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Date: Wed, 26 Jun 2024 09:49:55 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Nícolas F. R. A. Prado <nfraprado@...labora.com>,
Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
Matthias Brugger <matthias.bgg@...il.com>
Cc: kernel@...labora.com, linux-sound@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] ASoC: mediatek: Allow setting readable driver names
through kconfig
Il 25/06/24 22:23, Nícolas F. R. A. Prado ha scritto:
> Commit c8d18e440225 ("ASoC: core: clarify the driver name
> initialization") introduced an error message when driver names are
> automatically generated and result in truncated names.
>
> For example, this error message is printed on mt8195-cherry-tomato-rev2:
>
> mt8195_mt6359 mt8195-sound: ASoC: driver name too long 'sof-mt8195_r1019_5682' -> 'sof-mt8195_r101'
>
> Since that truncated driver name is already used by userspace (eg UCM),
> it can't be unconditionally updated.
>
> As suggested by Jaroslav, update the driver name but hide it behind a
> kernel config option, which Linux distributions can enable once the
> corresponding support in userspace audio configuration software lands.
> This ensures that audio doesn't regress, while still allowing the error
> to be fixed.
I can propose the following plan of action for such a rename:
1. Temporarily have both UCMs
2. Wait until distros update their packages
3. Change the name in kernel without extra config options
4. Remove the now deprecated UCMs
...that's requiring a bit of time, yes, but I think this is the best way to
ensure that no breakage happens in the meantime for any users.
Anyone disagreeing? Does anyone have any better idea?
Cheers,
Angelo
>
> Suggested-by: Jaroslav Kysela <perex@...ex.cz>
> Link: https://lore.kernel.org/all/8d0ccf4a-a6d9-f914-70a9-c2ad55af3a04@perex.cz
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
> ---
> sound/soc/mediatek/Kconfig | 10 ++++++++++
> sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c | 3 +++
> sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c | 3 +++
> sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c | 13 ++++++++++++-
> sound/soc/mediatek/mt8186/mt8186-mt6366.c | 16 +++++++++++++++-
> sound/soc/mediatek/mt8188/mt8188-mt6359.c | 7 ++++++-
> sound/soc/mediatek/mt8195/mt8195-mt6359.c | 7 ++++++-
> 7 files changed, 55 insertions(+), 4 deletions(-)
>
> diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
> index 5a8476e1ecca..396d558bc75b 100644
> --- a/sound/soc/mediatek/Kconfig
> +++ b/sound/soc/mediatek/Kconfig
> @@ -281,6 +281,16 @@ config SND_SOC_MT8195
> Select Y if you have such device.
> If unsure select "N".
>
> +config SND_SOC_MTK_READABLE_DRIVER_NAME
> + bool "Readable driver name for MediaTek sound cards"
> + help
> + This explicitly sets the driver name for the MediaTek sound cards to
> + prevent it from potentially being truncated and harder to read. The
> + new names require support in the audio configuration userspace
> + utilities (like UCM), so only select this once they have been updated
> + to support the new names to ensure working audio.
> + If unsure select "N".
> +
> config SND_SOC_MT8195_MT6359
> tristate "ASoC Audio driver for MT8195 with MT6359 and I2S codecs"
> depends on I2C && GPIOLIB
> diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
> index 4ed06c269065..9155bb29c0a2 100644
> --- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
> +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c
> @@ -173,6 +173,9 @@ static struct snd_soc_codec_conf mt8173_rt5650_rt5514_codec_conf[] = {
>
> static struct snd_soc_card mt8173_rt5650_rt5514_card = {
