-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said: | Andy Green wrote: |> Which clock, SDIO external clock? We can gate it to only operate during |> pending access like we did Glamo. | | Yes, it's something that's probably safe to implement in the S3C MCI | driver. Nothing else in the system needs to know about it. | |> It won't hurt GPS and it will block bulk of this 17mW I guess. | | Yes, when I stopped the clock by just forcing the pin low, I got | the same current reduction (within measurement tolerances, i.e., | about +/-1.5mA in this case) as when shutting down the driver | completely.
I guess some of that 1.5mA was the P-channel driver of the clock passing fault current when it was high, so it'll be at least as good by the sound of it. |> So we explain the kernel policy for "turning off" WLAN is to either not |> insert the modules, or modprobe -r them. | | For now, yes. Or to unbind it, if you want to avoid module | insertion/removal overhead and make things work in a monolithic | kernel as well. OK, good point. |> We can take out the /sys if that claims to impact this then, and we're done? | | Yeah, I'll send you a patch that drops it from sysfs. We still | need the internal mechanism to reset the module, but that can | be a lot simpler. Fine. - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAklwa1MACgkQOjLpvpq7dMoXOQCeKOsi8LwukRLEYp5/d7wjB3SO yE4An0FzVlh5vcQ8DKUtzWvu5ZIp6ad+ =BaAV -----END PGP SIGNATURE-----
