[PATCH v9 0/5] thermal: mediatek: Add support for MT8365 SoC

[PATCH v9 0/5] thermal: mediatek: Add support for MT8365 SoC

[Amjad Ouled-Ameur]

This patchset adds thermal support for MT8365 SoC.

MT8365 has 4 thermal sensors, one for CPUs and the rest for debug/dev
purposes. The CPU thermal zone uses passive cooling device with
CPU{0..3}.

Changes in v9:
- Use delay between bank init and the thermal zone device register.
- Link to v8: https://lore.kernel.org/r/20221018-up-i350-thermal-bringup-v8-0-23e8fbb08837@baylibre.com

Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
---
Amjad Ouled-Ameur (2):
      thermal: mediatek: add callback for raw to mcelsius conversion
      thermal: mediatek: add delay after thermal banks initialization

Fabien Parent (2):
      dt-bindings: thermal: mediatek: add binding documentation for MT8365 SoC
      thermal: mediatek: add support for MT8365 SoC

Markus Schneider-Pargmann (1):
      thermal: mediatek: control buffer enablement tweaks

 .../bindings/thermal/mediatek-thermal.txt          |   1 +
 drivers/thermal/mtk_thermal.c                      | 117 +++++++++++++++++----
 2 files changed, 96 insertions(+), 22 deletions(-)
---
base-commit: a2c81dc59d41e92362ab7d41d0c15471ea50637d
change-id: 20221018-up-i350-thermal-bringup-ad386d37056f

Best regards,
-- 
Amjad Ouled-Ameur <aouledameur@baylibre.com>

[PATCH v9 1/5] dt-bindings: thermal: mediatek: add binding documentation for MT8365 SoC

[Amjad Ouled-Ameur]

From: Fabien Parent <fparent@baylibre.com>

Add the binding documentation for the thermal support on MT8365 SoC.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/thermal/mediatek-thermal.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
index 38b32bb447e3..ac39c7156fde 100644
--- a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
+++ b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
@@ -16,6 +16,7 @@ Required properties:
   - "mediatek,mt7981-thermal", "mediatek,mt7986-thermal" : For MT7981 SoC
   - "mediatek,mt7986-thermal" : For MT7986 SoC
   - "mediatek,mt8183-thermal" : For MT8183 family of SoCs
+  - "mediatek,mt8365-thermal" : For MT8365 family of SoCs
   - "mediatek,mt8516-thermal", "mediatek,mt2701-thermal : For MT8516 family of SoCs
 - reg: Address range of the thermal controller
 - interrupts: IRQ for the thermal controller

-- 
2.39.1

[PATCH v9 2/5] thermal: mediatek: control buffer enablement tweaks

[Amjad Ouled-Ameur]

From: Markus Schneider-Pargmann <msp@baylibre.com>

Add logic in order to be able to turn on the control buffer on MT8365.
This change now allows to have control buffer support for MTK_THERMAL_V1,
and it allows to define the register offset, and mask used to enable it.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/thermal/mtk_thermal.c | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 8440692e3890..d8ddceb75372 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -271,6 +271,9 @@ struct mtk_thermal_data {
 	bool need_switch_bank;
 	struct thermal_bank_cfg bank_data[MAX_NUM_ZONES];
 	enum mtk_thermal_version version;
+	u32 apmixed_buffer_ctl_reg;
+	u32 apmixed_buffer_ctl_mask;
+	u32 apmixed_buffer_ctl_set;
 };
 
 struct mtk_thermal {
@@ -514,6 +517,9 @@ static const struct mtk_thermal_data mt7622_thermal_data = {
 	.adcpnp = mt7622_adcpnp,
 	.sensor_mux_values = mt7622_mux_values,
 	.version = MTK_THERMAL_V2,
+	.apmixed_buffer_ctl_reg = APMIXED_SYS_TS_CON1,
+	.apmixed_buffer_ctl_mask = GENMASK(31, 6) | BIT(3),
+	.apmixed_buffer_ctl_set = BIT(0),
 };
 
 /*
@@ -963,14 +969,18 @@ static const struct of_device_id mtk_thermal_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, mtk_thermal_of_match);
 
-static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base)
+static void mtk_thermal_turn_on_buffer(struct mtk_thermal *mt,
+				       void __iomem *apmixed_base)
 {
-	int tmp;
+	u32 tmp;
+
+	if (!mt->conf->apmixed_buffer_ctl_reg)
+		return;
 
-	tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1);
-	tmp &= ~(0x37);
-	tmp |= 0x1;
-	writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1);
+	tmp = readl(apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
+	tmp &= mt->conf->apmixed_buffer_ctl_mask;
+	tmp |= mt->conf->apmixed_buffer_ctl_set;
+	writel(tmp, apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
 	udelay(200);
 }
 
@@ -1070,8 +1080,9 @@ static int mtk_thermal_probe(struct platform_device *pdev)
 		goto err_disable_clk_auxadc;
 	}
 
