[PATCH 4/7] thermal: mediatek: add thermal controller offset

michael.kao
2019-02-01T07:38:36Z

One thermal controller can read four sensors at most,
so we need to add controller_offset for the project with
more than four sensors to reuse the same register settings.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
---
drivers/thermal/mtk_thermal.c | 79 +++++++++++++++++++++++++++++--------------
1 file changed, 54 insertions(+), 25 deletions(-)

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 45c6587..e5cf3f4 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -105,6 +105,9 @@
/* The number of sensing points per bank */
#define MT8173_NUM_SENSORS_PER_ZONE 4

+/* The number of controller in the MT8173 */
+#define MT8173_NUM_CONTROLLER 1
+
/* The calibration coefficient of sensor */
#define MT8173_CALIBRATION 165

@@ -150,6 +153,9 @@ enum {
/* The number of sensing points per bank */
#define MT2701_NUM_SENSORS_PER_ZONE 3

+/* The number of controller in the MT2701 */
+#define MT2701_NUM_CONTROLLER 1
+
/* The calibration coefficient of sensor */
#define MT2701_CALIBRATION 165

@@ -168,6 +174,9 @@ enum {
/* The number of sensing points per bank */
#define MT2712_NUM_SENSORS_PER_ZONE 4

+/* The number of controller in the MT2712 */
+#define MT2712_NUM_CONTROLLER 1
+
/* The calibration coefficient of sensor */
#define MT2712_CALIBRATION 165

@@ -176,6 +185,7 @@ enum {
#define MT7622_NUM_ZONES 1
#define MT7622_NUM_SENSORS_PER_ZONE 1
#define MT7622_TS1 0
+#define MT7622_NUM_CONTROLLER 1

/* The calibration coefficient of sensor */
#define MT7622_CALIBRATION 165
@@ -201,6 +211,8 @@ struct mtk_thermal_data {
const int *msr;
const int *adcpnp;
const int cali_val;
+ const int num_controller;
+ const int *controller_offset;
struct thermal_bank_cfg bank_data[];
};

@@ -240,6 +252,7 @@ struct mtk_thermal {
};

static const int mt8173_mux_values[MT8173_NUM_SENSORS] = { 0, 1, 2, 3, 16 };
+static const int mt8173_tc_offset[MT8173_NUM_CONTROLLER] = { 0x0, };

static const int mt8173_vts_index[MT8173_NUM_SENSORS] = {
VTS1, VTS2, VTS3, VTS4, VTSABB
@@ -259,6 +272,7 @@ struct mtk_thermal {
};

static const int mt2701_mux_values[MT2701_NUM_SENSORS] = { 0, 1, 16 };
+static const int mt2701_tc_offset[MT2701_NUM_CONTROLLER] = { 0x0, };

static const int mt2701_vts_index[MT2701_NUM_SENSORS] = {
VTS1, VTS2, VTS3
@@ -278,6 +292,7 @@ struct mtk_thermal {
};

static const int mt2712_mux_values[MT2712_NUM_SENSORS] = { 0, 1, 2, 3 };
+static const int mt2712_tc_offset[MT2712_NUM_CONTROLLER] = { 0x0, };

static const int mt2712_vts_index[MT2712_NUM_SENSORS] = {
VTS1, VTS2, VTS3, VTS4
@@ -289,6 +304,7 @@ struct mtk_thermal {
static const int mt7622_adcpnp[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, };
static const int mt7622_mux_values[MT7622_NUM_SENSORS] = { 0, };
static const int mt7622_vts_index[MT7622_NUM_SENSORS] = { VTS1 };
+static const int mt7622_tc_offset[MT7622_NUM_CONTROLLER] = { 0x0, };

