thermal: rockchip: Support the RK3368 SoCs in thermal driver

The RK3368 SoCs support to 2 channel TS-ADC, the temperature criteria
of each channel can be configurable.

The system has two Temperature Sensors, channel 0 is for CPU,
and channel 1 is for GPU.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index 73d47f8461a81f1be9d6f577d89c276ee64efabd..e845841ab036cc82033d0a6829058a0f15f2543e 100644 (file)
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -1,6 +1,9 @@
 /*
  * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
  *
+ * Copyright (c) 2015, Fuzhou Rockchip Electronics Co., Ltd
+ * Caesar Wang <wxt@rock-chips.com>
+ *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
@@ -153,6 +156,8 @@ struct rockchip_thermal_data {
 #define TSADCV2_INT_PD_CLEAR_MASK              ~BIT(8)
 
 #define TSADCV2_DATA_MASK                      0xfff
+#define TSADCV3_DATA_MASK                      0x3ff
+
 #define TSADCV2_HIGHT_INT_DEBOUNCE_COUNT       4
 #define TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT     4
 #define TSADCV2_AUTO_PERIOD_TIME               250 /* msec */
@@ -201,6 +206,45 @@ static const struct tsadc_table v2_code_table[] = {
        {3421, 125000},
 };
 
+static const struct tsadc_table v3_code_table[] = {
+       {0, -40000},
+       {106, -40000},
+       {108, -35000},
+       {110, -30000},
+       {112, -25000},
+       {114, -20000},
+       {116, -15000},
+       {118, -10000},
+       {120, -5000},
+       {122, 0},
+       {124, 5000},
+       {126, 10000},
+       {128, 15000},
+       {130, 20000},
+       {132, 25000},
+       {134, 30000},
+       {136, 35000},
+       {138, 40000},
+       {140, 45000},
+       {142, 50000},
+       {144, 55000},
+       {146, 60000},
+       {148, 65000},
+       {150, 70000},
+       {152, 75000},
+       {154, 80000},
+       {156, 85000},
+       {158, 90000},
+       {160, 95000},
+       {162, 100000},
+       {163, 105000},
+       {165, 110000},
+       {167, 115000},
+       {169, 120000},
+       {171, 125000},
+       {TSADCV3_DATA_MASK, 125000},
+};
+
 static u32 rk_tsadcv2_temp_to_code(struct chip_tsadc_table table,
                                   int temp)
 {
@@ -409,11 +453,39 @@ static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
        },
 };
 
+static const struct rockchip_tsadc_chip rk3368_tsadc_data = {
+       .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
+       .chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */
+       .chn_num = 2, /* two channels for tsadc */
+
+       .tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
+       .tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
+       .tshut_temp = 95000,
+
+       .initialize = rk_tsadcv2_initialize,
+       .irq_ack = rk_tsadcv2_irq_ack,
+       .control = rk_tsadcv2_control,
+       .get_temp = rk_tsadcv2_get_temp,
+       .set_tshut_temp = rk_tsadcv2_tshut_temp,
+       .set_tshut_mode = rk_tsadcv2_tshut_mode,
+
+       .table = {
+               .id = v3_code_table,
+               .length = ARRAY_SIZE(v3_code_table),
+               .data_mask = TSADCV3_DATA_MASK,
+               .mode = ADC_INCREMENT,
+       },
+};
+
 static const struct of_device_id of_rockchip_thermal_match[] = {
        {
                .compatible = "rockchip,rk3288-tsadc",
                .data = (void *)&rk3288_tsadc_data,
        },
+       {
+               .compatible = "rockchip,rk3368-tsadc",
+               .data = (void *)&rk3368_tsadc_data,
+       },
        { /* end */ },
 };
 MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match);