#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/of_device.h>
#include "thermal_core.h"
-#define TEMP0_LAG (0x0)
-#define TEMP0_TH (0x4)
-#define TEMP0_RST_TH (0x8)
-#define TEMP0_CFG (0xC)
-#define TEMP0_CFG_SS_MSK (0xF000)
-#define TEMP0_CFG_HDAK_MSK (0x30)
-#define TEMP0_EN (0x10)
-#define TEMP0_INT_EN (0x14)
-#define TEMP0_INT_CLR (0x18)
-#define TEMP0_RST_MSK (0x1C)
-#define TEMP0_VALUE (0x28)
-
-#define HISI_TEMP_BASE (-60000)
-#define HISI_TEMP_RESET (100000)
-#define HISI_TEMP_STEP (785)
-#define HISI_TEMP_LAG (3500)
-
-#define HISI_MAX_SENSORS 4
-#define HISI_DEFAULT_SENSOR 2
+#define HI6220_TEMP0_LAG (0x0)
+#define HI6220_TEMP0_TH (0x4)
+#define HI6220_TEMP0_RST_TH (0x8)
+#define HI6220_TEMP0_CFG (0xC)
+#define HI6220_TEMP0_CFG_SS_MSK (0xF000)
+#define HI6220_TEMP0_CFG_HDAK_MSK (0x30)
+#define HI6220_TEMP0_EN (0x10)
+#define HI6220_TEMP0_INT_EN (0x14)
+#define HI6220_TEMP0_INT_CLR (0x18)
+#define HI6220_TEMP0_RST_MSK (0x1C)
+#define HI6220_TEMP0_VALUE (0x28)
+
+#define HI3660_OFFSET(chan) ((chan) * 0x40)
+#define HI3660_TEMP(chan) (HI3660_OFFSET(chan) + 0x1C)
+#define HI3660_TH(chan) (HI3660_OFFSET(chan) + 0x20)
+#define HI3660_LAG(chan) (HI3660_OFFSET(chan) + 0x28)
+#define HI3660_INT_EN(chan) (HI3660_OFFSET(chan) + 0x2C)
+#define HI3660_INT_CLR(chan) (HI3660_OFFSET(chan) + 0x30)
+
+#define HI6220_TEMP_BASE (-60000)
+#define HI6220_TEMP_RESET (100000)
+#define HI6220_TEMP_STEP (785)
+#define HI6220_TEMP_LAG (3500)
+
+#define HI3660_TEMP_BASE (-63780)
+#define HI3660_TEMP_STEP (205)
+#define HI3660_TEMP_LAG (4000)
+
+#define HI6220_DEFAULT_SENSOR 2
+#define HI3660_DEFAULT_SENSOR 1
struct hisi_thermal_sensor {
struct thermal_zone_device *tzd;
};
struct hisi_thermal_data {
+ int (*get_temp)(struct hisi_thermal_data *data);
+ int (*enable_sensor)(struct hisi_thermal_data *data);
+ int (*disable_sensor)(struct hisi_thermal_data *data);
+ int (*irq_handler)(struct hisi_thermal_data *data);
struct platform_device *pdev;
struct clk *clk;
struct hisi_thermal_sensor sensor;
* steps = (Temp - TempBase) / 785
*
*/
-static inline int hisi_thermal_step_to_temp(int step)
+static inline int hi6220_thermal_step_to_temp(int step)
{
- return HISI_TEMP_BASE + (step * HISI_TEMP_STEP);
+ return HI6220_TEMP_BASE + (step * HI6220_TEMP_STEP);
}
-static inline int hisi_thermal_temp_to_step(int temp)
+static inline int hi6220_thermal_temp_to_step(int temp)
{
- return DIV_ROUND_UP(temp - HISI_TEMP_BASE, HISI_TEMP_STEP);
+ return DIV_ROUND_UP(temp - HI6220_TEMP_BASE, HI6220_TEMP_STEP);
+}
+
+/*
+ * for Hi3660,
+ * Step: 189/922 (0.205)
+ * Temperature base: -63.780°C
+ *
+ * The register is programmed in temperature steps, every step is 205
+ * millidegree and begins at -63 780 m°C
+ */
+static inline int hi3660_thermal_step_to_temp(int step)
+{
+ return HI3660_TEMP_BASE + step * HI3660_TEMP_STEP;
+}
+
+static inline int hi3660_thermal_temp_to_step(int temp)
+{
+ return DIV_ROUND_UP(temp - HI3660_TEMP_BASE, HI3660_TEMP_STEP);
}
/*
*
* [0:4] : lag register
*
- * The temperature is coded in steps, cf. HISI_TEMP_STEP.
