drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_init.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * AMD MP2 1.1 communication driver
  *
  * Copyright (c) 2022, Advanced Micro Devices, Inc.
  * All Rights Reserved.
  *
  * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
  */

 #include <linux/delay.h>
 #include <linux/hid.h>

 #include "amd_sfh_init.h"
 #include "amd_sfh_interface.h"
 #include "../hid_descriptor/amd_sfh_hid_desc.h"

 static int amd_sfh_get_sensor_num(struct amd_mp2_dev *mp2, u8 *sensor_id)
 {
 	struct sfh_sensor_list *slist;
 	struct sfh_base_info binfo;
 	int num_of_sensors = 0;
 	int i;

 	memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
 	slist = &binfo.sbase.s_list;

 	for (i = 0; i < MAX_IDX; i++) {
 		switch (i) {
 		case ACCEL_IDX:
 		case GYRO_IDX:
 		case MAG_IDX:
 		case ALS_IDX:
 		case HPD_IDX:
 			if (BIT(i) & slist->sl.sensors)
 				sensor_id[num_of_sensors++] = i;
 			break;
 		}
 	}

 	return num_of_sensors;
 }

 static u32 amd_sfh_wait_for_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
 {
 	if (mp2->mp2_ops->response)
 		return mp2->mp2_ops->response(mp2, sid, cmd_id);

 	return 0;
 }

 static const char *get_sensor_name(int idx)
 {
 	switch (idx) {
 	case ACCEL_IDX:
 		return "accelerometer";
 	case GYRO_IDX:
 		return "gyroscope";
 	case MAG_IDX:
 		return "magnetometer";
 	case ALS_IDX:
 		return "ALS";
 	case HPD_IDX:
 		return "HPD";
 	default:
 		return "unknown sensor type";
 	}
 }

 static int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
 {
 	struct amdtp_cl_data *cl_data = privdata->cl_data;
 	int i, status;

 	for (i = 0; i < cl_data->num_hid_devices; i++) {
 		switch (cl_data->sensor_idx[i]) {
 		case HPD_IDX:
 			privdata->dev_en.is_hpd_present = false;
 			break;
 		case ALS_IDX:
 			privdata->dev_en.is_als_present = false;
 			break;
 		}

 		if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
 			privdata->mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
 			status = amd_sfh_wait_for_response
 					(privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
 			if (status == 0)
 				cl_data->sensor_sts[i] = SENSOR_DISABLED;
 			dev_dbg(&privdata->pdev->dev, "stopping sid 0x%x (%s) status 0x%x\n",
 				cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
 				cl_data->sensor_sts[i]);
 		}
 	}

 	cancel_delayed_work_sync(&cl_data->work);
 	cancel_delayed_work_sync(&cl_data->work_buffer);
 	amdtp_hid_remove(cl_data);

 	return 0;
 }

 static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata)
 {
 	struct amd_input_data *in_data = &privdata->in_data;
 	struct amdtp_cl_data *cl_data = privdata->cl_data;
 	struct amd_mp2_ops *mp2_ops = privdata->mp2_ops;
 	struct amd_mp2_sensor_info info;
 	struct request_list *req_list;
 	u32 feature_report_size;
 	u32 input_report_size;
 	struct device *dev;
 	int rc, i, status;
 	u8 cl_idx;

 	req_list = &cl_data->req_list;
 	dev = &privdata->pdev->dev;
 	amd_sfh1_1_set_desc_ops(mp2_ops);

 	cl_data->num_hid_devices = amd_sfh_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
 	if (cl_data->num_hid_devices == 0)
 		return -ENODEV;
 	cl_data->is_any_sensor_enabled = false;

