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[178.235.254.230]) by smtp.gmail.com with ESMTPSA id v21-20020a2e2f15000000b002456e6cdab2sm1666413ljv.93.2022.03.19.17.15.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Mar 2022 17:15:24 -0700 (PDT) From: Janusz Krzysztofik To: Tony Lindgren , Aaro Koskinen Cc: Paul Walmsley , Alan Stern , Greg Kroah-Hartman , Helge Deller , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Arnd Bergmann Subject: Re: [RFC RFT PATCH 0/4] ARM: OMAP1: clock: Convert to CCF Date: Sun, 20 Mar 2022 01:15:22 +0100 Message-ID: <3093204.5fSG56mABF@dell> In-Reply-To: <20220319212119.GG1986@darkstar.musicnaut.iki.fi> References: <20220310233307.99220-1-jmkrzyszt@gmail.com> <20220319184952.GF1986@darkstar.musicnaut.iki.fi> <20220319212119.GG1986@darkstar.musicnaut.iki.fi> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Aaro, On Saturday, 19 March 2022 22:21:19 CET Aaro Koskinen wrote: > Hi, > > On Sat, Mar 19, 2022 at 08:49:55PM +0200, Aaro Koskinen wrote: > > On Sat, Mar 12, 2022 at 10:14:31AM +0200, Tony Lindgren wrote: > > > * Janusz Krzysztofik [220310 23:32]: > > > > The main motivation behind this series is planned resurection of OMAP1 > > > > camera driver. Since OMAP1 clock internals have never been visible to > > > > drivers, that driver used to use v4l2-clk to expose a pixel clock for a > > > > sensor. The v4l2-clk code has been recently depreciated and removed from > > > > the media subtree, hence the need for an alternative solution. > > > > > > Nice :) This will also help Arnd with building multi-v5 kernels. > > > > This will need more testing still... The patch 4 is breaking at least 770 > > (the display/fb doesn't work anymore). > > Patches 1-3 are OK on Nokia 770, OSK and Palm TE. > > Patch 4 breaks 770, but OSK and Palm TE are OK. > > Below is the problem with 770. As a quick hack, I tried replacing > all clk_enable/disable()s with prepare_enable/disable_unprepare()s in > drivers/video/fbdev/omap/hwa742.c and drivers/video/fbdev/omap/sossi.c > and that seems to help... > > [ 0.374389] omapfb: lph8923 rev 92 LCD detected, 16 data lines > [ 0.374816] omapfb: configured for panel lph8923 > [ 0.383789] omapfb: LCDC initialized > [ 0.384216] ------------[ cut here ]------------ > [ 0.384368] WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:1012 clk_core_enable+0x94/0xb0 > [ 0.384613] Enabling unprepared ck_sossi Yes, I've identified still a few drivers that need to be updated, I'll prepare v2 of PATCH 3/4 and resubmit. Thanks, Janusz > [ 0.384704] Modules linked in: > [ 0.384796] CPU: 0 PID: 1 Comm: swapper Not tainted 5.17.0-rc8-770-los_381206+-00072-gb2406fc1ddd4 #2 > [ 0.385009] Hardware name: Nokia 770 > [ 0.385101] unwind_backtrace from show_stack+0x10/0x14 > [ 0.385314] show_stack from __warn+0xac/0xe4 > [ 0.385528] __warn from warn_slowpath_fmt+0x90/0xc8 > [ 0.385711] warn_slowpath_fmt from clk_core_enable+0x94/0xb0 > [ 0.385894] clk_core_enable from clk_core_enable_lock+0x18/0x2c > [ 0.386077] clk_core_enable_lock from sossi_init+0xa0/0x258 > [ 0.386260] sossi_init from hwa742_init+0x90/0x538 > [ 0.386474] hwa742_init from omapfb_do_probe+0x200/0x68c > [ 0.386657] omapfb_do_probe from mipid_spi_probe+0x1b4/0x230 > [ 