diff options
Diffstat (limited to 'target/linux/generic/pending-4.4/086-0004-thermal-broadcom-add-Northstar-thermal-driver.patch')
| -rw-r--r-- | target/linux/generic/pending-4.4/086-0004-thermal-broadcom-add-Northstar-thermal-driver.patch | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/target/linux/generic/pending-4.4/086-0004-thermal-broadcom-add-Northstar-thermal-driver.patch b/target/linux/generic/pending-4.4/086-0004-thermal-broadcom-add-Northstar-thermal-driver.patch deleted file mode 100644 index 1821096..0000000 --- a/target/linux/generic/pending-4.4/086-0004-thermal-broadcom-add-Northstar-thermal-driver.patch +++ /dev/null @@ -1,173 +0,0 @@ -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 -@@ -365,6 +365,11 @@ config INTEL_PCH_THERMAL - Thermal reporting device will provide temperature reading, - programmable trip points and other information. - -+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 - source "drivers/thermal/ti-soc-thermal/Kconfig" ---- 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"); |