> .name = "mtk-rt5650-rt5514",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = "mtk-rt5514",
> +#endif
> .owner = THIS_MODULE,
> .dai_link = mt8173_rt5650_rt5514_dais,
> .num_links = ARRAY_SIZE(mt8173_rt5650_rt5514_dais),
> diff --git a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
> index 763067c21153..212b36a0559f 100644
> --- a/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
> +++ b/sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c
> @@ -229,6 +229,9 @@ static struct snd_soc_codec_conf mt8173_rt5650_rt5676_codec_conf[] = {
>
> static struct snd_soc_card mt8173_rt5650_rt5676_card = {
> .name = "mtk-rt5650-rt5676",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = "mtk-rt5676",
> +#endif
> .owner = THIS_MODULE,
> .dai_link = mt8173_rt5650_rt5676_dais,
> .num_links = ARRAY_SIZE(mt8173_rt5650_rt5676_dais),
> diff --git a/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c b/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
> index f848e14b091a..2664e3d14fec 100644
> --- a/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
> +++ b/sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c
> @@ -19,6 +19,8 @@
> #include "../common/mtk-afe-platform-driver.h"
> #include "mt8183-afe-common.h"
>
> +#define DRIVER_NAME "mt8183_da7219"
> +
> #define DA7219_CODEC_DAI "da7219-hifi"
> #define DA7219_DEV_NAME "da7219.5-001a"
> #define RT1015_CODEC_DAI "rt1015-aif"
> @@ -649,6 +651,9 @@ static const struct snd_soc_dapm_route mt8183_da7219_max98357_dapm_routes[] = {
>
> static struct snd_soc_card mt8183_da7219_max98357_card = {
> .name = "mt8183_da7219_max98357",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .controls = mt8183_da7219_max98357_snd_controls,
> .num_controls = ARRAY_SIZE(mt8183_da7219_max98357_snd_controls),
> @@ -706,6 +711,9 @@ static const struct snd_soc_dapm_route mt8183_da7219_rt1015_dapm_routes[] = {
>
> static struct snd_soc_card mt8183_da7219_rt1015_card = {
> .name = "mt8183_da7219_rt1015",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .controls = mt8183_da7219_rt1015_snd_controls,
> .num_controls = ARRAY_SIZE(mt8183_da7219_rt1015_snd_controls),
> @@ -723,6 +731,9 @@ static struct snd_soc_card mt8183_da7219_rt1015_card = {
>
> static struct snd_soc_card mt8183_da7219_rt1015p_card = {
> .name = "mt8183_da7219_rt1015p",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .controls = mt8183_da7219_max98357_snd_controls,
> .num_controls = ARRAY_SIZE(mt8183_da7219_max98357_snd_controls),
> @@ -875,7 +886,7 @@ MODULE_DEVICE_TABLE(of, mt8183_da7219_max98357_dt_match);
>
> static struct platform_driver mt8183_da7219_max98357_driver = {
> .driver = {
> - .name = "mt8183_da7219",
> + .name = DRIVER_NAME,
> #ifdef CONFIG_OF
> .of_match_table = mt8183_da7219_max98357_dt_match,
> #endif
> diff --git a/sound/soc/mediatek/mt8186/mt8186-mt6366.c b/sound/soc/mediatek/mt8186/mt8186-mt6366.c
> index 771d53611c2a..29f17dfb8f1b 100644
> --- a/sound/soc/mediatek/mt8186/mt8186-mt6366.c
> +++ b/sound/soc/mediatek/mt8186/mt8186-mt6366.c
> @@ -31,6 +31,8 @@
> #include "mt8186-afe-gpio.h"
> #include "mt8186-mt6366-common.h"
>
> +#define DRIVER_NAME "mt8186_mt6366"
> +
> #define RT1019_CODEC_DAI "HiFi"
> #define RT1019_DEV0_NAME "rt1019p"
>
> @@ -1119,6 +1121,9 @@ mt8186_mt6366_rt1019_rt5682s_controls[] = {
>
> static struct snd_soc_card mt8186_mt6366_da7219_max98357_soc_card = {
> .name = "mt8186_da7219_max98357",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .dai_link = mt8186_mt6366_rt1019_rt5682s_dai_links,
> .num_links = ARRAY_SIZE(mt8186_mt6366_rt1019_rt5682s_dai_links),
> @@ -1134,6 +1139,9 @@ static struct snd_soc_card mt8186_mt6366_da7219_max98357_soc_card = {
>
