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From: Mark Brown <broonie@kernel.org>
To: "Andrew F. Davis" <afd@ti.com>
Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Ian Campbell <ijc+devicetree@hellion.org.uk>,
	Kumar Gala <galak@codeaurora.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Alexandre Courbot <gnurou@gmail.com>,
	Samuel Ortiz <sameo@linux.intel.com>,
	Lee Jones <lee.jones@linaro.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	devicetree@vger.kernel.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 5/6] regulator: tps65086: Add regulator driver for the TPS65086 PMIC
Date: Tue, 3 Nov 2015 16:31:17 +0000	[thread overview]
Message-ID: <20151103163117.GQ20228@sirena.org.uk> (raw)
In-Reply-To: <5638D97A.8040306@ti.com>

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On Tue, Nov 03, 2015 at 09:57:46AM -0600, Andrew F. Davis wrote:
> On 10/31/2015 09:37 PM, Mark Brown wrote:
> >On Fri, Oct 30, 2015 at 05:41:43PM -0500, Andrew F. Davis wrote:

> >>+	struct regulator_desc desc;
> >>+	unsigned int decay_reg;
> >>+	unsigned int decay_mask;

> >The decay_reg and decay_mask fields appear to be entirely write only,
> >why are they present?

> Not sure what you mean, they are written to differently for each regulator,
> and read when setting the decay mode in _probe.

Ugh, that's a bit hidden (mostly due to not using the callback).

> >>+	ret = of_regulator_match(&pdev->dev, pdev->dev.of_node,
> >>+				 tps65086_matches,
> >>+				 ARRAY_SIZE(tps65086_matches));
> >>+	if (ret < 0) {
> >>+		dev_err(tps->dev, "Error parsing regulator init data\n");
> >>+		return ret;
> >>+	}

> >Please match regulators using the fields in the regulator_desc rather
> >than open coding.

> I need to match to get the driver specific information for each regulator,
> if I let regulator_register do it I never get a chance to process the match,
> unless there is a callback or something I'm missing.

There's a callback you are missing, of_parse_cb().

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  reply	other threads:[~2015-11-03 16:31 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-30 22:41 [PATCH v2 0/6] Add support for the TI TPS65086 PMIC Andrew F. Davis
2015-10-30 22:41 ` [PATCH v2 1/6] Documentation: tps65086: Add DT bindings for the " Andrew F. Davis
2015-10-30 22:41 ` [PATCH v2 2/6] Documentation: tps65086: Add DT bindings for the TPS65086 regulators Andrew F. Davis
2015-10-30 22:41 ` [PATCH v2 3/6] Documentation: tps65086: Add DT bindings for the TPS65086 GPO controller Andrew F. Davis
2015-10-30 22:41 ` [PATCH v2 4/6] mfd: tps65086: Add driver for the TPS65086 PMIC Andrew F. Davis
2015-10-30 22:41 ` [PATCH v2 5/6] regulator: tps65086: Add regulator " Andrew F. Davis
2015-11-01  2:37   ` Mark Brown
2015-11-03 15:57     ` Andrew F. Davis
2015-11-03 16:31       ` Mark Brown [this message]
2015-11-03 17:57         ` Andrew F. Davis
2015-10-30 22:41 ` [PATCH v2 6/6] gpio: tps65086: Add GPIO " Andrew F. Davis

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