From d7e261b7ad1bc96a2ee249c6694691244c099acf Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:14 +0700 Subject: [PATCH 01/11] ASoC: fsl_asrc: Use guard() for spin locks Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Link: https://patch.msgid.link/20260615093824.115751-2-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_asrc.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c index 5fda9b647c70..0b28bcfa47fe 100644 --- a/sound/soc/fsl/fsl_asrc.c +++ b/sound/soc/fsl/fsl_asrc.c @@ -222,10 +222,9 @@ static int fsl_asrc_request_pair(int channels, struct fsl_asrc_pair *pair) enum asrc_pair_index index = ASRC_INVALID_PAIR; struct fsl_asrc *asrc = pair->asrc; struct device *dev = &asrc->pdev->dev; - unsigned long lock_flags; int i, ret = 0; - spin_lock_irqsave(&asrc->lock, lock_flags); + guard(spinlock_irqsave)(&asrc->lock); for (i = ASRC_PAIR_A; i < ASRC_PAIR_MAX_NUM; i++) { if (asrc->pair[i] != NULL) @@ -250,8 +249,6 @@ static int fsl_asrc_request_pair(int channels, struct fsl_asrc_pair *pair) pair->index = index; } - spin_unlock_irqrestore(&asrc->lock, lock_flags); - return ret; } @@ -265,19 +262,16 @@ static void fsl_asrc_release_pair(struct fsl_asrc_pair *pair) { struct fsl_asrc *asrc = pair->asrc; enum asrc_pair_index index = pair->index; - unsigned long lock_flags; /* Make sure the pair is disabled */ regmap_update_bits(asrc->regmap, REG_ASRCTR, ASRCTR_ASRCEi_MASK(index), 0); - spin_lock_irqsave(&asrc->lock, lock_flags); + guard(spinlock_irqsave)(&asrc->lock); asrc->channel_avail += pair->channels; asrc->pair[index] = NULL; pair->error = 0; - - spin_unlock_irqrestore(&asrc->lock, lock_flags); } /** From 58712476dee21cc3d3cb3b0b85a8ca3a86d480fe Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:15 +0700 Subject: [PATCH 02/11] ASoC: fsl_audmix: Use guard() for spin locks Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-3-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_audmix.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/sound/soc/fsl/fsl_audmix.c b/sound/soc/fsl/fsl_audmix.c index f819f33ec46b..a27370862ee8 100644 --- a/sound/soc/fsl/fsl_audmix.c +++ b/sound/soc/fsl/fsl_audmix.c @@ -286,7 +286,6 @@ static int fsl_audmix_dai_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { struct fsl_audmix *priv = snd_soc_dai_get_drvdata(dai); - unsigned long lock_flags; /* Capture stream shall not be handled */ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) @@ -296,16 +295,14 @@ static int fsl_audmix_dai_trigger(struct snd_pcm_substream *substream, int cmd, case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - spin_lock_irqsave(&priv->lock, lock_flags); - priv->tdms |= BIT(dai->driver->id); - spin_unlock_irqrestore(&priv->lock, lock_flags); + scoped_guard(spinlock_irqsave, &priv->lock) + priv->tdms |= BIT(dai->driver->id); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - spin_lock_irqsave(&priv->lock, lock_flags); - priv->tdms &= ~BIT(dai->driver->id); - spin_unlock_irqrestore(&priv->lock, lock_flags); + scoped_guard(spinlock_irqsave, &priv->lock) + priv->tdms &= ~BIT(dai->driver->id); break; default: return -EINVAL; From 48d84310be60578d4413139661b433b1d33aca1d Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:16 +0700 Subject: [PATCH 03/11] ASoC: fsl_easrc: Use guard() for spin locks Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-4-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_easrc.c | 36 ++++++++++-------------------------- 1 file changed, 10 insertions(+), 26 deletions(-) diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c index 114a6c0b6b73..edfd943197a0 100644 --- a/sound/soc/fsl/fsl_easrc.c +++ b/sound/soc/fsl/fsl_easrc.c @@ -1025,7 +1025,6 @@ static int fsl_easrc_config_context(struct fsl_asrc *easrc, unsigned int ctx_id) struct fsl_easrc_ctx_priv *ctx_priv; struct fsl_asrc_pair *ctx; struct device *dev; - unsigned long lock_flags; int ret; if (!easrc) @@ -1053,9 +1052,8 @@ static int