From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: MIME-Version: 1.0 References: <20181029144222.26927-1-agust@denx.de> <20181029164857.GA2453@archbook> <20181030121913.3f5f8458@crub> <20181101193336.766566fc@crub> In-Reply-To: <20181101193336.766566fc@crub> From: Alan Tull Date: Thu, 1 Nov 2018 13:46:27 -0500 Message-ID: Subject: Re: [PATCH] fpga: xilinx-spi: Use unique FPGA manager names Content-Type: text/plain; charset="UTF-8" To: Anatolij Gustschin Cc: Moritz Fischer , linux-fpga@vger.kernel.org List-ID: On Thu, Nov 1, 2018 at 1:33 PM Anatolij Gustschin wrote: > > On Thu, 1 Nov 2018 13:21:00 -0500 > Alan Tull atull@kernel.org wrote: > > >On Tue, Oct 30, 2018 at 6:19 AM Anatolij Gustschin wrote: > >> > >> Hi Moritz, > >> > >> On Mon, 29 Oct 2018 09:48:57 -0700 > >> Moritz Fischer mdf@kernel.org wrote: > >> ... > >> >Sounds like a udev problem that can be solved by looking at the > >> >parent device? > >> > >> Yes, but there are still all kinds of small embedded systems > >> without udev/systemd support. > > > >What do you see if you look at the following for your fpga manager > >(may be other than fpga0)? > > > >/sys/class/fpga_manager/fpga0/device > > > >or > > > > /sys/class/fpga_manager/fpga0/of_node > > of_node isn't there, it is a non-dt platform. Oh yeah. > > # ls -l /sys/class/fpga_manager/fpga0/device > lrwxrwxrwx 1 root root 0 Nov 1 19:26 /sys/class/fpga_manager/fpga0/device -> ../../../spi1.0 Is 'device' giving the info this patch is adding to 'name'? > > # ls -l /sys/class/fpga_manager/fpga0/device/ > total 0 > lrwxrwxrwx 1 root root 0 Nov 1 16:48 driver -> ../../../../../../../../../../../../bus/spi/drivers/altera-ps-spi > -rw-r--r-- 1 root root 4096 Nov 1 19:26 driver_override > drwxr-xr-x 3 root root 0 Nov 1 16:48 fpga_manager > -r--r--r-- 1 root root 4096 Nov 1 19:26 modalias > drwxr-xr-x 2 root root 0 Nov 1 19:26 power > drwxr-xr-x 2 root root 0 Nov 1 19:26 statistics > lrwxrwxrwx 1 root root 0 Nov 1 16:48 subsystem -> ../../../../../../../../../../../../bus/spi > -rw-r--r-- 1 root root 4096 Nov 1 16:48 uevent > > Thanks, > > Anatolij