+ * The temperature is coded in steps, cf. HI6220_TEMP_STEP.
*
* Min : 0x00 : 0.0 °C
* Max : 0x1F : 24.3 °C
*
* The 'value' parameter is in milliCelsius.
*/
-static inline void hisi_thermal_set_lag(void __iomem *addr, int value)
+static inline void hi6220_thermal_set_lag(void __iomem *addr, int value)
{
- writel(DIV_ROUND_UP(value, HISI_TEMP_STEP) & 0x1F, addr + TEMP0_LAG);
+ writel(DIV_ROUND_UP(value, HI6220_TEMP_STEP) & 0x1F,
+ addr + HI6220_TEMP0_LAG);
}
-static inline void hisi_thermal_alarm_clear(void __iomem *addr, int value)
+static inline void hi6220_thermal_alarm_clear(void __iomem *addr, int value)
{
- writel(value, addr + TEMP0_INT_CLR);
+ writel(value, addr + HI6220_TEMP0_INT_CLR);
}
-static inline void hisi_thermal_alarm_enable(void __iomem *addr, int value)
+static inline void hi6220_thermal_alarm_enable(void __iomem *addr, int value)
{
- writel(value, addr + TEMP0_INT_EN);
+ writel(value, addr + HI6220_TEMP0_INT_EN);
}
-static inline void hisi_thermal_alarm_set(void __iomem *addr, int temp)
+static inline void hi6220_thermal_alarm_set(void __iomem *addr, int temp)
{
- writel(hisi_thermal_temp_to_step(temp) | 0x0FFFFFF00, addr + TEMP0_TH);
+ writel(hi6220_thermal_temp_to_step(temp) | 0x0FFFFFF00,
+ addr + HI6220_TEMP0_TH);
}
-static inline void hisi_thermal_reset_set(void __iomem *addr, int temp)
+static inline void hi6220_thermal_reset_set(void __iomem *addr, int temp)
{
- writel(hisi_thermal_temp_to_step(temp), addr + TEMP0_RST_TH);
+ writel(hi6220_thermal_temp_to_step(temp), addr + HI6220_TEMP0_RST_TH);
}
-static inline void hisi_thermal_reset_enable(void __iomem *addr, int value)
+static inline void hi6220_thermal_reset_enable(void __iomem *addr, int value)
{
- writel(value, addr + TEMP0_RST_MSK);
+ writel(value, addr + HI6220_TEMP0_RST_MSK);
}
-static inline void hisi_thermal_enable(void __iomem *addr, int value)
+static inline void hi6220_thermal_enable(void __iomem *addr, int value)
{
- writel(value, addr + TEMP0_EN);
+ writel(value, addr + HI6220_TEMP0_EN);
}
-static inline int hisi_thermal_get_temperature(void __iomem *addr)
+static inline int hi6220_thermal_get_temperature(void __iomem *addr)
{
- return hisi_thermal_step_to_temp(readl(addr + TEMP0_VALUE));
+ return hi6220_thermal_step_to_temp(readl(addr + HI6220_TEMP0_VALUE));
+}
+
+/*
+ * [0:6] lag register
+ *
+ * The temperature is coded in steps, cf. HI3660_TEMP_STEP.
