pinctrl: imx: detect uninitialized pins

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The pinctrl driver initialized the register offsets for the pins
with 0. On Vybrid an offset of 0 is a valid offset for the pinctrl
mux register. So far, this was solved using the ZERO_OFFSET_VALID
flag which allowed offsets of 0. However, this does not allow to
verify whether a pins struct imx_pmx_func was initialized or not.

Use signed offset values for register offsets and initialize those
with -1 in order to detect uninitialized offset values reliable.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Stefan Agner 2014-09-06 18:25:04 +02:00 • committed by Linus Walleij

parent 3ccc11f6b8

commit 3dac1918a4

3 changed files with 9 additions and 9 deletions

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9

drivers/pinctrl/freescale/pinctrl-imx.c

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7

drivers/pinctrl/freescale/pinctrl-imx.h

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2

drivers/pinctrl/freescale/pinctrl-vf610.c

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