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From: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
To: Gon Solo <gonsolo@gmail.com>
Cc: JP <jp@jpvw.nl>, crope@iki.fi, Sean Young <sean@mess.org>,
	linux-media@vger.kernel.org,
	Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] si2157: Add support for Logilink VG0022A.
Date: Thu, 3 Oct 2019 14:42:25 -0300	[thread overview]
Message-ID: <20191003144225.0137bf6c@coco.lan> (raw)
In-Reply-To: <20191003162326.GA2727@Limone>

Em Thu, 3 Oct 2019 18:23:26 +0200
Gon Solo <gonsolo@gmail.com> escreveu:

> > No, I mean with the first patch you sent to the ML, with the powerup
> > hack.  
> 
> Boot time:
> 
> [    4.653257] si2168 1-0067: Silicon Labs Si2168-B40 successfully identified
> [    4.653259] si2168 1-0067: firmware version: B 4.0.2
> [    4.653279] usb 2-1: DVB: registering adapter 0 frontend 0 (Silicon Labs Si2168)...
> [    4.653284] dvbdev: dvb_create_media_entity: media entity 'Silicon Labs Si2168' registered.
> ...
> [    4.694785] si2157 2-0063: found a 'Silicon Labs Si2147-A30'
> [    4.694787] si2157 2-0063: Silicon Labs Si2147/2148/2157/2158 successfully attached
> [    4.717814] usb 2-1: dvb_usb_v2: 'Logilink VG0022A' successfully initialized and connected
> [    4.717880] usbcore: registered new interface driver dvb_usb_af9035
> 
> VLC time:
> 
> [  175.490609] si2168 1-0067: downloading firmware from file 'dvb-demod-si2168-b40-01.fw'
> [  176.746585] si2168 1-0067: firmware version: B 4.0.25
> [  176.781570] si2157 2-0063: firmware version: \xff.\xff.255

Weird... it sounds that, after si2168 has its firmware updated, it
starts interfering at si2157. Perhaps there's a bug at si2168 I2C
gate mux logic. Are you using a new Kernel like 5.2?

I guess the best is to enable the debug logs in order to see what's
happening on both cases.

You can enable all debug messages (after loading the modules) with:

	# for i in $(cat /sys/kernel/debug/dynamic_debug/control |grep -E '(si21|af9035)' |cut -d' ' -f 1); do echo "file $i +p" >>/sys/kernel/debug/dynamic_debug/control; done

You could also try to disable the firmware upload at si2168 and see
if the si2157 reads will succeed.


