RESET_REG, &dummy,  in scom_reset()
508 static int scom_check(struct scom_device *scom, void __user *argp)  in scom_check()  argument
516 	struct scom_device *scom = file->private_data;  in scom_ioctl()  local
520 	mutex_lock(&scom->lock);  in scom_ioctl()
521 	if (scom->dead) {  in scom_ioctl()
522 		mutex_unlock(&scom->lock);  in scom_ioctl()
527 		rc = scom_check(scom, argp);  in scom_ioctl()
530 		rc = scom_raw_read(scom, argp);  in scom_ioctl()
533 		rc = scom_raw_write(scom, argp);  in scom_ioctl()
536 		rc = scom_reset(scom, argp);  in scom_ioctl()
539 	mutex_unlock(&scom->lock);  in scom_ioctl()
545 	struct scom_device *scom = container_of(inode->i_cdev, struct scom_device, cdev);  in scom_open()  local
547 	file->private_data = scom;  in scom_open()
563 	struct scom_device *scom = container_of(dev, struct scom_device, dev);  in scom_free()  local
565 	put_device(&scom->fsi_dev->dev);  in scom_free()
566 	kfree(scom);  in scom_free()
572 	struct scom_device *scom;  in scom_probe()  local
575 	scom = kzalloc(sizeof(*scom), GFP_KERNEL);  in scom_probe()
576 	if (!scom)  in scom_probe()
578 	dev_set_drvdata(dev, scom);  in scom_probe()
579 	mutex_init(&scom->lock);  in scom_probe()
583 		kfree(scom);  in scom_probe()
586 	scom->fsi_dev = fsi_dev;  in scom_probe()
589 	scom->dev.type = &fsi_cdev_type;  in scom_probe()
590 	scom->dev.parent = dev;  in scom_probe()
591 	scom->dev.release = scom_free;  in scom_probe()
592 	device_initialize(&scom->dev);  in scom_probe()
595 	rc = fsi_get_new_minor(fsi_dev, fsi_dev_scom, &scom->dev.devt, &didx);  in scom_probe()
599 	dev_set_name(&scom->dev, "scom%d", didx);  in scom_probe()
600 	cdev_init(&scom->cdev, &scom_fops);  in scom_probe()
601 	rc = cdev_device_add(&scom->cdev, &scom->dev);  in scom_probe()
604 			rc, dev_name(&scom->dev));  in scom_probe()
610 	fsi_free_minor(scom->dev.devt);  in scom_probe()
612 	put_device(&scom->dev);  in scom_probe()
618 	struct scom_device *scom = dev_get_drvdata(dev);  in scom_remove()  local
620 	mutex_lock(&scom->lock);  in scom_remove()
621 	scom->dead = true;  in scom_remove()
622 	mutex_unlock(&scom->lock);  in scom_remove()
623 	cdev_device_del(&scom->cdev, &scom->dev);  in scom_remove()
624 	fsi_free_minor(scom->dev.devt);  in scom_remove()
625 	put_device(&scom->dev);  in scom_remove()