diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0044-Added-hwmon-thermal-driver-for-reporting-core-temper.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0044-Added-hwmon-thermal-driver-for-reporting-core-temper.patch | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0044-Added-hwmon-thermal-driver-for-reporting-core-temper.patch b/target/linux/brcm2708/patches-4.4/0044-Added-hwmon-thermal-driver-for-reporting-core-temper.patch deleted file mode 100644 index e22482cd8c..0000000000 --- a/target/linux/brcm2708/patches-4.4/0044-Added-hwmon-thermal-driver-for-reporting-core-temper.patch +++ /dev/null @@ -1,193 +0,0 @@ -From a567aafda2f0d7742253f40e65dee98eeea0e18d Mon Sep 17 00:00:00 2001 -From: popcornmix <popcornmix@gmail.com> -Date: Tue, 26 Mar 2013 19:24:24 +0000 -Subject: [PATCH] Added hwmon/thermal driver for reporting core temperature. - Thanks Dorian -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -BCM270x: Move thermal sensor to Device Tree - -Add Device Tree support to bcm2835-thermal driver. -Add thermal sensor device to Device Tree. -Don't add platform device when booting in DT mode. - -Signed-off-by: Noralf Trønnes <noralf@tronnes.org> ---- - drivers/thermal/Kconfig | 7 ++ - drivers/thermal/Makefile | 1 + - drivers/thermal/bcm2835-thermal.c | 141 ++++++++++++++++++++++++++++++++++++++ - 3 files changed, 149 insertions(+) - create mode 100644 drivers/thermal/bcm2835-thermal.c - ---- a/drivers/thermal/Kconfig -+++ b/drivers/thermal/Kconfig -@@ -285,6 +285,13 @@ config INTEL_POWERCLAMP - enforce idle time which results in more package C-state residency. The - user interface is exposed via generic thermal framework. - -+config THERMAL_BCM2835 -+ depends on RASPBERRYPI_FIRMWARE -+ tristate "BCM2835 Thermal Driver" -+ help -+ This will enable temperature monitoring for the Broadcom BCM2835 -+ chip. If built as a module, it will be called 'bcm2835-thermal'. -+ - config X86_PKG_TEMP_THERMAL - tristate "X86 package temperature thermal driver" - depends on X86_THERMAL_VECTOR ---- a/drivers/thermal/Makefile -+++ b/drivers/thermal/Makefile -@@ -38,6 +38,7 @@ obj-$(CONFIG_ARMADA_THERMAL) += armada_t - obj-$(CONFIG_IMX_THERMAL) += imx_thermal.o - obj-$(CONFIG_DB8500_CPUFREQ_COOLING) += db8500_cpufreq_cooling.o - obj-$(CONFIG_INTEL_POWERCLAMP) += intel_powerclamp.o -+obj-$(CONFIG_THERMAL_BCM2835) += bcm2835-thermal.o - obj-$(CONFIG_X86_PKG_TEMP_THERMAL) += x86_pkg_temp_thermal.o - obj-$(CONFIG_INTEL_SOC_DTS_IOSF_CORE) += intel_soc_dts_iosf.o - obj-$(CONFIG_INTEL_SOC_DTS_THERMAL) += intel_soc_dts_thermal.o ---- /dev/null -+++ b/drivers/thermal/bcm2835-thermal.c -@@ -0,0 +1,141 @@ -+/***************************************************************************** -+* Copyright 2011 Broadcom Corporation. All rights reserved. -+* -+* Unless you and Broadcom execute a separate written software license -+* agreement governing use of this software, this software is licensed to you -+* under the terms of the GNU General Public License version 2, available at -+* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). -+* -+* Notwithstanding the above, under no circumstances may you combine this -+* software in any way with any other Broadcom software provided under a -+* license other than the GPL, without Broadcom's express prior written -+* consent. -+*****************************************************************************/ -+ -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/thermal.h> -+#include <soc/bcm2835/raspberrypi-firmware.h> -+ -+static int bcm2835_thermal_get_property(struct thermal_zone_device *tz, -+ int *temp, u32 tag) -+{ -+ struct rpi_firmware *fw = tz->devdata; -+ struct { -+ u32 id; -+ u32 val; -+ } packet; -+ int ret; -+ -+ *temp = 0; -+ packet.id = 0; -+ ret = rpi_firmware_property(fw, tag, &packet, sizeof(packet)); -+ if (ret) { -+ dev_err(&tz->device, "Failed to get temperature\n"); -+ return ret; -+ } -+ -+ *temp = packet.val; -+ dev_dbg(&tz->device, "%stemp=%d\n", -+ tag == RPI_FIRMWARE_GET_MAX_TEMPERATURE ? "max" : "", *temp); -+ -+ return 0; -+} -+ -+static int bcm2835_thermal_get_temp(struct thermal_zone_device *tz, -+ int *temp) -+{ -+ return bcm2835_thermal_get_property(tz, temp, -+ RPI_FIRMWARE_GET_TEMPERATURE); -+} -+ -+static int bcm2835_thermal_get_max_temp(struct thermal_zone_device *tz, -+ int trip, int *temp) -+{ -+ /* -+ * The maximum safe temperature of the SoC. -+ * Overclock may be disabled above this temperature. -+ */ -+ return bcm2835_thermal_get_property(tz, temp, -+ RPI_FIRMWARE_GET_MAX_TEMPERATURE); -+} -+ -+static int bcm2835_thermal_get_trip_type(struct thermal_zone_device *tz, -+ int trip, enum thermal_trip_type *type) -+{ -+ *type = THERMAL_TRIP_HOT; -+ -+ return 0; -+} -+ -+static int bcm2835_thermal_get_mode(struct thermal_zone_device *tz, -+ enum thermal_device_mode *mode) -+{ -+ *mode = THERMAL_DEVICE_ENABLED; -+ -+ return 0; -+} -+ -+static struct thermal_zone_device_ops ops = { -+ .get_temp = bcm2835_thermal_get_temp, -+ .get_trip_temp = bcm2835_thermal_get_max_temp, -+ .get_trip_type = bcm2835_thermal_get_trip_type, -+ .get_mode = bcm2835_thermal_get_mode, -+}; -+ -+static int bcm2835_thermal_probe(struct platform_device *pdev) -+{ -+ struct device_node *fw_np; -+ struct rpi_firmware *fw; -+ struct thermal_zone_device *tz; -+ -+ fw_np = of_parse_phandle(pdev->dev.of_node, "firmware", 0); -+/* Remove comment when booting without Device Tree is no longer supported -+ if (!fw_np) { -+ dev_err(&pdev->dev, "Missing firmware node\n"); -+ return -ENOENT; -+ } -+*/ -+ fw = rpi_firmware_get(fw_np); -+ if (!fw) -+ return -EPROBE_DEFER; -+ -+ tz = thermal_zone_device_register("bcm2835_thermal", 1, 0, fw, &ops, -+ NULL, 0, 0); -+ if (IS_ERR(tz)) { -+ dev_err(&pdev->dev, "Failed to register the thermal device\n"); -+ return PTR_ERR(tz); -+ } -+ -+ platform_set_drvdata(pdev, tz); -+ -+ return 0; -+} -+ -+static int bcm2835_thermal_remove(struct platform_device *pdev) -+{ -+ thermal_zone_device_unregister(platform_get_drvdata(pdev)); -+ -+ return 0; -+} -+ -+static const struct of_device_id bcm2835_thermal_of_match_table[] = { -+ { .compatible = "brcm,bcm2835-thermal", }, -+ {}, -+}; -+MODULE_DEVICE_TABLE(of, bcm2835_thermal_of_match_table); -+ -+static struct platform_driver bcm2835_thermal_driver = { -+ .probe = bcm2835_thermal_probe, -+ .remove = bcm2835_thermal_remove, -+ .driver = { -+ .name = "bcm2835_thermal", -+ .of_match_table = bcm2835_thermal_of_match_table, -+ }, -+}; -+module_platform_driver(bcm2835_thermal_driver); -+ -+MODULE_AUTHOR("Dorian Peake"); -+MODULE_AUTHOR("Noralf Trønnes"); -+MODULE_DESCRIPTION("Thermal driver for bcm2835 chip"); -+MODULE_LICENSE("GPL"); |