fsl_easrc_config_context(struct fsl_asrc *easrc, unsigned int ctx_id) if (ret) return ret; - spin_lock_irqsave(&easrc->lock, lock_flags); - ret = fsl_easrc_config_slot(easrc, ctx->index); - spin_unlock_irqrestore(&easrc->lock, lock_flags); + scoped_guard(spinlock_irqsave, &easrc->lock) + ret = fsl_easrc_config_slot(easrc, ctx->index); if (ret) return ret; @@ -1301,13 +1299,12 @@ static int fsl_easrc_request_context(int channels, struct fsl_asrc_pair *ctx) enum asrc_pair_index index = ASRC_INVALID_PAIR; struct fsl_asrc *easrc = ctx->asrc; struct device *dev; - unsigned long lock_flags; int ret = 0; int i; dev = &easrc->pdev->dev; - spin_lock_irqsave(&easrc->lock, lock_flags); + guard(spinlock_irqsave)(&easrc->lock); for (i = ASRC_PAIR_A; i < EASRC_CTX_MAX_NUM; i++) { if (easrc->pair[i]) @@ -1331,8 +1328,6 @@ static int fsl_easrc_request_context(int channels, struct fsl_asrc_pair *ctx) easrc->channel_avail -= channels; } - spin_unlock_irqrestore(&easrc->lock, lock_flags); - return ret; } @@ -1343,7 +1338,6 @@ static int fsl_easrc_request_context(int channels, struct fsl_asrc_pair *ctx) */ static void fsl_easrc_release_context(struct fsl_asrc_pair *ctx) { - unsigned long lock_flags; struct fsl_asrc *easrc; if (!ctx) @@ -1351,14 +1345,12 @@ static void fsl_easrc_release_context(struct fsl_asrc_pair *ctx) easrc = ctx->asrc; - spin_lock_irqsave(&easrc->lock, lock_flags); + guard(spinlock_irqsave)(&easrc->lock); fsl_easrc_release_slot(easrc, ctx->index); easrc->channel_avail += ctx->channels; easrc->pair[ctx->index] = NULL; - - spin_unlock_irqrestore(&easrc->lock, lock_flags); } /* @@ -2292,15 +2284,13 @@ static int fsl_easrc_runtime_suspend(struct device *dev) { struct fsl_asrc *easrc = dev_get_drvdata(dev); struct fsl_easrc_priv *easrc_priv = easrc->private; - unsigned long lock_flags; regcache_cache_only(easrc->regmap, true); clk_disable_unprepare(easrc->mem_clk); - spin_lock_irqsave(&easrc->lock, lock_flags); - easrc_priv->firmware_loaded = 0; - spin_unlock_irqrestore(&easrc->lock, lock_flags); + scoped_guard(spinlock_irqsave, &easrc->lock) + easrc_priv->firmware_loaded = 0; return 0; } @@ -2311,7 +2301,6 @@ static int fsl_easrc_runtime_resume(struct device *dev) struct fsl_easrc_priv *easrc_priv = easrc->private; struct fsl_easrc_ctx_priv *ctx_priv; struct fsl_asrc_pair *ctx; - unsigned long lock_flags; int ret; int i; @@ -2323,13 +2312,11 @@ static int fsl_easrc_runtime_resume(struct device *dev) regcache_mark_dirty(easrc->regmap); regcache_sync(easrc->regmap); - spin_lock_irqsave(&easrc->lock, lock_flags); - if (easrc_priv->firmware_loaded) { - spin_unlock_irqrestore(&easrc->lock, lock_flags); - goto skip_load; + scoped_guard(spinlock_irqsave, &easrc->lock) { + if (easrc_priv->firmware_loaded) + return 0; + easrc_priv->firmware_loaded = 1; } - easrc_priv->firmware_loaded = 1; - spin_unlock_irqrestore(&easrc->lock, lock_flags); ret = fsl_easrc_get_firmware(easrc); if (ret) { @@ -2377,9 +2364,6 @@ static int fsl_easrc_runtime_resume(struct device *dev) goto disable_mem_clk; } -skip_load: - return 0; - disable_mem_clk: clk_disable_unprepare(easrc->mem_clk); return ret; From cb87bdabd341e399a6fb18e5d9a7c0c669191719 Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:17 +0700 Subject: [PATCH 04/11] ASoC: fsl_esai: Use guard() for spin locks Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-5-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_esai.