mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 10:39:04 +00:00
74d00a8c38
* properly format/comment all patches * merge debloat patches * merge Kconfig patches * merge swconfig patches * merge hotplug patches * drop 200-fix_localversion.patch - upstream * drop 222-arm_zimage_none.patch - unused * drop 252-mv_cesa_depends.patch - no longer required * drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused * drop 661-fq_codel_keep_dropped_stats.patch - outdated * drop 702-phy_add_aneg_done_function.patch - upstream * drop 840-rtc7301.patch - unused * drop 841-rtc_pt7c4338.patch - upstream * drop 921-use_preinit_as_init.patch - unused * drop spio-gpio-old and gpio-mmc - unused Signed-off-by: John Crispin <john@phrozen.org>
174 lines
5.3 KiB
Diff
174 lines
5.3 KiB
Diff
From a94cb7eeecc4104a6874339f90c5d0647359c102 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
|
Date: Mon, 3 Apr 2017 17:48:29 +0200
|
|
Subject: [PATCH] thermal: broadcom: add Northstar thermal driver
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Northstar is a SoC family commonly used in home routers. This commit
|
|
adds a driver for checking CPU temperature. As Northstar Plus seems to
|
|
also have this IP block this new symbol gets ARCH_BCM_IPROC dependency.
|
|
|
|
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
|
|
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
|
|
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
|
|
---
|
|
drivers/thermal/Kconfig | 5 ++
|
|
drivers/thermal/Makefile | 1 +
|
|
drivers/thermal/broadcom/Kconfig | 8 +++
|
|
drivers/thermal/broadcom/Makefile | 1 +
|
|
drivers/thermal/broadcom/ns-thermal.c | 105 ++++++++++++++++++++++++++++++++++
|
|
5 files changed, 120 insertions(+)
|
|
create mode 100644 drivers/thermal/broadcom/Kconfig
|
|
create mode 100644 drivers/thermal/broadcom/Makefile
|
|
create mode 100644 drivers/thermal/broadcom/ns-thermal.c
|
|
|
|
--- a/drivers/thermal/Kconfig
|
|
+++ b/drivers/thermal/Kconfig
|
|
@@ -381,6 +381,11 @@ config MTK_THERMAL
|
|
Enable this option if you want to have support for thermal management
|
|
controller present in Mediatek SoCs
|
|
|
|
+menu "Broadcom thermal drivers"
|
|
+depends on ARCH_BCM || COMPILE_TEST
|
|
+source "drivers/thermal/broadcom/Kconfig"
|
|
+endmenu
|
|
+
|
|
menu "Texas Instruments thermal drivers"
|
|
depends on ARCH_HAS_BANDGAP || COMPILE_TEST
|
|
depends on HAS_IOMEM
|
|
--- a/drivers/thermal/Makefile
|
|
+++ b/drivers/thermal/Makefile
|
|
@@ -26,6 +26,7 @@ thermal_sys-$(CONFIG_CLOCK_THERMAL) += c
|
|
thermal_sys-$(CONFIG_DEVFREQ_THERMAL) += devfreq_cooling.o
|
|
|
|
# platform thermal drivers
|
|
+obj-y += broadcom/
|
|
obj-$(CONFIG_QCOM_SPMI_TEMP_ALARM) += qcom-spmi-temp-alarm.o
|
|
obj-$(CONFIG_SPEAR_THERMAL) += spear_thermal.o
|
|
obj-$(CONFIG_ROCKCHIP_THERMAL) += rockchip_thermal.o
|
|
--- /dev/null
|
|
+++ b/drivers/thermal/broadcom/Kconfig
|
|
@@ -0,0 +1,8 @@
|
|
+config BCM_NS_THERMAL
|
|
+ tristate "Northstar thermal driver"
|
|
+ depends on ARCH_BCM_IPROC || COMPILE_TEST
|
|
+ help
|
|
+ Northstar is a family of SoCs that includes e.g. BCM4708, BCM47081,
|
|
+ BCM4709 and BCM47094. It contains DMU (Device Management Unit) block
|
|
+ with a thermal sensor that allows checking CPU temperature. This
|
|
+ driver provides support for it.
|
|
--- /dev/null
|
|
+++ b/drivers/thermal/broadcom/Makefile
|
|
@@ -0,0 +1 @@
|
|
+obj-$(CONFIG_BCM_NS_THERMAL) += ns-thermal.o
|
|
--- /dev/null
|
|
+++ b/drivers/thermal/broadcom/ns-thermal.c
|
|
@@ -0,0 +1,105 @@
|
|
+/*
|
|
+ * Copyright (C) 2017 Rafał Miłecki <rafal@milecki.pl>
|
|
+ *
|
|
+ * This program is free software; you can redistribute it and/or modify
|
|
+ * it under the terms of the GNU General Public License version 2 as
|
|
+ * published by the Free Software Foundation.
