Re: [PATCH v5 1/3] ARM: at91: atmel-ssc: add pinctrl support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Hi Mark,

On 11/13/2012 16:50, Mark Brown wrote:
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.

After checking with internal, it does not need pull up. I will correct this in next version.


Best Regards,
Bo Shen

To unsubscribe from this list: send the line "unsubscribe linux-sound" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at

[Index of Archives]     [Pulseaudio]     [Linux Audio Users]     [ALSA Devel]     [Fedora Desktop]     [Fedora SELinux]     [Big List of Linux Books]     [Yosemite News]     [KDE Users]

  Powered by Linux