linux-kernel - Re: [PATCH] Revert "soundwire: qcom: Add set_channel

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Message-Id: <175259126744.517280.1761573363863267576.b4-ty@kernel.org>
Date: Tue, 15 Jul 2025 20:24:27 +0530
From: Vinod Koul <vkoul@...nel.org>
To: Mark Brown <broonie@...nel.org>, 
 Mohammad Rafi Shaik <quic_mohs@...cinc.com>, 
 Srinivas Kandagatla <srini@...nel.org>, 
 Bard Liao <yung-chuan.liao@...ux.intel.com>, 
 Pierre-Louis Bossart <pierre-louis.bossart@...ux.dev>, 
 Sanyog Kale <sanyog.r.kale@...el.com>, 
 Dan Carpenter <dan.carpenter@...aro.org>, 
 Yongqin Liu <yongqin.liu@...aro.org>, Jie Gan <jie.gan@....qualcomm.com>, 
 Amit Pundir <amit.pundir@...aro.org>
Cc: linux-arm-msm <linux-arm-msm@...r.kernel.org>, 
 linux-sound <linux-sound@...r.kernel.org>, 
 lkml <linux-kernel@...r.kernel.org>, stable@...r.kernel.org
Subject: Re: [PATCH] Revert "soundwire: qcom: Add set_channel_map api
 support"


On Wed, 09 Jul 2025 23:19:49 +0530, Amit Pundir wrote:
> This reverts commit 7796c97df6b1b2206681a07f3c80f6023a6593d5.
> 
> This patch broke Dragonboard 845c (sdm845). I see:
> 
>     Unexpected kernel BRK exception at EL1
>     Internal error: BRK handler: 00000000f20003e8 [#1]  SMP
>     pc : qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom]
>     lr : snd_soc_dai_set_channel_map+0x34/0x78
>     Call trace:
>      qcom_swrm_set_channel_map+0x7c/0x80 [soundwire_qcom] (P)
>      sdm845_dai_init+0x18c/0x2e0 [snd_soc_sdm845]
>      snd_soc_link_init+0x28/0x6c
>      snd_soc_bind_card+0x5f4/0xb0c
>      snd_soc_register_card+0x148/0x1a4
>      devm_snd_soc_register_card+0x50/0xb0
>      sdm845_snd_platform_probe+0x124/0x148 [snd_soc_sdm845]
>      platform_probe+0x6c/0xd0
>      really_probe+0xc0/0x2a4
>      __driver_probe_device+0x7c/0x130
>      driver_probe_device+0x40/0x118
>      __device_attach_driver+0xc4/0x108
>      bus_for_each_drv+0x8c/0xf0
>      __device_attach+0xa4/0x198
>      device_initial_probe+0x18/0x28
>      bus_probe_device+0xb8/0xbc
>      deferred_probe_work_func+0xac/0xfc
>      process_one_work+0x244/0x658
>      worker_thread+0x1b4/0x360
>      kthread+0x148/0x228
>      ret_from_fork+0x10/0x20
>     Kernel panic - not syncing: BRK handler: Fatal exception
> 
> [...]

Applied, thanks!

[1/1] Revert "soundwire: qcom: Add set_channel_map api support"
      commit: 834bce6a715ae9a9c4dce7892454a19adf22b013

Best regards,
-- 
~Vinod