|
|
+ */
|
|
+
|
|
+#include <linux/module.h>
|
|
+#include <linux/of_address.h>
|
|
+#include <linux/platform_device.h>
|
|
+#include <linux/thermal.h>
|
|
+
|
|
+#define PVTMON_CONTROL0 0x00
|
|
+#define PVTMON_CONTROL0_SEL_MASK 0x0000000e
|
|
+#define PVTMON_CONTROL0_SEL_TEMP_MONITOR 0x00000000
|
|
+#define PVTMON_CONTROL0_SEL_TEST_MODE 0x0000000e
|
|
+#define PVTMON_STATUS 0x08
|
|
+
|
|
+struct ns_thermal {
|
|
+ struct thermal_zone_device *tz;
|
|
+ void __iomem *pvtmon;
|
|
+};
|
|
+
|
|
+static int ns_thermal_get_temp(void *data, int *temp)
|
|
+{
|
|
+ struct ns_thermal *ns_thermal = data;
|
|
+ int offset = thermal_zone_get_offset(ns_thermal->tz);
|
|
+ int slope = thermal_zone_get_slope(ns_thermal->tz);
|
|
+ u32 val;
|
|
+
|
|
+ val = readl(ns_thermal->pvtmon + PVTMON_CONTROL0);
|
|
+ if ((val & PVTMON_CONTROL0_SEL_MASK) != PVTMON_CONTROL0_SEL_TEMP_MONITOR) {
|
|
+ /* Clear current mode selection */
|
|
+ val &= ~PVTMON_CONTROL0_SEL_MASK;
|
|
+
|
|
+ /* Set temp monitor mode (it's the default actually) */
|
|
+ val |= PVTMON_CONTROL0_SEL_TEMP_MONITOR;
|
|
+
|
|
+ writel(val, ns_thermal->pvtmon + PVTMON_CONTROL0);
|
|
+ }
|
|
+
|
|
+ val = readl(ns_thermal->pvtmon + PVTMON_STATUS);
|
|
+ *temp = slope * val + offset;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static const struct thermal_zone_of_device_ops ns_thermal_ops = {
|
|
+ .get_temp = ns_thermal_get_temp,
|
|
+};
|
|
+
|
|
+static int ns_thermal_probe(struct platform_device *pdev)
|
|
+{
|
|
+ struct device *dev = &pdev->dev;
|
|
+ struct ns_thermal *ns_thermal;
|
|
+
|
|
+ ns_thermal = devm_kzalloc(dev, sizeof(*ns_thermal), GFP_KERNEL);
|
|
+ if (!ns_thermal)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ ns_thermal->pvtmon = of_iomap(dev_of_node(dev), 0);
|
|
+ if (WARN_ON(!ns_thermal->pvtmon))
|
|
+ return -ENOENT;
|
|
+
|
|
+ ns_thermal->tz = devm_thermal_zone_of_sensor_register(dev, 0,
|
|
+ ns_thermal,
|
|
+ &ns_thermal_ops);
|
|
+ if (IS_ERR(ns_thermal->tz)) {
|
|
+ iounmap(ns_thermal->pvtmon);
|
|
+ return PTR_ERR(ns_thermal->tz);
|
|
+ }
|
|
+
|
|
+ platform_set_drvdata(pdev, ns_thermal);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ns_thermal_remove(struct platform_device *pdev)
|
|
+{
|
|
+ struct ns_thermal *ns_thermal = platform_get_drvdata(pdev);
|
|
+
|
|
+ iounmap(ns_thermal->pvtmon);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static const struct of_device_id ns_thermal_of_match[] = {
|
|
+ { .compatible = "brcm,ns-thermal", },
|
|
+ {},
|
|
+};
|
|
+MODULE_DEVICE_TABLE(of, ns_thermal_of_match);
|
|
+
|
|
+static struct platform_driver ns_thermal_driver = {
|
|
+ .probe = ns_thermal_probe,
|
|
+ .remove = ns_thermal_remove,
|
|
+ .driver = {
|
|
+ .name = "ns-thermal",
|
|
+ .of_match_table = ns_thermal_of_match,
|
|
+ },
|
|
+};
|
|
+module_platform_driver(ns_thermal_driver);
|
|
+
|
|
+MODULE_DESCRIPTION("Northstar thermal driver");
|
|
+MODULE_LICENSE("GPL v2");
|