 	INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
 	INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);
 	INIT_LIST_HEAD(&req_list->list);
 	cl_data->in_data = in_data;

 	for (i = 0; i < cl_data->num_hid_devices; i++) {
 		cl_data->sensor_sts[i] = SENSOR_DISABLED;
 		cl_data->sensor_requested_cnt[i] = 0;
 		cl_data->cur_hid_dev = i;
 		cl_idx = cl_data->sensor_idx[i];

 		cl_data->report_descr_sz[i] = mp2_ops->get_desc_sz(cl_idx, descr_size);
 		if (!cl_data->report_descr_sz[i]) {
 			rc = -EINVAL;
 			goto cleanup;
 		}
 		feature_report_size = mp2_ops->get_desc_sz(cl_idx, feature_size);
 		if (!feature_report_size) {
 			rc = -EINVAL;
 			goto cleanup;
 		}
 		input_report_size =  mp2_ops->get_desc_sz(cl_idx, input_size);
 		if (!input_report_size) {
 			rc = -EINVAL;
 			goto cleanup;
 		}
 		cl_data->feature_report[i] = devm_kzalloc(dev, feature_report_size, GFP_KERNEL);
 		if (!cl_data->feature_report[i]) {
 			rc = -ENOMEM;
 			goto cleanup;
 		}
 		in_data->input_report[i] = devm_kzalloc(dev, input_report_size, GFP_KERNEL);
 		if (!in_data->input_report[i]) {
 			rc = -ENOMEM;
 			goto cleanup;
 		}

 		info.sensor_idx = cl_idx;

 		cl_data->report_descr[i] =
 			devm_kzalloc(dev, cl_data->report_descr_sz[i], GFP_KERNEL);
 		if (!cl_data->report_descr[i]) {
 			rc = -ENOMEM;
 			goto cleanup;
 		}
 		rc = mp2_ops->get_rep_desc(cl_idx, cl_data->report_descr[i]);
 		if (rc)
 			goto cleanup;

 		writel(0, privdata->mmio + amd_get_p2c_val(privdata, 0));
 		mp2_ops->start(privdata, info);
 		status = amd_sfh_wait_for_response
 				(privdata, cl_data->sensor_idx[i], ENABLE_SENSOR);

 		cl_data->sensor_sts[i] = (status == 0) ? SENSOR_ENABLED : SENSOR_DISABLED;
 	}

 	for (i = 0; i < cl_data->num_hid_devices; i++) {
 		cl_data->cur_hid_dev = i;
 		if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
 			cl_data->is_any_sensor_enabled = true;
 			rc = amdtp_hid_probe(i, cl_data);
 			if (rc)
 				goto cleanup;
 			switch (cl_data->sensor_idx[i]) {
 			case HPD_IDX:
 				privdata->dev_en.is_hpd_present = true;
 				break;
 			case ALS_IDX:
 				privdata->dev_en.is_als_present = true;
 				break;
 			}
 		}
 		dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
 			cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
 			cl_data->sensor_sts[i]);
 	}

 	if (!cl_data->is_any_sensor_enabled) {
 		dev_warn(dev, "No sensor registered, sensors not enabled is %d\n",
 			 cl_data->is_any_sensor_enabled);
 		rc = -EOPNOTSUPP;
 		goto cleanup;
 	}

 	schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
 	return 0;

 cleanup:
 	amd_sfh_hid_client_deinit(privdata);
 	for (i = 0; i < cl_data->num_hid_devices; i++) {
 		devm_kfree(dev, cl_data->feature_report[i]);
 		devm_kfree(dev, in_data->input_report[i]);
 		devm_kfree(dev, cl_data->report_descr[i]);
 	}
 	return rc;
 }

 static void amd_sfh_resume(struct amd_mp2_dev *mp2)
 {
 	struct amdtp_cl_data *cl_data = mp2->cl_data;
 	struct amd_mp2_sensor_info info;
 	int i, status;

 	if (!cl_data->is_any_sensor_enabled) {
 		amd_sfh_clear_intr(mp2);
 		return;
 	}

 	for (i = 0; i < cl_data->num_hid_devices; i++) {
 		if (cl_data->sensor_sts[i] == SENSOR_DISABLED) {
 			info.sensor_idx = cl_data->sensor_idx[i];
 			mp2->mp2_ops->start(mp2, info);
 			status = amd_sfh_wait_for_response
 					(mp2, cl_data->sensor_idx[i], ENABLE_SENSOR);
 			if (status == 0)
 				status = SENSOR_ENABLED;
 			if (status == SENSOR_ENABLED)
 				cl_data->sensor_sts[i] = SENSOR_ENABLED;
 			dev_dbg(&mp2->pdev->dev, "resume sid 0x%x (%s) status 0x%x\n",
 				cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
 				cl_data->sensor_sts[i]);
 		}
 	}

 	schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
 	amd_sfh_clear_intr(mp2);
 }

