Re: [PATCH v4 3/5] thermal/drivers/mediatek/lvts_thermal: Add mt8192 support

[Chen-Yu Tsai]

On Wed, May 31, 2023 at 4:07 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@xxxxxxxxxxxxx> wrote:
>
> Il 30/05/23 21:51, Bernhard Rosenkränzer ha scritto:
> > From: Balsam CHIHI <bchihi@xxxxxxxxxxxx>
> >
> > Add LVTS Driver support for MT8192.
> >
> > Co-developed-by : Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
> > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
> > Signed-off-by: Balsam CHIHI <bchihi@xxxxxxxxxxxx>
> > Reviewed-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
> > Signed-off-by: Bernhard Rosenkränzer <bero@xxxxxxxxxxxx>
> > Reviewed-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
> > ---
> >   drivers/thermal/mediatek/lvts_thermal.c | 95 +++++++++++++++++++++++++
> >   1 file changed, 95 insertions(+)
> >
> > diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
> > index 5ea8a9d569ea6..d5e5214784ece 100644
> > --- a/drivers/thermal/mediatek/lvts_thermal.c
> > +++ b/drivers/thermal/mediatek/lvts_thermal.c
> > @@ -80,6 +80,7 @@
> >   #define LVTS_MSR_FILTERED_MODE              1
> >
> >   #define LVTS_HW_SHUTDOWN_MT8195             105000
> > +#define LVTS_HW_SHUTDOWN_MT8192              105000
> >
> >   static int golden_temp = LVTS_GOLDEN_TEMP_DEFAULT;
> >   static int coeff_b = LVTS_COEFF_B;
> > @@ -1280,6 +1281,88 @@ static const struct lvts_ctrl_data mt8195_lvts_ap_data_ctrl[] = {
> >       }
> >   };
> >
> > +static const struct lvts_ctrl_data mt8192_lvts_mcu_data_ctrl[] = {
> > +     {
> > +             .cal_offset = { 0x04, 0x08 },
> > +             .lvts_sensor = {
> > +                     { .dt_id = MT8192_MCU_BIG_CPU0 },
> > +                     { .dt_id = MT8192_MCU_BIG_CPU1 }
> > +             },
> > +             .num_lvts_sensor = 2,
> > +             .offset = 0x0,
> > +             .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT8192,
> > +             .mode = LVTS_MSR_FILTERED_MODE,
> > +     },
> > +     {
> > +             .cal_offset = { 0x0c, 0x10 },
> > +             .lvts_sensor = {
> > +                     { .dt_id = MT8192_MCU_BIG_CPU2 },
> > +                     { .dt_id = MT8192_MCU_BIG_CPU3 }
> > +             },
> > +             .num_lvts_sensor = 2,
> > +             .offset = 0x100,
> > +             .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT8192,
> > +             .mode = LVTS_MSR_FILTERED_MODE,
> > +     },
> > +     {
> > +             .cal_offset = { 0x14, 0x18, 0x1c, 0x20 },
> > +             .lvts_sensor = {
> > +                     { .dt_id = MT8192_MCU_LITTLE_CPU0 },
> > +                     { .dt_id = MT8192_MCU_LITTLE_CPU1 },
> > +                     { .dt_id = MT8192_MCU_LITTLE_CPU2 },
> > +                     { .dt_id = MT8192_MCU_LITTLE_CPU3 }
> > +             },
> > +             .num_lvts_sensor = 4,
> > +             .offset = 0x200,
> > +             .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT8192,
> > +             .mode = LVTS_MSR_FILTERED_MODE,
> > +     }
> > +};
> > +
> > +static const struct lvts_ctrl_data mt8192_lvts_ap_data_ctrl[] = {
> > +             {
> > +             .cal_offset = { 0x24, 0x28 },
> > +             .lvts_sensor = {
> > +                     { .dt_id = MT8192_AP_VPU0 },
> > +                     { .dt_id = MT8192_AP_VPU1 }
> > +             },
> > +             .num_lvts_sensor = 2,
> > +             .offset = 0x0,
> > +             .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT8192,
> > +     },
> > +     {
> > +             .cal_offset = { 0x2c, 0x30 },
> > +             .lvts_sensor = {
> > +                     { .dt_id = MT8192_AP_GPU0 },
> > +                     { .dt_id = MT8192_AP_GPU1 }
> > +             },
> > +             .num_lvts_sensor = 2,
> > +             .offset = 0x100,
> > +             .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT8192,
>
> I'm unable to get readings for the GPU sensors, didn't really check
> the others; `cat (xxxx)` gives a resource not available error, is that
> the same for you?!

That could be related to the filtered mode stuff from Nicolas?

> Regards,
> Angelo
>
> > +     },
> > +     {
> > +             .cal_offset = { 0x34, 0x38 },
> > +             .lvts_sensor = {
> > +                     { .dt_id = MT8192_AP_INFRA },
> > +                     { .dt_id = MT8192_AP_CAM },
> > +             },
> > +             .num_lvts_sensor = 2,
> > +             .offset = 0x200,
> > +             .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT8192,
> > +     },
> > +     {
> > +             .cal_offset = { 0x3c, 0x40, 0x44 },
> > +             .lvts_sensor = {
> > +                     { .dt_id = MT8192_AP_MD0 },
> > +                     { .dt_id = MT8192_AP_MD1 },
> > +                     { .dt_id = MT8192_AP_MD2 }
> > +             },
> > +             .num_lvts_sensor = 3,
> > +             .offset = 0x300,
> > +             .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT8192,
> > +     }
> > +};
> > +
> >   static const struct lvts_data mt8195_lvts_mcu_data = {
> >       .lvts_ctrl      = mt8195_lvts_mcu_data_ctrl,
> >       .num_lvts_ctrl  = ARRAY_SIZE(mt8195_lvts_mcu_data_ctrl),
> > @@ -1290,9 +1373,21 @@ static const struct lvts_data mt8195_lvts_ap_data = {
> >       .num_lvts_ctrl  = ARRAY_SIZE(mt8195_lvts_ap_data_ctrl),
> >   };
> >
> > +static const struct lvts_data mt8192_lvts_mcu_data = {
> > +     .lvts_ctrl      = mt8192_lvts_mcu_data_ctrl,
> > +     .num_lvts_ctrl  = ARRAY_SIZE(mt8192_lvts_mcu_data_ctrl),
> > +};
> > +
> > +static const struct lvts_data mt8192_lvts_ap_data = {
> > +     .lvts_ctrl      = mt8192_lvts_ap_data_ctrl,
> > +     .num_lvts_ctrl  = ARRAY_SIZE(mt8192_lvts_ap_data_ctrl),
> > +};
> > +
> >   static const struct of_device_id lvts_of_match[] = {
> >       { .compatible = "mediatek,mt8195-lvts-mcu", .data = &mt8195_lvts_mcu_data },
> >       { .compatible = "mediatek,mt8195-lvts-ap", .data = &mt8195_lvts_ap_data },
> > +     { .compatible = "mediatek,mt8192-lvts-mcu", .data = &mt8192_lvts_mcu_data },
> > +     { .compatible = "mediatek,mt8192-lvts-ap", .data = &mt8192_lvts_ap_data },
> >       {},
> >   };
> >   MODULE_DEVICE_TABLE(of, lvts_of_match);
>
>