fix smatch warning:
drivers/pinctrl/pinctrl-imx.c:435:21: warning: duplicate const
Signed-off-by: NRichard Zhao <richard.zhao@freescale.com>
Acked-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Fix regression for commit 3a86a5f8 (pinctrl: pinctrl-imx: free allocated
pinctrl_map structure only once and use kernel facilities for IMX_PMX_DUMP)
introduced in 3.5-rc3.
With above commit, the debug code will alway be excuted.
Change to excute it only when DEBUG is defined.
Signed-off-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

new_map is allocated according to map_num instead of grp->npins,
if a pin or some pins of a group has NO_PAD_CTL property, the map_num
and the grp->npin are different definitely.

When we set mapping information to the new_map[], we should skip those
pins with NO_PAD_CTL from index, otherwise it is possible the driver
will aceesss to a unallocated region.
Acked-by: NDong Aisheng <dong.aisheng@linaro.org>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: NHui Wang <jason77.wang@gmail.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

After create config map, the new_map pointer becomes point to
PIN_MAP_TYPE_CONFIGS_PIN map rather than PIN_MAP_TYPE_MUX_GROUP map any more.
Thus using new_map pointer to display the MUX_GROUP info is not correct.
Using map pointer instead to show the correct MUX_GROUP map info.
Original the debug message is:
imx6q-pinctrl 20e0000.iomuxc: maps: function Yp group MX6Q_PAD_SD3_CMD num 12
After fix it is:
imx6q-pinctrl 20e0000.iomuxc: maps: function usdhc3 group usdhc3grp-1 num 11
Reported-by: NRichard Zhao <richard.zhao@freescale.com>
Signed-off-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

of_get_parent can return null if no parent node found, so the allocated new_map
should be freed.
Signed-off-by: NDevendra Naga <devendra.aaru@gmail.com>
Acked-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

pinctrl: pinctrl-imx: free allocated pinctrl_map structure only once and use kernel facilities for IMX_PMX_DUMP

a) as we allocate the pinctrl_map structure at imx_dt_node_to_map at  line 167, anyway
   if its an element, or a num_elements * (sizeof(type)) elements allocated to one single
   pointer must be freed only once.

CASE. A)

as new_map is not moved and allocated like,

for (i = 0; i < MAX_ELEMS; i++) {
    new_map[i] = kmalloc(numelems * size, GFP_KERNEL);
}

its freed as

for (i = 0; i < MAX_ELEMS; i++) {
    kfree(new_map[i]);
}

CASE. B)
and its allocated like
        new_map = kmalloc(numelems * size, GFP_KERNEL);

it just needs kfree not as case A's.

b) use KERN_DEBUG facility for the IMX_PMX_DUMP macro.
Signed-off-by: NDevendra Naga <devendra.aaru@gmail.com>
Acked-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

Acked-by: NStephen Warren <swarren@wwwdotorg.org>
Signed-off-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@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.
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
Acked-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NDong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>