On Mon, Nov 12, 2012 at 03:40:25PM +0800, Bo Shen wrote:
> + ssc0 {
> + pinctrl_ssc0_tx: ssc0_tx-0 {
> + atmel,pins =
> + <1 16 0x1 0x1 /* PB16
> periph A with pull up */
> + 1 17 0x1 0x1 /* PB17
> periph A with pull up */
> + 1 18 0x1 0x1>; /* PB18
> periph A with pull up */
> + };Do we really want the pull ups here? Normally CMOS devices don't have pulls, or the pulls are disabled during normal operation, as otherwise when the logic level is different to whatever the pull is doing power is wasted driving against the resistor.
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