+	mtk_thermal_turn_on_buffer(mt, apmixed_base);
+
 	if (mt->conf->version == MTK_THERMAL_V2) {
-		mtk_thermal_turn_on_buffer(apmixed_base);
 		mtk_thermal_release_periodic_ts(mt, auxadc_base);
 	}
 

-- 
2.39.1

Re: [PATCH v9 2/5] thermal: mediatek: control buffer enablement tweaks

[Daniel Lezcano]

On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
> From: Markus Schneider-Pargmann <msp@baylibre.com>
> 
> Add logic in order to be able to turn on the control buffer on MT8365.
> This change now allows to have control buffer support for MTK_THERMAL_V1,
> and it allows to define the register offset, and mask used to enable it.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> Signed-off-by: Fabien Parent <fparent@baylibre.com>
> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>   drivers/thermal/mtk_thermal.c | 25 ++++++++++++++++++-------
>   1 file changed, 18 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
> index 8440692e3890..d8ddceb75372 100644
> --- a/drivers/thermal/mtk_thermal.c
> +++ b/drivers/thermal/mtk_thermal.c
> @@ -271,6 +271,9 @@ struct mtk_thermal_data {
>   	bool need_switch_bank;
>   	struct thermal_bank_cfg bank_data[MAX_NUM_ZONES];
>   	enum mtk_thermal_version version;
> +	u32 apmixed_buffer_ctl_reg;
> +	u32 apmixed_buffer_ctl_mask;
> +	u32 apmixed_buffer_ctl_set;
>   };
>   
>   struct mtk_thermal {
> @@ -514,6 +517,9 @@ static const struct mtk_thermal_data mt7622_thermal_data = {
>   	.adcpnp = mt7622_adcpnp,
>   	.sensor_mux_values = mt7622_mux_values,
>   	.version = MTK_THERMAL_V2,
> +	.apmixed_buffer_ctl_reg = APMIXED_SYS_TS_CON1,
> +	.apmixed_buffer_ctl_mask = GENMASK(31, 6) | BIT(3),
> +	.apmixed_buffer_ctl_set = BIT(0),
>   };
>   
>   /*
> @@ -963,14 +969,18 @@ static const struct of_device_id mtk_thermal_of_match[] = {
>   };
>   MODULE_DEVICE_TABLE(of, mtk_thermal_of_match);
>   
> -static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base)
> +static void mtk_thermal_turn_on_buffer(struct mtk_thermal *mt,
> +				       void __iomem *apmixed_base)
>   {
> -	int tmp;
> +	u32 tmp;
> +
> +	if (!mt->conf->apmixed_buffer_ctl_reg)
> +		return;
>   
> -	tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1);
> -	tmp &= ~(0x37);
> -	tmp |= 0x1;
> -	writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1);
> +	tmp = readl(apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
> +	tmp &= mt->conf->apmixed_buffer_ctl_mask;
> +	tmp |= mt->conf->apmixed_buffer_ctl_set;
> +	writel(tmp, apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
>   	udelay(200);
>   }
>   
> @@ -1070,8 +1080,9 @@ static int mtk_thermal_probe(struct platform_device *pdev)
>   		goto err_disable_clk_auxadc;
>   	}
>   
> +	mtk_thermal_turn_on_buffer(mt, apmixed_base);
> +
>   	if (mt->conf->version == MTK_THERMAL_V2) {
> -		mtk_thermal_turn_on_buffer(apmixed_base);
>   		mtk_thermal_release_periodic_ts(mt, auxadc_base);
>   	}

This change conflicts with commit 4f2ee0aa2e706

I fixed it with:

-       if (mt->conf->version != MTK_THERMAL_V1) {
-               mtk_thermal_turn_on_buffer(apmixed_base);
+       mtk_thermal_turn_on_buffer(apmixed_base);
+
+       if (mt->conf->version != MTK_THERMAL_V1)
                 mtk_thermal_release_periodic_ts(mt, auxadc_base);
-       }

Let me know if there is something wrong.


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Re: [PATCH v9 2/5] thermal: mediatek: control buffer enablement tweaks

[Amjad Ouled-Ameur]

