linux-kernel - Re: [PATCH v2 2/4] pinctrl: qpnp: Qualcomm PMIC pin controller driver

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Date:	Mon, 21 Jul 2014 19:16:16 +0300
From:	"Ivan T. Ivanov" <iivanov@...sol.com>
To:	divya ojha <odivya77@...il.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Grant Likely <grant.likely@...aro.org>,
	Bjorn Andersson <bjorn.andersson@...ymobile.com>,
	Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2 2/4] pinctrl: qpnp: Qualcomm PMIC pin controller
 driver

On Mon, 2014-07-21 at 21:32 +0530, divya ojha wrote:
> Hi,
> 
> On Thu, Jul 17, 2014 at 8:55 PM, Ivan T. Ivanov <iivanov@...sol.com> wrote:
> > From: "Ivan T. Ivanov" <iivanov@...sol.com>
> >
> > This is the pinctrl, pinmux, pinconf and gpiolib driver for the
> > Qualcomm GPIO and MPP sub-function blocks found in the PMIC chips.
> >
> > Signed-off-by: Ivan T. Ivanov <iivanov@...sol.com>
> > ---
> >  drivers/pinctrl/Kconfig                       |   12 +
> >  drivers/pinctrl/Makefile                      |    1 +
> >  drivers/pinctrl/pinctrl-qpnp.c                | 1565 +++++++++++++++++++++++++
> >  include/dt-bindings/pinctrl/qcom,pm8xxx-mpp.h |   34 +
> ..
> +       struct device *dev = qctrl->dev;
> > +       struct pinctrl_pin_desc *desc, *descs;
> > +       struct qpnp_padinfo *pad, *pads;
> > +       int idx, ret, cnt, gps, ais, aos, css;
> > +       const char **names, *format;
> > +       unsigned int addr;
> > +
> > +       pads = devm_kcalloc(dev, qchip->npads, sizeof(*pads), GFP_KERNEL);
> 
> when do we free these structures..?

Good description could be found here[1].

Regards,
Ivan

[1] Documentation/driver-model/devres.txt

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