Re: [U-Boot] [PATCH v4 2/2] serial: bcm283x_mu: Detect disabled serial device

2016-08-15 Thread Alexander Graf
> Am 16.08.2016 um 05:30 schrieb Stephen Warren : > >> On 08/15/2016 09:48 AM, Alexander Graf wrote: >> On the raspberry pi, you can disable the serial port to gain dynamic >> frequency >> scaling which can get handy at times. >> >> However, in such a configuration the

Re: [U-Boot] [PATCH v4 2/2] serial: bcm283x_mu: Detect disabled serial device

2016-08-15 Thread Simon Glass
On 15 August 2016 at 21:30, Stephen Warren wrote: > > On 08/15/2016 09:48 AM, Alexander Graf wrote: >> >> On the raspberry pi, you can disable the serial port to gain dynamic >> frequency >> scaling which can get handy at times. >> >> However, in such a configuration the

Re: [U-Boot] [PATCH v4 2/2] serial: bcm283x_mu: Detect disabled serial device

2016-08-15 Thread Stephen Warren
On 08/15/2016 09:48 AM, Alexander Graf wrote: On the raspberry pi, you can disable the serial port to gain dynamic frequency scaling which can get handy at times. However, in such a configuration the serial controller gets its rx queue filled up with zero bytes which then happily get

[U-Boot] [PATCH v4 2/2] serial: bcm283x_mu: Detect disabled serial device

2016-08-15 Thread Alexander Graf
On the raspberry pi, you can disable the serial port to gain dynamic frequency scaling which can get handy at times. However, in such a configuration the serial controller gets its rx queue filled up with zero bytes which then happily get transmitted on to whoever calls getc() today. This patch