[Letux-kernel] AESS for v4.18

H. Nikolaus Schaller hns at goldelico.com
Sat Aug 4 20:54:48 CEST 2018


Hi Marek,

> Am 03.08.2018 um 12:59 schrieb H. Nikolaus Schaller <hns at goldelico.com>:
> 
> It doesn't look as if we need (m)any of them. Here is a first result:
> 
> http://git.goldelico.com/?p=letux-kernel.git;a=shortlog;h=refs/heads/work/hns/aess

I have now added your DTS patches (omap5) to this branch and it compiles and does
something, but stumbles over some missing mcpsm dai link setup.

Here is the complete letux kernel with these patches:

http://git.goldelico.com/?p=letux-kernel.git;a=shortlog;h=refs/heads/work-aess

> 
> It compiles, but some code is commented out, because it calls functions that are not
> available in v4.18:
> 
> omap-aess-core.c and omap-aess-pcm.c:
> omap_pm_get_dev_context_loss_count()	- was not used elsewhere and recently removed
> 
> omap-aess-dai.c:
> snd_soc_dai_trigger()		- did never exist in any upstream kernel
> snd_soc_platform_trigger()	- has been removed in v4.11
> snd_interval_step()		- exists but is not exported
> 
> That is all! A total of 4 functions is missing. So almost all patches we had
> for general sound/soc/core are not needed.
> 
> Does anyone here have background information what these functions are good for and what replacements should be used?
> 
> @Marek: as far as I can see, none of them is related to firmware loading.
> So you could try if this code is better or different in loading firmware?

I think we should try to fix the omap_abe_probe and then continue to debug firmware loading based on this code.

BR,
Nikolaus

Filtered log (omap5evm):


[    4.664772] ehci-omap 4a064c00.ehci: irq 148, io mem 0x4a064c00
[    4.664929] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops [omapdss])
[    4.683834] omapdss_dss 58000000.dss: bound 58040000.encoder (ops hdmi5_component_ops [omapdss])
[    4.696934] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[    4.706466] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.18
[    4.729195] ------------[ cut here ]------------
[    4.729394] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    4.734385] WARNING: CPU: 1 PID: 1273 at drivers/base/devres.c:893 snd_soc_card_new_dai_links.constprop.3+0x5c/0x98 [snd_soc_omap_abe_twl6040]
[    4.757135] usb usb1: Product: EHCI Host Controller
[    4.773754] usb usb1: Manufacturer: Linux 4.18.0-rc7-letux+ ehci_hcd
[    4.795635] Modules linked in: snd_soc_omap_abe_twl6040(+) snd_soc_twl6040 leds_gpio omapdss cec encoder_tpd12s015 connector_hdmi omapdss_base ehci_omap(+) gpio_twl6040 dwc3_omap palmas_gpadc palmas_pwrbutton industrialio at24 snd_soc_omap_aess snd_soc_omap_mcpdm snd_soc_omap_mcbsp snd_soc_sdma
[    4.807060] usb usb1: SerialNumber: 4a064c00.ehci
[    4.868141] hub 1-0:1.0: USB hub found
[    4.869977] CPU: 1 PID: 1273 Comm: udevd Tainted: G        W         4.18.0-rc7-letux+ #2587
[    4.880791] hub 1-0:1.0: 3 ports detected
[    4.880920] Hardware name: Generic OMAP5 (Flattened Device Tree)
[    4.891406] [<c01112c8>] (unwind_backtrace) from [<c010c87c>] (show_stack+0x10/0x14)
[    4.899531] [<c010c87c>] (show_stack) from [<c078f514>] (dump_stack+0x7c/0x9c)
[    4.907107] [<c078f514>] (dump_stack) from [<c0132848>] (__warn+0xd8/0x108)
[    4.914404] [<c0132848>] (__warn) from [<c0132988>] (warn_slowpath_null+0x38/0x44)
[    4.922340] [<c0132988>] (warn_slowpath_null) from [<bf132524>] (snd_soc_card_new_dai_links.constprop.3+0x5c/0x98 [snd_soc_omap_abe_twl6040])
[    4.935655] [<bf132524>] (snd_soc_card_new_dai_links.constprop.3 [snd_soc_omap_abe_twl6040]) from [<bf1328c0>] (omap_abe_probe+0x360/0x5f4 [snd_soc_omap_abe_twl6040])
[    4.951235] [<bf1328c0>] (omap_abe_probe [snd_soc_omap_abe_twl6040]) from [<c04fe9b8>] (platform_drv_probe+0x48/0x98)
[    4.962352] [<c04fe9b8>] (platform_drv_probe) from [<c04fcd9c>] (driver_probe_device+0x180/0x310)
[    4.971643] [<c04fcd9c>] (driver_probe_device) from [<c04fcfbc>] (__driver_attach+0x90/0xc4)
[    4.980481] [<c04fcfbc>] (__driver_attach) from [<c04fb2bc>] (bus_for_each_dev+0x64/0xa0)
[    4.989047] [<c04fb2bc>] (bus_for_each_dev) from [<c04fc2dc>] (bus_add_driver+0xcc/0x1e0)
[    4.997613] [<c04fc2dc>] (bus_add_driver) from [<c04fdbec>] (driver_register+0xb0/0xf8)
[    5.005997] [<c04fdbec>] (driver_register) from [<bf138070>] (omap_abe_init+0x70/0x1000 [snd_soc_omap_abe_twl6040])
[    5.016931] [<bf138070>] (omap_abe_init [snd_soc_omap_abe_twl6040]) from [<c0102eb4>] (do_one_initcall+0xc0/0x268)
[    5.027774] [<c0102eb4>] (do_one_initcall) from [<c01aeb88>] (do_init_module+0x58/0x1d0)
[    5.036249] [<c01aeb88>] (do_init_module) from [<c01ad92c>] (load_module+0xe24/0xfd4)
[    5.044450] [<c01ad92c>] (load_module) from [<c01adce4>] (sys_finit_module+0x94/0xb4)
[    5.052648] [<c01adce4>] (sys_finit_module) from [<c0101000>] (ret_fast_syscall+0x0/0x54)
[    5.061211] Exception stack(0xecb63fa8 to 0xecb63ff0)
[    5.066498] 3fa0:                   b6dc37d4 00051f70 00000007 b6dc29f8 00000000 b6dc331c
[    5.075061] 3fc0: b6dc37d4 00051f70 18e7a300 0000017b 00020000 00037f78 00050048 00059460
[    5.083619] 3fe0: beb90ee0 beb90ed0 b6dbcc4b b6ec7a42
^[[c^[[c[    5.096845] ---[ end trace 308978971b15416e ]---
[    5.104638] omap-abe-twl6040 sound: ASoC: CPU DAI mcpdm-abe not registered
[    5.115645] omap-abe-twl6040 sound: card registration failed: -517