+ *
+ * Min : 0x00 : 0.0 °C
+ * Max : 0x7F : 26.0 °C
+ *
+ */
+static inline void hi3660_thermal_set_lag(void __iomem *addr,
+ int id, int value)
+{
+ writel(DIV_ROUND_UP(value, HI3660_TEMP_STEP) & 0x7F,
+ addr + HI3660_LAG(id));
+}
+
+static inline void hi3660_thermal_alarm_clear(void __iomem *addr,
+ int id, int value)
+{
+ writel(value, addr + HI3660_INT_CLR(id));
+}
+
+static inline void hi3660_thermal_alarm_enable(void __iomem *addr,
+ int id, int value)
+{
+ writel(value, addr + HI3660_INT_EN(id));
+}
+
+static inline void hi3660_thermal_alarm_set(void __iomem *addr,
+ int id, int value)
+{
+ writel(value, addr + HI3660_TH(id));
+}
+
+static inline int hi3660_thermal_get_temperature(void __iomem *addr, int id)
+{
+ return hi3660_thermal_step_to_temp(readl(addr + HI3660_TEMP(id)));
}
/*
* 0x2: remote sensor 2 (ACPU cluster 0)
* 0x3: remote sensor 3 (G3D)
*/
-static inline void hisi_thermal_sensor_select(void __iomem *addr, int sensor)
+static inline void hi6220_thermal_sensor_select(void __iomem *addr, int sensor)
{
- writel((readl(addr + TEMP0_CFG) & ~TEMP0_CFG_SS_MSK) |
- (sensor << 12), addr + TEMP0_CFG);
+ writel((readl(addr + HI6220_TEMP0_CFG) & ~HI6220_TEMP0_CFG_SS_MSK) |
+ (sensor << 12), addr + HI6220_TEMP0_CFG);
}
/*
* 0x2 : 49.152 ms
* 0x3 : 393.216 ms
*/
-static inline void hisi_thermal_hdak_set(void __iomem *addr, int value)
+static inline void hi6220_thermal_hdak_set(void __iomem *addr, int value)
+{
+ writel((readl(addr + HI6220_TEMP0_CFG) & ~HI6220_TEMP0_CFG_HDAK_MSK) |
+ (value << 4), addr + HI6220_TEMP0_CFG);
+}
+
+static int hi6220_thermal_irq_handler(struct hisi_thermal_data *data)
+{
+ hi6220_thermal_alarm_clear(data->regs, 1);
+ return 0;
+}
+
+static int hi3660_thermal_irq_handler(struct hisi_thermal_data *data)
{
- writel((readl(addr + TEMP0_CFG) & ~TEMP0_CFG_HDAK_MSK) |
- (value << 4), addr + TEMP0_CFG);
+ hi3660_thermal_alarm_clear(data->regs, data->sensor.id, 1);
+ return 0;
}
-static void hisi_thermal_disable_sensor(struct hisi_thermal_data *data)
+static int hi6220_thermal_get_temp(struct hisi_thermal_data *data)
+{
+ return hi6220_thermal_get_temperature(data->regs);
+}
+
+static int hi3660_thermal_get_temp(struct hisi_thermal_data *data)
+{
+ return hi3660_thermal_get_temperature(data->regs, data->sensor.id);
+}
+
+static int hi6220_thermal_disable_sensor(struct hisi_thermal_data *data)
{
/* disable sensor module */
- hisi_thermal_enable(data->regs, 0);
- hisi_thermal_alarm_enable(data->regs, 0);
- hisi_thermal_reset_enable(data->regs, 0);
+ hi6220_thermal_enable(data->regs, 0);
+ hi6220_thermal_alarm_enable(data->regs, 0);
+ hi6220_thermal_reset_enable(data->regs, 0);
clk_disable_unprepare(data->clk);
+
+ return 0;
+}
+
+static int hi3660_thermal_disable_sensor(struct hisi_thermal_data *data)
+{
+ /* disable sensor module */
+ hi3660_thermal_alarm_enable(data->regs, data->sensor.id, 0);
+ return 0;
+}
+
+static int hi6220_thermal_enable_sensor(struct hisi_thermal_data *data)
+{
+ struct hisi_thermal_sensor *sensor = &data->sensor;
+ int ret;
+
+ /* enable clock for tsensor */
+ ret = clk_prepare_enable(data->clk);
+ if (ret)
+ return ret;
+
+ /* disable module firstly */
+ hi6220_thermal_reset_enable(data->regs, 0);
+ hi6220_thermal_enable(data->regs, 0);
+
+ /* select sensor id */
+ hi6220_thermal_sensor_select(data->regs, sensor->id);
+
+ /* setting the hdak time */
+ hi6220_thermal_hdak_set(data->regs, 0);
+
+ /* setting lag value between current temp and the threshold */
+ hi6220_thermal_set_lag(data->regs, HI6220_TEMP_LAG);
+
+ /* enable for interrupt */
+ hi6220_thermal_alarm_set(data->regs, sensor->thres_temp);
+
+ hi6220_thermal_reset_set(data->regs, HI6220_TEMP_RESET);
+
+ /* enable module */
+ hi6220_thermal_reset_enable(data->regs, 1);
+ hi6220_thermal_enable(data->regs, 1);
+
+ hi6220_thermal_alarm_clear(data->regs, 0);
