linux-kernel - Re: [PATCH V5 4/6] regulator: Add a regulator driver for the PM8008 PMIC

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Message-ID: <YgW0ltMKjGZH4NrZ@builder.lan>
Date:   Thu, 10 Feb 2022 18:57:58 -0600
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Satya Priya <quic_c_skakit@...cinc.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Das Srinagesh <gurus@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, swboyd@...omium.org,
        quic_collinsd@...cinc.com, quic_subbaram@...cinc.com,
        quic_jprakash@...cinc.com
Subject: Re: [PATCH V5 4/6] regulator: Add a regulator driver for the PM8008
 PMIC

On Tue 08 Feb 08:52 CST 2022, Satya Priya wrote:
> diff --git a/drivers/regulator/qcom-pm8008-regulator.c b/drivers/regulator/qcom-pm8008-regulator.c
[..]
> +static int pm8008_regulator_probe(struct platform_device *pdev)
> +{
> +	struct device *dev = &pdev->dev;
> +	int id = pdev->id % PM8008_NUM_LDOS;

Why does this driver look completely different from all the other
Qualcomm regulator drivers that we already have, and why do you register
one platform_device per regulator?

The fundamental difference in design makes it hard to maintain and
you're wasting quite a bit of memory with the unnecessary
platfrom_device objects.

Regards,
Bjorn