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Commit e186eb0c authored by Priyansh Jain's avatar Priyansh Jain Committed by Gerrit - the friendly Code Review server
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drivers: thermal: Dynamic cpu's support in cpu voltage cooling driver 



Add support for dynamic cpu's in cpu voltage cooling driver.

Change-Id: Id8dd7800d230e657c16d853da673cb5e9aaf3ca6
Signed-off-by: default avatarPriyansh Jain <quic_priyjain@quicinc.com>
parent c9f18c13

drivers/thermal/qcom/cpu_isolate.c

+7 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2019, The Linux Foundation. All rights reserved.

 * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.

 */

#include <linux/module.h>

#include <linux/thermal.h>
@@ -320,6 +321,12 @@ static int cpu_isolate_probe(struct platform_device *pdev) 
				break;

			}

		}



		if (cpu_isolate_cdev->cpu_id == -1) {

			dev_err(&pdev->dev, "Invalid CPU phandle\n");

			continue;

		}



		INIT_WORK(&cpu_isolate_cdev->reg_work,

				cpu_isolate_register_cdev);

		list_add(&cpu_isolate_cdev->node, &cpu_isolate_cdev_list);

drivers/thermal/qcom/cpu_voltage_cooling.c

+38 −6
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.

 */

#define pr_fmt(fmt) "%s:%s " fmt, KBUILD_MODNAME, __func__
@@ -282,8 +283,7 @@ static int cc_init(struct device_node *np, int *cpus) 
		}

	}

	snprintf(cc_cdev->cdev_name, THERMAL_NAME_LENGTH,

			"thermal-cluster-%d-%d", cc_cdev->cpu_map[0],

			cc_cdev->cpu_map[1]);

			np->name);

	cc_cdev->cdev = thermal_of_cooling_device_register(

					np, cc_cdev->cdev_name, cc_cdev,

					&cc_cooling_ops);
@@ -307,21 +307,53 @@ static int cc_cooling_probe(struct platform_device *pdev) 
	struct device_node *np = dev->of_node;

	struct device_node *dev_phandle, *subsys_np = NULL;

	struct device *cpu_dev;

	int ret = 0, idx = 0, cpu;

	int ret = 0, idx = 0, count = 0, cpu;

	int cpu_count = 0;

	u32 cpu_map[CPU_MAP_CT];



	for_each_available_child_of_node(np, subsys_np) {

		for (idx = 0; idx < CPU_MAP_CT; idx++) {

			dev_phandle = of_parse_phandle(subsys_np, "qcom,cpus",

		cpu_count = of_count_phandle_with_args(subsys_np, "qcom,cluster0",

							NULL);

		for (idx = 0; idx < cpu_count; idx++) {

			dev_phandle = of_parse_phandle(subsys_np, "qcom,cluster0",

							idx);

			for_each_possible_cpu(cpu) {

				cpu_dev = get_cpu_device(cpu);

				if (cpu_dev && cpu_dev->of_node ==

						dev_phandle) {

					cpu_map[idx] = cpu;

					cpu_map[count] = cpu;

					count++;

					break;

				}

			}

			if (count)

				break;

		}

		if (!count) {

			pr_debug("Disabled as no core on cluster 0\n");

			return ret;

		}



		cpu_count = of_count_phandle_with_args(subsys_np, "qcom,cluster1",

							NULL);

		for (idx = 0; idx < cpu_count; idx++) {

			dev_phandle = of_parse_phandle(subsys_np, "qcom,cluster1",

							idx);

			for_each_possible_cpu(cpu) {

				cpu_dev = get_cpu_device(cpu);

				if (cpu_dev && cpu_dev->of_node ==

						dev_phandle) {

					cpu_map[count] = cpu;

					count++;

					break;

				}

			}

			if (count == 2)

				break;

		}

		if (count != 2) {

			pr_debug("Disabled as no core on cluster 1\n");

			return ret;

		}

		ret = cc_init(subsys_np, cpu_map);

	}