linux-kernel - Re: [PATCH 1/3] pinctrl: pinctrl-imx: add imx pinctrl core driver

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Date:	Sat, 14 Apr 2012 02:17:13 +0800
From:	Dong Aisheng <dongas86@...il.com>
To:	Dong Aisheng <b29396@...escale.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree-discuss@...ts.ozlabs.org, linus.walleij@...ricsson.com,
	swarren@...dotorg.org, s.hauer@...gutronix.de,
	shawn.guo@...escale.com, kernel@...gutronix.de,
	grant.likely@...retlab.ca, rob.herring@...xeda.com
Subject: Re: [PATCH 1/3] pinctrl: pinctrl-imx: add imx pinctrl core driver

On Sat, Apr 14, 2012 at 12:18 AM, Dong Aisheng <b29396@...escale.com> wrote:
> From: Dong Aisheng <dong.aisheng@...aro.org>
>
> The driver has mux and config support while the gpio is still
> not supported.
> For select input setting, the driver will handle it internally
> and do not need user to take care of it.
>
> The pinctrl-imx core driver will parse the dts file and dynamically
> create the pinmux functions and groups.
>
> Each IMX SoC pinctrl driver should register pins with a pin register map
> including mux register and config register and select input map to core
> for proper operations.
>
> Signed-off-by: Dong Aisheng <dong.aisheng@...aro.org>
> ---
>  .../bindings/pinctrl/fsl,imx6q-pinctrl.txt         |  201 ++++++
>  drivers/pinctrl/Kconfig                            |    4 +
>  drivers/pinctrl/Makefile                           |    1 +
>  drivers/pinctrl/pinctrl-imx.c                      |  716 ++++++++++++++++++++
>  drivers/pinctrl/pinctrl-imx.h                      |  117 ++++
>  5 files changed, 1039 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,imx6q-pinctrl.txt
>  create mode 100644 drivers/pinctrl/pinctrl-imx.c
>  create mode 100644 drivers/pinctrl/pinctrl-imx.h
>
.........
> +static int __devinit imx_pmx_parse_functions(struct device_node *np,
> +                       struct imx_pinctrl_info *info, u32 index)
> +{
> +       struct device_node *child;
> +       struct imx_pmx_func *func;
> +       struct imx_pin_group *grp;
> +       int ret;
> +       static u32 grp_index;
> +       u32 i = 0;
> +
> +       dev_dbg(info->dev, "parse function(%d): %s\n", index, np->name);
> +
> +       func = &info->functions[index];
> +
> +       /* Initialise function */
> +       func->name = np->name;
> +       func->num_groups = of_get_child_count(np);
The driver depends on another dt patch which seems missed the 3.4 kernel.
[PATCH V3 1/1] dt: add of_get_child_count helper function
http://lists.infradead.org/pipermail/linux-arm-kernel/2012-February/084327.html
I just sent out the mail to check with Rob.

Regards
Dong Aisheng
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