Commit d97556c8 authored Jan 05, 2017 by Tony Lindgren

ARM: dts: Fix omap3 off mode pull defines

We need to also have OFFPULLUDENABLE bit set to use the off mode pull values.
Otherwise the line is pulled down internally if no external pull exists.

This is has some documentation at:

http://processors.wiki.ti.com/index.php/Optimizing_OMAP35x_and_AM/DM37x_OFF_mode_PAD_configuration

Note that the value is still glitchy during off mode transitions as documented
in spz319f.pdf "Advisory 1.45". It's best to use external pulls instead of
relying on the internal ones for off mode and even then anything pulled up
will get driven down momentarily on off mode restore for GPIO banks other
than bank1.

Signed-off-by: Tony Lindgren <tony@atomide.com>

parent 7ce7d89f

include/dt-bindings/pinctrl/omap.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -45,8 +45,8 @@
		#define PIN_OFF_NONE 0
		#define PIN_OFF_OUTPUT_HIGH (OFF_EN \| OFFOUT_EN \| OFFOUT_VAL)
		#define PIN_OFF_OUTPUT_LOW (OFF_EN \| OFFOUT_EN)
		#define PIN_OFF_INPUT_PULLUP (OFF_EN \| OFF_PULL_EN \| OFF_PULL_UP)
		#define PIN_OFF_INPUT_PULLDOWN (OFF_EN \| OFF_PULL_EN)
		#define PIN_OFF_INPUT_PULLUP (OFF_EN \| OFFOUT_EN \| OFF_PULL_EN \| OFF_PULL_UP)
		#define PIN_OFF_INPUT_PULLDOWN (OFF_EN \| OFFOUT_EN \| OFF_PULL_EN)
		#define PIN_OFF_WAKEUPENABLE WAKEUP_EN

		/*

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