On 1/27/23 22:48, Daniel Lezcano wrote:
> On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
>> From: Markus Schneider-Pargmann <msp@baylibre.com>
>>
>> Add logic in order to be able to turn on the control buffer on MT8365.
>> This change now allows to have control buffer support for MTK_THERMAL_V1,
>> and it allows to define the register offset, and mask used to enable it.
>>
>> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
>> Signed-off-by: Fabien Parent <fparent@baylibre.com>
>> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
>> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
>> ---
>>   drivers/thermal/mtk_thermal.c | 25 ++++++++++++++++++-------
>>   1 file changed, 18 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
>> index 8440692e3890..d8ddceb75372 100644
>> --- a/drivers/thermal/mtk_thermal.c
>> +++ b/drivers/thermal/mtk_thermal.c
>> @@ -271,6 +271,9 @@ struct mtk_thermal_data {
>>       bool need_switch_bank;
>>       struct thermal_bank_cfg bank_data[MAX_NUM_ZONES];
>>       enum mtk_thermal_version version;
>> +    u32 apmixed_buffer_ctl_reg;
>> +    u32 apmixed_buffer_ctl_mask;
>> +    u32 apmixed_buffer_ctl_set;
>>   };
>>     struct mtk_thermal {
>> @@ -514,6 +517,9 @@ static const struct mtk_thermal_data mt7622_thermal_data = {
>>       .adcpnp = mt7622_adcpnp,
>>       .sensor_mux_values = mt7622_mux_values,
>>       .version = MTK_THERMAL_V2,
>> +    .apmixed_buffer_ctl_reg = APMIXED_SYS_TS_CON1,
>> +    .apmixed_buffer_ctl_mask = GENMASK(31, 6) | BIT(3),
>> +    .apmixed_buffer_ctl_set = BIT(0),
>>   };
>>     /*
>> @@ -963,14 +969,18 @@ static const struct of_device_id mtk_thermal_of_match[] = {
>>   };
>>   MODULE_DEVICE_TABLE(of, mtk_thermal_of_match);
>>   -static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base)
>> +static void mtk_thermal_turn_on_buffer(struct mtk_thermal *mt,
>> +                       void __iomem *apmixed_base)
>>   {
>> -    int tmp;
>> +    u32 tmp;
>> +
>> +    if (!mt->conf->apmixed_buffer_ctl_reg)
>> +        return;
>>   -    tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1);
>> -    tmp &= ~(0x37);
>> -    tmp |= 0x1;
>> -    writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1);
>> +    tmp = readl(apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
>> +    tmp &= mt->conf->apmixed_buffer_ctl_mask;
>> +    tmp |= mt->conf->apmixed_buffer_ctl_set;
>> +    writel(tmp, apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
>>       udelay(200);
>>   }
>>   @@ -1070,8 +1080,9 @@ static int mtk_thermal_probe(struct platform_device *pdev)
>>           goto err_disable_clk_auxadc;
>>       }
>>   +    mtk_thermal_turn_on_buffer(mt, apmixed_base);
>> +
>>       if (mt->conf->version == MTK_THERMAL_V2) {
>> -        mtk_thermal_turn_on_buffer(apmixed_base);
>>           mtk_thermal_release_periodic_ts(mt, auxadc_base);
>>       }
>
> This change conflicts with commit 4f2ee0aa2e706
>
> I fixed it with:
>
> -       if (mt->conf->version != MTK_THERMAL_V1) {
> -               mtk_thermal_turn_on_buffer(apmixed_base);
> +       mtk_thermal_turn_on_buffer(apmixed_base);
> +
> +       if (mt->conf->version != MTK_THERMAL_V1)
>                 mtk_thermal_release_periodic_ts(mt, auxadc_base);
> -       }
>
I think it's rather MTK_THERMAL_V2 and not MTK_THERMAL_V1. Other than that, it looks

fine by me, thanks.


Amjad

> Let me know if there is something wrong.
>
>

Re: [PATCH v9 2/5] thermal: mediatek: control buffer enablement tweaks

[Daniel Lezcano]

