drivers/media/platform/msm/camera/cam_icp/icp_hw/a5_hw/a5_soc.c

/* Copyright (c) 2017, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/io.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/dma-buf.h>
#include <media/cam_defs.h>
#include <media/cam_icp.h>
#include "a5_soc.h"
#include "cam_soc_util.h"

#undef CDBG
#define CDBG(fmt, args...) pr_debug(fmt, ##args)

static int cam_a5_get_dt_properties(struct cam_hw_soc_info *soc_info)
{
	int rc = 0;
	const char *fw_name;
	struct a5_soc_info *camp_a5_soc_info;
	struct device_node *of_node = NULL;
	struct platform_device *pdev = NULL;

	pdev = soc_info->pdev;
	of_node = pdev->dev.of_node;

	rc = cam_soc_util_get_dt_properties(soc_info);
	if (rc < 0) {
		pr_err("%s: get a5 dt prop is failed\n", __func__);
		return rc;
	}

	camp_a5_soc_info = soc_info->soc_private;
	fw_name = camp_a5_soc_info->fw_name;

	rc = of_property_read_string(of_node, "fw_name", &fw_name);
	if (rc < 0)
		pr_err("%s: fw_name read failed\n", __func__);

	return rc;
}

static int cam_a5_request_platform_resource(
	struct cam_hw_soc_info *soc_info,
	irq_handler_t a5_irq_handler, void *irq_data)
{
	int rc = 0;

	rc = cam_soc_util_request_platform_resource(soc_info, a5_irq_handler,
		irq_data);

	return rc;
}

int cam_a5_init_soc_resources(struct cam_hw_soc_info *soc_info,
	irq_handler_t a5_irq_handler, void *irq_data)
{
	int rc = 0;

	rc = cam_a5_get_dt_properties(soc_info);
	if (rc < 0)
		return rc;

	rc = cam_a5_request_platform_resource(soc_info, a5_irq_handler,
		irq_data);
	if (rc < 0)
		return rc;

	return rc;
}

int cam_a5_enable_soc_resources(struct cam_hw_soc_info *soc_info)
{
	int rc = 0;

	rc = cam_soc_util_enable_platform_resource(soc_info, true, true);
	if (rc)
		pr_err("%s: enable platform failed\n", __func__);

	return rc;
}

int cam_a5_disable_soc_resources(struct cam_hw_soc_info *soc_info)
{
	int rc = 0;

	rc = cam_soc_util_disable_platform_resource(soc_info, true, true);
	if (rc)
		pr_err("%s: disable platform failed\n", __func__);

	return rc;
}