BACKPORT: thermal/drivers/hisi: Encapsulate register writes into helpers

Hopefully, the function name can help to clarify the semantic of the operations
when writing in the register.

Change-Id: I2f5c5f20c1f52763b94e4998f1c45d118b35c53e
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
(cherry picked from commit 1e11b014271ceccb5ea04ae58f4829ac8209a86d)
Signed-off-by: Kevin Wangtao <kevin.wangtao@hisilicon.com>

diff --git a/drivers/thermal/hisi_thermal.c b/drivers/thermal/hisi_thermal.c
index 0c2966c285b150ec1f68f327673bedaaaef84899..a803043f37ae9f733ca2a65a1106966da4cae8c5 100644 (file)
--- a/drivers/thermal/hisi_thermal.c
+++ b/drivers/thermal/hisi_thermal.c
@@ -26,6 +26,7 @@
 
 #include "thermal_core.h"
 
+#define TEMP0_LAG                      (0x0)
 #define TEMP0_TH                       (0x4)
 #define TEMP0_RST_TH                   (0x8)
 #define TEMP0_CFG                      (0xC)
@@ -96,6 +97,56 @@ static inline long hisi_thermal_round_temp(int temp)
                hisi_thermal_temp_to_step(temp));
 }
 
+static inline void hisi_thermal_set_lag(void __iomem *addr, int value)
+{
+       writel(value, addr + TEMP0_LAG);
+}
+
+static inline void hisi_thermal_alarm_clear(void __iomem *addr, int value)
+{
+       writel(value, addr + TEMP0_INT_CLR);
+}
+
+static inline void hisi_thermal_alarm_enable(void __iomem *addr, int value)
+{
+       writel(value, addr + TEMP0_INT_EN);
+}
+
+static inline void hisi_thermal_alarm_set(void __iomem *addr, int temp)
+{
+       writel(hisi_thermal_temp_to_step(temp) | 0x0FFFFFF00, addr + TEMP0_TH);
+}
+
+static inline void hisi_thermal_reset_set(void __iomem *addr, int temp)
+{
+       writel(hisi_thermal_temp_to_step(temp), addr + TEMP0_RST_TH);
+}
+
+static inline void hisi_thermal_reset_enable(void __iomem *addr, int value)
+{
+       writel(value, addr + TEMP0_RST_MSK);
+}
+
+static inline void hisi_thermal_enable(void __iomem *addr, int value)
+{
+       writel(value, addr + TEMP0_EN);
+}
+
+static inline void hisi_thermal_sensor_select(void __iomem *addr, int sensor)
+{
+       writel((sensor << 12), addr + TEMP0_CFG);
+}
+
+static inline int hisi_thermal_get_temperature(void __iomem *addr)
+{
+       return hisi_thermal_step_to_temp(readl(addr + TEMP0_VALUE));
+}
+
+static inline void hisi_thermal_hdak_set(void __iomem *addr, int value)
+{
+       writel(value, addr + TEMP0_CFG);
+}
+
 static long hisi_thermal_get_sensor_temp(struct hisi_thermal_data *data,
                                         struct hisi_thermal_sensor *sensor)
 {
@@ -104,22 +155,21 @@ static long hisi_thermal_get_sensor_temp(struct hisi_thermal_data *data,
        mutex_lock(&data->thermal_lock);
 
        /* disable interrupt */
-       writel(0x0, data->regs + TEMP0_INT_EN);
-       writel(0x1, data->regs + TEMP0_INT_CLR);
+       hisi_thermal_alarm_enable(data->regs, 0);
+       hisi_thermal_alarm_clear(data->regs, 1);
 
        /* disable module firstly */
-       writel(0x0, data->regs + TEMP0_EN);
+       hisi_thermal_enable(data->regs, 0);
 
        /* select sensor id */
-       writel((sensor->id << 12), data->regs + TEMP0_CFG);
+       hisi_thermal_sensor_select(data->regs, sensor->id);
 
        /* enable module */
-       writel(0x1, data->regs + TEMP0_EN);
+       hisi_thermal_enable(data->regs, 1);
 
        usleep_range(3000, 5000);
 
-       val = readl(data->regs + TEMP0_VALUE);
-       val = hisi_thermal_step_to_temp(val);
+       val = hisi_thermal_get_temperature(data->regs);
 
        mutex_unlock(&data->thermal_lock);
 
@@ -136,28 +186,26 @@ static void hisi_thermal_enable_bind_irq_sensor
        sensor = &data->sensors;
 
        /* setting the hdak time */
-       writel(0x0, data->regs + TEMP0_CFG);
+       hisi_thermal_hdak_set(data->regs, 0);
 
        /* disable module firstly */
-       writel(0x0, data->regs + TEMP0_RST_MSK);
-       writel(0x0, data->regs + TEMP0_EN);
+       hisi_thermal_reset_enable(data->regs, 0);
+       hisi_thermal_enable(data->regs, 0);
 
        /* select sensor id */
-       writel((sensor->id << 12), data->regs + TEMP0_CFG);
+       hisi_thermal_sensor_select(data->regs, sensor->id);
 
        /* enable for interrupt */
-       writel(hisi_thermal_temp_to_step(sensor->thres_temp) | 0x0FFFFFF00,
-              data->regs + TEMP0_TH);
+       hisi_thermal_alarm_set(data->regs, sensor->thres_temp);
 
-       writel(hisi_thermal_temp_to_step(HISI_TEMP_RESET),
-              data->regs + TEMP0_RST_TH);
+       hisi_thermal_reset_set(data->regs, HISI_TEMP_RESET);
 
        /* enable module */
-       writel(0x1, data->regs + TEMP0_RST_MSK);
-       writel(0x1, data->regs + TEMP0_EN);
+       hisi_thermal_reset_enable(data->regs, 1);
+       hisi_thermal_enable(data->regs, 1);
 
-       writel(0x0, data->regs + TEMP0_INT_CLR);
-       writel(0x1, data->regs + TEMP0_INT_EN);
+       hisi_thermal_alarm_clear(data->regs, 0);
+       hisi_thermal_alarm_enable(data->regs, 1);
 
        usleep_range(3000, 5000);
 
@@ -169,9 +217,9 @@ static void hisi_thermal_disable_sensor(struct hisi_thermal_data *data)
        mutex_lock(&data->thermal_lock);
 
        /* disable sensor module */
-       writel(0x0, data->regs + TEMP0_INT_EN);
-       writel(0x0, data->regs + TEMP0_RST_MSK);
-       writel(0x0, data->regs + TEMP0_EN);
+       hisi_thermal_enable(data->regs, 0);
+       hisi_thermal_alarm_enable(data->regs, 0);
+       hisi_thermal_reset_enable(data->regs, 0);
 
        mutex_unlock(&data->thermal_lock);
 }