On 27/01/2023 23:21, Amjad Ouled-Ameur wrote:
> 
> On 1/27/23 22:48, Daniel Lezcano wrote:
>> On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
>>> From: Markus Schneider-Pargmann <msp@baylibre.com>
>>>
>>> Add logic in order to be able to turn on the control buffer on MT8365.
>>> This change now allows to have control buffer support for 
>>> MTK_THERMAL_V1,
>>> and it allows to define the register offset, and mask used to enable it.
>>>
>>> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
>>> Signed-off-by: Fabien Parent <fparent@baylibre.com>
>>> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
>>> Reviewed-by: AngeloGioacchino Del Regno 
>>> <angelogioacchino.delregno@collabora.com>
>>> ---
>>>   drivers/thermal/mtk_thermal.c | 25 ++++++++++++++++++-------
>>>   1 file changed, 18 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/drivers/thermal/mtk_thermal.c 
>>> b/drivers/thermal/mtk_thermal.c
>>> index 8440692e3890..d8ddceb75372 100644
>>> --- a/drivers/thermal/mtk_thermal.c
>>> +++ b/drivers/thermal/mtk_thermal.c
>>> @@ -271,6 +271,9 @@ struct mtk_thermal_data {
>>>       bool need_switch_bank;
>>>       struct thermal_bank_cfg bank_data[MAX_NUM_ZONES];
>>>       enum mtk_thermal_version version;
>>> +    u32 apmixed_buffer_ctl_reg;
>>> +    u32 apmixed_buffer_ctl_mask;
>>> +    u32 apmixed_buffer_ctl_set;
>>>   };
>>>     struct mtk_thermal {
>>> @@ -514,6 +517,9 @@ static const struct mtk_thermal_data 
>>> mt7622_thermal_data = {
>>>       .adcpnp = mt7622_adcpnp,
>>>       .sensor_mux_values = mt7622_mux_values,
>>>       .version = MTK_THERMAL_V2,
>>> +    .apmixed_buffer_ctl_reg = APMIXED_SYS_TS_CON1,
>>> +    .apmixed_buffer_ctl_mask = GENMASK(31, 6) | BIT(3),
>>> +    .apmixed_buffer_ctl_set = BIT(0),
>>>   };
>>>     /*
>>> @@ -963,14 +969,18 @@ static const struct of_device_id 
>>> mtk_thermal_of_match[] = {
>>>   };
>>>   MODULE_DEVICE_TABLE(of, mtk_thermal_of_match);
>>>   -static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base)
>>> +static void mtk_thermal_turn_on_buffer(struct mtk_thermal *mt,
>>> +                       void __iomem *apmixed_base)
>>>   {
>>> -    int tmp;
>>> +    u32 tmp;
>>> +
>>> +    if (!mt->conf->apmixed_buffer_ctl_reg)
>>> +        return;
>>>   -    tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1);
>>> -    tmp &= ~(0x37);
>>> -    tmp |= 0x1;
>>> -    writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1);
>>> +    tmp = readl(apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
>>> +    tmp &= mt->conf->apmixed_buffer_ctl_mask;
>>> +    tmp |= mt->conf->apmixed_buffer_ctl_set;
>>> +    writel(tmp, apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
>>>       udelay(200);
>>>   }
>>>   @@ -1070,8 +1080,9 @@ static int mtk_thermal_probe(struct 
>>> platform_device *pdev)
>>>           goto err_disable_clk_auxadc;
>>>       }
>>>   +    mtk_thermal_turn_on_buffer(mt, apmixed_base);
>>> +
>>>       if (mt->conf->version == MTK_THERMAL_V2) {
>>> -        mtk_thermal_turn_on_buffer(apmixed_base);
>>>           mtk_thermal_release_periodic_ts(mt, auxadc_base);
>>>       }
>>
>> This change conflicts with commit 4f2ee0aa2e706
>>
>> I fixed it with:
>>
>> -       if (mt->conf->version != MTK_THERMAL_V1) {
>> -               mtk_thermal_turn_on_buffer(apmixed_base);
>> +       mtk_thermal_turn_on_buffer(apmixed_base);
>> +
>> +       if (mt->conf->version != MTK_THERMAL_V1)
>>                 mtk_thermal_release_periodic_ts(mt, auxadc_base);
>> -       }
>>
> I think it's rather MTK_THERMAL_V2 and not MTK_THERMAL_V1. Other than 
> that, it looks

It was before if (version == MTK_THERMAL_V2). Now there is a V3, so it 
is replaced by if (version != MTK_THERMAL_V1) in order to include the V3


>> Let me know if there is something wrong.
>>
>>

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Re: [PATCH v9 2/5] thermal: mediatek: control buffer enablement tweaks

[Amjad Ouled-Ameur]

Hi Daniel,

On 1/27/23 22:48, Daniel Lezcano wrote:
> On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
>> From: Markus Schneider-Pargmann <msp@baylibre.com>
>>
>> Add logic in order to be able to turn on the control buffer on MT8365.
>> This change now allows to have control buffer support for MTK_THERMAL_V1,
>> and it allows to define the register offset, and mask used to enable it.
>>
>> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
>> Signed-off-by: Fabien Parent <fparent@baylibre.com>
>> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
>> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
>> ---
>>   drivers/thermal/mtk_thermal.c | 25 ++++++++++++++++++-------
>>   1 file changed, 18 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
>> index 8440692e3890..d8ddceb75372 100644
>> --- a/drivers/thermal/mtk_thermal.c
>> +++ b/drivers/thermal/mtk_thermal.c
>> @@ -271,6 +271,9 @@ struct mtk_thermal_data {
>>       bool need_switch_bank;
>>       struct thermal_bank_cfg bank_data[MAX_NUM_ZONES];
>>       enum mtk_thermal_version version;
>> +    u32 apmixed_buffer_ctl_reg;
>> +    u32 apmixed_buffer_ctl_mask;
>> +    u32 apmixed_buffer_ctl_set;
>>   };
>>     struct mtk_thermal {
>> @@ -514,6 +517,9 @@ static const struct mtk_thermal_data mt7622_thermal_data = {
>>       .adcpnp = mt7622_adcpnp,
>>       .sensor_mux_values = mt7622_mux_values,
>>       .version = MTK_THERMAL_V2,
>> +    .apmixed_buffer_ctl_reg = APMIXED_SYS_TS_CON1,
>> +    .apmixed_buffer_ctl_mask = GENMASK(31, 6) | BIT(3),
>> +    .apmixed_buffer_ctl_set = BIT(0),
>>   };
>>     /*
>> @@ -963,14 +969,18 @@ static const struct of_device_id mtk_thermal_of_match[] = {
>>   };
>>   MODULE_DEVICE_TABLE(of, mtk_thermal_of_match);
>>   -static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base)
>> +static void mtk_thermal_turn_on_buffer(struct mtk_thermal *mt,
>> +                       void __iomem *apmixed_base)
>>   {
>> -    int tmp;
>> +    u32 tmp;
>> +
>> +    if (!mt->conf->apmixed_buffer_ctl_reg)
>> +        return;
>>   -    tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1);
>> -    tmp &= ~(0x37);
>> -    tmp |= 0x1;
>> -    writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1);
>> +    tmp = readl(apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
>> +    tmp &= mt->conf->apmixed_buffer_ctl_mask;
>> +    tmp |= mt->conf->apmixed_buffer_ctl_set;
>> +    writel(tmp, apmixed_base + mt->conf->apmixed_buffer_ctl_reg);
>>       udelay(200);
>>   }
>>   @@ -1070,8 +1080,9 @@ static int mtk_thermal_probe(struct platform_device *pdev)
>>           goto err_disable_clk_auxadc;
>>       }
>>   +    mtk_thermal_turn_on_buffer(mt, apmixed_base);
>> +
>>       if (mt->conf->version == MTK_THERMAL_V2) {
>> -        mtk_thermal_turn_on_buffer(apmixed_base);
>>           mtk_thermal_release_periodic_ts(mt, auxadc_base);
>>       }
>
> This change conflicts with commit 4f2ee0aa2e706
>
> I fixed it with:
>
> -       if (mt->conf->version != MTK_THERMAL_V1) {
> -               mtk_thermal_turn_on_buffer(apmixed_base);
> +       mtk_thermal_turn_on_buffer(apmixed_base);

