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Sun, 30 Aug 2020 23:48:58 -0400 (EDT) From: Samuel Holland To: Mark Brown , Liam Girdwood , Maxime Ripard , Chen-Yu Tsai , Jaroslav Kysela , Takashi Iwai Subject: [PATCH 9/9] ASoC: sun8i-codec: Manage module clock via DAPM Date: Sun, 30 Aug 2020 22:48:52 -0500 Message-Id: <20200831034852.18841-10-samuel@sholland.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200831034852.18841-1-samuel@sholland.org> References: <20200831034852.18841-1-samuel@sholland.org> MIME-Version: 1.0 Cc: Ondrej Jirman , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Samuel Holland X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" By representing the module clock as a DAPM widget, we ensure that the clock is only enabled when the module is actually in use, without additional code in runtime PM hooks. Signed-off-by: Samuel Holland Acked-by: Maxime Ripard --- sound/soc/sunxi/sun8i-codec.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/sound/soc/sunxi/sun8i-codec.c b/sound/soc/sunxi/sun8i-codec.c index 8a7f98910347..178f6fb31fd4 100644 --- a/sound/soc/sunxi/sun8i-codec.c +++ b/sound/soc/sunxi/sun8i-codec.c @@ -102,26 +102,15 @@ static int sun8i_codec_runtime_resume(struct device *dev) struct sun8i_codec *scodec = dev_get_drvdata(dev); int ret; - ret = clk_prepare_enable(scodec->clk_module); - if (ret) { - dev_err(dev, "Failed to enable the module clock\n"); - return ret; - } - regcache_cache_only(scodec->regmap, false); ret = regcache_sync(scodec->regmap); if (ret) { dev_err(dev, "Failed to sync regmap cache\n"); - goto err_disable_clk; + return ret; } return 0; - -err_disable_clk: - clk_disable_unprepare(scodec->clk_module); - - return ret; } static int sun8i_codec_runtime_suspend(struct device *dev) @@ -131,8 +120,6 @@ static int sun8i_codec_runtime_suspend(struct device *dev) regcache_cache_only(scodec->regmap, true); regcache_mark_dirty(scodec->regmap); - clk_disable_unprepare(scodec->clk_module); - return 0; } @@ -379,6 +366,8 @@ static const struct snd_kcontrol_new sun8i_input_mixer_controls[] = { }; static const struct snd_soc_dapm_widget sun8i_codec_dapm_widgets[] = { + SND_SOC_DAPM_CLOCK_SUPPLY("mod"), + /* Digital parts of the DACs and ADC */ SND_SOC_DAPM_SUPPLY("DAC", SUN8I_DAC_DIG_CTRL, SUN8I_DAC_DIG_CTRL_ENDA, 0, NULL, 0), @@ -448,6 +437,8 @@ static const struct snd_soc_dapm_widget sun8i_codec_dapm_widgets[] = { static const struct snd_soc_dapm_route sun8i_codec_dapm_routes[] = { /* Clock Routes */ + { "AIF1", NULL, "mod" }, + { "AIF1", NULL, "SYSCLK AIF1" }, { "AIF1 PLL", NULL, "AIF1" }, { "SYSCLK", NULL, "AIF1 PLL" },