1. 2017-07-30 Re: [PATCH v2 2/2] serial: 8250: Use hrtimers for rs4 linux-oma Greg KH 2. 2017-07-30 Re: [PATCH v2 2/2] serial: 8250: Use hrtimers for rs4 linux-ser Greg KH 3. 2017-07-20 [PATCH v2 2/2] serial: 8250: Use hrtimers for rs485 d linux-oma Rafael Gago 4. 2017-07-20 [PATCH v2 2/2] serial: 8250: Use hrtimers for rs485 d linux-ser Rafael Gago