linux-kernel - Re: [PATCH] ASoC: Intel: sof_sdw: Initialize the sof_sdw_quirk with RT711_JD

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Message-ID: <c40282f6-cb8f-22ca-4a57-26fcbc39f423@linux.intel.com>
Date:   Fri, 15 Oct 2021 10:07:53 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Chris Chiu <chris.chiu@...onical.com>, cezary.rojewski@...el.com,
        liam.r.girdwood@...ux.intel.com, yang.jie@...ux.intel.com,
        broonie@...nel.org, tiwai@...e.com
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: Intel: sof_sdw: Initialize the sof_sdw_quirk with
 RT711_JD_NULL



On 10/15/21 8:34 AM, Chris Chiu wrote:
> The jd_src of RT711 which is initialized in rt711/rt711_sdca_init
> will be overridden by rt711/rt711_sdca_add_codec_device_props when
> the sof_sdw_quirk is not RT711_JD_NULL. It will force the JD mode
> to RT711_JD1 and cause confusion while debugging the JD mode of
> the boards without quirk. Initialize sof_sdw_quirk with RT711_JD_NULL
> to honor the jd_src value in rt711/rt711_sdca init.

Not able to follow what the "confusion while debugging the JD mode of
the boards without quirk" is. You need a DMI quirk or need to override
the default quirk with the kernel module parameter.

This also has the side effect of breaking ALL existing DMI quirks
implicitly using JD1...


> Signed-off-by: Chris Chiu <chris.chiu@...onical.com>
> ---
>  sound/soc/intel/boards/sof_sdw.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
> index 6b06248a9327..d05c0565e09c 100644
> --- a/sound/soc/intel/boards/sof_sdw.c
> +++ b/sound/soc/intel/boards/sof_sdw.c
> @@ -15,7 +15,7 @@
>  #include "sof_sdw_common.h"
>  #include "../../codecs/rt711.h"
>  
> -unsigned long sof_sdw_quirk = RT711_JD1;
> +unsigned long sof_sdw_quirk = RT711_JD_NULL;
>  static int quirk_override = -1;
>  module_param_named(quirk, quirk_override, int, 0444);
>  MODULE_PARM_DESC(quirk, "Board-specific quirk override");
>