git.openwrt.org Git - openwrt/staging/981213.git/blob

   1 From c4eff784465f88218dc5eb51320320464db83d3f Mon Sep 17 00:00:00 2001
   2 From: Fabien Parent <fparent@baylibre.com>
   3 Date: Fri, 27 Jan 2023 16:44:44 +0100
   4 Subject: [PATCH 12/42] thermal/drivers/mediatek: Add support for MT8365 SoC
   5
   6 MT8365 is similar to the other SoCs supported by the driver. It has only
   7 one bank and 3 actual sensors that can be multiplexed. There is another
   8 one sensor that does not have usable data.
   9
  10 Signed-off-by: Fabien Parent <fparent@baylibre.com>
  11 Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
  12 Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
  13 Link: https://lore.kernel.org/r/20221018-up-i350-thermal-bringup-v9-3-55a1ae14af74@baylibre.com
  14 Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
  15 ---
  16  drivers/thermal/mediatek/auxadc_thermal.c | 68 +++++++++++++++++++++++
  17  1 file changed, 68 insertions(+)
  18
  19 --- a/drivers/thermal/mediatek/auxadc_thermal.c
  20 +++ b/drivers/thermal/mediatek/auxadc_thermal.c
  21 @@ -31,6 +31,7 @@
  22  #define AUXADC_CON2_V          0x010
  23  #define AUXADC_DATA(channel)   (0x14 + (channel) * 4)
  24
  25 +#define APMIXED_SYS_TS_CON0    0x600
  26  #define APMIXED_SYS_TS_CON1    0x604
  27
  28  /* Thermal Controller Registers */
  29 @@ -281,6 +282,17 @@ enum mtk_thermal_version {
  30  /* The calibration coefficient of sensor  */
  31  #define MT7986_CALIBRATION             165
  32
  33 +/* MT8365 */
  34 +#define MT8365_TEMP_AUXADC_CHANNEL 11
  35 +#define MT8365_CALIBRATION 164
  36 +#define MT8365_NUM_CONTROLLER 1
  37 +#define MT8365_NUM_BANKS 1
  38 +#define MT8365_NUM_SENSORS 3
  39 +#define MT8365_NUM_SENSORS_PER_ZONE 3
  40 +#define MT8365_TS1 0
  41 +#define MT8365_TS2 1
  42 +#define MT8365_TS3 2
  43 +
  44  struct mtk_thermal;
  45
  46  struct thermal_bank_cfg {
  47 @@ -435,6 +447,24 @@ static const int mt7986_mux_values[MT798
  48  static const int mt7986_vts_index[MT7986_NUM_SENSORS] = { VTS1 };
  49  static const int mt7986_tc_offset[MT7986_NUM_CONTROLLER] = { 0x0, };
  50
  51 +/* MT8365 thermal sensor data */
  52 +static const int mt8365_bank_data[MT8365_NUM_SENSORS] = {
  53 +       MT8365_TS1, MT8365_TS2, MT8365_TS3
  54 +};
  55 +
  56 +static const int mt8365_msr[MT8365_NUM_SENSORS_PER_ZONE] = {
  57 +       TEMP_MSR0, TEMP_MSR1, TEMP_MSR2
  58 +};
  59 +
  60 +static const int mt8365_adcpnp[MT8365_NUM_SENSORS_PER_ZONE] = {
  61 +       TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2
  62 +};
  63 +
  64 +static const int mt8365_mux_values[MT8365_NUM_SENSORS] = { 0, 1, 2 };
  65 +static const int mt8365_tc_offset[MT8365_NUM_CONTROLLER] = { 0 };
  66 +
  67 +static const int mt8365_vts_index[MT8365_NUM_SENSORS] = { VTS1, VTS2, VTS3 };
  68 +
  69  /*
  70   * The MT8173 thermal controller has four banks. Each bank can read up to
  71   * four temperature sensors simultaneously. The MT8173 has a total of 5
  72 @@ -510,6 +540,40 @@ static const struct mtk_thermal_data mt2
  73  };
  74
  75  /*
  76 + * The MT8365 thermal controller has one bank, which can read up to
  77 + * four temperature sensors simultaneously. The MT8365 has a total of 3
  78 + * temperature sensors.
  79 + *
  80 + * The thermal core only gets the maximum temperature of this one bank,
  81 + * so the bank concept wouldn't be necessary here. However, the SVS (Smart
  82 + * Voltage Scaling) unit makes its decisions based on the same bank
  83 + * data.
  84 + */
  85 +static const struct mtk_thermal_data mt8365_thermal_data = {
  86 +       .auxadc_channel = MT8365_TEMP_AUXADC_CHANNEL,
  87 +       .num_banks = MT8365_NUM_BANKS,
  88 +       .num_sensors = MT8365_NUM_SENSORS,
  89 +       .vts_index = mt8365_vts_index,
  90 +       .cali_val = MT8365_CALIBRATION,
  91 +       .num_controller = MT8365_NUM_CONTROLLER,
  92 +       .controller_offset = mt8365_tc_offset,
  93 +       .need_switch_bank = false,
  94 +       .bank_data = {
  95 +               {
  96 +                       .num_sensors = MT8365_NUM_SENSORS,
  97 +                       .sensors = mt8365_bank_data
  98 +               },
  99 +       },
 100 +       .msr = mt8365_msr,
 101 +       .adcpnp = mt8365_adcpnp,
 102 +       .sensor_mux_values = mt8365_mux_values,
 103 +       .version = MTK_THERMAL_V1,
 104 +       .apmixed_buffer_ctl_reg = APMIXED_SYS_TS_CON0,
 105 +       .apmixed_buffer_ctl_mask = (u32) ~GENMASK(29, 28),
 106 +       .apmixed_buffer_ctl_set = 0,
 107 +};
 108 +
 109 +/*
 110   * The MT2712 thermal controller has one bank, which can read up to
 111   * four temperature sensors simultaneously. The MT2712 has a total of 4
 112   * temperature sensors.
 113 @@ -1080,6 +1144,10 @@ static const struct of_device_id mtk_the
 114         {
 115                 .compatible = "mediatek,mt8183-thermal",
 116                 .data = (void *)&mt8183_thermal_data,
 117 +       },
 118 +       {
 119 +               .compatible = "mediatek,mt8365-thermal",
 120 +               .data = (void *)&mt8365_thermal_data,
 121         }, {
 122         },
 123  };