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c index cde0b0c6c1ef..4a530a6c33f0 100644 --- a/sound/soc/fsl/fsl_esai.c +++ b/sound/soc/fsl/fsl_esai.c @@ -709,10 +709,9 @@ static void fsl_esai_hw_reset(struct work_struct *work) { struct fsl_esai *esai_priv = container_of(work, struct fsl_esai, work); bool tx = true, rx = false, enabled[2]; - unsigned long lock_flags; u32 tfcr, rfcr; - spin_lock_irqsave(&esai_priv->lock, lock_flags); + guard(spinlock_irqsave)(&esai_priv->lock); /* Save the registers */ regmap_read(esai_priv->regmap, REG_ESAI_TFCR, &tfcr); regmap_read(esai_priv->regmap, REG_ESAI_RFCR, &rfcr); @@ -750,8 +749,6 @@ static void fsl_esai_hw_reset(struct work_struct *work) fsl_esai_trigger_start(esai_priv, tx); if (enabled[rx]) fsl_esai_trigger_start(esai_priv, rx); - - spin_unlock_irqrestore(&esai_priv->lock, lock_flags); } static int fsl_esai_trigger(struct snd_pcm_substream *substream, int cmd, @@ -759,7 +756,6 @@ static int fsl_esai_trigger(struct snd_pcm_substream *substream, int cmd, { struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai); bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; - unsigned long lock_flags; esai_priv->channels[tx] = substream->runtime->channels; @@ -767,16 +763,14 @@ static int fsl_esai_trigger(struct snd_pcm_substream *substream, int cmd, case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - spin_lock_irqsave(&esai_priv->lock, lock_flags); - fsl_esai_trigger_start(esai_priv, tx); - spin_unlock_irqrestore(&esai_priv->lock, lock_flags); + scoped_guard(spinlock_irqsave, &esai_priv->lock) + fsl_esai_trigger_start(esai_priv, tx); break; case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - spin_lock_irqsave(&esai_priv->lock, lock_flags); - fsl_esai_trigger_stop(esai_priv, tx); - spin_unlock_irqrestore(&esai_priv->lock, lock_flags); + scoped_guard(spinlock_irqsave, &esai_priv->lock) + fsl_esai_trigger_stop(esai_priv, tx); break; default: return -EINVAL; From a1b865cff274b8dc35f520f63ca4ef711b442869 Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:18 +0700 Subject: [PATCH 05/11] ASoC: fsl_spdif: Use guard() for spin locks Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-6-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_spdif.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index 1b9be85b34c2..ad1206ed9882 100644 --- a/sound/soc/fsl/fsl_spdif.c +++ b/sound/soc/fsl/fsl_spdif.c @@ -853,17 +853,15 @@ static int fsl_spdif_subcode_get(struct snd_kcontrol *kcontrol, struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol); struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai); struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control; - unsigned long flags; int ret = -EAGAIN; - spin_lock_irqsave(&ctrl->ctl_lock, flags); + guard(spinlock_irqsave)(&ctrl->ctl_lock); if (ctrl->ready_buf) { int idx = (ctrl->ready_buf - 1) * SPDIF_UBITS_SIZE; memcpy(&ucontrol->value.iec958.subcode[0], &ctrl->subcode[idx], SPDIF_UBITS_SIZE); ret = 0; } - spin_unlock_irqrestore(&ctrl->ctl_lock, flags); return ret; } @@ -885,17 +883,15 @@ static int fsl_spdif_qget(struct snd_kcontrol *kcontrol, struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol); struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai); struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control; - unsigned long flags; int ret = -EAGAIN; - spin_lock_irqsave(&ctrl->ctl_lock, flags); + guard(spinlock_irqsave)(&ctrl->ctl_lock); if (ctrl->ready_buf) { int idx = (ctrl->ready_buf - 1) * SPDIF_QSUB_SIZE; memcpy(&ucontrol->value.bytes.data[0], &ctrl->qsub[idx], SPDIF_QSUB_SIZE); ret = 0; } - spin_unlock_irqrestore(&ctrl->ctl_lock, flags); return ret; } From 4d748e7082ec11764863bd184f6d58cd43584f54 Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:19 +0700 Subject: [PATCH 06/11] ASoC: fsl_ssi: Use guard() for mutex locks Clean up the code using guard() for mutex locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-7-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_ssi.