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From: Mark Brown <broonie@kernel.org>
To: Flora Fu <flora.fu@mediatek.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Samuel Ortiz <sameo@linux.intel.com>,
	Lee Jones <lee.jones@linaro.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	linux-arm-kernel@lists.infradead.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>,
	Russell King <linux@arm.linux.org.uk>,
	Grant Likely <grant.likely@linaro.org>,
	Santosh Shilimkar <santosh.shilimkar@ti.com>,
	Sandeep Nair <sandeep_n@ti.com>,
	Andy Gross <agross@codeaurora.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Stephen Warren <swarren@nvidia.com>,
	Thierry Reding <treding@nvidia.com>,
	Peter De Schrijver <pdeschrijver@nvidia.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Vladimir Murzin <vladimir.murzin@arm.com>,
	Ashwin Chaugule <ashwin.chaugule@linaro.org>,
	"Joe.C" <yingjoe.chen@mediatek.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	srv_heupstream@mediatek.com, Sascha Hauer <kernel@pengutronix.de>,
	Eddie Huang <eddie.huang@mediatek.com>,
	Dongdong Cheng <dongdong.cheng@mediatek.com>
Subject: Re: [PATCH v2 3/8] regulator: MT6397: Add support for MT6397 regulator
Date: Fri, 28 Nov 2014 15:22:47 +0000	[thread overview]
Message-ID: <20141128152247.GR7712@sirena.org.uk> (raw)
In-Reply-To: <1417146874-5232-4-git-send-email-flora.fu@mediatek.com>

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On Fri, Nov 28, 2014 at 11:54:29AM +0800, Flora Fu wrote:

> @@ -96,5 +97,4 @@ obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
>  obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
>  obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o
>  
> -
>  ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG

Random whitespace change here...

> +	/* For HW design, buck voltage control register has two parts.
> +	 * part 1: vsel_reg for register mode
> +	 * part 2: voselon_reg or hw control mode
> +	 * Both parts should be updated and sync when user set voltage.
> +	 */

Why does nothing else in the driver know about this "hw control mode" -
what does it actually mean, shouldn't it affect some of the other
operations?

> +	ret = regmap_update_bits(rdev->regmap, info->desc.vsel_reg,
> +		info->desc.vsel_mask, sel);
> +	if (ret != 0) {
> +		dev_err(&rdev->dev, "Failed to update vsel: %d\n", ret);
> +		return ret;
> +	}
> +	ret = regmap_update_bits(rdev->regmap, info->voselon_reg,

Missing blank line between these blocks.

> +static int mt6397_buck_get_voltage_sel(struct regulator_dev *rdev)
> +{

> +static int mt6397_regulator_is_enabled(struct regulator_dev *rdev)
> +{

To repeat my comments on the last version: please use the generic regmap
operations rather than copying them.

> +	np = of_node_get(pdev->dev.parent->of_node);
> +	if (!np)
> +		return -EINVAL;
> +
> +	regulators = of_get_child_by_name(np, "regulators");

To further repeat my previous review comments:

| Define regulators_node and of_match in the regulator desc and you can
| remove both this table and all your DT matching code in the driver, the
| core will handle it for you.

Please don't ignore review comments.

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       reply	other threads:[~2014-11-28 15:23 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1417146874-5232-1-git-send-email-flora.fu@mediatek.com>
     [not found] ` <1417146874-5232-4-git-send-email-flora.fu@mediatek.com>
2014-11-28 15:22   ` Mark Brown [this message]
     [not found]     ` <1417402305.30873.78.camel@mtksdaap41>
2014-12-01 16:12       ` Mark Brown
     [not found] ` <1417146874-5232-9-git-send-email-flora.fu@mediatek.com>
2014-11-28 15:30   ` [PATCH v2 8/8] ARM: dts: mt8135: " Mark Brown
     [not found]     ` <1417403967.9547.2.camel@mtksdaap41>
2014-12-01  6:40       ` Sascha Hauer
2014-12-01 11:16       ` Mark Brown
     [not found] ` <1417146874-5232-7-git-send-email-flora.fu@mediatek.com>
2014-11-28 15:30   ` [PATCH v2 6/8] dt-bindings: Add document " Mark Brown
     [not found] ` <1417146874-5232-2-git-send-email-flora.fu@mediatek.com>
2014-11-28 15:32   ` [PATCH v2 1/8] soc: mediatek: Add PMIC wrapper for MT8135 and MT6397 SoC Mark Brown
2014-12-01  7:04 ` [PATCH v2 0/8] Add Support for MediaTek PMIC MT6397 MFD Core and Regulator Sascha Hauer
     [not found] ` <1417146874-5232-3-git-send-email-flora.fu@mediatek.com>
2014-12-01 11:47   ` [PATCH v2 2/8] mfd: MT6397: Add support for PMIC MT6397 MFD Lee Jones
2014-12-03  8:40     ` Flora Fu
2014-12-03  9:26       ` Lee Jones

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