 static void amd_sfh_suspend(struct amd_mp2_dev *mp2)
 {
 	struct amdtp_cl_data *cl_data = mp2->cl_data;
 	int i, status;

 	if (!cl_data->is_any_sensor_enabled) {
 		amd_sfh_clear_intr(mp2);
 		return;
 	}

 	for (i = 0; i < cl_data->num_hid_devices; i++) {
 		if (cl_data->sensor_idx[i] != HPD_IDX &&
 		    cl_data->sensor_sts[i] == SENSOR_ENABLED) {
 			mp2->mp2_ops->stop(mp2, cl_data->sensor_idx[i]);
 			status = amd_sfh_wait_for_response
 					(mp2, cl_data->sensor_idx[i], DISABLE_SENSOR);
 			if (status == 0)
 				status = SENSOR_DISABLED;
 			if (status != SENSOR_ENABLED)
 				cl_data->sensor_sts[i] = SENSOR_DISABLED;
 			dev_dbg(&mp2->pdev->dev, "suspend sid 0x%x (%s) status 0x%x\n",
 				cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
 				cl_data->sensor_sts[i]);
 		}
 	}

 	cancel_delayed_work_sync(&cl_data->work_buffer);
 	amd_sfh_clear_intr(mp2);
 }

 static void amd_mp2_pci_remove(void *privdata)
 {
 	struct amd_mp2_dev *mp2 = privdata;

 	sfh_deinit_emp2();
 	amd_sfh_hid_client_deinit(privdata);
 	mp2->mp2_ops->stop_all(mp2);
 	pci_intx(mp2->pdev, false);
 	amd_sfh_clear_intr(mp2);
 }

 static void amd_sfh_set_ops(struct amd_mp2_dev *mp2)
 {
 	struct amd_mp2_ops *mp2_ops;

 	sfh_interface_init(mp2);
 	mp2_ops = mp2->mp2_ops;
 	mp2_ops->clear_intr = amd_sfh_clear_intr_v2,
 	mp2_ops->init_intr = amd_sfh_irq_init_v2,
 	mp2_ops->suspend = amd_sfh_suspend;
 	mp2_ops->resume = amd_sfh_resume;
 	mp2_ops->remove = amd_mp2_pci_remove;
 }

 int amd_sfh1_1_init(struct amd_mp2_dev *mp2)
 {
 	u32 phy_base = readl(mp2->mmio + amd_get_c2p_val(mp2, 22));
 	struct device *dev = &mp2->pdev->dev;
 	struct sfh_base_info binfo;
 	int rc;

 	phy_base <<= 21;
 	if (!devm_request_mem_region(dev, phy_base, 128 * 1024, "amd_sfh")) {
 		dev_dbg(dev, "can't reserve mmio registers\n");
 		return -ENOMEM;
 	}

 	mp2->vsbase = devm_ioremap(dev, phy_base, 128 * 1024);
 	if (!mp2->vsbase) {
 		dev_dbg(dev, "failed to remap vsbase\n");
 		return -ENOMEM;
 	}

 	/* Before accessing give time for SFH firmware for processing configuration */
 	msleep(5000);

 	memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
 	if (binfo.sbase.fw_info.fw_ver == 0 || binfo.sbase.s_list.sl.sensors == 0) {
 		dev_dbg(dev, "No sensor registered\n");
 		return -EOPNOTSUPP;
 	}
 	dev_dbg(dev, "firmware version 0x%x\n", binfo.sbase.fw_info.fw_ver);

 	amd_sfh_set_ops(mp2);

 	rc = amd_sfh_irq_init(mp2);
 	if (rc) {
 		sfh_deinit_emp2();
 		dev_err(dev, "amd_sfh_irq_init failed\n");
 		return rc;
 	}

 	rc = amd_sfh1_1_hid_client_init(mp2);
 	if (rc) {
 		sfh_deinit_emp2();
 		if ((rc != -ENODEV) && (rc != -EOPNOTSUPP))
 			dev_err(dev, "amd_sfh1_1_hid_client_init failed\n");
 		return rc;
 	}

 	return rc;
 }
	// SPDX-License-Identifier: GPL-2.0-or-later
	/*
	* AMD MP2 1.1 communication driver
	*
	* Copyright (c) 2022, Advanced Micro Devices, Inc.
	* All Rights Reserved.
	*
	* Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
	*/

