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    SubjectRe: [PATCH 1/3] pinctrl: pinctrl-imx: add imx pinctrl core driver
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    On Sat, Apr 14, 2012 at 12:18 AM, Dong Aisheng <b29396@freescale.com> wrote:
    > From: Dong Aisheng <dong.aisheng@linaro.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@linaro.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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