Thanks,
Mauro

  reply	other threads:[~2019-10-03 17:42 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-30 10:32 DVB-T2 Stick Gonsolo
2019-02-19 21:30 ` Sean Young
2019-10-01 22:19   ` Gonsolo
2019-10-01 23:52     ` Mauro Carvalho Chehab
2019-10-02 14:13       ` [PATCH] si2157: Add support for Logilink VG0022A Gon Solo
2019-10-02 14:13         ` Gon Solo
2019-10-02 14:27           ` Sean Young
2019-10-02 14:44             ` Gonsolo
2019-10-02 15:06               ` Sean Young
2019-10-02 15:21                 ` Gonsolo
2019-10-02 17:23                   ` JP
2019-10-02 18:49                     ` Mauro Carvalho Chehab
2019-10-03  8:06                       ` [PATCH 0/1] Testing timing patch " Gon Solo
2019-10-03  8:06                       ` [PATCH 1/1] Test Mauros timing patch Gon Solo
2019-10-03 10:13                       ` [PATCH] si2157: Add support for Logilink VG0022A Gonsolo
2019-10-03 10:57                         ` Gonsolo
2019-10-03 11:17                           ` Mauro Carvalho Chehab
2019-10-03 11:41                             ` Gonsolo
2019-10-03 12:49                               ` Mauro Carvalho Chehab
2019-10-03 12:52                                 ` Mauro Carvalho Chehab
2019-10-03 13:02                                   ` Gon Solo
2019-10-03 13:53                                     ` Gonsolo
2019-10-03 14:05                                       ` Mauro Carvalho Chehab
2019-10-03 14:29                                         ` Gonsolo
2019-10-03 12:01                             ` Gon Solo
2019-10-03 12:12                               ` Mauro Carvalho Chehab
2019-10-03 12:20                                 ` Gon Solo
2019-10-03 12:45                                   ` [PATCH 0/3] " Gon Solo
2019-10-03 12:45                                   ` [PATCH 1/3] [PATCH] af9035: Better explain how i2c bus speed is computed Gon Solo
2019-10-03 12:45                                   ` [PATCH 2/3] [PATCH] s2157: Handle bogus chip version Gon Solo
2019-10-03 12:45                                   ` [PATCH 3/3] [PATCH] af9035: Add Logilink VG0022A id Gon Solo
2019-10-03 11:05                         ` [PATCH] si2157: Add support for Logilink VG0022A Mauro Carvalho Chehab
2019-10-03 15:00                           ` Gonsolo
2019-10-03 15:02                             ` Mauro Carvalho Chehab
2019-10-03 15:17                               ` Gonsolo
2019-10-03 16:03                               ` Gon Solo
2019-10-03 16:09                                 ` Mauro Carvalho Chehab
2019-10-03 16:23                                   ` Gon Solo
2019-10-03 17:42                                     ` Mauro Carvalho Chehab [this message]
2019-10-03 17:49                                       ` Gonsolo
2019-10-03 18:32                                       ` Gon Solo
2019-10-03 18:42                                         ` JP
2019-10-03 18:50                                           ` Gonsolo
2019-10-03 18:53                                             ` Gonsolo
2019-10-03 19:19                                           ` Gonsolo
2019-10-03 19:39                                             ` Mauro Carvalho Chehab
2019-10-03 19:44                                               ` Mauro Carvalho Chehab
2019-10-03 19:51                                                 ` Gonsolo
2019-10-03 20:03                                                   ` Mauro Carvalho Chehab
2019-10-03 20:32                                                     ` Gonsolo
2019-10-04 11:50                                                     ` JP
2019-10-04 12:08                                                       ` Mauro Carvalho Chehab
2019-10-04 13:15                                                         ` [PATCH 1/4] media: si2168: use bits instead of bool for flags Mauro Carvalho Chehab
2019-10-04 13:15                                                           ` [PATCH 2/4] media: si2168: add support for not loading a firmware Mauro Carvalho Chehab
2019-10-04 13:15                                                           ` [PATCH 3/4] media: af9035: add support for Logilink VG0022A Mauro Carvalho Chehab
2019-10-09 21:44                                                             ` Gon Solo
2019-10-09 22:04                                                               ` Gon Solo
2019-10-10  8:23                                                                 ` Gon Solo
2019-10-10  9:18                                                                 ` Gon Solo
2019-10-10  9:50                                                                   ` [PATCH 0/4] Add " Gon Solo
2019-10-10 10:10                                                                     ` Mauro Carvalho Chehab
2019-10-10  9:51                                                                   ` [PATCH 1/4] si2168: Use bits and convert to kernel-doc format Gon Solo
2019-10-10  9:51                                                                   ` [PATCH 2/4] si2157: Add option for not downloading firmware Gon Solo
2019-10-10  9:51                                                                   ` [PATCH 3/4] af9035: Make speed computation clear Gon Solo
2019-10-10  9:51                                                                   ` [PATCH 4/4] Add support for Logilink VG0022A Gon Solo
2019-10-10 11:44                                                                     ` Gon Solo
2019-11-15 18:06                                                                       ` Gon Solo
2019-10-04 13:15                                                           ` [PATCH 4/4] media: af9035: add the formula used for the I2C speed Mauro Carvalho Chehab
2019-10-10 10:55                                                           ` [PATCH 1/4] media: si2168: use bits instead of bool for flags Gon Solo
2019-10-10 11:34                                                             ` Mauro Carvalho Chehab
2019-10-10 11:42                                                               ` Mauro Carvalho Chehab
2019-10-04 13:50                                                         ` [PATCH] si2157: Add support for Logilink VG0022A JP
2019-10-04 14:16                                                           ` Mauro Carvalho Chehab
2019-10-03 19:40                                             ` Gonsolo
2019-10-03 19:52                                               ` Mauro Carvalho Chehab
2019-10-03 19:57                                                 ` Gonsolo
2019-10-02 15:00           ` Mauro Carvalho Chehab

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