Log with aess.ko removed/disabled:

[    4.586613] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[    4.598830] omapdss_dss 58000000.dss: 58000000.dss supply vdda_video not found, using dummy regulator
[    4.625068] DSS: OMAP DSS rev 6.1
[    4.625171] ehci-omap 4a064c00.ehci: irq 148, io mem 0x4a064c00
[    4.630393] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops [omapdss])
[    4.644373] omapdss_dss 58000000.dss: bound 58040000.encoder (ops hdmi5_component_ops [omapdss])
[    4.668516] snd_soc_omap_abe_twl6040: Unknown symbol omap_aess_put_handle (err 0)
[    4.683001] snd_soc_omap_abe_twl6040: Unknown symbol omap_aess_set_dl1_gains (err 0)
[    4.693041] ehci-omap 4a064c00.ehci: USB 2.0 started, EHCI 1.00
[    4.703169] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.18
[    4.735871] snd_soc_omap_abe_twl6040: Unknown symbol omap_aess_pm_set_mode (err 0)
[    4.773419] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    4.780987] usb usb1: Product: EHCI Host Controller
[    4.786456] snd_soc_omap_abe_twl6040: Unknown symbol omap_aess_dc_set_hf_offset (err 0)
[    4.807910] usb usb1: Manufacturer: Linux 4.18.0-rc7-letux+ ehci_hcd
[    4.813026] snd_soc_omap_abe_twl6040: Unknown symbol omap_aess_load_firmware (err 0)
[    4.815674] usb usb1: SerialNumber: 4a064c00.ehci
[    4.829054] hub 1-0:1.0: USB hub found
[    4.834258] hub 1-0:1.0: 3 ports detected
[    4.843567] snd_soc_omap_abe_twl6040: Unknown symbol omap_aess_get_handle (err 0)
[    4.852508] snd_soc_omap_abe_twl6040: Unknown symbol omap_aess_dc_set_hs_offset (err 0)
[    4.887462] dwc3 4a030000.dwc3: Failed to get clk 'ref': -2
[    4.895466] dwc3 4a030000.dwc3: changing max_speed on rev 5533202a




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