2014-08-06 12:21 GMT+02:00 Takashi Iwai <ti...@suse.de>: > At Wed, 6 Aug 2014 11:44:14 +0200, > Jean-Michel Hautbois wrote: >> >> 2014-08-06 11:24 GMT+02:00 Takashi Iwai <ti...@suse.de>: >> > At Wed, 6 Aug 2014 11:10:27 +0200, >> > Jean-Michel Hautbois wrote: >> >> >> >> 2014-08-05 21:22 GMT+02:00 Shuah Khan <shuahk...@gmail.com>: >> >> > On Tue, Aug 5, 2014 at 10:01 AM, Takashi Iwai <ti...@suse.de> wrote: >> >> >>> Yes, it worked, if the firmware was in the /lib/firmware directory. >> >> >> >> >> > >> >> > ok it works when the firmware is in /lib/firmware. It sounds to me the >> >> > reason load fails when the firmware is under /sys/class/firmware is >> >> > fw_load_from_user_helper() returns -ENOENT when >> >> > CONFIG_FW_LOADER_USER_HELPER is disabled. >> >> > >> >> > It would be nice to see the entire dmesg with debug enabled though. >> >> > >> >> > -- Shuah >> >> >> >> It does not work with the 3.16 kernel even when firmware is in >> >> /lib/firmware, it worked before this patch is applied. >> > >> > Hm? 3.16 doesn't contain my patch yet. It's merged for 3.17-rc1. >> >> Oh, you are right of course, I am on upstream kernel and I have your >> patch. I don't mean your match is causing the issue though ;-). > > I see. > >> >> Here is what I got in my dmesg : >> >> [ 0.307856] __allocate_fw_buf: fw-lattice-ecp3.bit buf=bd81a480 >> >> [ 0.308029] lattice-ecp3 spi2.3: Direct firmware load for >> >> lattice-ecp3.bit failed with error -2 >> > >> > It's -ENOENT. Are you sure that you really have >> > /lib/firmware/lattice-ecp3.bit file? >> >> Yes : >> ls -al /lib/firmware/lattice-ecp3.bit >> -rwxr-xr-x 1 root root 897753 Aug 5 15:04 /lib/firmware/lattice-ecp3.bit > > Then you'd better bisect... > Or, at least, put a debug code to see which file is opened in the loop > in fw_get_filesystem_firmware().
Well, when this function is called, my rootfs is not yet mounted (I have a dedicated partition on a SDCard)... So I probably missed a step in order to get /lib/firmware before / is mounted... ? JM -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/