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Tue, 26 May 2020 06:20:20 -0400 (EDT) Date: Tue, 26 May 2020 12:20:18 +0200 From: Maxime Ripard To: Jian-Hong Pan Cc: Nicolas Saenz Julienne , Eric Anholt , dri-devel , linux-rpi-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, Linux Kernel , devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-i2c@vger.kernel.org, Linux Upstreaming Team Subject: Re: [PATCH v2 00/91] drm/vc4: Support BCM2711 Display Pipelin Message-ID: <20200526102018.kznh6aglpkqlp6en@gilmour.lan> References: <20200427072342.5499-1-jian-hong@endlessm.com> <20200428162152.ztsqp7nxqbwqrm6r@gilmour.lan> <20200507172158.cybtakpo6cxv6wcs@gilmour.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Mon, May 11, 2020 at 11:12:05AM +0800, Jian-Hong Pan wrote: > Jian-Hong Pan =E6=96=BC 2020=E5=B9=B45=E6=9C=888= =E6=97=A5 =E9=80=B1=E4=BA=94 =E4=B8=8B=E5=8D=882:20=E5=AF=AB=E9=81=93=EF=BC= =9A > > > > Maxime Ripard =E6=96=BC 2020=E5=B9=B45=E6=9C=888=E6= =97=A5 =E9=80=B1=E4=BA=94 =E4=B8=8A=E5=8D=881:22=E5=AF=AB=E9=81=93=EF=BC=9A > > > > > > On Mon, May 04, 2020 at 02:35:08PM +0800, Jian-Hong Pan wrote: > > > > Maxime Ripard =E6=96=BC 2020=E5=B9=B44=E6=9C=88= 29=E6=97=A5 =E9=80=B1=E4=B8=89 =E4=B8=8A=E5=8D=8812:21=E5=AF=AB=E9=81=93=EF= =BC=9A > > > > > > > > > > Hi, > > > > > > > > > > On Mon, Apr 27, 2020 at 03:23:42PM +0800, Jian-Hong Pan wrote: > > > > > > Hi Maxime, > > > > > > > > > > > > Thanks for your V2 patch series! I'm testing it. > > > > > > > > > > > > This patch series is applied upon mainline kernel 5.7-rc2 clean= ly and built. > > > > > > System can boot into console text mode, but no graphic UI. > > > > > > > > > > > > Get the error in vc5_hdmi_phy_init(), and full dmesg is at [1]: > > > > > > > > > > > > [ 5.587543] vc4_hdmi fef00700.hdmi: Unknown register ID 46 > > > > > > [ 5.587700] debugfs: Directory 'fef00700.hdmi' with parent '= vc4-hdmi' already present! > > > > > > [ 5.588070] vc4_hdmi fef00700.hdmi: vc4-hdmi-hifi <-> fef007= 00.hdmi mapping ok > > > > > > [ 5.588076] vc4_hdmi fef00700.hdmi: ASoC: no DMI vendor name! > > > > > > [ 5.588263] vc4-drm gpu: bound fef00700.hdmi (ops vc4_hdmi_o= ps) > > > > > > [ 5.588299] vc4_hdmi fef05700.hdmi: Unknown register ID 46 > > > > > > [ 5.588373] debugfs: Directory 'vc4-hdmi' with parent 'asoc'= already present! > > > > > > [ 5.588673] vc4_hdmi fef05700.hdmi: vc4-hdmi-hifi <-> fef057= 00.hdmi mapping ok > > > > > > [ 5.588677] vc4_hdmi fef05700.hdmi: ASoC: no DMI vendor name! > > > > > > [ 5.588809] vc4-drm gpu: bound fef05700.hdmi (ops vc4_hdmi_o= ps) > > > > > > [ 5.588854] vc4-drm gpu: bound fe806000.vec (ops vc4_vec_ops) > > > > > > [ 5.588897] vc4-drm gpu: bound fe004000.txp (ops vc4_txp_ops) > > > > > > [ 5.588934] vc4-drm gpu: bound fe400000.hvs (ops vc4_hvs_ops) > > > > > > [ 5.588990] vc4-drm gpu: bound fe206000.pixelvalve (ops vc4_= crtc_ops) > > > > > > [ 5.589030] vc4-drm gpu: bound fe207000.pixelvalve (ops vc4_= crtc_ops) > > > > > > [ 5.589074] vc4-drm gpu: bound fe20a000.pixelvalve (ops vc4_= crtc_ops) > > > > > > [ 5.589106] vc4-drm gpu: bound fe216000.pixelvalve (ops vc4_= crtc_ops) > > > > > > [ 