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([183.91.15.56]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-387d20a2f2fsm2784349a91.13.2026.07.08.05.52.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Jul 2026 05:52:40 -0700 (PDT) From: phucduc.bui@gmail.com To: Mark Brown , Takashi Iwai , Tzung-Bi Shih , David Rhodes , Charles Keepax Cc: Liam Girdwood , Jaroslav Kysela , Cheng-Yi Chiang , Guenter Roeck , Benson Leung , Richard Fitzgerald , povik+lin@cutebit.org, u.kleine-koenig@baylibre.com, kuninori.morimoto.gx@renesas.com, christian.ehrhardt@codasip.com, Linus Walleij , Arnd Bergmann , Sakari Ailus , Thorsten Blum , Chris Morgan , Dan Carpenter , Marco Crivellari , Rosen Penev , Weidong Wang , Teguh Sobirin , Val Packett , Luca Weiss , wangdicheng , linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, patches@opensource.cirrus.com, chrome-platform@lists.linux.dev, asahi@lists.linux.dev, Cezary Rojewski , bui duc phuc Subject: [PATCH v4 17/24] ASoC: codecs: cs43130: Use guard() for mutex locks Date: Wed, 8 Jul 2026 19:49:54 +0700 Message-ID: <20260708125002.202515-18-phucduc.bui@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260708125002.202515-1-phucduc.bui@gmail.com> References: <20260708125002.202515-1-phucduc.bui@gmail.com> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev 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. Reviewed-by: Charles Keepax Reviewed-by: Cezary Rojewski Signed-off-by: bui duc phuc --- Changes in v4: - Added Reviewed-by tags from Charles. sound/soc/codecs/cs43130.c | 72 +++++++++++++++++++------------------- 1 file changed, 36 insertions(+), 36 deletions(-) diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c index e7b06f962790..48d88dad4ceb 100644 --- a/sound/soc/codecs/cs43130.c +++ b/sound/soc/codecs/cs43130.c @@ -6,6 +6,7 @@ * * Authors: Li Xu */ +#include #include #include #include @@ -818,26 +819,26 @@ 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 +882,26 @@ 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 +989,13 @@ 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; } -- 2.43.0