On Wed, Nov 26, 2014 at 02:17:06PM +0800, Guoqing Liu wrote: > Daer Sir, > I'm very sorry to trouble you. > Recently I found the uart2 at csr primaII platform can't work > well after the system goto standby and then resume. > > My test environment is as follows: > kernel: 3.10.16 That is a very old and obsolete kernel version. If a vendor is forcing you to stick to that version, please ask them for support as there's nothing that we can to do help here, sorry. Now if you can duplicate this on the 3.17 kernel release, that's a different story... good luck, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html