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Sun, 16 Feb 2020 21:18:15 -0500 (EST) From: Samuel Holland To: Mark Brown , Liam Girdwood , Jaroslav Kysela , Takashi Iwai , Maxime Ripard , Chen-Yu Tsai , Vasily Khoruzhick , Luca Weiss Date: Sun, 16 Feb 2020 20:18:07 -0600 Message-Id: <20200217021813.53266-3-samuel@sholland.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200217021813.53266-1-samuel@sholland.org> References: <20200217021813.53266-1-samuel@sholland.org> MIME-Version: 1.0 Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Samuel Holland Subject: [alsa-devel] [PATCH 2/8] ASoC: sun50i-codec-analog: Gate the amplifier clock during suspend 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" The clock must be running for the zero-crossing mute functionality. However, it must be gated for VDD-SYS to be turned off during system suspend. Disable it in the suspend callback, after everything has already been muted, to avoid pops when muting/unmuting outputs. Signed-off-by: Samuel Holland Acked-by: Chen-Yu Tsai --- sound/soc/sunxi/sun50i-codec-analog.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/sound/soc/sunxi/sun50i-codec-analog.c b/sound/soc/sunxi/sun50i-codec-analog.c index cbdb31c3b7bd..4ad262c2e59b 100644 --- a/sound/soc/sunxi/sun50i-codec-analog.c +++ b/sound/soc/sunxi/sun50i-codec-analog.c @@ -438,6 +438,19 @@ static const struct snd_soc_dapm_route sun50i_a64_codec_routes[] = { { "EARPIECE", NULL, "Earpiece Amp" }, }; +static int sun50i_a64_codec_suspend(struct snd_soc_component *component) +{ + return regmap_update_bits(component->regmap, SUN50I_ADDA_HP_CTRL, + BIT(SUN50I_ADDA_HP_CTRL_PA_CLK_GATE), + BIT(SUN50I_ADDA_HP_CTRL_PA_CLK_GATE)); +} + +static int sun50i_a64_codec_resume(struct snd_soc_component *component) +{ + return regmap_update_bits(component->regmap, SUN50I_ADDA_HP_CTRL, + BIT(SUN50I_ADDA_HP_CTRL_PA_CLK_GATE), 0); +} + static const struct snd_soc_component_driver sun50i_codec_analog_cmpnt_drv = { .controls = sun50i_a64_codec_controls, .num_controls = ARRAY_SIZE(sun50i_a64_codec_controls), @@ -445,6 +458,8 @@ static const struct snd_soc_component_driver sun50i_codec_analog_cmpnt_drv = { .num_dapm_widgets = ARRAY_SIZE(sun50i_a64_codec_widgets), .dapm_routes = sun50i_a64_codec_routes, .num_dapm_routes = ARRAY_SIZE(sun50i_a64_codec_routes), + .suspend = sun50i_a64_codec_suspend, + .resume = sun50i_a64_codec_resume, }; static const struct of_device_id sun50i_codec_analog_of_match[] = {