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Message-ID: <7acba6fc-e1f7-8711-cf4a-2c24b2ccaf36@collabora.com>
Date:   Wed, 31 May 2023 10:07:49 +0200
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Subject: Re: [PATCH v4 3/5] thermal/drivers/mediatek/lvts_thermal: Add mt8192
 support
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To:     =?UTF-8?Q?Bernhard_Rosenkr=c3=a4nzer?= <bero@baylibre.com>,
        daniel.lezcano@linaro.org, rafael@kernel.org, amitk@kernel.org,
        rui.zhang@intel.com, matthias.bgg@gmail.com, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, rdunlap@infradead.org,
        ye.xingchen@zte.com.cn, p.zabel@pengutronix.de
Cc:     linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org,
        wenst@chromium.org, james.lo@mediatek.com,
        rex-bc.chen@mediatek.com, nfraprado@collabora.com,
        abailon@baylibre.com, amergnat@baylibre.com, khilman@baylibre.com
References: <20230530195132.2286163-1-bero@baylibre.com>
 <20230530195132.2286163-4-bero@baylibre.com>
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>
In-Reply-To: <20230530195132.2286163-4-bero@baylibre.com>
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Precedence: bulk

Il 30/05/23 21:51, Bernhard Rosenkränzer ha scritto:
> From: Balsam CHIHI <bchihi@baylibre.com>
> 
> Add LVTS Driver support for MT8192.
> 
> Co-developed-by : Nícolas F. R. A. Prado <nfraprado@collabora.com>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
> Signed-off-by: Balsam CHIHI <bchihi@baylibre.com>
> Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
> Signed-off-by: Bernhard Rosenkränzer <bero@baylibre.com>
> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
> ---
>   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?!

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);