Re: [PATCH v6 3/3] drm/rockchip: Add basic RK3588 HDMI output support

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Am Freitag, 6. September 2024, 03:17:42 CEST schrieb Cristian Ciocaltea:
> The RK3588 SoC family integrates the newer Synopsys DesignWare HDMI 2.1
> Quad-Pixel (QP) TX controller IP and a HDMI/eDP TX Combo PHY based on a
> Samsung IP block.
> 
> Add just the basic support for now, i.e. RGB output up to 4K@60Hz,
> without audio, CEC or any of the HDMI 2.1 specific features.
> 
> Co-developed-by: Algea Cao <algea.cao@xxxxxxxxxxxxxx>
> Signed-off-by: Algea Cao <algea.cao@xxxxxxxxxxxxxx>
> Tested-by: Heiko Stuebner <heiko@xxxxxxxxx>
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>

I had switched from the v3 to this v6 in my playground-kernel today,
with v3 I've never seen those, but now with v6 I have gotten multiple
times:

[  805.730608] Internal error: synchronous external abort: 0000000096000010 [#1] PREEMPT SMP
[  805.739764] Modules linked in: snd_soc_simple_card crct10dif_ce snd_soc_simple_card_utils panthor drm_gpuvm drm_exec fuse
[  805.752031] CPU: 3 UID: 0 PID: 775 Comm: Xorg Not tainted 6.11.0-rc7-00099-g459302f1f908-dirty #934
[  805.762143] Hardware name: Theobroma Systems RK3588-Q7 SoM on Haikou devkit (DT)
[  805.770407] pstate: 204000c9 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  805.778186] pc : regmap_mmio_read32le+0x8/0x20
[  805.783155] lr : regmap_mmio_read+0x44/0x70
[  805.787828] sp : ffff80008293b830
[  805.791516] x29: ffff80008293b830 x28: ffff80008293bce8 x27: ffff0001f20ab080
[  805.799495] x26: ffff800081139500 x25: 0000000000000000 x24: 0000000000000010
[  805.807472] x23: 0000000000000000 x22: ffff0001f5a4b400 x21: ffff80008293b8c4
[  805.815450] x20: 0000000000000968 x19: ffff0001f5a27a80 x18: 0000000000000070
[  805.823428] x17: 0002441400000005 x16: 000004650441043c x15: 0438000008980804
[  805.831406] x14: 07d8089807800780 x13: 0438000008980804 x12: ffff800081133630
[  805.839384] x11: 0002441400000005 x10: 000004650441043c x9 : ffff800081a59000
[  805.847361] x8 : 07d8089807800780 x7 : 0000000000000000 x6 : ffff0001f5b453c0
[  805.855339] x5 : ffff800080750dc0 x4 : 0000000000000968 x3 : 0000000000000968
[  805.863316] x2 : ffff800080751520 x1 : 0000000000000968 x0 : ffff800083b20968
[  805.871294] Call trace:
[  805.874012]  regmap_mmio_read32le+0x8/0x20
[  805.878588]  _regmap_bus_reg_read+0x6c/0xac
[  805.883262]  _regmap_read+0x60/0xd8
[  805.887159]  _regmap_update_bits+0xf4/0x140
[  805.891832]  regmap_update_bits_base+0x64/0xa0
[  805.896797]  dw_hdmi_qp_bridge_atomic_enable+0x134/0x220
[  805.902734]  drm_atomic_bridge_chain_enable+0x54/0xc8
[  805.908380]  drm_atomic_helper_commit_modeset_enables+0x194/0x280
[  805.915190]  drm_atomic_helper_commit_tail_rpm+0x50/0xa0
[  805.921125]  commit_tail+0xa0/0x1a0
[  805.925021]  drm_atomic_helper_commit+0x17c/0x1b0
[  805.930276]  drm_atomic_commit+0xb8/0x100
[  805.934754]  drm_atomic_connector_commit_dpms+0xe0/0x110
[  805.940690]  drm_mode_obj_set_property_ioctl+0x1c0/0x420
[  805.946626]  drm_connector_property_set_ioctl+0x3c/0x68
[  805.952465]  drm_ioctl_kernel+0xc0/0x130
[  805.956846]  drm_ioctl+0x214/0x4a0
[  805.960643]  __arm64_sys_ioctl+0xac/0xf8
[  805.965025]  invoke_syscall+0x48/0x104
[  805.969214]  el0_svc_common.constprop.0+0x40/0xe0
[  805.974470]  do_el0_svc+0x1c/0x28
[  805.978171]  el0_svc+0x34/0xe0
[  805.981582]  el0t_64_sync_handler+0x120/0x12c
[  805.986449]  el0t_64_sync+0x190/0x194
[  805.990540] Code: d503201f d503201f f9400000 8b214000 (b9400000)

I guess that might be some clocking issue?





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