5.589145] vc4-drm gpu: bound fec12000.pixelvalve (ops vc4_= crtc_ops) > > > > > > [ 5.589294] checking generic (3e513000 6d8c00) vs hw (0 ffff= ffffffffffff) > > > > > > [ 5.589297] fb0: switching to vc4drmfb from simple > > > > > > [ 5.589433] Console: switching to colour dummy device 80x25 > > > > > > [ 5.589481] [drm] Supports vblank timestamp caching Rev 2 (2= 1.10.2013). > > > > > > [ 5.589816] [drm] Initialized vc4 0.0.0 20140616 for gpu on = minor 0 > > > > > > [ 5.601079] ------------[ cut here ]------------ > > > > > > [ 5.601095] WARNING: CPU: 2 PID: 127 at drivers/gpu/drm/vc4/= vc4_hdmi_phy.c:413 vc5_hdmi_phy_init+0x7ac/0x2078 > > > > > > [ 5.601097] Modules linked in: > > > > > > [ 5.601103] CPU: 2 PID: 127 Comm: kworker/2:1 Not tainted 5.= 7.0-rc2-00091-ga181df59a930 #7 > > > > > > [ 5.601105] Hardware name: Raspberry Pi 4 Model B (DT) > > > > > > [ 5.601112] Workqueue: events deferred_probe_work_func > > > > > > [ 5.601116] pstate: 20000005 (nzCv daif -PAN -UAO) > > > > > > [ 5.601119] pc : vc5_hdmi_phy_init+0x7ac/0x2078 > > > > > > [ 5.601123] lr : vc4_hdmi_encoder_enable+0x1b8/0x1ac0 > > > > > > [ 5.601124] sp : ffff80001217b410 > > > > > > [ 5.601126] x29: ffff80001217b410 x28: ffff0000ec6370f0 > > > > > > [ 5.601129] x27: ffff0000f650d400 x26: 000000008a500000 > > > > > > [ 5.601132] x25: ffff8000113b4ac0 x24: 0000000000002060 > > > > > > [ 5.601135] x23: 000000000a500000 x22: 0000000000000300 > > > > > > [ 5.601137] x21: 0000000008d9ee20 x20: ffff0000ec535080 > > > > > > [ 5.601140] x19: 000000010989e7c0 x18: 0000000000000000 > > > > > > [ 5.601142] x17: 0000000000000001 x16: 0000000000005207 > > > > > > [ 5.601145] x15: 00004932ad293c92 x14: 0000000000000137 > > > > > > [ 5.601147] x13: ffff800010015000 x12: 0000000000000001 > > > > > > [ 5.601150] x11: 0000000000000001 x10: 0000000000000000 > > > > > > [ 5.601152] x9 : 0000000000000000 x8 : ffff800010015038 > > > > > > [ 5.601154] x7 : 0000000000000001 x6 : ffff80001217b368 > > > > > > [ 5.601157] x5 : 0000000000000000 x4 : 000000000000004c > > > > > > [ 5.601159] x3 : 0000000000000000 x2 : ffff8000113b4ac0 > > > > > > [ 5.601162] x1 : ffff8000120c5f44 x0 : 00000000dc8984ff > > > > > > [ 5.601164] Call trace: > > > > > > [ 5.601169] vc5_hdmi_phy_init+0x7ac/0x2078 > > > > > > [ 5.601172] vc4_hdmi_encoder_enable+0x1b8/0x1ac0 > > > > > > [ 5.601176] drm_atomic_helper_commit_modeset_enables+0x224/= 0x248 > > > > > > [ 5.601179] vc4_atomic_complete_commit+0x400/0x558 > > > > > > [ 5.601182] vc4_atomic_commit+0x1e0/0x200 > > > > > > [ 5.601185] drm_atomic_commit+0x4c/0x60 > > > > > > [ 5.601190] drm_client_modeset_commit_atomic.isra.0+0x17c/0= x238 > > > > > > [ 5.601192] drm_client_modeset_commit_locked+0x5c/0x198 > > > > > > [ 5.601195] drm_client_modeset_commit+0x30/0x58 > > > > > > [ 5.601201] drm_fb_helper_restore_fbdev_mode_unlocked+0x78/= 0xe0 > > > > > > [ 5.601204] drm_fb_helper_set_par+0x30/0x68 > > > > > > [ 5.601208] fbcon_init+0x3d4/0x598 > > > > > > [ 5.601212] visual_init+0xb0/0x108 > > > > > > [ 5.601214] do_bind_con_driver+0x1d0/0x3a8 > > > > > > [ 5.601217] do_take_over_console+0x144/0x208 > > > > > > [ 