Merge "ARM: dts: msm: add proxy bandwidth vote for kona" (592dc0b6) · Commits · e / devices / android_kernel_fairphone_FP4

arch/arm64/boot/dts/qcom/kona.dtsi

+12 −0

Original line number	Diff line number	Diff line
		@@ -945,6 +945,18 @@
		};
		};

		bus_proxy_client: qcom,bus_proxy_client {
		compatible = "qcom,bus-proxy-client";
		qcom,msm-bus,name = "bus-proxy-client";
		qcom,msm-bus,num-cases = <2>;
		qcom,msm-bus,num-paths = <2>;
		qcom,msm-bus,vectors-KBps =
		<22 512 0 0>, <23 512 0 0>,
		<22 512 1500000 1500000>, <23 512 1500000 1500000>;
		qcom,msm-bus,active-only;
		status = "ok";
		};

		keepalive_opp_table: keepalive-opp-table {
		compatible = "operating-points-v2";
		opp-1 {

drivers/soc/qcom/msm_bus/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -8,7 +8,7 @@ obj-$(CONFIG_MSM_RPM_SMD) += msm_bus_rpm_smd.o

		ifdef CONFIG_QCOM_BUS_CONFIG_RPMH
		obj-y += msm_bus_fabric_rpmh.o msm_bus_arb_rpmh.o msm_bus_rules.o \
		msm_bus_bimc_rpmh.o msm_bus_noc_rpmh.o
		msm_bus_bimc_rpmh.o msm_bus_noc_rpmh.o msm_bus_proxy_client.o
		obj-$(CONFIG_OF) += msm_bus_of_rpmh.o
		else
		obj-y += msm_bus_fabric_adhoc.o msm_bus_arb_adhoc.o msm_bus_rules.o \

drivers/soc/qcom/msm_bus/msm_bus_proxy_client.c

0 → 100644

+85 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
		*/

		#include <linux/msm-bus.h>

		struct proxy_client {
		struct msm_bus_scale_pdata *pdata;
		unsigned int client_handle;
		};

		static struct proxy_client proxy_client_info;

		static int msm_bus_device_proxy_client_probe(struct platform_device *pdev)
		{
		int ret;

		proxy_client_info.pdata = msm_bus_cl_get_pdata(pdev);

		if (!proxy_client_info.pdata)
		return 0;

		proxy_client_info.client_handle =
		msm_bus_scale_register_client(proxy_client_info.pdata);

		if (!proxy_client_info.client_handle) {
		dev_err(&pdev->dev, "Unable to register bus client\n");
		return -ENODEV;
		}

		ret = msm_bus_scale_client_update_request(
		proxy_client_info.client_handle, 1);
		if (ret)
		dev_err(&pdev->dev, "Bandwidth update failed (%d)\n", ret);

		return ret;
		}

		static const struct of_device_id proxy_client_match[] = {
		{.compatible = "qcom,bus-proxy-client"},
		{}
		};

		static struct platform_driver msm_bus_proxy_client_driver = {
		.probe = msm_bus_device_proxy_client_probe,
		.driver = {
		.name = "msm_bus_proxy_client_device",
		.of_match_table = proxy_client_match,
		},
		};

		static int __init msm_bus_proxy_client_init_driver(void)
		{
		int rc;

		rc = platform_driver_register(&msm_bus_proxy_client_driver);
		if (rc) {
		pr_err("Failed to register proxy client device driver\n");
		return rc;
		}

		return rc;
		}

		static int __init msm_bus_proxy_client_unvote(void)
		{
		int ret;

		if (!proxy_client_info.pdata \|\| !proxy_client_info.client_handle)
		return 0;

		ret = msm_bus_scale_client_update_request(
		proxy_client_info.client_handle, 0);
		if (ret)
		pr_err("%s: bandwidth update request failed (%d)\n",
		__func__, ret);

		msm_bus_scale_unregister_client(proxy_client_info.client_handle);

		return 0;
		}

		subsys_initcall_sync(msm_bus_proxy_client_init_driver);
		late_initcall_sync(msm_bus_proxy_client_unvote);