linux-kernel - Re: [PATCH] thermal/drivers/mediatek/lvts

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Date: Wed, 10 Apr 2024 12:07:29 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Hsin-Te Yuan <yuanhsinte@...omium.org>,
 "Rafael J. Wysocki" <rafael@...nel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>, Zhang Rui <rui.zhang@...el.com>,
 Lukasz Luba <lukasz.luba@....com>, Matthias Brugger
 <matthias.bgg@...il.com>, Nícolas F. R. A. Prado
 <nfraprado@...labora.com>, Bernhard Rosenkränzer
 <bero@...libre.com>, Balsam CHIHI <bchihi@...libre.com>
Cc: Alexandre Mergnat <amergnat@...libre.com>, linux-pm@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] thermal/drivers/mediatek/lvts_thermal: Add coeff for
 mt8192

Il 10/04/24 12:06, Hsin-Te Yuan ha scritto:
> In order for lvts_raw_to_temp to function properly on mt8192,
> temperature coefficients for mt8192 need to be added.
> 
> Fixes: 288732242db4 ("thermal/drivers/mediatek/lvts_thermal: Add mt8192 support")
> Signed-off-by: Hsin-Te Yuan <yuanhsinte@...omium.org>
> ---
>   drivers/thermal/mediatek/lvts_thermal.c | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
> index fd4bd650c77a6..6d226c3e135ca 100644
> --- a/drivers/thermal/mediatek/lvts_thermal.c
> +++ b/drivers/thermal/mediatek/lvts_thermal.c
> @@ -80,6 +80,8 @@
>   #define LVTS_SENSOR_MAX				4
>   #define LVTS_GOLDEN_TEMP_MAX		62
>   #define LVTS_GOLDEN_TEMP_DEFAULT	50
> +#define LVTS_COEFF_A_MT8192			-250460
> +#define LVTS_COEFF_B_MT8192			250460

This is the same as LVTS_COEFF_{A,B}_MT8195, please just assign that to both
7988 and 8192's lvts_ap_data.

No need to create duplicate definitions.

Cheers,
Angelo

>   #define LVTS_COEFF_A_MT8195			-250460
>   #define LVTS_COEFF_B_MT8195			250460
>   #define LVTS_COEFF_A_MT7988			-204650
> @@ -1530,11 +1532,15 @@ static const struct lvts_data mt7988_lvts_ap_data = {
>   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),
> +	.temp_factor	= LVTS_COEFF_A_MT8192,
> +	.temp_offset	= LVTS_COEFF_B_MT8192,
>   };
>   
>   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),
> +	.temp_factor	= LVTS_COEFF_A_MT8192,
> +	.temp_offset	= LVTS_COEFF_B_MT8192,
>   };
>   
>   static const struct lvts_data mt8195_lvts_mcu_data = {
> 
> ---
> base-commit: 20cb38a7af88dc40095da7c2c9094da3873fea23
> change-id: 20240410-lvts_thermal-3d365847acff
> 
> Best regards,