/**
* The MT8173 thermal controller has four banks. Each bank can read up to
@@ -309,6 +325,8 @@ struct mtk_thermal {
.num_sensors = MT8173_NUM_SENSORS,
.vts_index = mt8173_vts_index,
.cali_val = MT8173_CALIBRATION,
+ .num_controller = MT8173_NUM_CONTROLLER,
+ .controller_offset = mt8173_tc_offset,
.bank_data = {
{
.num_sensors = 2,
@@ -345,6 +363,8 @@ struct mtk_thermal {
.num_sensors = MT2701_NUM_SENSORS,
.vts_index = mt2701_vts_index,
.cali_val = MT2701_CALIBRATION,
+ .num_controller = MT2701_NUM_CONTROLLER,
+ .controller_offset = mt2701_tc_offset,
.bank_data = {
{
.num_sensors = 3,
@@ -372,6 +392,8 @@ struct mtk_thermal {
.num_sensors = MT2712_NUM_SENSORS,
.vts_index = mt2712_vts_index,
.cali_val = MT2712_CALIBRATION,
+ .num_controller = MT2712_NUM_CONTROLLER,
+ .controller_offset = mt2712_tc_offset,
.bank_data = {
{
.num_sensors = 4,
@@ -393,6 +415,8 @@ struct mtk_thermal {
.num_sensors = MT7622_NUM_SENSORS,
.vts_index = mt7622_vts_index,
.cali_val = MT7622_CALIBRATION,
+ .num_controller = MT7622_NUM_CONTROLLER,
+ .controller_offset = mt7622_tc_offset,
.bank_data = {
{
.num_sensors = 1,
@@ -523,19 +547,23 @@ static int mtk_read_temp(void *data, int *temperature)
};

static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
- u32 apmixed_phys_base, u32 auxadc_phys_base)
+ u32 apmixed_phys_base, u32 auxadc_phys_base,
+ int ctrl_id)
{
struct mtk_thermal_bank *bank = &mt->banks[num];
const struct mtk_thermal_data *conf = mt->conf;
int i;

+ int offset = mt->conf->controller_offset[ctrl_id];
+ void *controller_base = mt->thermal_base + offset;
+
bank->id = num;
bank->mt = mt;

mtk_thermal_get_bank(bank);

/* bus clock 66M counting unit is 12 * 15.15ns * 256 = 46.540us */
- writel(TEMP_MONCTL1_PERIOD_UNIT(12), mt->thermal_base + TEMP_MONCTL1);
+ writel(TEMP_MONCTL1_PERIOD_UNIT(12), controller_base + TEMP_MONCTL1);

/*
* filt interval is 1 * 46.540us = 46.54us,
@@ -543,21 +571,21 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
*/
writel(TEMP_MONCTL2_FILTER_INTERVAL(1) |
TEMP_MONCTL2_SENSOR_INTERVAL(429),
- mt->thermal_base + TEMP_MONCTL2);
+ controller_base + TEMP_MONCTL2);

/* poll is set to 10u */
writel(TEMP_AHBPOLL_ADC_POLL_INTERVAL(768),
- mt->thermal_base + TEMP_AHBPOLL);
+ controller_base + TEMP_AHBPOLL);

/* temperature sampling control, 1 sample */
- writel(0x0, mt->thermal_base + TEMP_MSRCTL0);
+ writel(0x0, controller_base + TEMP_MSRCTL0);

/* exceed this polling time, IRQ would be inserted */
- writel(0xffffffff, mt->thermal_base + TEMP_AHBTO);
+ writel(0xffffffff, controller_base + TEMP_AHBTO);

/* number of interrupts per event, 1 is enough */
- writel(0x0, mt->thermal_base + TEMP_MONIDET0);
- writel(0x0, mt->thermal_base + TEMP_MONIDET1);
+ writel(0x0, controller_base + TEMP_MONIDET0);
+ writel(0x0, controller_base + TEMP_MONIDET1);

/*
* The MT8173 thermal controller does not have its own ADC. Instead it
@@ -572,44 +600,44 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
* this value will be stored to TEMP_PNPMUXADDR (TEMP_SPARE0)
* automatically by hw
*/
- writel(BIT(conf->auxadc_channel), mt->thermal_base + TEMP_ADCMUX);
+ writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCMUX);

