From: Daniel Kurtz <djkurtz@chromium.org>
To: unlisted-recipients:; (no To-header on input)
Cc: Dylan Reid <dgreid@chromium.org>,
Jimmy Cheng-Yi Chiang <cychiang@google.com>,
Akshu Agrawal <akshu.agrawal@amd.com>,
Daniel Kurtz <djkurtz@chromium.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>,
Alex Deucher <alexander.deucher@amd.com>,
"Mukunda, Vijendar" <Vijendar.Mukunda@amd.com>,
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
Wei Yongjun <weiyongjun1@huawei.com>,
alsa-devel@alsa-project.org (moderated list:SOUND - SOC LAYER /
DYNAMIC AUDIO POWER MANAGEM...),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 2/2] ASoC: AMD: Add an always on fixed 1.8V regulator for da7219 VDDIO
Date: Tue, 17 Jul 2018 18:49:09 -0600 [thread overview]
Message-ID: <20180718004909.213735-3-djkurtz@chromium.org> (raw)
In-Reply-To: <20180718004909.213735-1-djkurtz@chromium.org>
From: Akshu Agrawal <akshu.agrawal@amd.com>
DA7219's VDDIO for our platform need to be configured for 1.8V.
Hence we register a fixed 1.8V voltage regulator in the machine driver.
Change-Id: I65fd93e1dd37c3e0d38265b4b1492ea53b93afd4
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
---
sound/soc/amd/Kconfig | 1 +
sound/soc/amd/acp-da7219-max98357a.c | 14 ++++++++++++++
2 files changed, 15 insertions(+)
diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig
index 6cbf9cf4d1a4c2..58c1dcb4d2550f 100644
--- a/sound/soc/amd/Kconfig
+++ b/sound/soc/amd/Kconfig
@@ -8,6 +8,7 @@ config SND_SOC_AMD_CZ_DA7219MX98357_MACH
select SND_SOC_DA7219
select SND_SOC_MAX98357A
select SND_SOC_ADAU7002
+ select REGULATOR
depends on SND_SOC_AMD_ACP && I2C
help
This option enables machine driver for DA7219 and MAX9835.
diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c
index ccddc6650b9c79..6ea0f42f5b7692 100644
--- a/sound/soc/amd/acp-da7219-max98357a.c
+++ b/sound/soc/amd/acp-da7219-max98357a.c
@@ -32,6 +32,8 @@
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/module.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/acpi.h>
@@ -278,11 +280,23 @@ static struct snd_soc_card cz_card = {
.num_controls = ARRAY_SIZE(cz_mc_controls),
};
+static struct regulator_consumer_supply acp_da7219_supplies[] = {
+ REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00")
+};
+
static int cz_probe(struct platform_device *pdev)
{
int ret;
struct snd_soc_card *card;
struct acp_platform_info *machine;
+ struct platform_device *reg;
+
+ reg = regulator_register_always_on(0, "fixed-1.8V",
+ acp_da7219_supplies,
+ ARRAY_SIZE(acp_da7219_supplies),
+ 1800000);
+ if (!reg)
+ return -ENOMEM;
machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
GFP_KERNEL);
--
2.18.0.203.gfac676dfb9-goog
next prev parent reply other threads:[~2018-07-18 0:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180718004909.213735-1-djkurtz@chromium.org>
2018-07-18 0:49 ` [PATCH 1/2] regulator: allow drivers in modules to register fixed regulators Daniel Kurtz
2018-07-18 10:42 ` Mark Brown
2018-07-18 0:49 ` Daniel Kurtz [this message]
2018-07-18 10:46 ` [PATCH 2/2] ASoC: AMD: Add an always on fixed 1.8V regulator for da7219 VDDIO Mark Brown
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