+ hi6220_thermal_alarm_enable(data->regs, 1);
+
+ return 0;
+}
+
+static int hi3660_thermal_enable_sensor(struct hisi_thermal_data *data)
+{
+ unsigned int value;
+ struct hisi_thermal_sensor *sensor = &data->sensor;
+
+ /* disable interrupt */
+ hi3660_thermal_alarm_enable(data->regs, sensor->id, 0);
+
+ /* setting lag value between current temp and the threshold */
+ hi3660_thermal_set_lag(data->regs, sensor->id, HI3660_TEMP_LAG);
+
+ /* set interrupt threshold */
+ value = hi3660_thermal_temp_to_step(sensor->thres_temp);
+ hi3660_thermal_alarm_set(data->regs, sensor->id, value);
+
+ /* enable interrupt */
+ hi3660_thermal_alarm_clear(data->regs, sensor->id, 1);
+ hi3660_thermal_alarm_enable(data->regs, sensor->id, 1);
+
+ return 0;
+}
+
+static int hi6220_thermal_probe(struct hisi_thermal_data *data)
+{
+ struct platform_device *pdev = data->pdev;
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ int ret;
+
+ data->get_temp = hi6220_thermal_get_temp;
+ data->enable_sensor = hi6220_thermal_enable_sensor;
+ data->disable_sensor = hi6220_thermal_disable_sensor;
+ data->irq_handler = hi6220_thermal_irq_handler;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ data->regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(data->regs)) {
+ dev_err(dev, "failed to get io address\n");
+ return PTR_ERR(data->regs);
+ }
+
+ data->clk = devm_clk_get(dev, "thermal_clk");
+ if (IS_ERR(data->clk)) {
+ ret = PTR_ERR(data->clk);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "failed to get thermal clk: %d\n", ret);
+ return ret;
+ }
+
+ data->irq = platform_get_irq(pdev, 0);
+ if (data->irq < 0)
+ return data->irq;
+
+ data->sensor.id = HI6220_DEFAULT_SENSOR;
+
+ return 0;
+}
+
+static int hi3660_thermal_probe(struct hisi_thermal_data *data)
+{
+ struct platform_device *pdev = data->pdev;
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+
+ data->get_temp = hi3660_thermal_get_temp;
+ data->enable_sensor = hi3660_thermal_enable_sensor;
+ data->disable_sensor = hi3660_thermal_disable_sensor;
+ data->irq_handler = hi3660_thermal_irq_handler;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ data->regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(data->regs)) {
+ dev_err(dev, "failed to get io address\n");
+ return PTR_ERR(data->regs);
+ }
+
+ data->irq = platform_get_irq(pdev, 0);
+ if (data->irq < 0)
+ return data->irq;
+
+ data->sensor.id = HI3660_DEFAULT_SENSOR;
+
+ return 0;
}
static int hisi_thermal_get_temp(void *__data, int *temp)
struct hisi_thermal_data *data = __data;
struct hisi_thermal_sensor *sensor = &data->sensor;
- *temp = hisi_thermal_get_temperature(data->regs);
+ *temp = data->get_temp(data);
dev_dbg(&data->pdev->dev, "id=%d, temp=%d, thres=%d\n",
sensor->id, *temp, sensor->thres_temp);
{
struct hisi_thermal_data *data = dev;
struct hisi_thermal_sensor *sensor = &data->sensor;
- int temp;
+ int temp = 0;
- hisi_thermal_alarm_clear(data->regs, 1);
+ data->irq_handler(data);
- temp = hisi_thermal_get_temperature(data->regs);
+ hisi_thermal_get_temp(data, &temp);
if (temp >= sensor->thres_temp) {
dev_crit(&data->pdev->dev, "THERMAL ALARM: %d > %d\n",
thermal_zone_device_update(data->sensor.tzd,
THERMAL_EVENT_UNSPECIFIED);
- } else if (temp < sensor->thres_temp) {
+ } else {
dev_crit(&data->pdev->dev, "THERMAL ALARM stopped: %d < %d\n",
temp, sensor->thres_temp);
}
static int hisi_thermal_register_sensor(struct platform_device *pdev,
struct hisi_thermal_data *data,
- struct hisi_thermal_sensor *sensor,
- int index)
+ struct hisi_thermal_sensor *sensor)
{
int ret, i;
const struct thermal_trip *trip;
- sensor->id = index;
-
sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev,
sensor->id, data,
&hisi_of_thermal_ops);
}
static const struct of_device_id of_hisi_thermal_match[] = {
- { .compatible = "hisilicon,tsensor" },
+ {
