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authorBenoît Thébaudeau <benoit.thebaudeau@advansee.com>2012-08-20 10:55:41 +0000
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-09-01 14:58:28 +0200
commit5dafa4543c399d329c7b01df1afa98437861cac0 (patch)
tree2c33860a28c4d7c492e1f15e0aa8dd9a13d3e482 /arch/arm
parent5c8d14dfd978eb787307298110a32329e989e6ab (diff)
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mxc: Make gpio_get_value() use PSR
gpio_get_value() should use PSR like Linux, not DR, because DR does not always reflect the pin state, while PSR does. This is especially useful to detect a short circuit on a GPIO pin configured as output, or to read the level of a pin controlled by a non-GPIO IOMUX function. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Stefano Babic <sbabic@denx.de> Acked-by: Stefano Babic <sbabic@denx.de>
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