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index b2e1da1781ae..dc022976c982 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -1218,13 +1218,13 @@ static void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg, if (reg > 0x7f) return; - mutex_lock(&fsl_ac97_data->ac97_reg_lock); + guard(mutex)(&fsl_ac97_data->ac97_reg_lock); ret = clk_prepare_enable(fsl_ac97_data->clk); if (ret) { pr_err("ac97 write clk_prepare_enable failed: %d\n", ret); - goto ret_unlock; + return; } lreg = reg << 12; @@ -1238,9 +1238,6 @@ static void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg, udelay(100); clk_disable_unprepare(fsl_ac97_data->clk); - -ret_unlock: - mutex_unlock(&fsl_ac97_data->ac97_reg_lock); } static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97, @@ -1252,12 +1249,12 @@ static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97, unsigned int lreg; int ret; - mutex_lock(&fsl_ac97_data->ac97_reg_lock); + guard(mutex)(&fsl_ac97_data->ac97_reg_lock); ret = clk_prepare_enable(fsl_ac97_data->clk); if (ret) { pr_err("ac97 read clk_prepare_enable failed: %d\n", ret); - goto ret_unlock; + return val; } lreg = (reg & 0x7f) << 12; @@ -1272,8 +1269,6 @@ static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97, clk_disable_unprepare(fsl_ac97_data->clk); -ret_unlock: - mutex_unlock(&fsl_ac97_data->ac97_reg_lock); return val; } From 94b0cb1dd6d9633d17bcd3242597b0c70e5118a8 Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:20 +0700 Subject: [PATCH 07/11] ASoC: fsl_xcvr: Use guard() for spin locks Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-8-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_xcvr.c | 29 ++++++++++++----------------- 1 file changed, 12 insertions(+), 17 deletions(-) diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c index 6677d3bf36ec..41d100500534 100644 --- a/sound/soc/fsl/fsl_xcvr.c +++ b/sound/soc/fsl/fsl_xcvr.c @@ -797,10 +797,9 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, { struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai); bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; - unsigned long lock_flags; int ret = 0; - spin_lock_irqsave(&xcvr->lock, lock_flags); + guard(spinlock_irqsave)(&xcvr->lock); switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -812,7 +811,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, FSL_XCVR_EXT_CTRL_DPTH_RESET(tx)); if (ret < 0) { dev_err(dai->dev, "Failed to set DPATH RESET: %d\n", ret); - goto release_lock; + return ret; } if (tx) { @@ -824,7 +823,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, FSL_XCVR_ISR_CMDC_TX_EN); if (ret < 0) { dev_err(dai->dev, "err updating isr %d\n", ret); - goto release_lock; + return ret; } fallthrough; case FSL_XCVR_MODE_SPDIF: @@ -833,7 +832,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, FSL_XCVR_TX_DPTH_CTRL_STRT_DATA_TX); if (ret < 0) { dev_err(dai->dev, "Failed to start DATA_TX: %d\n", ret); - goto release_lock; + return ret; } break; } @@ -844,14 +843,14 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, FSL_XCVR_EXT_CTRL_DMA_DIS(tx), 0); if (ret < 0) { dev_err(dai->dev, "Failed to enable DMA: %d\n", ret); - goto release_lock; + return ret; } ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0, FSL_XCVR_IRQ_EARC_ALL, FSL_XCVR_IRQ_EARC_ALL); if (ret < 0) { dev_err(dai->dev, "Error while setting IER0: %d\n", ret); - goto release_lock; + return ret; } /* clear DPATH RESET */ @@ -860,7 +859,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, 0); if (ret < 0) { dev_err(dai->dev, "Failed to clear DPATH RESET: %d\n", ret); - goto release_lock; + return ret; } break; @@ -873,14 +872,14 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, FSL_XCVR_EXT_CTRL_DMA_DIS(tx)); if (ret < 0) { dev_err(dai->dev, "Failed to disable DMA: %d\n", ret); - goto release_lock; + return ret; } ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0, FSL_XCVR_IRQ_EARC_ALL, 0); if (ret < 0) { dev_err(dai->dev, "Failed to clear IER0: %d\n", ret); - goto release_lock; + return ret; } if (tx) { @@ -891,7 +890,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, FSL_XCVR_TX_DPTH_CTRL_STRT_DATA_TX); if (ret < 0) { dev_err(dai->dev, "Failed to stop DATA_TX: %d\n", ret); - goto release_lock; + return ret; } if (xcvr->soc_data->spdif_only) break; @@ -905,7 +904,7 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, if (ret < 0) { dev_err(dai->dev, "Err updating ISR %d\n", ret); - goto release_lock; + return ret; } break; } @@ -916,8 +915,6 @@ static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd, break; } -release_lock: - spin_unlock_irqrestore(&xcvr->lock, lock_flags); return ret; } @@ -1448,11 +1445,10 @@ static void reset_rx_work(struct work_struct *work) { struct fsl_xcvr *xcvr = container_of(work, struct fsl_xcvr, work_rst); struct device *dev = &xcvr->pdev->dev; - unsigned long lock_flags; u32 ext_ctrl; dev_dbg(dev, "reset rx path\n"); - spin_lock_irqsave(&xcvr->lock, lock_flags); + guard(spinlock_irqsave)(&xcvr->lock); regmap_read(xcvr->regmap, FSL_XCVR_EXT_CTRL, &ext_ctrl); if (!(ext_ctrl & FSL_XCVR_EXT_CTRL_DMA_RD_DIS)) { @@ -1469,7 +1465,6 @@ static void reset_rx_work(struct work_struct *work) FSL_XCVR_EXT_CTRL_RX_DPTH_RESET, 0); } - spin_unlock_irqrestore(&xcvr->lock, lock_flags); } static irqreturn_t irq0_isr(int irq, void *devid) From 929d412fdb0d9cb0bd7bae1b1b64cfaf3cc24524 Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:21 +0700 Subject: [PATCH 08/11] ASoC: imx-audio-rpmsg: Use guard() for spin locks Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-9-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/imx-audio-rpmsg.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/sound/soc/fsl/imx-audio-rpmsg.c b/sound/soc/fsl/imx-audio-rpmsg.c index 38aafb8954c7..b55dfbdb4502 100644 --- a/sound/soc/fsl/imx-audio-rpmsg.c +++ b/sound/soc/fsl/imx-audio-rpmsg.c @@ -22,7 +22,6 @@ static int imx_audio_rpmsg_cb(struct rpmsg_device *rpdev, void *data, int len, struct rpmsg_r_msg *r_msg = (struct rpmsg_r_msg *)data; struct rpmsg_info *info; struct rpmsg_msg *msg; - unsigned long flags; if (!rpmsg->rpmsg_pdev) return 0; @@ -37,21 +36,21 @@ static int imx_audio_rpmsg_cb(struct rpmsg_device *rpdev, void *data, int len, /* TYPE C is notification from M core */ switch (r_msg->header.cmd) { case TX_PERIOD_DONE: - spin_lock_irqsave(&info->lock[TX], flags); - msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM]; - msg->r_msg.param.buffer_tail = - r_msg->param.buffer_tail; - msg->r_msg.param.buffer_tail %= info->num_period[TX]; - spin_unlock_irqrestore(&info->lock[TX], flags); + scoped_guard(spinlock_irqsave, &info->lock[TX]) { + msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM]; + msg->r_msg.param.buffer_tail = + r_msg->param.buffer_tail; + msg->r_msg.param.buffer_tail %= info->num_period[TX]; + } info->callback[TX](info->callback_param[TX]); break; case RX_PERIOD_DONE: - spin_lock_irqsave(&info->lock[RX], flags); - msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM]; - msg->r_msg.param.buffer_tail = - r_msg->param.buffer_tail; - msg->r_msg.param.buffer_tail %= info->num_period[1]; - spin_unlock_irqrestore(&info->lock[RX], flags); + scoped_guard(spinlock_irqsave, &info->lock[RX]) { + msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM]; + msg->r_msg.param.buffer_tail = + r_msg->param.buffer_tail; + msg->r_msg.param.buffer_tail %= info->num_period[1]; + } info->callback[RX](info->callback_param[RX]); break; default: From 11ce4dd4e7bef521e82694a895dbd926b25084da Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:22 +0700 Subject: [PATCH 09/11] ASoC: fsl_rpmsg: Use guard() for mutex & spin locks Clean up the code using guard() for mutex & spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-10-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/imx-pcm-rpmsg.c | 69 +++++++++++++++-------------------- 1 file changed, 30 insertions(+), 39 deletions(-) diff --git a/sound/soc/fsl/imx-pcm-rpmsg.c b/sound/soc/fsl/imx-pcm-rpmsg.c index 2a4813c6cda9..ee741f3d79bd 100644 --- a/sound/soc/fsl/imx-pcm-rpmsg.c +++ b/sound/soc/fsl/imx-pcm-rpmsg.c @@ -39,10 +39,9 @@ static int imx_rpmsg_pcm_send_message(struct rpmsg_msg *msg, struct rpmsg_device *rpdev = info->rpdev; int ret = 0; - mutex_lock(&info->msg_lock); + guard(mutex)(&info->msg_lock); if (!rpdev) { dev_err(info->dev, "rpmsg channel not