diff options
Diffstat (limited to 'target/linux/lantiq/patches-4.9/0302-xrx200-add-sensors-driver.patch')
| -rw-r--r-- | target/linux/lantiq/patches-4.9/0302-xrx200-add-sensors-driver.patch | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/target/linux/lantiq/patches-4.9/0302-xrx200-add-sensors-driver.patch b/target/linux/lantiq/patches-4.9/0302-xrx200-add-sensors-driver.patch deleted file mode 100644 index 7e0051e668..0000000000 --- a/target/linux/lantiq/patches-4.9/0302-xrx200-add-sensors-driver.patch +++ /dev/null @@ -1,184 +0,0 @@ ---- a/drivers/hwmon/Makefile -+++ b/drivers/hwmon/Makefile -@@ -109,6 +109,7 @@ obj-$(CONFIG_SENSORS_LTC4222) += ltc4222 - obj-$(CONFIG_SENSORS_LTC4245) += ltc4245.o - obj-$(CONFIG_SENSORS_LTC4260) += ltc4260.o - obj-$(CONFIG_SENSORS_LTC4261) += ltc4261.o -+obj-$(CONFIG_SENSORS_LTQ_CPUTEMP) += ltq-cputemp.o - obj-$(CONFIG_SENSORS_MAX1111) += max1111.o - obj-$(CONFIG_SENSORS_MAX16065) += max16065.o - obj-$(CONFIG_SENSORS_MAX1619) += max1619.o ---- a/drivers/hwmon/Kconfig -+++ b/drivers/hwmon/Kconfig -@@ -780,6 +780,14 @@ config SENSORS_LTC4261 - This driver can also be built as a module. If so, the module will - be called ltc4261. - -+config SENSORS_LTQ_CPUTEMP -+ bool "Lantiq CPU temperature sensor" -+ depends on LANTIQ -+ default n -+ help -+ If you say yes here you get support for the temperature -+ sensor inside your CPU. -+ - config SENSORS_MAX1111 - tristate "Maxim MAX1111 Serial 8-bit ADC chip and compatibles" - depends on SPI_MASTER ---- /dev/null -+++ b/drivers/hwmon/ltq-cputemp.c -@@ -0,0 +1,154 @@ -+/* Lantiq CPU Temperatur sensor driver for xrx200 -+ * -+ * Copyright (C) 2016 Florian Eckert <feckert@tdt.de> -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License as published by -+ * the Free Software Foundation; either version 2 of the License, or -+ * (at your option) any later version -+ * -+ * This program is distributed in the hope that it will be useful -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, see <http://www.gnu.org/licenses/> -+ */ -+ -+#include <linux/module.h> -+#include <linux/init.h> -+#include <linux/delay.h> -+#include <linux/of_device.h> -+#include <linux/hwmon.h> -+#include <linux/hwmon-sysfs.h> -+ -+#include <lantiq_soc.h> -+ -+/* gphy1 configuration register contains cpu temperature */ -+#define CGU_GPHY1_CR 0x0040 -+#define CGU_TEMP_PD BIT(19) -+ -+static void ltq_cputemp_enable(void) -+{ -+ ltq_cgu_w32(ltq_cgu_r32(CGU_GPHY1_CR) | CGU_TEMP_PD, CGU_GPHY1_CR); -+ -+ /* wait a short moment to let the SoC get the first temperatur value */ -+ mdelay(100); -+} -+ -+static void ltq_cputemp_disable(void) -+{ -+ ltq_cgu_w32(ltq_cgu_r32(CGU_GPHY1_CR) & ~CGU_TEMP_PD, CGU_GPHY1_CR); -+} -+ -+static int ltq_cputemp_read(void) -+{ -+ int value; -+ -+ /* get the temperature including one decimal place */ -+ value = (ltq_cgu_r32(CGU_GPHY1_CR) >> 9) & 0x01FF; -+ value = (value << 2 ) + value; -+ -+ /* range -38 to +154 °C, register value zero is -38.0 °C */ -+ value -= 380; -+ -+ return value; -+} -+ -+static ssize_t show_cputemp(struct device *dev, -+ struct device_attribute *attr, char *buf) -+{ -+ int value; -+ -+ value = ltq_cputemp_read(); -+ /* scale temp to millidegree */ -+ value = value * 100; -+ -+ return sprintf(buf, "%d\n", value); -+} -+ -+static DEVICE_ATTR(temp1_input, S_IRUGO, show_cputemp, NULL); -+ -+static struct attribute *ltq_cputemp_attrs[] = { -+ &dev_attr_temp1_input.attr, -+ NULL -+}; -+ -+ATTRIBUTE_GROUPS(ltq_cputemp); -+ -+static int ltq_cputemp_probe(struct platform_device *pdev) -+{ -+ int value = 0; -+ int ret; -+ struct device *hwmon_dev; -+ -+ /* available on vr9 v1.2 SoCs only */ -+ if (ltq_soc_type() != SOC_TYPE_VR9_2) -+ return -ENODEV; -+ -+ hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, -+ "CPU0", -+ NULL, -+ ltq_cputemp_groups); -+ -+ if (IS_ERR(hwmon_dev)) { -+ dev_err(&pdev->dev, "Failed to register as hwmon device"); -+ ret = PTR_ERR(hwmon_dev); -+ goto error_hwmon; -+ } -+ -+ ltq_cputemp_enable(); -+ value = ltq_cputemp_read(); -+ dev_info(&pdev->dev, "Current CPU die temperature: %d.%d °C", value / 10, value % 10); -+ -+ return 0; -+ -+error_hwmon: -+ return ret; -+} -+ -+static int ltq_cputemp_release(struct platform_device *pdev) -+{ -+ hwmon_device_unregister(&pdev->dev); -+ ltq_cputemp_disable(); -+ return 0; -+} -+ -+const struct of_device_id ltq_cputemp_match[] = { -+ { .compatible = "lantiq,cputemp" }, -+ {}, -+}; -+MODULE_DEVICE_TABLE(of, ltq_cputemp_match); -+ -+static struct platform_driver ltq_cputemp_driver = { -+ .probe = ltq_cputemp_probe, -+ .remove = ltq_cputemp_release, -+ .driver = { -+ .name = "ltq-cputemp", -+ .owner = THIS_MODULE, -+ .of_match_table = ltq_cputemp_match, -+ }, -+}; -+ -+int __init init_ltq_cputemp(void) -+{ -+ int ret; -+ -+ ret = platform_driver_register(<q_cputemp_driver); -+ return ret; -+} -+ -+void clean_ltq_cputemp(void) -+{ -+ platform_driver_unregister(<q_cputemp_driver); -+ return; -+} -+ -+module_init(init_ltq_cputemp); -+module_exit(clean_ltq_cputemp); -+ -+MODULE_AUTHOR("Florian Eckert <feckert@tdt.de>"); -+ -+MODULE_DESCRIPTION("Lantiq Temperature Sensor"); -+MODULE_LICENSE("GPL"); |