This should rather be "mtk_thermal_turn_on_buffer(mt, apmixed_base);" as this patch

also adds mtk_thermal arg to the function.


Regards,

Amjad

> +
> +       if (mt->conf->version != MTK_THERMAL_V1)
>                 mtk_thermal_release_periodic_ts(mt, auxadc_base);
> -       }
>
> Let me know if there is something wrong.
>
>

[PATCH v9 3/5] thermal: mediatek: add support for MT8365 SoC

[Amjad Ouled-Ameur]

From: Fabien Parent <fparent@baylibre.com>

MT8365 is similar to the other SoCs supported by the driver. It has only
one bank and 3 actual sensors that can be multiplexed. There is another
one sensor that does not have usable data.

Signed-off-by: Fabien Parent <fparent@baylibre.com>
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/thermal/mtk_thermal.c | 68 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index d8ddceb75372..3a5df1440822 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -31,6 +31,7 @@
 #define AUXADC_CON2_V		0x010
 #define AUXADC_DATA(channel)	(0x14 + (channel) * 4)
 
+#define APMIXED_SYS_TS_CON0	0x600
 #define APMIXED_SYS_TS_CON1	0x604
 
 /* Thermal Controller Registers */
@@ -245,6 +246,17 @@ enum mtk_thermal_version {
 /* The calibration coefficient of sensor  */
 #define MT8183_CALIBRATION	153
 
+/* MT8365 */
+#define MT8365_TEMP_AUXADC_CHANNEL 11
+#define MT8365_CALIBRATION 164
+#define MT8365_NUM_CONTROLLER 1
+#define MT8365_NUM_BANKS 1
+#define MT8365_NUM_SENSORS 3
+#define MT8365_NUM_SENSORS_PER_ZONE 3
+#define MT8365_TS1 0
+#define MT8365_TS2 1
+#define MT8365_TS3 2
+
 struct mtk_thermal;
 
 struct thermal_bank_cfg {
@@ -389,6 +401,24 @@ 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, };
 
+/* MT8365 thermal sensor data */
+static const int mt8365_bank_data[MT8365_NUM_SENSORS] = {
+	MT8365_TS1, MT8365_TS2, MT8365_TS3
+};
+
+static const int mt8365_msr[MT8365_NUM_SENSORS_PER_ZONE] = {
+	TEMP_MSR0, TEMP_MSR1, TEMP_MSR2
+};
+
+static const int mt8365_adcpnp[MT8365_NUM_SENSORS_PER_ZONE] = {
+	TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2
+};
+
+static const int mt8365_mux_values[MT8365_NUM_SENSORS] = { 0, 1, 2 };
+static const int mt8365_tc_offset[MT8365_NUM_CONTROLLER] = { 0 };
+
+static const int mt8365_vts_index[MT8365_NUM_SENSORS] = { VTS1, VTS2, VTS3 };
+
 /*
  * The MT8173 thermal controller has four banks. Each bank can read up to
  * four temperature sensors simultaneously. The MT8173 has a total of 5
@@ -463,6 +493,40 @@ static const struct mtk_thermal_data mt2701_thermal_data = {
 	.version = MTK_THERMAL_V1,
 };
 