+ .compatible = "hisilicon,tsensor",
+ .data = hi6220_thermal_probe
+ },
+ {
+ .compatible = "hisilicon,hi3660-tsensor",
+ .data = hi3660_thermal_probe
+ },
{ /* end */ }
};
MODULE_DEVICE_TABLE(of, of_hisi_thermal_match);
on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
}
-static int hisi_thermal_setup(struct hisi_thermal_data *data)
-{
- struct hisi_thermal_sensor *sensor = &data->sensor;
- int ret;
-
- /* enable clock for tsensor */
- ret = clk_prepare_enable(data->clk);
- if (ret)
- return ret;
-
- /* disable module firstly */
- hisi_thermal_reset_enable(data->regs, 0);
- hisi_thermal_enable(data->regs, 0);
-
- /* select sensor id */
- hisi_thermal_sensor_select(data->regs, sensor->id);
-
- /* setting the hdak time */
- hisi_thermal_hdak_set(data->regs, 0);
-
- /* setting lag value between current temp and the threshold */
- hisi_thermal_set_lag(data->regs, HISI_TEMP_LAG);
-
- /* enable for interrupt */
- hisi_thermal_alarm_set(data->regs, sensor->thres_temp);
-
- hisi_thermal_reset_set(data->regs, HISI_TEMP_RESET);
-
- /* enable module */
- hisi_thermal_reset_enable(data->regs, 1);
- hisi_thermal_enable(data->regs, 1);
-
- hisi_thermal_alarm_clear(data->regs, 0);
- hisi_thermal_alarm_enable(data->regs, 1);
-
- return 0;
-}
-
static int hisi_thermal_probe(struct platform_device *pdev)
{
struct hisi_thermal_data *data;
- struct resource *res;
+ int const (*platform_probe)(struct hisi_thermal_data *);
+ struct device *dev = &pdev->dev;
int ret;
- data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->pdev = pdev;
+ platform_set_drvdata(pdev, data);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- data->regs = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(data->regs)) {
- dev_err(&pdev->dev, "failed to get io address\n");
- return PTR_ERR(data->regs);
+ platform_probe = of_device_get_match_data(dev);
+ if (!platform_probe) {
+ dev_err(dev, "failed to get probe func\n");
+ return -EINVAL;
}
- data->irq = platform_get_irq(pdev, 0);
- if (data->irq < 0)
- return data->irq;
-
- platform_set_drvdata(pdev, data);
-
- data->clk = devm_clk_get(&pdev->dev, "thermal_clk");
- if (IS_ERR(data->clk)) {
- ret = PTR_ERR(data->clk);
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev,
- "failed to get thermal clk: %d\n", ret);
+ ret = platform_probe(data);
+ if (ret)
return ret;
- }
ret = hisi_thermal_register_sensor(pdev, data,
- &data->sensor,
- HISI_DEFAULT_SENSOR);
+ &data->sensor);
if (ret) {
- dev_err(&pdev->dev, "failed to register thermal sensor: %d\n",
- ret);
+ dev_err(dev, "failed to register thermal sensor: %d\n", ret);
return ret;
}
- ret = hisi_thermal_setup(data);
+ ret = data->enable_sensor(data);
if (ret) {
- dev_err(&pdev->dev, "Failed to setup the sensor: %d\n", ret);
+ dev_err(dev, "Failed to setup the sensor: %d\n", ret);
return ret;
}
- ret = devm_request_threaded_irq(&pdev->dev, data->irq, NULL,
- hisi_thermal_alarm_irq_thread,
- IRQF_ONESHOT, "hisi_thermal", data);
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to request alarm irq: %d\n", ret);
- return ret;
+ if (data->irq) {
+ ret = devm_request_threaded_irq(dev, data->irq, NULL,
+ hisi_thermal_alarm_irq_thread,
+ IRQF_ONESHOT, "hisi_thermal", data);
+ if (ret < 0) {
+ dev_err(dev, "failed to request alarm irq: %d\n", ret);
+ return ret;
+ }
}
hisi_thermal_toggle_sensor(&data->sensor, true);
struct hisi_thermal_sensor *sensor = &data->sensor;
hisi_thermal_toggle_sensor(sensor, false);
- hisi_thermal_disable_sensor(data);
+
+ data->disable_sensor(data);
return 0;
}
{
struct hisi_thermal_data *data = dev_get_drvdata(dev);
- hisi_thermal_disable_sensor(data);
+ data->disable_sensor(data);
return 0;
}
{
struct hisi_thermal_data *data = dev_get_drvdata(dev);
- return hisi_thermal_setup(data);
+ return data->enable_sensor(data);
}
#endif
projects / mirror_ubuntu-bionic-kernel.git / blobdiff