Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-08-07 Thread Alan Tull
On Thu, Jul 27, 2017 at 2:10 PM, Rob Herring wrote: > On Thu, Jul 27, 2017 at 11:35 AM, Alan Tull wrote: >> On Sun, Jun 25, 2017 at 8:51 PM, Wu Hao wrote: >> >> Hi Rob, >> >> I was hoping to pick your brain a bit on a DT question. >> >>> During FPGA device (e.g PCI-based) discovery, platform dev

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-08-02 Thread Alan Tull
On Wed, Aug 2, 2017 at 9:07 AM, Wu Hao wrote: > On Tue, Aug 01, 2017 at 04:04:44PM -0500, Alan Tull wrote: >> On Tue, Aug 1, 2017 at 3:43 AM, Wu Hao wrote: >> > On Mon, Jul 31, 2017 at 04:40:16PM -0500, Alan Tull wrote: >> >> On Thu, Jul 27, 2017 at 2:10 PM, Rob Herring wrote: >> >> > On Thu, Ju

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-08-02 Thread Wu Hao
On Tue, Aug 01, 2017 at 04:04:44PM -0500, Alan Tull wrote: > On Tue, Aug 1, 2017 at 3:43 AM, Wu Hao wrote: > > On Mon, Jul 31, 2017 at 04:40:16PM -0500, Alan Tull wrote: > >> On Thu, Jul 27, 2017 at 2:10 PM, Rob Herring wrote: > >> > On Thu, Jul 27, 2017 at 11:35 AM, Alan Tull wrote: > >> >> On

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-08-01 Thread Alan Tull
On Tue, Aug 1, 2017 at 3:43 AM, Wu Hao wrote: > On Mon, Jul 31, 2017 at 04:40:16PM -0500, Alan Tull wrote: >> On Thu, Jul 27, 2017 at 2:10 PM, Rob Herring wrote: >> > On Thu, Jul 27, 2017 at 11:35 AM, Alan Tull wrote: >> >> On Sun, Jun 25, 2017 at 8:51 PM, Wu Hao wrote: >> >> >> >> Hi Rob, >> >

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-08-01 Thread Wu Hao
On Mon, Jul 31, 2017 at 04:40:16PM -0500, Alan Tull wrote: > On Thu, Jul 27, 2017 at 2:10 PM, Rob Herring wrote: > > On Thu, Jul 27, 2017 at 11:35 AM, Alan Tull wrote: > >> On Sun, Jun 25, 2017 at 8:51 PM, Wu Hao wrote: > >> > >> Hi Rob, > >> > >> I was hoping to pick your brain a bit on a DT qu

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-07-31 Thread Alan Tull
On Thu, Jul 27, 2017 at 2:10 PM, Rob Herring wrote: > On Thu, Jul 27, 2017 at 11:35 AM, Alan Tull wrote: >> On Sun, Jun 25, 2017 at 8:51 PM, Wu Hao wrote: >> >> Hi Rob, >> >> I was hoping to pick your brain a bit on a DT question. >> >>> During FPGA device (e.g PCI-based) discovery, platform dev

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-07-28 Thread Wu Hao
On Thu, Jul 27, 2017 at 11:44:01AM -0500, Alan Tull wrote: > On Sun, Jun 25, 2017 at 8:51 PM, Wu Hao wrote: > > During FPGA device (e.g PCI-based) discovery, platform devices are > > registered for different FPGA function units. But the device node path > > isn't quite friendly to applications. >

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-07-27 Thread Rob Herring
On Thu, Jul 27, 2017 at 11:35 AM, Alan Tull wrote: > On Sun, Jun 25, 2017 at 8:51 PM, Wu Hao wrote: > > Hi Rob, > > I was hoping to pick your brain a bit on a DT question. > >> During FPGA device (e.g PCI-based) discovery, platform devices are >> registered for different FPGA function units. But

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-07-27 Thread Alan Tull
On Sun, Jun 25, 2017 at 8:51 PM, Wu Hao wrote: > During FPGA device (e.g PCI-based) discovery, platform devices are > registered for different FPGA function units. But the device node path > isn't quite friendly to applications. > Hi Hao, Please add a document for fpga-dev under Documentation/fp

Re: [PATCH v2 02/22] fpga: add FPGA device framework

2017-07-27 Thread Alan Tull
On Sun, Jun 25, 2017 at 8:51 PM, Wu Hao wrote: Hi Rob, I was hoping to pick your brain a bit on a DT question. > During FPGA device (e.g PCI-based) discovery, platform devices are > registered for different FPGA function units. But the device node path > isn't quite friendly to applications. >

[PATCH v2 02/22] fpga: add FPGA device framework

2017-06-25 Thread Wu Hao
During FPGA device (e.g PCI-based) discovery, platform devices are registered for different FPGA function units. But the device node path isn't quite friendly to applications. Consider this case, applications want to access child device's sysfs file for some information. 1) Access using bus-based