+/*
+ * The MT8365 thermal controller has one bank, which can read up to
+ * four temperature sensors simultaneously. The MT8365 has a total of 3
+ * temperature sensors.
+ *
+ * The thermal core only gets the maximum temperature of this one bank,
+ * so the bank concept wouldn't be necessary here. However, the SVS (Smart
+ * Voltage Scaling) unit makes its decisions based on the same bank
+ * data.
+ */
+static const struct mtk_thermal_data mt8365_thermal_data = {
+	.auxadc_channel = MT8365_TEMP_AUXADC_CHANNEL,
+	.num_banks = MT8365_NUM_BANKS,
+	.num_sensors = MT8365_NUM_SENSORS,
+	.vts_index = mt8365_vts_index,
+	.cali_val = MT8365_CALIBRATION,
+	.num_controller = MT8365_NUM_CONTROLLER,
+	.controller_offset = mt8365_tc_offset,
+	.need_switch_bank = false,
+	.bank_data = {
+		{
+			.num_sensors = MT8365_NUM_SENSORS,
+			.sensors = mt8365_bank_data
+		},
+	},
+	.msr = mt8365_msr,
+	.adcpnp = mt8365_adcpnp,
+	.sensor_mux_values = mt8365_mux_values,
+	.version = MTK_THERMAL_V1,
+	.apmixed_buffer_ctl_reg = APMIXED_SYS_TS_CON0,
+	.apmixed_buffer_ctl_mask = (u32) ~GENMASK(29, 28),
+	.apmixed_buffer_ctl_set = 0,
+};
+
 /*
  * The MT2712 thermal controller has one bank, which can read up to
  * four temperature sensors simultaneously. The MT2712 has a total of 4
@@ -964,6 +1028,10 @@ static const struct of_device_id mtk_thermal_of_match[] = {
 	{
 		.compatible = "mediatek,mt8183-thermal",
 		.data = (void *)&mt8183_thermal_data,
+	},
+	{
+		.compatible = "mediatek,mt8365-thermal",
+		.data = (void *)&mt8365_thermal_data,
 	}, {
 	},
 };

-- 
2.39.1

[PATCH v9 4/5] thermal: mediatek: add callback for raw to mcelsius conversion

[Amjad Ouled-Ameur]

Set a callback at probe time instead of checking the version at
each get_sensor_temp().

Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/thermal/mtk_thermal.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 3a5df1440822..b8e06f6c7c42 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -307,6 +307,8 @@ struct mtk_thermal {
 
 	const struct mtk_thermal_data *conf;
 	struct mtk_thermal_bank banks[MAX_NUM_ZONES];
+
+	int (*raw_to_mcelsius)(struct mtk_thermal *mt, int sensno, s32 raw);
 };
 
 /* MT8183 thermal sensor data */
@@ -726,13 +728,7 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank)
 	for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) {
 		raw = readl(mt->thermal_base + conf->msr[i]);
 
-		if (mt->conf->version == MTK_THERMAL_V1) {
-			temp = raw_to_mcelsius_v1(
-				mt, conf->bank_data[bank->id].sensors[i], raw);
-		} else {
-			temp = raw_to_mcelsius_v2(
-				mt, conf->bank_data[bank->id].sensors[i], raw);
-		}
+		temp = mt->raw_to_mcelsius(mt, i, raw);
 
 		/*
 		 * The first read of a sensor often contains very high bogus
@@ -1150,6 +1146,9 @@ static int mtk_thermal_probe(struct platform_device *pdev)
 
 	mtk_thermal_turn_on_buffer(mt, apmixed_base);
 
+	mt->raw_to_mcelsius = (mt->conf->version == MTK_THERMAL_V1) ?
+				raw_to_mcelsius_v1 : raw_to_mcelsius_v2;
+
 	if (mt->conf->version == MTK_THERMAL_V2) {
 		mtk_thermal_release_periodic_ts(mt, auxadc_base);
 	}

-- 
2.39.1

Re: [PATCH v9 4/5] thermal: mediatek: add callback for raw to mcelsius conversion

[Daniel Lezcano]

On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
> Set a callback at probe time instead of checking the version at
> each get_sensor_temp().
> 
> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---

This patch has been dropped because it is duplicate of patch:

https://lore.kernel.org/r/69c17529e8418da3eec703dde31e1b01e5b0f7e8.1674055882.git.daniel@makrotopia.org



>   drivers/thermal/mtk_thermal.c | 13 ++++++-------
>   1 file changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
> index 3a5df1440822..b8e06f6c7c42 100644
> --- a/drivers/thermal/mtk_thermal.c
> +++ b/drivers/thermal/mtk_thermal.c
> @@ -307,6 +307,8 @@ struct mtk_thermal {
>   
>   	const struct mtk_thermal_data *conf;
>   	struct mtk_thermal_bank banks[MAX_NUM_ZONES];
> +
> +	int (*raw_to_mcelsius)(struct mtk_thermal *mt, int sensno, s32 raw);
>   };
>   
>   /* MT8183 thermal sensor data */
> @@ -726,13 +728,7 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank)
>   	for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) {
>   		raw = readl(mt->thermal_base + conf->msr[i]);
>   
> -		if (mt->conf->version == MTK_THERMAL_V1) {
> -			temp = raw_to_mcelsius_v1(
> -				mt, conf->bank_data[bank->id].sensors[i], raw);
> -		} else {
> -			temp = raw_to_mcelsius_v2(
> -				mt, conf->bank_data[bank->id].sensors[i], raw);
> -		}
> +		temp = mt->raw_to_mcelsius(mt, i, raw);
>   
>   		/*
>   		 * The first read of a sensor often contains very high bogus
> @@ -1150,6 +1146,9 @@ static int mtk_thermal_probe(struct platform_device *pdev)
>   
>   	mtk_thermal_turn_on_buffer(mt, apmixed_base);
>   
> +	mt->raw_to_mcelsius = (mt->conf->version == MTK_THERMAL_V1) ?
> +				raw_to_mcelsius_v1 : raw_to_mcelsius_v2;
> +
>   	if (mt->conf->version == MTK_THERMAL_V2) {
>   		mtk_thermal_release_periodic_ts(mt, auxadc_base);
>   	}
> 

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[PATCH v9 5/5] thermal: mediatek: add delay after thermal banks initialization

[Amjad Ouled-Ameur]

Thermal sensor reads performed immediately after thermal bank
initialization returns bogus values. This is currently tackled by returning
0 if the temperature is bogus (exceeding 200000).

