linux-kernel - Re: [PATCH v9 07/10] power: supply: mt6370: Add MediaTek MT6370 charger driver

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Date:   Tue, 30 Aug 2022 13:34:28 +0300
From:   Matti Vaittinen <mazziesaccount@...il.com>
To:     ChiaEn Wu <peterwu.pub@...il.com>, lee@...nel.org,
        daniel.thompson@...aro.org, jingoohan1@...il.com, pavel@....cz,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        matthias.bgg@...il.com, sre@...nel.org, jic23@...nel.org,
        lars@...afoo.de, deller@....de, broonie@...nel.org,
        andriy.shevchenko@...ux.intel.com
Cc:     chiaen_wu@...htek.com, alice_chen@...htek.com,
        cy_huang@...htek.com, dri-devel@...ts.freedesktop.org,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-fbdev@...r.kernel.org, szunichen@...il.com,
        andy.shevchenko@...il.com
Subject: Re: [PATCH v9 07/10] power: supply: mt6370: Add MediaTek MT6370
 charger driver

On 8/30/22 06:40, ChiaEn Wu wrote:
> From: ChiaEn Wu <chiaen_wu@...htek.com>
> 
> MediaTek MT6370 is a SubPMIC consisting of a single cell battery charger
> with ADC monitoring, RGB LEDs, dual channel flashlight, WLED backlight
> driver, display bias voltage supply, one general purpose LDO, and the
> USB Type-C & PD controller complies with the latest USB Type-C and PD
> standards.
> 
> Add support for the MediaTek MT6370 Charger driver. The charger module
> of MT6370 supports High-Accuracy Voltage/Current Regulation,
> Average Input Current Regulation, Battery Temperature Sensing,
> Over-Temperature Protection, DPDM Detection for BC1.2.
> 
> Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>
> Signed-off-by: ChiaEn Wu <chiaen_wu@...htek.com>
> ---
> 
> +
> +static const struct linear_range mt6370_chg_ranges[MT6370_RANGE_F_MAX] = {
> +	LINEAR_RANGE_IDX(MT6370_RANGE_F_IAICR, 100000, 0x0, 0x3F, 50000),
> +	LINEAR_RANGE_IDX(MT6370_RANGE_F_VOREG, 3900000, 0x0, 0x51, 10000),
> +	LINEAR_RANGE_IDX(MT6370_RANGE_F_VMIVR, 3900000, 0x0, 0x5F, 100000),
> +	LINEAR_RANGE_IDX(MT6370_RANGE_F_ICHG, 900000, 0x08, 0x31, 100000),
> +	LINEAR_RANGE_IDX(MT6370_RANGE_F_IPREC, 100000, 0x0, 0x0F, 50000),
> +	LINEAR_RANGE_IDX(MT6370_RANGE_F_IEOC, 100000, 0x0, 0x0F, 50000),
> +};

This looks good to me now :) Thanks for the linear-range improvement!

> +	INIT_DELAYED_WORK(&priv->mivr_dwork, mt6370_chg_mivr_dwork_func);
> +	ret = devm_add_action_or_reset(dev, mt6370_chg_cancel_mivr_dwork,
> +				       &priv->mivr_dwork);
> +	if (ret)
> +		return dev_err_probe(dev, ret, "Failed to init mivr dwork\n");

I just noticed this. Maybe this could be done using 
devm_delayed_work_autocancel() ?

Yours
-- Matti

-- 
Matti Vaittinen
Linux kernel developer at ROHM Semiconductors
Oulu Finland

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