From f8b6c2bc418a66b97bf391afa3af7a350b06b471 Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Tue, 13 Jul 2021 18:05:36 -0500 Subject: [PATCH] ASoC: Intel: sof_sdw_rt711*: keep codec device reference until remove Follow the example of Intel Atom drivers and keep a reference to the headset codec until the properties are removed. There is no guarantee that the module for the codec driver is loaded before the machine driver probe, the use of the deferred probe mechanism is required. Signed-off-by: Pierre-Louis Bossart --- sound/soc/intel/boards/sof_sdw_rt711.c | 44 +++++++++------------ sound/soc/intel/boards/sof_sdw_rt711_sdca.c | 43 +++++++++----------- 2 files changed, 38 insertions(+), 49 deletions(-) diff --git a/sound/soc/intel/boards/sof_sdw_rt711.c b/sound/soc/intel/boards/sof_sdw_rt711.c index 8a6a17fe676e74..510301e09b091d 100644 --- a/sound/soc/intel/boards/sof_sdw_rt711.c +++ b/sound/soc/intel/boards/sof_sdw_rt711.c @@ -21,25 +21,15 @@ * Note this MUST be called before snd_soc_register_card(), so that the props * are in place before the codec component driver's probe function parses them. */ -static int rt711_add_codec_device_props(const char *sdw_dev_name) +static int rt711_add_codec_device_props(struct device *sdw_dev) { struct property_entry props[MAX_NO_PROPS] = {}; - struct device *sdw_dev; - int ret; - - sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, sdw_dev_name); - if (!sdw_dev) - return -EPROBE_DEFER; - if (SOF_RT711_JDSRC(sof_sdw_quirk)) { - props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", - SOF_RT711_JDSRC(sof_sdw_quirk)); - } - - ret = device_add_properties(sdw_dev, props); - put_device(sdw_dev); + if (!SOF_RT711_JDSRC(sof_sdw_quirk)) + return 0; + props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_RT711_JDSRC(sof_sdw_quirk)); - return ret; + return device_add_properties(sdw_dev, props); } static const struct snd_soc_dapm_widget rt711_widgets[] = { @@ -137,15 +127,10 @@ static int rt711_rtd_init(struct snd_soc_pcm_runtime *rtd) int sof_sdw_rt711_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { - struct device *sdw_dev; - - sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, - dai_link->codecs[0].name); - if (!sdw_dev) - return -EINVAL; + struct mc_private *ctx = snd_soc_card_get_drvdata(card); - device_remove_properties(sdw_dev); - put_device(sdw_dev); + device_remove_properties(ctx->headset_codec_dev); + put_device(ctx->headset_codec_dev); return 0; } @@ -156,6 +141,8 @@ int sof_sdw_rt711_init(struct snd_soc_card *card, struct sof_sdw_codec_info *info, bool playback) { + struct mc_private *ctx = snd_soc_card_get_drvdata(card); + struct device *sdw_dev; int ret; /* @@ -165,9 +152,16 @@ int sof_sdw_rt711_init(struct snd_soc_card *card, if (!playback) return 0; - ret = rt711_add_codec_device_props(dai_links->codecs[0].name); - if (ret < 0) + sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name); + if (!sdw_dev) + return -EPROBE_DEFER; + + ret = rt711_add_codec_device_props(sdw_dev); + if (ret < 0) { + put_device(sdw_dev); return ret; + } + ctx->headset_codec_dev = sdw_dev; dai_links->init = rt711_rtd_init; diff --git a/sound/soc/intel/boards/sof_sdw_rt711_sdca.c b/sound/soc/intel/boards/sof_sdw_rt711_sdca.c index 1ae66f266c6c81..94af40e2beb0b7 100644 --- a/sound/soc/intel/boards/sof_sdw_rt711_sdca.c +++ b/sound/soc/intel/boards/sof_sdw_rt711_sdca.c @@ -21,25 +21,16 @@ * Note this MUST be called before snd_soc_register_card(), so that the props * are in place before the codec component driver's probe function parses them. */ -static int rt711_sdca_add_codec_device_props(const char *sdw_dev_name) +static int rt711_sdca_add_codec_device_props(struct device *sdw_dev) { struct property_entry props[MAX_NO_PROPS] = {}; - struct device *sdw_dev; - int ret; - - sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, sdw_dev_name); - if (!sdw_dev) - return -EPROBE_DEFER; - if (SOF_RT711_JDSRC(sof_sdw_quirk)) { - props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", - SOF_RT711_JDSRC(sof_sdw_quirk)); - } + if (!SOF_RT711_JDSRC(sof_sdw_quirk)) + return 0; - ret = device_add_properties(sdw_dev, props); - put_device(sdw_dev); + props[0] = PROPERTY_ENTRY_U32("realtek,jd-src", SOF_RT711_JDSRC(sof_sdw_quirk)); - return ret; + return device_add_properties(sdw_dev, props); } static const struct snd_soc_dapm_widget rt711_sdca_widgets[] = { @@ -137,15 +128,10 @@ static int rt711_sdca_rtd_init(struct snd_soc_pcm_runtime *rtd) int sof_sdw_rt711_sdca_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { - struct device *sdw_dev; - - sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, - dai_link->codecs[0].name); - if (!sdw_dev) - return -EINVAL; + struct mc_private *ctx = snd_soc_card_get_drvdata(card); - device_remove_properties(sdw_dev); - put_device(sdw_dev); + device_remove_properties(ctx->headset_codec_dev); + put_device(ctx->headset_codec_dev); return 0; } @@ -156,6 +142,8 @@ int sof_sdw_rt711_sdca_init(struct snd_soc_card *card, struct sof_sdw_codec_info *info, bool playback) { + struct mc_private *ctx = snd_soc_card_get_drvdata(card); + struct device *sdw_dev; int ret; /* @@ -165,9 +153,16 @@ int sof_sdw_rt711_sdca_init(struct snd_soc_card *card, if (!playback) return 0; - ret = rt711_sdca_add_codec_device_props(dai_links->codecs[0].name); - if (ret < 0) + sdw_dev = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name); + if (!sdw_dev) + return -EPROBE_DEFER; + + ret = rt711_sdca_add_codec_device_props(sdw_dev); + if (ret < 0) { + put_device(sdw_dev); return ret; + } + ctx->headset_codec_dev = sdw_dev; dai_links->init = rt711_sdca_rtd_init;