Instead, add a delay between the bank init and the thermal zone device
register to properly fix this.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/thermal/mtk_thermal.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index b8e06f6c7c42..ab7db385afb3 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -730,14 +730,6 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank)
 
 		temp = mt->raw_to_mcelsius(mt, i, raw);
 
-		/*
-		 * The first read of a sensor often contains very high bogus
-		 * temperature value. Filter these out so that the system does
-		 * not immediately shut down.
-		 */
-		if (temp > 200000)
-			temp = 0;
-
 		if (temp > max)
 			max = temp;
 	}
@@ -1160,6 +1152,9 @@ static int mtk_thermal_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, mt);
 
+	// Delay for thermal banks to be ready
+	msleep(30);
+
 	tzdev = devm_thermal_of_zone_register(&pdev->dev, 0, mt,
 					      &mtk_thermal_ops);
 	if (IS_ERR(tzdev)) {

-- 
2.39.1

Re: [PATCH v9 5/5] thermal: mediatek: add delay after thermal banks initialization

[Daniel Lezcano]

On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
> Thermal sensor reads performed immediately after thermal bank
> initialization returns bogus values. This is currently tackled by returning
> 0 if the temperature is bogus (exceeding 200000).
> 
> Instead, add a delay between the bank init and the thermal zone device
> register to properly fix this.
> 
> Signed-off-by: Michael Kao <michael.kao@mediatek.com>
> Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>   drivers/thermal/mtk_thermal.c | 11 +++--------
>   1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
> index b8e06f6c7c42..ab7db385afb3 100644
> --- a/drivers/thermal/mtk_thermal.c
> +++ b/drivers/thermal/mtk_thermal.c
> @@ -730,14 +730,6 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank)
>   
>   		temp = mt->raw_to_mcelsius(mt, i, raw);
>   
> -		/*
> -		 * The first read of a sensor often contains very high bogus
> -		 * temperature value. Filter these out so that the system does
> -		 * not immediately shut down.
> -		 */
> -		if (temp > 200000)
> -			temp = 0;
> -
>   		if (temp > max)
>   			max = temp;
>   	}
> @@ -1160,6 +1152,9 @@ static int mtk_thermal_probe(struct platform_device *pdev)
>   
>   	platform_set_drvdata(pdev, mt);
>   
> +	// Delay for thermal banks to be ready

Coding style for comments is : /* */

No need to resend, I'll take care of changing the comment format.

> +	msleep(30);
> +
>   	tzdev = devm_thermal_of_zone_register(&pdev->dev, 0, mt,
>   					      &mtk_thermal_ops);
>   	if (IS_ERR(tzdev)) {
> 

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Re: [PATCH v9 0/5] thermal: mediatek: Add support for MT8365 SoC

[Daniel Lezcano]

On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
> This patchset adds thermal support for MT8365 SoC.
> 
> MT8365 has 4 thermal sensors, one for CPUs and the rest for debug/dev
> purposes. The CPU thermal zone uses passive cooling device with
> CPU{0..3}.
> 
> Changes in v9:
> - Use delay between bank init and the thermal zone device register.
> - Link to v8: https://lore.kernel.org/r/20221018-up-i350-thermal-bringup-v8-0-23e8fbb08837@baylibre.com
> 
> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
> ---
> Amjad Ouled-Ameur (2):
>        thermal: mediatek: add callback for raw to mcelsius conversion
>        thermal: mediatek: add delay after thermal banks initialization
> 
> Fabien Parent (2):
>        dt-bindings: thermal: mediatek: add binding documentation for MT8365 SoC
>        thermal: mediatek: add support for MT8365 SoC
> 
> Markus Schneider-Pargmann (1):
>        thermal: mediatek: control buffer enablement tweaks
> 
>   .../bindings/thermal/mediatek-thermal.txt          |   1 +
>   drivers/thermal/mtk_thermal.c                      | 117 +++++++++++++++++----
>   2 files changed, 96 insertions(+), 22 deletions(-)
> ---

Applied, with some changes and the subject fixed:

Subject format for thermal is: thermal/drivers/<thedriver>: [A-Z]*.