0.386840] mipid_spi_probe from spi_probe+0x48/0x6c > [ 0.387054] spi_probe from really_probe+0xac/0x2f0 > [ 0.387237] really_probe from __driver_probe_device+0x80/0xe4 > [ 0.387390] __driver_probe_device from driver_probe_device+0x30/0xd8 > [ 0.387573] driver_probe_device from __driver_attach+0x70/0xf0 > [ 0.387756] __driver_attach from bus_for_each_dev+0x74/0xc0 > [ 0.387908] bus_for_each_dev from bus_add_driver+0x14c/0x1d8 > [ 0.388061] bus_add_driver from driver_register+0x74/0x108 > [ 0.388244] driver_register from do_one_initcall+0x4c/0x1cc > [ 0.388427] do_one_initcall from kernel_init_freeable+0x170/0x1f4 > [ 0.388641] kernel_init_freeable from kernel_init+0x10/0x108 > [ 0.388824] kernel_init from ret_from_fork+0x14/0x2c > [ 0.388977] Exception stack(0xc0c41fb0 to 0xc0c41ff8) > [ 0.389099] 1fa0: 00000000 00000000 00000000 00000000 > [ 0.389282] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 0.389434] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > [ 0.389556] ---[ end trace 0000000000000000 ]--- > [ 0.389709] omapfb omapfb: invalid SoSSI sync pattern: 00000000, 00000000 > [ 0.389831] ------------[ cut here ]------------ > [ 0.389923] WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:953 clk_core_disable+0xb4/0xcc > [ 0.390136] ck_sossi already disabled > [ 0.390228] Modules linked in: > [ 0.390319] CPU: 0 PID: 1 Comm: swapper Tainted: G W 5.17.0-rc8-770-los_381206+-00072-gb2406fc1ddd4 #2 > [ 0.390502] Hardware name: Nokia 770 > [ 0.390594] unwind_backtrace from show_stack+0x10/0x14 > [ 0.390808] show_stack from __warn+0xac/0xe4 > [ 0.391021] __warn from warn_slowpath_fmt+0x90/0xc8 > [ 0.391204] warn_slowpath_fmt from clk_core_disable+0xb4/0xcc > [ 0.391387] clk_core_disable from clk_core_disable_lock+0x18/0x24 > [ 0.391540] clk_core_disable_lock from sossi_init+0x1bc/0x258 > [ 0.391754] sossi_init from hwa742_init+0x90/0x538 > [ 0.391937] hwa742_init from omapfb_do_probe+0x200/0x68c > [ 0.392120] omapfb_do_probe from mipid_spi_probe+0x1b4/0x230 > [ 0.392333] mipid_spi_probe from spi_probe+0x48/0x6c > [ 0.392547] spi_probe from really_probe+0xac/0x2f0 > [ 0.392730] really_probe from __driver_probe_device+0x80/0xe4 > [ 0.392883] __driver_probe_device from driver_probe_device+0x30/0xd8 > [ 0.393066] driver_probe_device from __driver_attach+0x70/0xf0 > [ 0.393249] __driver_attach from bus_for_each_dev+0x74/0xc0 > [ 0.393402] bus_for_each_dev from bus_add_driver+0x14c/0x1d8 > [ 0.393585] bus_add_driver from driver_register+0x74/0x108 > [ 0.393737] driver_register from do_one_initcall+0x4c/0x1cc > [ 0.393920] do_one_initcall from kernel_init_freeable+0x170/0x1f4 > [ 0.394134] kernel_init_freeable from kernel_init+0x10/0x108 > [ 0.394317] kernel_init from ret_from_fork+0x14/0x2c > [ 0.394470] Exception stack(0xc0c41fb0 to 0xc0c41ff8) > [ 0.394592] 1fa0: 00000000 00000000 00000000 00000000 > [ 0.394775] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 0.394958] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > [ 0.395080] ---[ end trace 0000000000000000 ]--- > [ 0.417907] omapfb omapfb: controller initialization failed (-19) > > A. > From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 85FEEC433F5 for ; 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[178.235.254.230]) by smtp.gmail.com with ESMTPSA id v21-20020a2e2f15000000b002456e6cdab2sm1666413ljv.93.2022.03.19.17.15.