ready\n"); - mutex_unlock(&info->msg_lock); return -EINVAL; } @@ -55,15 +54,12 @@ static int imx_rpmsg_pcm_send_message(struct rpmsg_msg *msg, sizeof(struct rpmsg_s_msg)); if (ret) { dev_err(&rpdev->dev, "rpmsg_send failed: %d\n", ret); - mutex_unlock(&info->msg_lock); return ret; } /* No receive msg for TYPE_C command */ - if (msg->s_msg.header.type == MSG_TYPE_C) { - mutex_unlock(&info->msg_lock); + if (msg->s_msg.header.type == MSG_TYPE_C) return 0; - } /* wait response from rpmsg */ ret = wait_for_completion_timeout(&info->cmd_complete, @@ -71,7 +67,6 @@ static int imx_rpmsg_pcm_send_message(struct rpmsg_msg *msg, if (!ret) { dev_err(&rpdev->dev, "rpmsg_send cmd %d timeout!\n", msg->s_msg.header.cmd); - mutex_unlock(&info->msg_lock); return -ETIMEDOUT; } @@ -100,8 +95,6 @@ static int imx_rpmsg_pcm_send_message(struct rpmsg_msg *msg, dev_dbg(&rpdev->dev, "cmd:%d, resp %d\n", msg->s_msg.header.cmd, info->r_msg.param.resp); - mutex_unlock(&info->msg_lock); - return 0; } @@ -109,14 +102,13 @@ static int imx_rpmsg_insert_workqueue(struct snd_pcm_substream *substream, struct rpmsg_msg *msg, struct rpmsg_info *info) { - unsigned long flags; int ret = 0; /* * Queue the work to workqueue. * If the queue is full, drop the message. */ - spin_lock_irqsave(&info->wq_lock, flags); + guard(spinlock_irqsave)(&info->wq_lock); if (info->work_write_index != info->work_read_index) { int index = info->work_write_index; @@ -130,7 +122,6 @@ static int imx_rpmsg_insert_workqueue(struct snd_pcm_substream *substream, info->msg_drop_count[substream->stream]++; ret = -EPIPE; } - spin_unlock_irqrestore(&info->wq_lock, flags); return ret; } @@ -523,7 +514,6 @@ static int imx_rpmsg_pcm_ack(struct snd_soc_component *component, snd_pcm_sframes_t avail; struct timer_list *timer; struct rpmsg_msg *msg; - unsigned long flags; int buffer_tail = 0; int written_num; @@ -553,11 +543,11 @@ static int imx_rpmsg_pcm_ack(struct snd_soc_component *component, msg->s_msg.param.buffer_tail = buffer_tail; /* The notification message is updated to latest */ - spin_lock_irqsave(&info->lock[substream->stream], flags); - memcpy(&info->notify[substream->stream], msg, - sizeof(struct rpmsg_s_msg)); - info->notify_updated[substream->stream] = true; - spin_unlock_irqrestore(&info->lock[substream->stream], flags); + scoped_guard(spinlock_irqsave, &info->lock[substream->stream]) { + memcpy(&info->notify[substream->stream], msg, + sizeof(struct rpmsg_s_msg)); + info->notify_updated[substream->stream] = true; + } if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) avail = snd_pcm_playback_hw_avail(runtime); @@ -641,7 +631,7 @@ static void imx_rpmsg_pcm_work(struct work_struct *work) bool is_notification = false; struct rpmsg_info *info; struct rpmsg_msg msg; - unsigned long flags; + bool updated; work_of_rpmsg = container_of(work, struct work_of_rpmsg, work); info = work_of_rpmsg->info; @@ -652,25 +642,26 @@ static void imx_rpmsg_pcm_work(struct work_struct *work) * enough data in M core side, need to let M core know * data is updated immediately. */ - spin_lock_irqsave(&info->lock[TX], flags); - if (info->notify_updated[TX]) { - memcpy(&msg, &info->notify[TX], sizeof(struct rpmsg_s_msg)); - info->notify_updated[TX] = false; - spin_unlock_irqrestore(&info->lock[TX], flags); - info->send_message(&msg, info); - } else { - spin_unlock_irqrestore(&info->lock[TX], flags); + scoped_guard(spinlock_irqsave, &info->lock[TX]) { + updated = info->notify_updated[TX]; + if (updated) { + memcpy(&msg, &info->notify[TX], sizeof(struct rpmsg_s_msg)); + info->notify_updated[TX] = false; + } } + if (updated) + info->send_message(&msg, info); - spin_lock_irqsave(&info->lock[RX], flags); - if (info->notify_updated[RX]) { - memcpy(&msg, &info->notify[RX], sizeof(struct rpmsg_s_msg)); - info->notify_updated[RX] = false; - spin_unlock_irqrestore(&info->lock[RX], flags); - info->send_message(&msg, info); - } else { - spin_unlock_irqrestore(&info->lock[RX], flags); + scoped_guard(spinlock_irqsave, &info->lock[RX]) { + updated = info->notify_updated[RX]; + if (updated) { + memcpy(&msg, &info->notify[RX], sizeof(struct rpmsg_s_msg)); + info->notify_updated[RX] = false; + } } + if (updated) + info->send_message(&msg, info); + /* Skip the notification message for it has been processed above */ if (work_of_rpmsg->msg.s_msg.header.type == MSG_TYPE_C && @@ -682,10 +673,10 @@ static void imx_rpmsg_pcm_work(struct work_struct *work) info->send_message(&work_of_rpmsg->msg, info); /* update read index */ - spin_lock_irqsave(&info->wq_lock, flags); - info->work_read_index++; - info->work_read_index %= WORK_MAX_NUM; - spin_unlock_irqrestore(&info->wq_lock, flags); + scoped_guard(spinlock_irqsave, &info->wq_lock) { + info->work_read_index++; + info->work_read_index %= WORK_MAX_NUM; + } } static int imx_rpmsg_pcm_probe(struct platform_device *pdev) From caed9fb2e428e0866c500b8dddabf4993a3aaa30 Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:23 +0700 Subject: [PATCH 10/11] ASoC: fsl: mpc5200_dma: Use guard() for spin locks Clean up the code using guard() for spin locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-11-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/mpc5200_dma.c | 56 ++++++++++++++++++------------------- 1 file changed, 28 insertions(+), 28 deletions(-) diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c index 56e2cf2f727b..bfedb2dea0b3 100644 --- a/sound/soc/fsl/mpc5200_dma.c +++ b/sound/soc/fsl/mpc5200_dma.c @@ -77,18 +77,20 @@ static irqreturn_t psc_dma_bcom_irq(int irq, void *_psc_dma_stream) { struct psc_dma_stream *s = _psc_dma_stream; - spin_lock(&s->psc_dma->lock); - /* For each finished period, dequeue the completed period buffer - * and enqueue a new one in it's place. */ - while (bcom_buffer_done(s->bcom_task)) { - bcom_retrieve_buffer(s->bcom_task, NULL, NULL); + scoped_guard(spinlock, &s->psc_dma->lock) { + /* + * For each finished period, dequeue the completed period buffer + * and enqueue a new one in its place + */ + while (bcom_buffer_done(s->bcom_task)) { + bcom_retrieve_buffer(s->bcom_task, NULL, NULL); - s->period_current = (s->period_current+1) % s->runtime->periods; - s->period_count++; + s->period_current = (s->period_current+1) % s->runtime->periods; + s->period_count++; - psc_dma_bcom_enqueue_next_buffer(s); + psc_dma_bcom_enqueue_next_buffer(s); + } } - spin_unlock(&s->psc_dma->lock); /* If the stream is active, then also inform the PCM middle layer * of the period finished event. */ @@ -116,7 +118,6 @@ static int psc_dma_trigger(struct snd_soc_component *component, struct psc_dma_stream *s = to_psc_dma_stream(substream, psc_dma); struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs; u16 imr; - unsigned long flags; int i; switch (cmd) { @@ -135,19 +136,18 @@ static int psc_dma_trigger(struct snd_soc_component *component, /* Fill up the bestcomm bd queue and enable DMA. * This will begin filling the PSC's fifo. */ - spin_lock_irqsave(&psc_dma->lock, flags); + scoped_guard(spinlock_irqsave, &psc_dma->lock) { + if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) + bcom_gen_bd_rx_reset(s->bcom_task); + else + bcom_gen_bd_tx_reset(s->bcom_task); - if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) - bcom_gen_bd_rx_reset(s->bcom_task); - else - bcom_gen_bd_tx_reset(s->bcom_task); + for (i = 0; i < runtime->periods; i++) + if (!bcom_queue_full(s->bcom_task)) + psc_dma_bcom_enqueue_next_buffer(s); - for (i = 0; i < runtime->periods; i++) - if (!bcom_queue_full(s->bcom_task)) - psc_dma_bcom_enqueue_next_buffer(s); - - bcom_enable(s->bcom_task); - spin_unlock_irqrestore(&psc_dma->lock, flags); + bcom_enable(s->bcom_task); + } out_8(®s->command, MPC52xx_PSC_RST_ERR_STAT); @@ -158,13 +158,13 @@ static int psc_dma_trigger(struct snd_soc_component *component, substream->pstr->stream, s->period_count); s->active = 0; - spin_lock_irqsave(&psc_dma->lock, flags); - bcom_disable(s->bcom_task); - if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) - bcom_gen_bd_rx_reset(s->bcom_task); - else - bcom_gen_bd_tx_reset(s->bcom_task); - spin_unlock_irqrestore(&psc_dma->lock, flags); + scoped_guard(spinlock_irqsave, &psc_dma->lock) { + bcom_disable(s->bcom_task); + if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE) + bcom_gen_bd_rx_reset(s->bcom_task); + else + bcom_gen_bd_tx_reset(s->bcom_task); + } break; From 8a2d7e46317a85327f8a7ea7d33139394b2b9662 Mon Sep 17 00:00:00 2001 From: bui duc phuc Date: Mon, 15 Jun 2026 16:38:24 +0700 Subject: [PATCH 11/11] ASoC: fsl: mpc5200_psc_ac97: Use guard() for mutex locks Clean up the code using guard() for mutex locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc Reviewed-by: Frank Li Link: https://patch.msgid.link/20260615093824.115751-12-phucduc.bui@gmail.com Signed-off-by: Mark Brown --- sound/soc/fsl/mpc5200_psc_ac97.c | 34 +++++++++++--------------------- 1 file changed, 12 insertions(+), 22 deletions(-) diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c index 8554fb690772..d4d9f5b6bc07 100644 --- a/sound/soc/fsl/mpc5200_psc_ac97.c +++ b/sound/soc/fsl/mpc5200_psc_ac97.c @@ -31,14 +31,13 @@ static unsigned short psc_ac97_read(struct snd_ac97 *ac97, unsigned short reg) int status; unsigned int val; - mutex_lock(&psc_dma->mutex); + guard(mutex)(&psc_dma->mutex); /* Wait for command send status zero = ready */ status = spin_event_timeout(!(in_be16(&psc_dma->psc_regs->sr_csr.status) & MPC52xx_PSC_SR_CMDSEND), 100, 0); if (status == 0) { pr_err("timeout on ac97 bus (rdy)\n"); - mutex_unlock(&psc_dma->mutex); return -ENODEV; } @@ -54,19 +53,16 @@ static unsigned short psc_ac97_read(struct snd_ac97 *ac97, unsigned short reg) if (status == 0) { pr_err("timeout on ac97 read (val) %x\n", in_be16(&psc_dma->psc_regs->sr_csr.status)); - mutex_unlock(&psc_dma->mutex); return -ENODEV; } /* Get the data */ val = in_be32(&psc_dma->psc_regs->ac97_data); if (((val >> 24) & 0x7f) != reg) { pr_err("reg echo error on ac97 read\n"); - mutex_unlock(&psc_dma->mutex); return -ENODEV; } val = (val >> 8) & 0xffff; - mutex_unlock(&psc_dma->mutex); return (unsigned short) val; } @@ -75,52 +71,46 @@ static void psc_ac97_write(struct snd_ac97 *ac97, { int status; - mutex_lock(&psc_dma->mutex); + guard(mutex)(&psc_dma->mutex); /* Wait for command status zero = ready */ status = spin_event_timeout(!(in_be16(&psc_dma->psc_regs->sr_csr.status) & MPC52xx_PSC_SR_CMDSEND), 100, 0); if (status == 0) { pr_err("timeout on ac97 bus (write)\n"); - goto out; + return; } /* Write data */ out_be32(&psc_dma->psc_regs->ac97_cmd, ((reg & 0x7f) << 24) | (val << 8)); - - out: - mutex_unlock(&psc_dma->mutex); } static void psc_ac97_warm_reset(struct snd_ac97 *ac97) { struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs; - mutex_lock(&psc_dma->mutex); + guard(mutex)(&psc_dma->mutex); out_be32(®s->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_AWR); udelay(3); out_be32(®s->sicr, psc_dma->sicr); - - mutex_unlock(&psc_dma->mutex); } static void psc_ac97_cold_reset(struct snd_ac97 *ac97) { struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs; - mutex_lock(&psc_dma->mutex); - dev_dbg(psc_dma->dev, "cold reset\n"); + scoped_guard(mutex, &psc_dma->mutex) { + dev_dbg(psc_dma->dev, "cold reset\n"); - mpc5200_psc_ac97_gpio_reset(psc_dma->id); + mpc5200_psc_ac97_gpio_reset(psc_dma->id); - /* Notify the PSC that a reset has occurred */ - out_be32(®s->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_ACRB); + /* Notify the PSC that a reset has occurred */ + out_be32(®s->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_ACRB); - /* Re-enable RX and TX */ - out_8(®s->command, MPC52xx_PSC_TX_ENABLE | MPC52xx_PSC_RX_ENABLE); - - mutex_unlock(&psc_dma->mutex); + /* Re-enable RX and TX */ + out_8(®s->command, MPC52xx_PSC_TX_ENABLE | MPC52xx_PSC_RX_ENABLE); + } usleep_range(1000, 2000); psc_ac97_warm_reset(ac97);