[PATCH 08/10] pinctrl: single: support pinconf generic

* Haojian Zhuang [off-list ref] [121018 02:08]:

Add pinconf generic support with POWER SOURCE, BIAS PULL.

...

+	case PIN_CONFIG_POWER_SOURCE:
+		if (pcs->psmask == PCS_OFF_DISABLED
+			|| pcs->psshift == PCS_OFF_DISABLED)
+			return -ENOTSUPP;
+		data &= pcs->psmask;
+		data = data >> pcs->psshift;
+		*config = data;
+		return 0;
+		break;

Hmm, only slightly related to this patch, mostly a generic
question to others: Do others have any mux registers with
status bits for things like PIN_CONFIG_POWER_SOURCE?

I could use PIN_CONFIG_POWER_SOURCE for controlling the PBIAS
for omap MMC. But there's also a status bit that needs to be
checked for that. I think there was some other similar mux
register for USB PHY that has a status register.

So I'm wondering should the checking for status bit be handled
in the pinctrl consume driver? Or should we have some bindings
for that?

Regards,

Tony