	#include <linux/delay.h>
	#include <linux/hid.h>

	#include "amd_sfh_init.h"
	#include "amd_sfh_interface.h"
	#include "../hid_descriptor/amd_sfh_hid_desc.h"

	static int amd_sfh_get_sensor_num(struct amd_mp2_dev mp2, u8 sensor_id)
	{
	struct sfh_sensor_list *slist;
	struct sfh_base_info binfo;
	int num_of_sensors = 0;
	int i;

	memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
	slist = &binfo.sbase.s_list;

	for (i = 0; i < MAX_IDX; i++) {
	switch (i) {
	case ACCEL_IDX:
	case GYRO_IDX:
	case MAG_IDX:
	case ALS_IDX:
	case HPD_IDX:
	if (BIT(i) & slist->sl.sensors)
	sensor_id[num_of_sensors++] = i;
	break;
	}
	}

	return num_of_sensors;
	}

	static u32 amd_sfh_wait_for_response(struct amd_mp2_dev *mp2, u8 sid, u32 cmd_id)
	{
	if (mp2->mp2_ops->response)
	return mp2->mp2_ops->response(mp2, sid, cmd_id);

	return 0;
	}

	static const char *get_sensor_name(int idx)
	{
	switch (idx) {
	case ACCEL_IDX:
	return "accelerometer";
	case GYRO_IDX:
	return "gyroscope";
	case MAG_IDX:
	return "magnetometer";
	case ALS_IDX:
	return "ALS";
	case HPD_IDX:
	return "HPD";
	default:
	return "unknown sensor type";
	}
	}

	static int amd_sfh_hid_client_deinit(struct amd_mp2_dev *privdata)
	{
	struct amdtp_cl_data *cl_data = privdata->cl_data;
	int i, status;

	for (i = 0; i < cl_data->num_hid_devices; i++) {
	switch (cl_data->sensor_idx[i]) {
	case HPD_IDX:
	privdata->dev_en.is_hpd_present = false;
	break;
	case ALS_IDX:
	privdata->dev_en.is_als_present = false;
	break;
	}

	if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
	privdata->mp2_ops->stop(privdata, cl_data->sensor_idx[i]);
	status = amd_sfh_wait_for_response
	(privdata, cl_data->sensor_idx[i], DISABLE_SENSOR);
	if (status == 0)
	cl_data->sensor_sts[i] = SENSOR_DISABLED;
	dev_dbg(&privdata->pdev->dev, "stopping sid 0x%x (%s) status 0x%x\n",
	cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
	cl_data->sensor_sts[i]);
	}
	}

	cancel_delayed_work_sync(&cl_data->work);
	cancel_delayed_work_sync(&cl_data->work_buffer);
	amdtp_hid_remove(cl_data);

	return 0;
	}

	static int amd_sfh1_1_hid_client_init(struct amd_mp2_dev *privdata)
	{
	struct amd_input_data *in_data = &privdata->in_data;
	struct amdtp_cl_data *cl_data = privdata->cl_data;
	struct amd_mp2_ops *mp2_ops = privdata->mp2_ops;
	struct amd_mp2_sensor_info info;
	struct request_list *req_list;
	u32 feature_report_size;
	u32 input_report_size;
	struct device *dev;
	int rc, i, status;
	u8 cl_idx;

	req_list = &cl_data->req_list;
	dev = &privdata->pdev->dev;
	amd_sfh1_1_set_desc_ops(mp2_ops);

	cl_data->num_hid_devices = amd_sfh_get_sensor_num(privdata, &cl_data->sensor_idx[0]);
	if (cl_data->num_hid_devices == 0)
	return -ENODEV;
	cl_data->is_any_sensor_enabled = false;

