linux-kernel - Re: [PATCH] ASoC: codecs: lpass-va-macro: set the default codec version for sm8250

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Message-ID: <F07BF288-66F4-497A-A581-5FE4B7B432BD@linaro.org>
Date: Fri, 16 Aug 2024 04:07:10 +0700
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: srinivas.kandagatla@...aro.org, broonie@...nel.org
CC: perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org,
 linux-arm-msm@...r.kernel.org, linux-sound@...r.kernel.org,
 linux-kernel@...r.kernel.org, amit.pundir@...aro.org,
 Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: Re: [PATCH] ASoC: codecs: lpass-va-macro: set the default codec version for sm8250

On August 15, 2024 11:49:03 PM GMT+07:00, srinivas.kandagatla@...aro.org wrote:
>From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>
>sm8250 and sc7280 have lpass codec version 1.0, as these are very old
>platforms, they do not have a reliable way to get the codec version
>from core_id registers.
>
>Add the version info into of_data, so that it does not need to use
>core_id registers to get version number.
>
>Fixes: 378918d59181 ("ASoC: codecs: lpass-macro: add helpers to get codec version")
>Fixes: dbacef05898d ("ASoC: codec: lpass-rx-macro: prepare driver to accomdate new codec versions")
>Fixes: 727de4fbc546 ("ASoC: codecs: lpass-wsa-macro: Correct support for newer v2.5 version")

Which commit introduced the issue? I think having just the first tag is enough.

LGTM otherwise.

>Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>---
> sound/soc/codecs/lpass-va-macro.c | 11 ++++++++++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
>diff --git a/sound/soc/codecs/lpass-va-macro.c b/sound/soc/codecs/lpass-va-macro.c
>index 8454193ed22a..e95d1f29ef18 100644
>--- a/sound/soc/codecs/lpass-va-macro.c
>+++ b/sound/soc/codecs/lpass-va-macro.c
>@@ -228,11 +228,13 @@ struct va_macro {
> struct va_macro_data {
> 	bool has_swr_master;
> 	bool has_npl_clk;
>+	int version;
> };
> 
> static const struct va_macro_data sm8250_va_data = {
> 	.has_swr_master = false,
> 	.has_npl_clk = false,
>+	.version = LPASS_CODEC_VERSION_1_0,
> };
> 
> static const struct va_macro_data sm8450_va_data = {
>@@ -1587,7 +1589,14 @@ static int va_macro_probe(struct platform_device *pdev)
> 			goto err_npl;
> 	}
> 
>-	va_macro_set_lpass_codec_version(va);
>+	/**
>+	 * old version of codecs do not have a reliable way to determine the
>+	 * version from registers, get them from soc specific data
>+	 */
>+	if (data->version)
>+		lpass_macro_set_codec_version(data->version);
>+	else /* read version from register */
>+		va_macro_set_lpass_codec_version(va);
> 
> 	if (va->has_swr_master) {
> 		/* Set default CLK div to 1 */


-- 
With best wishes
Dmitry