** Description changed:

- This requires the kernel to be based on 6.11 with following patches
- * linux
-   - sof driver for Intel ArrowLake platform
-   - Need the following patches from upstream from RPL
+ ========== linux ==========
+ 
+ [ Impact ]
+ Audio codec will not be loaded to get a functional audio device. 
+ 
+ 
+ [Fix]
+ Need the patches backport from Cirrus to fix the audio codec not found kernel 
error
  
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=b27404b2bbf951a11500525dea15681cc970226c
  
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=d2234596be2192d9c1ae34f8c7534531191bc433
  
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=1f3662838a05f1ab6af89a417f6f252d91d0806b
  
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=9307694f340e518cac0e007f39dd9ff0736e6144
  
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=5afc29ba44fdd1bcbad4e07246c395d946301580
  
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=af23d38caae5841bd7aa754a7e7205ab719f568d
  
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?id=e9db1b551774037ebe39dde4a658d89ba95e260b
  
- * firmware-sof
-   - sof-tplg/sof-rpl-cs42l43-l0.tplg and sof-arl.ri are required for RPL/ARL 
platform
+ [ Test ]
+ 
+ 1. Install the test kernel
+ 2. Install the alsa-ucm-conf with sof-tplg/sof-rpl-cs42l43-l0.tplg
+ 3. Make sure no kernel error in dmesg
+ ```
+ [    4.310588] BUG: kernel NULL pointer dereference, address: 0000000000000001
+ [    4.310598] #PF: supervisor read access in kernel mode
+ [    4.310601] #PF: error_code(0x0000) - not-present page
+ [    4.310605] PGD 0 P4D 0
+ [    4.310611] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
+ [    4.310617] CPU: 6 UID: 0 PID: 126 Comm: kworker/6:1 Tainted: G           
O       6.11.0-9008-oem #9008
+ [    4.310623] Tainted: [O]=OOT_MODULE
+ [    4.310625] Hardware name: Dell Inc. Dell Pro 14 Plus PB14250/, BIOS 
89.6.45 10/18/2024
+ [    4.310628] Workqueue: events sof_probe_work [snd_sof]
+ [    4.310671] RIP: 0010:snd_soc_acpi_sdw_link_slaves_found+0x50/0x2e0 
[snd_soc_acpi]
+ ```
+ 
+ ========== firmware-sof ==========
+ 
+ [ Impact ]
+ The audio input/output function won't work w/o correct tplg file
+ 
+ [Fix]
+ Need the upstream fix for the file sof-tplg/sof-rpl-cs42l43-l0.tplg 
+ 
+ 1. Install the test kernel
+ 2. Install the alsa-ucm-conf with sof-tplg/sof-rpl-cs42l43-l0.tplg
+ 3. Make sure audio input/output function is working by play/record sample 
audio wave file
+ 
+ [ Where problems could occur ]
+ The linux patches are only for the cirrus codec fix for particular Dell SKUs 
with cirrus soundwire device connected on specific sdw bus. The firmware-sof 
update the corresponding tplg file with particular combination. The regression 
risk should be low

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https://bugs.launchpad.net/bugs/2089885

Title:
  Support for Cirrus codec on Tarako RPL platform

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