	INIT_DELAYED_WORK(&cl_data->work, amd_sfh_work);
	INIT_DELAYED_WORK(&cl_data->work_buffer, amd_sfh_work_buffer);
	INIT_LIST_HEAD(&req_list->list);
	cl_data->in_data = in_data;

	for (i = 0; i < cl_data->num_hid_devices; i++) {
	cl_data->sensor_sts[i] = SENSOR_DISABLED;
	cl_data->sensor_requested_cnt[i] = 0;
	cl_data->cur_hid_dev = i;
	cl_idx = cl_data->sensor_idx[i];

	cl_data->report_descr_sz[i] = mp2_ops->get_desc_sz(cl_idx, descr_size);
	if (!cl_data->report_descr_sz[i]) {
	rc = -EINVAL;
	goto cleanup;
	}
	feature_report_size = mp2_ops->get_desc_sz(cl_idx, feature_size);
	if (!feature_report_size) {
	rc = -EINVAL;
	goto cleanup;
	}
	input_report_size = mp2_ops->get_desc_sz(cl_idx, input_size);
	if (!input_report_size) {
	rc = -EINVAL;
	goto cleanup;
	}
	cl_data->feature_report[i] = devm_kzalloc(dev, feature_report_size, GFP_KERNEL);
	if (!cl_data->feature_report[i]) {
	rc = -ENOMEM;
	goto cleanup;
	}
	in_data->input_report[i] = devm_kzalloc(dev, input_report_size, GFP_KERNEL);
	if (!in_data->input_report[i]) {
	rc = -ENOMEM;
	goto cleanup;
	}

	info.sensor_idx = cl_idx;

	cl_data->report_descr[i] =
	devm_kzalloc(dev, cl_data->report_descr_sz[i], GFP_KERNEL);
	if (!cl_data->report_descr[i]) {
	rc = -ENOMEM;
	goto cleanup;
	}
	rc = mp2_ops->get_rep_desc(cl_idx, cl_data->report_descr[i]);
	if (rc)
	goto cleanup;

	writel(0, privdata->mmio + amd_get_p2c_val(privdata, 0));
	mp2_ops->start(privdata, info);
	status = amd_sfh_wait_for_response
	(privdata, cl_data->sensor_idx[i], ENABLE_SENSOR);

	cl_data->sensor_sts[i] = (status == 0) ? SENSOR_ENABLED : SENSOR_DISABLED;
	}

	for (i = 0; i < cl_data->num_hid_devices; i++) {
	cl_data->cur_hid_dev = i;
	if (cl_data->sensor_sts[i] == SENSOR_ENABLED) {
	cl_data->is_any_sensor_enabled = true;
	rc = amdtp_hid_probe(i, cl_data);
	if (rc)
	goto cleanup;
	switch (cl_data->sensor_idx[i]) {
	case HPD_IDX:
	privdata->dev_en.is_hpd_present = true;
	break;
	case ALS_IDX:
	privdata->dev_en.is_als_present = true;
	break;
	}
	}
	dev_dbg(dev, "sid 0x%x (%s) status 0x%x\n",
	cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
	cl_data->sensor_sts[i]);
	}

	if (!cl_data->is_any_sensor_enabled) {
	dev_warn(dev, "No sensor registered, sensors not enabled is %d\n",
	cl_data->is_any_sensor_enabled);
	rc = -EOPNOTSUPP;
	goto cleanup;
	}

	schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
	return 0;

	cleanup:
	amd_sfh_hid_client_deinit(privdata);
	for (i = 0; i < cl_data->num_hid_devices; i++) {
	devm_kfree(dev, cl_data->feature_report[i]);
	devm_kfree(dev, in_data->input_report[i]);
	devm_kfree(dev, cl_data->report_descr[i]);
	}
	return rc;
	}

	static void amd_sfh_resume(struct amd_mp2_dev *mp2)
	{
	struct amdtp_cl_data *cl_data = mp2->cl_data;
	struct amd_mp2_sensor_info info;
	int i, status;

	if (!cl_data->is_any_sensor_enabled) {
	amd_sfh_clear_intr(mp2);
	return;
	}

	for (i = 0; i < cl_data->num_hid_devices; i++) {
	if (cl_data->sensor_sts[i] == SENSOR_DISABLED) {
	info.sensor_idx = cl_data->sensor_idx[i];
	mp2->mp2_ops->start(mp2, info);
	status = amd_sfh_wait_for_response
	(mp2, cl_data->sensor_idx[i], ENABLE_SENSOR);
	if (status == 0)
	status = SENSOR_ENABLED;
	if (status == SENSOR_ENABLED)
	cl_data->sensor_sts[i] = SENSOR_ENABLED;
	dev_dbg(&mp2->pdev->dev, "resume sid 0x%x (%s) status 0x%x\n",
	cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
	cl_data->sensor_sts[i]);
	}
	}