5.601219] do_fbcon_takeover+0x68/0xd8 > > > > > > [ 5.601222] fbcon_fb_registered+0x100/0x118 > > > > > > [ 5.601226] register_framebuffer+0x1f4/0x338 > > > > > > [ 5.601229] __drm_fb_helper_initial_config_and_unlock+0x2f8= /0x4a0 > > > > > > [ 5.601232] drm_fbdev_client_hotplug+0xd4/0x1b0 > > > > > > [ 5.601235] drm_fbdev_generic_setup+0xb0/0x130 > > > > > > [ 5.601238] vc4_drm_bind+0x184/0x1a0 > > > > > > [ 5.601241] try_to_bring_up_master+0x168/0x1c8 > > > > > > [ 5.601244] __component_add+0xa4/0x170 > > > > > > [ 5.601246] component_add+0x14/0x20 > > > > > > [ 5.601248] vc4_vec_dev_probe+0x20/0x30 > > > > > > [ 5.601252] platform_drv_probe+0x54/0xa8 > > > > > > [ 5.601254] really_probe+0xd8/0x320 > > > > > > [ 5.601256] driver_probe_device+0x58/0xf0 > > > > > > [ 5.601258] __device_attach_driver+0x84/0xc8 > > > > > > [ 5.601263] bus_for_each_drv+0x78/0xc8 > > > > > > [ 5.601265] __device_attach+0xe4/0x140 > > > > > > [ 5.601267] device_initial_probe+0x14/0x20 > > > > > > [ 5.601269] bus_probe_device+0x9c/0xa8 > > > > > > [ 5.601271] deferred_probe_work_func+0x74/0xb0 > > > > > > [ 5.601276] process_one_work+0x1bc/0x338 > > > > > > [ 5.601279] worker_thread+0x1f8/0x428 > > > > > > [ 5.601282] kthread+0x138/0x158 > > > > > > [ 5.601286] ret_from_fork+0x10/0x1c > > > > > > [ 5.601288] ---[ end trace cfba0996218c3f3d ]--- > > > > > > > > > > Thanks for testing! > > > > > > > > > > Do you have a bit more details regarding your setup? Was it conne= cted to an > > > > > external display? > > > > > > > > Yes, the HDMI cable is connected to HDMI0 port on RPi 4. > > > > > > > > > If so, do you know the resolution it was trying to setup? > > > > > > > > According to the log, I think it is 1920x1080: > > > > Apr 27 15:37:25 endless gdm-Xorg-:0[1960]: (II) modeset(0): Output > > > > HDMI-1 connected > > > > Apr 27 15:37:25 endless gdm-Xorg-:0[1960]: (II) modeset(0): Output > > > > HDMI-2 disconnected > > > > Apr 27 15:37:25 endless gdm-Xorg-:0[1960]: (II) modeset(0): Output > > > > Composite-1 disconnected > > > > Apr 27 15:37:25 endless gdm-Xorg-:0[1960]: (II) modeset(0): Using > > > > exact sizes for initial modes > > > > Apr 27 15:37:25 endless gdm-Xorg-:0[1960]: (II) modeset(0): Output > > > > HDMI-1 using initial mode 1920x1080 +0+0 > > > > > > > > https://gist.github.com/starnight/45e1468bfa0426a54d2fb4a9269cfb94 > > > > > > It looks to be fairly standard then, and I'm testing on the same reso= lution so > > > it should be alright. > > > > > > Given from your log, it looks like you're running as arm64 though, wh= ile I stuck > > > with arm32, so it could be the explanation. > > > > Yes, I build it as arm64. > > > > > Can you share your config.txt and .config so that I can try to reprod= uce it > > > here? > > > > Here is the config > > https://gist.github.com/starnight/320b757441b6769c36160704b401c98b >=20 > Here is the only one line in config.txt: > enable_uart=3D1 >=20 > Actually, we make the Raspberry Pi's firmware bring up U-Boot, then > U-Boot boots kernel. I gave it a try with U-Boot with my latest work and couldn't reproduce it, = so it seems that I fixed it along the way Maxime