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Mar 2022 17:15:24 -0700 (PDT) From: Janusz Krzysztofik To: Tony Lindgren , Aaro Koskinen Cc: Paul Walmsley , Alan Stern , Greg Kroah-Hartman , Helge Deller , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org, Arnd Bergmann Subject: Re: [RFC RFT PATCH 0/4] ARM: OMAP1: clock: Convert to CCF Date: Sun, 20 Mar 2022 01:15:22 +0100 Message-ID: <3093204.5fSG56mABF@dell> In-Reply-To: <20220319212119.GG1986@darkstar.musicnaut.iki.fi> References: <20220310233307.99220-1-jmkrzyszt@gmail.com> <20220319184952.GF1986@darkstar.musicnaut.iki.fi> <20220319212119.GG1986@darkstar.musicnaut.iki.fi> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220319_171528_856292_6C8D70CF X-CRM114-Status: GOOD ( 21.78 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Aaro, On Saturday, 19 March 2022 22:21:19 CET Aaro Koskinen wrote: > Hi, > > On Sat, Mar 19, 2022 at 08:49:55PM +0200, Aaro Koskinen wrote: > > On Sat, Mar 12, 2022 at 10:14:31AM +0200, Tony Lindgren wrote: > > > * Janusz Krzysztofik [220310 23:32]: > > > > The main motivation behind this series is planned resurection of OMAP1 > > > > camera driver. Since OMAP1 clock internals have never been visible to > > > > drivers, that driver used to use v4l2-clk to expose a pixel clock for a > > > > sensor. The v4l2-clk code has been recently depreciated and removed from > > > > the media subtree, hence the need for an alternative solution. > > > > > > Nice :) This will also help Arnd with building multi-v5 kernels. > > > > This will need more testing still... The patch 4 is breaking at least 770 > > (the display/fb doesn't work anymore). > > Patches 1-3 are OK on Nokia 770, OSK and Palm TE. > > Patch 4 breaks 770, but OSK and Palm TE are OK. > > Below is the problem with 770. As a quick hack, I tried replacing > all clk_enable/disable()s with prepare_enable/disable_unprepare()s in > drivers/video/fbdev/omap/hwa742.c and drivers/video/fbdev/omap/sossi.c > and that seems to help... > > [ 0.374389] omapfb: lph8923 rev 92 LCD detected, 16 data lines > [ 0.374816] omapfb: configured for panel lph8923 > [ 0.383789] omapfb: LCDC initialized > [ 0.384216] ------------[ cut here ]------------ > [ 0.384368] WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:1012 clk_core_enable+0x94/0xb0 > [ 0.384613] Enabling unprepared ck_sossi Yes, I've identified still a few drivers that need to be updated, I'll prepare v2 of PATCH 3/4 and resubmit. Thanks, Janusz > [ 0.384704] Modules linked in: > [ 0.384796] CPU: 0 PID: 1 Comm: swapper Not tainted 5.17.0-rc8-770-los_381206+-00072-gb2406fc1ddd4 #2 > [ 0.385009] Hardware name: Nokia 770 > [ 0.385101] unwind_backtrace from show_stack+0x10/0x14 > [ 0.385314] show_stack from __warn+0xac/0xe4 > [ 0.385528] __warn from warn_slowpath_fmt+0x90/0xc8 > [ 0.385711] warn_slowpath_fmt from clk_core_enable+0x94/0xb0 > [ 0.385894] clk_core_enable from clk_core_enable_lock+0x18/0x2c > [ 0.386077] clk_core_enable_lock from sossi_init+0xa0/0x258 > [ 0.386260] sossi_init from hwa742_init+0x90/0x538 > [ 0.386474] hwa742_init from omapfb_do_probe+0x200/0x68c > [ 0.386657] omapfb_do_probe from mipid_spi_probe+0x1b4/0x230 > [ 0.386840] mipid_spi_probe from spi_probe+0x48/0x6c > [ 0.387054] spi_probe from really_probe+0xac/0x2f0 > [ 0.387237] really_probe from __driver_probe_device+0x80/0xe4 > [ 0.387390] __driver_probe_device from driver_probe_device+0x30/0xd8 > [ 0.387573] driver_probe_device from __driver_attach+0x70/0xf0 > [ 0.387756] __driver_attach from bus_for_each_dev+0x74/0xc0 > [ 0.387908] bus_for_each_dev from bus_add_driver+0x14c/0x1d8 > [ 0.388061] bus_add_driver from driver_register+0x74/0x108 > [ 0.388244] driver_register from do_one_initcall+0x4c/0x1cc > [ 0.388427] do_one_initcall from kernel_init_freeable+0x170/0x1f4 > [ 0.388641] kernel_init_freeable from kernel_init+0x10/0x108 > [ 0.388824] kernel_init from ret_from_fork+0x14/0x2c > [ 0.388977] Exception stack(0xc0c41fb0 to 0xc0c41ff8) > [ 0.389099] 1fa0: 00000000 00000000 00000000 00000000 > [ 0.389282] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 0.389434] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > [ 0.389556] ---[ end trace 0000000000000000 ]--- > [ 0.389709] omapfb omapfb: invalid SoSSI sync pattern: 00000000, 00000000 > [ 0.389831] ------------[ cut here ]------------ > [ 0.389923] WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:953 clk_core_disable+0xb4/0xcc > [ 0.390136] ck_sossi already disabled > [ 0.390228] Modules linked in: > [ 0.390319] CPU: 0 PID: 1 Comm: swapper Tainted: G W 5.17.0-rc8-770-los_381206+-00072-gb2406fc1ddd4 #2 > [ 0.390502] Hardware name: Nokia 770 > [ 0.390594] unwind_backtrace from show_stack+0x10/0x14 > [ 0.390808] show_stack from __warn+0xac/0xe4 > [ 0.391021] __warn from warn_slowpath_fmt+0x90/0xc8 > [ 0.391204] warn_slowpath_fmt from clk_core_disable+0xb4/0xcc > [ 0.391387] clk_core_disable from clk_core_disable_lock+0x18/0x24 > [ 0.391540] clk_core_disable_lock from sossi_init+0x1bc/0x258 > [ 0.391754] sossi_init from hwa742_init+0x90/0x538 > [ 0.391937] hwa742_init from omapfb_do_probe+0x200/0x68c > [ 0.392120] omapfb_do_probe from mipid_spi_probe+0x1b4/0x230 > [ 0.392333] mipid_spi_probe from spi_probe+0x48/0x6c > [ 0.392547] spi_probe from really_probe+0xac/0x2f0 > [ 0.392730] really_probe from __driver_probe_device+0x80/0xe4 > [ 0.392883] __driver_probe_device from driver_probe_device+0x30/0xd8 > [ 0.393066] driver_probe_device from __driver_attach+0x70/0xf0 > [ 0.393249] __driver_attach from bus_for_each_dev+0x74/0xc0 > [ 0.393402] bus_for_each_dev from bus_add_driver+0x14c/0x1d8 > [ 0.393585] bus_add_driver from driver_register+0x74/0x108 > [ 0.393737] driver_register from do_one_initcall+0x4c/0x1cc > [ 0.393920] do_one_initcall from kernel_init_freeable+0x170/0x1f4 > [ 0.394134] kernel_init_freeable from kernel_init+0x10/0x108 > [ 0.394317] kernel_init from ret_from_fork+0x14/0x2c > [ 0.394470] Exception stack(0xc0c41fb0 to 0xc0c41ff8) > [ 0.394592] 1fa0: 00000000 00000000 00000000 00000000 > [ 0.394775] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 > [ 0.394958] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > [ 0.395080] ---[ end trace 0000000000000000 ]--- > [ 0.417907] omapfb omapfb: controller initialization failed (-19) > > A. > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel