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From:   <michael.kao@mediatek.com>
To:     =Zhang Rui <rui.zhang@intel.com>,
        =Eduardo Valentin <edubezval@gmail.com>,
        =Daniel Lezcano <daniel.lezcano@linaro.org>,
        =Rob Herring <robh+dt@kernel.org>,
        =Mark Rutland <mark.rutland@arm.com>,
        =Matthias Brugger <matthias.bgg@gmail.com>
CC:     <linux-pm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        <srv_heupstream@mediatek.com>,
        Michael Kao <michael.kao@mediatek.com>
Subject: [PATCH 4/7] thermal: mediatek: add thermal controller offset
Date:   Fri, 1 Feb 2019 15:38:10 +0800
Message-ID: <1549006693-11659-5-git-send-email-michael.kao@mediatek.com>
In-Reply-To: <1549006693-11659-1-git-send-email-michael.kao@mediatek.com>
References: <1549006693-11659-1-git-send-email-michael.kao@mediatek.com>
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From: Michael Kao <michael.kao@mediatek.com>

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