提交 d97556c8 编写于 作者: T 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: NTony Lindgren <tony@atomide.com>
上级 7ce7d89f
......@@ -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
/*
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册