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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3081e5d0828sm24616275eec.10.2026.06.17.03.35.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Jun 2026 03:35:38 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown Cc: Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Cheng-Yi Chiang , Tzung-Bi Shih , Guenter Roeck , Benson Leung , David Rhodes , Richard Fitzgerald , povik+lin@cutebit.org, Charles Keepax , Support Opensource , Nick Li , Herve Codina , Srinivas Kandagatla , Matthias Brugger , AngeloGioacchino Del Regno , Shenghao Ding , Kevin Lu , Baojun Xu , Sen Wang , Oder Chiou , Lars-Peter Clausen , nuno.sa@analog.com, Steven Eckhoff , patches@opensource.cirrus.com, chrome-platform@lists.linux.dev, asahi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, bui duc phuc Subject: [PATCH 17/78] ASoC: codecs: cs43130: Use guard() for mutex locks Date: Wed, 17 Jun 2026 17:31:34 +0700 Message-ID: <20260617103235.449609-18-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260617103235.449609-1-phucduc.bui@gmail.com> References: <20260617103235.449609-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: bui duc phuc Clean up the code using guard() for mutex locks. Merely code refactoring, and no behavior change. Signed-off-by: bui duc phuc --- sound/soc/codecs/cs43130.c | 96 +++++++++++++++++++------------------- 1 file changed, 47 insertions(+), 49 deletions(-) diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c index e7b06f962790..5e7472e9e107 100644 --- a/sound/soc/codecs/cs43130.c +++ b/sound/soc/codecs/cs43130.c @@ -818,26 +818,26 @@ static int cs43130_dsd_hw_params(struct snd_pcm_substream *substream, unsigned int required_clk; u8 dsd_speed; - mutex_lock(&cs43130->clk_mutex); - if (!cs43130->clk_req) { - /* no DAI is currently using clk */ - if (!(CS43130_MCLK_22M % params_rate(params))) - required_clk = CS43130_MCLK_22M; - else - required_clk = CS43130_MCLK_24M; + scoped_guard(mutex, &cs43130->clk_mutex) { + if (!cs43130->clk_req) { + /* no DAI is currently using clk */ + if (!(CS43130_MCLK_22M % params_rate(params))) + required_clk = CS43130_MCLK_22M; + else + required_clk = CS43130_MCLK_24M; + + cs43130_set_pll(component, 0, 0, cs43130->mclk, required_clk); + if (cs43130->pll_bypass) + cs43130_change_clksrc(component, CS43130_MCLK_SRC_EXT); + else + cs43130_change_clksrc(component, CS43130_MCLK_SRC_PLL); + } - cs43130_set_pll(component, 0, 0, cs43130->mclk, required_clk); - if (cs43130->pll_bypass) - cs43130_change_clksrc(component, CS43130_MCLK_SRC_EXT); - else - cs43130_change_clksrc(component, CS43130_MCLK_SRC_PLL); + cs43130->clk_req++; + if (cs43130->clk_req == 2) + cs43130_pcm_dsd_mix(true, cs43130->regmap); } - cs43130->clk_req++; - if (cs43130->clk_req == 2) - cs43130_pcm_dsd_mix(true, cs43130->regmap); - mutex_unlock(&cs43130->clk_mutex); - switch (params_rate(params)) { case 176400: dsd_speed = 0; @@ -881,26 +881,26 @@ static int cs43130_hw_params(struct snd_pcm_substream *substream, unsigned int required_clk; u8 dsd_speed; - mutex_lock(&cs43130->clk_mutex); - if (!cs43130->clk_req) { - /* no DAI is currently using clk */ - if (!(CS43130_MCLK_22M % params_rate(params))) - required_clk = CS43130_MCLK_22M; - else - required_clk = CS43130_MCLK_24M; + scoped_guard(mutex, &cs43130->clk_mutex) { + if (!cs43130->clk_req) { + /* no DAI is currently using clk */ + if (!(CS43130_MCLK_22M % params_rate(params))) + required_clk = CS43130_MCLK_22M; + else + required_clk = CS43130_MCLK_24M; + + cs43130_set_pll(component, 0, 0, cs43130->mclk, required_clk); + if (cs43130->pll_bypass) + cs43130_change_clksrc(component, CS43130_MCLK_SRC_EXT); + else + cs43130_change_clksrc(component, CS43130_MCLK_SRC_PLL); + } - cs43130_set_pll(component, 0, 0, cs43130->mclk, required_clk); - if (cs43130->pll_bypass) - cs43130_change_clksrc(component, CS43130_MCLK_SRC_EXT); - else - cs43130_change_clksrc(component, CS43130_MCLK_SRC_PLL); + cs43130->clk_req++; + if (cs43130->clk_req == 2) + cs43130_pcm_dsd_mix(true, cs43130->regmap); } - cs43130->clk_req++; - if (cs43130->clk_req == 2) - cs43130_pcm_dsd_mix(true, cs43130->regmap); - mutex_unlock(&cs43130->clk_mutex); - switch (dai->id) { case CS43130_ASP_DOP_DAI: case CS43130_XSP_DOP_DAI: @@ -988,14 +988,13 @@ static int cs43130_hw_free(struct snd_pcm_substream *substream, struct snd_soc_component *component = dai->component; struct cs43130_private *cs43130 = snd_soc_component_get_drvdata(component); - mutex_lock(&cs43130->clk_mutex); + guard(mutex)(&cs43130->clk_mutex); cs43130->clk_req--; if (!cs43130->clk_req) { /* no DAI is currently using clk */ cs43130_change_clksrc(component, CS43130_MCLK_SRC_RCO); cs43130_pcm_dsd_mix(false, cs43130->regmap); } - mutex_unlock(&cs43130->clk_mutex); return 0; } @@ -2132,18 +2131,18 @@ static void cs43130_imp_meas(struct work_struct *wk) cs43130->hpload_done = false; - mutex_lock(&cs43130->clk_mutex); - if (!cs43130->clk_req) { - /* clk not in use */ - cs43130_set_pll(component, 0, 0, cs43130->mclk, CS43130_MCLK_22M); - if (cs43130->pll_bypass) - cs43130_change_clksrc(component, CS43130_MCLK_SRC_EXT); - else - cs43130_change_clksrc(component, CS43130_MCLK_SRC_PLL); - } + scoped_guard(mutex, &cs43130->clk_mutex) { + if (!cs43130->clk_req) { + /* clk not in use */ + cs43130_set_pll(component, 0, 0, cs43130->mclk, CS43130_MCLK_22M); + if (cs43130->pll_bypass) + cs43130_change_clksrc(component, CS43130_MCLK_SRC_EXT); + else + cs43130_change_clksrc(component, CS43130_MCLK_SRC_PLL); + } - cs43130->clk_req++; - mutex_unlock(&cs43130->clk_mutex); + cs43130->clk_req++; + } regmap_read(cs43130->regmap, CS43130_INT_STATUS_4, ®); @@ -2215,12 +2214,11 @@ static void cs43130_imp_meas(struct work_struct *wk) regmap_multi_reg_write(cs43130->regmap, hp_cln_seq, ARRAY_SIZE(hp_cln_seq)); - mutex_lock(&cs43130->clk_mutex); + guard(mutex)(&cs43130->clk_mutex); cs43130->clk_req--; /* clk not in use */ if (!cs43130->clk_req) cs43130_change_clksrc(component, CS43130_MCLK_SRC_RCO); - mutex_unlock(&cs43130->clk_mutex); } static irqreturn_t cs43130_irq_thread(int irq, void *data) -- 2.43.0