> static struct snd_soc_card mt8186_mt6366_rt1019_rt5682s_soc_card = {
> .name = "mt8186_rt1019_rt5682s",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .dai_link = mt8186_mt6366_rt1019_rt5682s_dai_links,
> .num_links = ARRAY_SIZE(mt8186_mt6366_rt1019_rt5682s_dai_links),
> @@ -1149,6 +1157,9 @@ static struct snd_soc_card mt8186_mt6366_rt1019_rt5682s_soc_card = {
>
> static struct snd_soc_card mt8186_mt6366_rt5682s_max98360_soc_card = {
> .name = "mt8186_rt5682s_max98360",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .dai_link = mt8186_mt6366_rt1019_rt5682s_dai_links,
> .num_links = ARRAY_SIZE(mt8186_mt6366_rt1019_rt5682s_dai_links),
> @@ -1164,6 +1175,9 @@ static struct snd_soc_card mt8186_mt6366_rt5682s_max98360_soc_card = {
>
> static struct snd_soc_card mt8186_mt6366_rt5650_soc_card = {
> .name = "mt8186_rt5650",
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .dai_link = mt8186_mt6366_rt1019_rt5682s_dai_links,
> .num_links = ARRAY_SIZE(mt8186_mt6366_rt1019_rt5682s_dai_links),
> @@ -1380,7 +1394,7 @@ MODULE_DEVICE_TABLE(of, mt8186_mt6366_dt_match);
>
> static struct platform_driver mt8186_mt6366_driver = {
> .driver = {
> - .name = "mt8186_mt6366",
> + .name = DRIVER_NAME,
> #if IS_ENABLED(CONFIG_OF)
> .of_match_table = mt8186_mt6366_dt_match,
> #endif
> diff --git a/sound/soc/mediatek/mt8188/mt8188-mt6359.c b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
> index eba6f4c445ff..2640981a2463 100644
> --- a/sound/soc/mediatek/mt8188/mt8188-mt6359.c
> +++ b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
> @@ -23,6 +23,8 @@
> #include "../common/mtk-dsp-sof-common.h"
> #include "../common/mtk-soc-card.h"
>
> +#define DRIVER_NAME "mt8188_mt6359"
> +
> #define CKSYS_AUD_TOP_CFG 0x032c
> #define RG_TEST_ON BIT(0)
> #define RG_TEST_TYPE BIT(2)
> @@ -1240,6 +1242,9 @@ static void mt8188_fixup_controls(struct snd_soc_card *card)
> }
>
> static struct snd_soc_card mt8188_mt6359_soc_card = {
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .dai_link = mt8188_mt6359_dai_links,
> .num_links = ARRAY_SIZE(mt8188_mt6359_dai_links),
> @@ -1392,7 +1397,7 @@ MODULE_DEVICE_TABLE(of, mt8188_mt6359_dt_match);
>
> static struct platform_driver mt8188_mt6359_driver = {
> .driver = {
> - .name = "mt8188_mt6359",
> + .name = DRIVER_NAME,
> .of_match_table = mt8188_mt6359_dt_match,
> .pm = &snd_soc_pm_ops,
> },
> diff --git a/sound/soc/mediatek/mt8195/mt8195-mt6359.c b/sound/soc/mediatek/mt8195/mt8195-mt6359.c
> index ca8751190520..da406cbb40f6 100644
> --- a/sound/soc/mediatek/mt8195/mt8195-mt6359.c
> +++ b/sound/soc/mediatek/mt8195/mt8195-mt6359.c
> @@ -26,6 +26,8 @@
> #include "mt8195-afe-clk.h"
> #include "mt8195-afe-common.h"
>
> +#define DRIVER_NAME "mt8195_mt6359"
> +
> #define RT1011_SPEAKER_AMP_PRESENT BIT(0)
> #define RT1019_SPEAKER_AMP_PRESENT BIT(1)
> #define MAX98390_SPEAKER_AMP_PRESENT BIT(2)
> @@ -1231,6 +1233,9 @@ static struct snd_soc_codec_conf max98390_codec_conf[] = {
> };
>
> static struct snd_soc_card mt8195_mt6359_soc_card = {
> +#if IS_ENABLED(CONFIG_SND_SOC_MTK_READABLE_DRIVER_NAME)
> + .driver_name = DRIVER_NAME,
> +#endif
> .owner = THIS_MODULE,
> .dai_link = mt8195_mt6359_dai_links,
> .num_links = ARRAY_SIZE(mt8195_mt6359_dai_links),
> @@ -1530,7 +1535,7 @@ MODULE_DEVICE_TABLE(of, mt8195_mt6359_dt_match);
>
> static struct platform_driver mt8195_mt6359_driver = {
> .driver = {
> - .name = "mt8195_mt6359",
> + .name = DRIVER_NAME,
> .of_match_table = mt8195_mt6359_dt_match,
> .pm = &snd_soc_pm_ops,
> },
>
> ---
> base-commit: 0fc4bfab2cd45f9acb86c4f04b5191e114e901ed
> change-id: 20240625-mt8195-driver-name-too-long-095a030a2e86
>
> Best regards,
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