/* AHB address for auxadc mux selection */
writel(auxadc_phys_base + AUXADC_CON1_CLR_V,
- mt->thermal_base + TEMP_ADCMUXADDR);
+ controller_base + TEMP_ADCMUXADDR);

/* AHB address for pnp sensor mux selection */
writel(apmixed_phys_base + APMIXED_SYS_TS_CON1,
- mt->thermal_base + TEMP_PNPMUXADDR);
+ controller_base + TEMP_PNPMUXADDR);

/* AHB value for auxadc enable */
- writel(BIT(conf->auxadc_channel), mt->thermal_base + TEMP_ADCEN);
+ writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN);

/* AHB address for auxadc enable (channel 0 immediate mode selected) */
writel(auxadc_phys_base + AUXADC_CON1_SET_V,
- mt->thermal_base + TEMP_ADCENADDR);
+ controller_base + TEMP_ADCENADDR);

/* AHB address for auxadc valid bit */
writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel),
- mt->thermal_base + TEMP_ADCVALIDADDR);
+ controller_base + TEMP_ADCVALIDADDR);

/* AHB address for auxadc voltage output */
writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel),
- mt->thermal_base + TEMP_ADCVOLTADDR);
+ controller_base + TEMP_ADCVOLTADDR);

/* read valid & voltage are at the same register */
- writel(0x0, mt->thermal_base + TEMP_RDCTRL);
+ writel(0x0, controller_base + TEMP_RDCTRL);

/* indicate where the valid bit is */
writel(TEMP_ADCVALIDMASK_VALID_HIGH | TEMP_ADCVALIDMASK_VALID_POS(12),
- mt->thermal_base + TEMP_ADCVALIDMASK);
+ controller_base + TEMP_ADCVALIDMASK);

/* no shift */
- writel(0x0, mt->thermal_base + TEMP_ADCVOLTAGESHIFT);
+ writel(0x0, controller_base + TEMP_ADCVOLTAGESHIFT);

/* enable auxadc mux write transaction */
writel(TEMP_ADCWRITECTRL_ADC_MUX_WRITE,
- mt->thermal_base + TEMP_ADCWRITECTRL);
+ controller_base + TEMP_ADCWRITECTRL);

for (i = 0; i < conf->bank_data[num].num_sensors; i++)
writel(conf->sensor_mux_values[conf->bank_data[num].sensors[i]],
@@ -617,11 +645,11 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num,
conf->adcpnp[conf->bank_data[num].sensors[i]]);

writel((1 << conf->bank_data[num].num_sensors) - 1,
- mt->thermal_base + TEMP_MONCTL0);
+ controller_base + TEMP_MONCTL0);

writel(TEMP_ADCWRITECTRL_ADC_PNP_WRITE |
TEMP_ADCWRITECTRL_ADC_MUX_WRITE,
- mt->thermal_base + TEMP_ADCWRITECTRL);
+ controller_base + TEMP_ADCWRITECTRL);

mtk_thermal_put_bank(bank);
}
@@ -737,7 +765,7 @@ static int mtk_thermal_get_calibration_data(struct device *dev,

static int mtk_thermal_probe(struct platform_device *pdev)
{
- int ret, i;
+ int ret, i, ctrl_id;
struct device_node *auxadc, *apmixedsys, *np = pdev->dev.of_node;
struct mtk_thermal *mt;
struct resource *res;
@@ -817,9 +845,10 @@ static int mtk_thermal_probe(struct platform_device *pdev)
goto err_disable_clk_auxadc;
}

- for (i = 0; i < mt->conf->num_banks; i++)
- mtk_thermal_init_bank(mt, i, apmixed_phys_base,
- auxadc_phys_base);
+ for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++)
+ for (i = 0; i < mt->conf->num_banks; i++)
+ mtk_thermal_init_bank(mt, i, apmixed_phys_base,
+ auxadc_phys_base, ctrl_id);

platform_set_drvdata(pdev, mt);

--
1.9.1