	schedule_delayed_work(&cl_data->work_buffer, msecs_to_jiffies(AMD_SFH_IDLE_LOOP));
	amd_sfh_clear_intr(mp2);
	}

	static void amd_sfh_suspend(struct amd_mp2_dev *mp2)
	{
	struct amdtp_cl_data *cl_data = mp2->cl_data;
	int i, status;

	if (!cl_data->is_any_sensor_enabled) {
	amd_sfh_clear_intr(mp2);
	return;
	}

	for (i = 0; i < cl_data->num_hid_devices; i++) {
	if (cl_data->sensor_idx[i] != HPD_IDX &&
	cl_data->sensor_sts[i] == SENSOR_ENABLED) {
	mp2->mp2_ops->stop(mp2, cl_data->sensor_idx[i]);
	status = amd_sfh_wait_for_response
	(mp2, cl_data->sensor_idx[i], DISABLE_SENSOR);
	if (status == 0)
	status = SENSOR_DISABLED;
	if (status != SENSOR_ENABLED)
	cl_data->sensor_sts[i] = SENSOR_DISABLED;
	dev_dbg(&mp2->pdev->dev, "suspend sid 0x%x (%s) status 0x%x\n",
	cl_data->sensor_idx[i], get_sensor_name(cl_data->sensor_idx[i]),
	cl_data->sensor_sts[i]);
	}
	}

	cancel_delayed_work_sync(&cl_data->work_buffer);
	amd_sfh_clear_intr(mp2);
	}

	static void amd_mp2_pci_remove(void *privdata)
	{
	struct amd_mp2_dev *mp2 = privdata;

	sfh_deinit_emp2();
	amd_sfh_hid_client_deinit(privdata);
	mp2->mp2_ops->stop_all(mp2);
	pci_intx(mp2->pdev, false);
	amd_sfh_clear_intr(mp2);
	}

	static void amd_sfh_set_ops(struct amd_mp2_dev *mp2)
	{
	struct amd_mp2_ops *mp2_ops;

	sfh_interface_init(mp2);
	mp2_ops = mp2->mp2_ops;
	mp2_ops->clear_intr = amd_sfh_clear_intr_v2,
	mp2_ops->init_intr = amd_sfh_irq_init_v2,
	mp2_ops->suspend = amd_sfh_suspend;
	mp2_ops->resume = amd_sfh_resume;
	mp2_ops->remove = amd_mp2_pci_remove;
	}

	int amd_sfh1_1_init(struct amd_mp2_dev *mp2)
	{
	u32 phy_base = readl(mp2->mmio + amd_get_c2p_val(mp2, 22));
	struct device *dev = &mp2->pdev->dev;
	struct sfh_base_info binfo;
	int rc;

	phy_base <<= 21;
	if (!devm_request_mem_region(dev, phy_base, 128 * 1024, "amd_sfh")) {
	dev_dbg(dev, "can't reserve mmio registers\n");
	return -ENOMEM;
	}

	mp2->vsbase = devm_ioremap(dev, phy_base, 128 * 1024);
	if (!mp2->vsbase) {
	dev_dbg(dev, "failed to remap vsbase\n");
	return -ENOMEM;
	}

	/* Before accessing give time for SFH firmware for processing configuration */
	msleep(5000);

	memcpy_fromio(&binfo, mp2->vsbase, sizeof(struct sfh_base_info));
	if (binfo.sbase.fw_info.fw_ver == 0 \|\| binfo.sbase.s_list.sl.sensors == 0) {
	dev_dbg(dev, "No sensor registered\n");
	return -EOPNOTSUPP;
	}
	dev_dbg(dev, "firmware version 0x%x\n", binfo.sbase.fw_info.fw_ver);

	amd_sfh_set_ops(mp2);

	rc = amd_sfh_irq_init(mp2);
	if (rc) {
	sfh_deinit_emp2();
	dev_err(dev, "amd_sfh_irq_init failed\n");
	return rc;
	}

	rc = amd_sfh1_1_hid_client_init(mp2);
	if (rc) {
	sfh_deinit_emp2();
	if ((rc != -ENODEV) && (rc != -EOPNOTSUPP))
	dev_err(dev, "amd_sfh1_1_hid_client_init failed\n");
	return rc;
	}

	return rc;
	}