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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2023, Linaro Ltd. All rights reserved.
*/
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/usb/role.h>
#include <linux/usb/tcpm.h>
#include <linux/usb/typec_mux.h>
#include <drm/bridge/aux-bridge.h>
#include "qcom_pmic_typec.h"
#include "qcom_pmic_typec_pdphy.h"
#include "qcom_pmic_typec_port.h"
struct pmic_typec_resources {
const struct pmic_typec_pdphy_resources *pdphy_res;
const struct pmic_typec_port_resources *port_res;
};
static int qcom_pmic_typec_init(struct tcpc_dev *tcpc)
{
return 0;
}
static int qcom_pmic_typec_probe(struct platform_device *pdev)
{
struct pmic_typec *tcpm;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
const struct pmic_typec_resources *res;
struct regmap *regmap;
struct device *bridge_dev;
u32 base;
int ret;
res = of_device_get_match_data(dev);
if (!res)
return -ENODEV;
tcpm = devm_kzalloc(dev, sizeof(*tcpm), GFP_KERNEL);
if (!tcpm)
return -ENOMEM;
tcpm->dev = dev;
tcpm->tcpc.init = qcom_pmic_typec_init;
regmap = dev_get_regmap(dev->parent, NULL);
if (!regmap) {
dev_err(dev, "Failed to get regmap\n");
return -ENODEV;
}
ret = of_property_read_u32_index(np, "reg", 0, &base);
if (ret)
return ret;
ret = qcom_pmic_typec_port_probe(pdev, tcpm,
res->port_res, regmap, base);
if (ret)
return ret;
if (res->pdphy_res) {
ret = of_property_read_u32_index(np, "reg", 1, &base);
if (ret)
return ret;
ret = qcom_pmic_typec_pdphy_probe(pdev, tcpm,
res->pdphy_res, regmap, base);
if (ret)
return ret;
} else {
ret = qcom_pmic_typec_pdphy_stub_probe(pdev, tcpm);
if (ret)
return ret;
}
platform_set_drvdata(pdev, tcpm);
tcpm->tcpc.fwnode = device_get_named_child_node(tcpm->dev, "connector");
if (!tcpm->tcpc.fwnode)
return -EINVAL;
bridge_dev = drm_dp_hpd_bridge_register(tcpm->dev, to_of_node(tcpm->tcpc.fwnode));
if (IS_ERR(bridge_dev))
return PTR_ERR(bridge_dev);
tcpm->tcpm_port = tcpm_register_port(tcpm->dev, &tcpm->tcpc);
if (IS_ERR(tcpm->tcpm_port)) {
ret = PTR_ERR(tcpm->tcpm_port);
goto fwnode_remove;
}
ret = tcpm->port_start(tcpm, tcpm->tcpm_port);
if (ret)
goto fwnode_remove;
ret = tcpm->pdphy_start(tcpm, tcpm->tcpm_port);
if (ret)
goto fwnode_remove;
return 0;
fwnode_remove:
fwnode_remove_software_node(tcpm->tcpc.fwnode);
return ret;
}
static void qcom_pmic_typec_remove(struct platform_device *pdev)
{
struct pmic_typec *tcpm = platform_get_drvdata(pdev);
tcpm->pdphy_stop(tcpm);
tcpm->port_stop(tcpm);
tcpm_unregister_port(tcpm->tcpm_port);
fwnode_remove_software_node(tcpm->tcpc.fwnode);
}
static const struct pmic_typec_resources pm8150b_typec_res = {
.pdphy_res = &pm8150b_pdphy_res,
.port_res = &pm8150b_port_res,
};
static const struct pmic_typec_resources pmi632_typec_res = {
/* PD PHY not present */
.port_res = &pm8150b_port_res,
};
static const struct of_device_id qcom_pmic_typec_table[] = {
{ .compatible = "qcom,pm8150b-typec", .data = &pm8150b_typec_res },
{ .compatible = "qcom,pmi632-typec", .data = &pmi632_typec_res },
{ }
};
MODULE_DEVICE_TABLE(of, qcom_pmic_typec_table);
static struct platform_driver qcom_pmic_typec_driver = {
.driver = {
.name = "qcom,pmic-typec",
.of_match_table = qcom_pmic_typec_table,
},
.probe = qcom_pmic_typec_probe,
.remove_new = qcom_pmic_typec_remove,
};
module_platform_driver(qcom_pmic_typec_driver);
MODULE_DESCRIPTION("QCOM PMIC USB Type-C Port Manager Driver");
MODULE_LICENSE("GPL");
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