linux-kernel - [PATCH v9 2/8] ASoC: sunxi: sun50i-codec-analog: Add support for cpvdd regulator supply

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Message-Id: <20181122102325.29495-3-wens@csie.org>
Date:   Thu, 22 Nov 2018 18:23:19 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, devicetree@...r.kernel.org,
        alsa-devel@...a-project.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Vasily Khoruzhick <anarsoul@...il.com>
Subject: [PATCH v9 2/8] ASoC: sunxi: sun50i-codec-analog: Add support for cpvdd regulator supply

On the Allwinner A64 SoCs, the audio codec has a built-in headphone
amplifier. This amplifier has a power supply separate from the rest of
the analog audio circuitry, labeled cpvdd.

This patch adds a DAPM widget for this supply, and ties it to the
headphone amp widget.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 sound/soc/sunxi/sun50i-codec-analog.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/sunxi/sun50i-codec-analog.c b/sound/soc/sunxi/sun50i-codec-analog.c
index 8f5f999df631..df1fed0aa001 100644
--- a/sound/soc/sunxi/sun50i-codec-analog.c
+++ b/sound/soc/sunxi/sun50i-codec-analog.c
@@ -274,6 +274,7 @@ static const struct snd_soc_dapm_widget sun50i_a64_codec_widgets[] = {
 	 * stream widgets at the card level.
 	 */
 
+	SND_SOC_DAPM_REGULATOR_SUPPLY("hpvcc", 0, 0),
 	SND_SOC_DAPM_MUX("Headphone Source Playback Route",
 			 SND_SOC_NOPM, 0, 0, sun50i_codec_hp_src),
 	SND_SOC_DAPM_OUT_DRV("Headphone Amp", SUN50I_ADDA_HP_CTRL,
@@ -361,6 +362,7 @@ static const struct snd_soc_dapm_route sun50i_a64_codec_routes[] = {
 	{ "Headphone Source Playback Route", "Mixer", "Left Mixer" },
 	{ "Headphone Source Playback Route", "Mixer", "Right Mixer" },
 	{ "Headphone Amp", NULL, "Headphone Source Playback Route" },
+	{ "Headphone Amp", NULL, "hpvcc" },
 	{ "HP", NULL, "Headphone Amp" },
 
 	/* Microphone Routes */
-- 
2.19.1