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Date: Tue, 5 Feb 2019 16:53:03 -0800
From: Eduardo Valentin <edubezval@...il.com>
To: michael.kao@...iatek.com
Cc: =Zhang Rui <rui.zhang@...el.com>,
=Daniel Lezcano <daniel.lezcano@...aro.org>,
=Rob Herring <robh+dt@...nel.org>,
=Mark Rutland <mark.rutland@....com>,
=Matthias Brugger <matthias.bgg@...il.com>,
linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, srv_heupstream@...iatek.com
Subject: Re: [PATCH 4/7] thermal: mediatek: add thermal controller offset
On Fri, Feb 01, 2019 at 03:38:10PM +0800, michael.kao@...iatek.com wrote:
> From: Michael Kao <michael.kao@...iatek.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@...iatek.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;
This void * has to be at least __iomem, right?
See the report of kbuild bot, fix it and send it back.
> +
> 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
>
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