Commits
Markus Pargmann committed 16837f95888
pinctrl: fsl: imx: Check for 0 config register 0 is used in all pinfunction definitions when a config register is not available, for example imx25-pinfunc.h. If a configuration value is used for such a pinfunction the driver will always write it to the configuration register if it is not -1. For a 0 configuration register the configuration value is written to offset 0x0. This can lead to a crashing/hanging system without any warning message. This patch checks for 0 config register and sets the internal value to -1. If the configuration value is not NO_PADCTL this leads to an error message that applying the configuration failed. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Tested-by: Stefan Agner <stefan@agner.ch> Acked-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>