Thanks

   -- Daniel

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Re: [PATCH v9 0/5] thermal: mediatek: Add support for MT8365 SoC

[Amjad Ouled-Ameur]

On 1/27/23 22:59, Daniel Lezcano wrote:
> On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
>> This patchset adds thermal support for MT8365 SoC.
>>
>> MT8365 has 4 thermal sensors, one for CPUs and the rest for debug/dev
>> purposes. The CPU thermal zone uses passive cooling device with
>> CPU{0..3}.
>>
>> Changes in v9:
>> - Use delay between bank init and the thermal zone device register.
>> - Link to v8: https://lore.kernel.org/r/20221018-up-i350-thermal-bringup-v8-0-23e8fbb08837@baylibre.com
>>
>> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
>> ---
>> Amjad Ouled-Ameur (2):
>>        thermal: mediatek: add callback for raw to mcelsius conversion
>>        thermal: mediatek: add delay after thermal banks initialization
>>
>> Fabien Parent (2):
>>        dt-bindings: thermal: mediatek: add binding documentation for MT8365 SoC
>>        thermal: mediatek: add support for MT8365 SoC
>>
>> Markus Schneider-Pargmann (1):
>>        thermal: mediatek: control buffer enablement tweaks
>>
>>   .../bindings/thermal/mediatek-thermal.txt          |   1 +
>>   drivers/thermal/mtk_thermal.c                      | 117 +++++++++++++++++----
>>   2 files changed, 96 insertions(+), 22 deletions(-)
>> ---
>
> Applied, with some changes and the subject fixed:
>
> Subject format for thermal is: thermal/drivers/<thedriver>: [A-Z]*.
>
> Thanks

Thank you Daniel for applying the patchset.

Kindly,

Amjad

>
>   -- Daniel
>

Re: [PATCH v9 0/5] thermal: mediatek: Add support for MT8365 SoC

[Amjad Ouled-Ameur]

Hi Daniel,

On 1/27/23 22:59, Daniel Lezcano wrote:
> On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
>> This patchset adds thermal support for MT8365 SoC.
>>
>> MT8365 has 4 thermal sensors, one for CPUs and the rest for debug/dev
>> purposes. The CPU thermal zone uses passive cooling device with
>> CPU{0..3}.
>>
>> Changes in v9:
>> - Use delay between bank init and the thermal zone device register.
>> - Link to v8: https://lore.kernel.org/r/20221018-up-i350-thermal-bringup-v8-0-23e8fbb08837@baylibre.com
>>
>> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
>> ---
>> Amjad Ouled-Ameur (2):
>>        thermal: mediatek: add callback for raw to mcelsius conversion
>>        thermal: mediatek: add delay after thermal banks initialization
>>
>> Fabien Parent (2):
>>        dt-bindings: thermal: mediatek: add binding documentation for MT8365 SoC
>>        thermal: mediatek: add support for MT8365 SoC
>>
>> Markus Schneider-Pargmann (1):
>>        thermal: mediatek: control buffer enablement tweaks
>>
>>   .../bindings/thermal/mediatek-thermal.txt          |   1 +
>>   drivers/thermal/mtk_thermal.c                      | 117 +++++++++++++++++----
>>   2 files changed, 96 insertions(+), 22 deletions(-)
>> ---
>
> Applied, with some changes and the subject fixed:
>
Any news about this patchset ?

Kindly,

Amjad

> Subject format for thermal is: thermal/drivers/<thedriver>: [A-Z]*.
>
> Thanks
>
>   -- Daniel
>

Re: [PATCH v9 0/5] thermal: mediatek: Add support for MT8365 SoC

[Daniel Lezcano]

On 06/03/2023 11:13, Amjad Ouled-Ameur wrote:
> Hi Daniel,
> 
> On 1/27/23 22:59, Daniel Lezcano wrote:
>> On 27/01/2023 16:44, Amjad Ouled-Ameur wrote:
>>> This patchset adds thermal support for MT8365 SoC.
>>>
>>> MT8365 has 4 thermal sensors, one for CPUs and the rest for debug/dev
>>> purposes. The CPU thermal zone uses passive cooling device with
>>> CPU{0..3}.
>>>
>>> Changes in v9:
>>> - Use delay between bank init and the thermal zone device register.
>>> - Link to v8: 
>>> https://lore.kernel.org/r/20221018-up-i350-thermal-bringup-v8-0-23e8fbb08837@baylibre.com
>>>
>>> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
>>> ---
>>> Amjad Ouled-Ameur (2):
>>>        thermal: mediatek: add callback for raw to mcelsius conversion
>>>        thermal: mediatek: add delay after thermal banks initialization
>>>
>>> Fabien Parent (2):
>>>        dt-bindings: thermal: mediatek: add binding documentation for 
>>> MT8365 SoC
>>>        thermal: mediatek: add support for MT8365 SoC
>>>
>>> Markus Schneider-Pargmann (1):
>>>        thermal: mediatek: control buffer enablement tweaks
>>>
>>>   .../bindings/thermal/mediatek-thermal.txt          |   1 +
>>>   drivers/thermal/mtk_thermal.c                      | 117 
>>> +++++++++++++++++----
>>>   2 files changed, 96 insertions(+), 22 deletions(-)
>>> ---
>>
>> Applied, with some changes and the subject fixed:
>>
> Any news about this patchset ?

Yep, sorry for that. It will be in bleeding-edge soon.

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