From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,UNWANTED_LANGUAGE_BODY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 699BFC54E8D for ; Mon, 11 May 2020 13:25:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B95A206B7 for ; Mon, 11 May 2020 13:25:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729573AbgEKNZx (ORCPT ); Mon, 11 May 2020 09:25:53 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:50918 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726934AbgEKNZv (ORCPT ); Mon, 11 May 2020 09:25:51 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: sre) with ESMTPSA id CA4942A159C Received: by jupiter.universe (Postfix, from userid 1000) id DD984480102; Mon, 11 May 2020 15:25:45 +0200 (CEST) From: Sebastian Reichel To: Support Opensource , Liam Girdwood , Mark Brown Cc: Adam Thomson , Jaroslav Kysela , Takashi Iwai , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, kernel@collabora.com, Sebastian Reichel Subject: [PATCHv3 2/5] ASoC: da7213: Add regulator support Date: Mon, 11 May 2020 15:25:41 +0200 Message-Id: <20200511132544.82364-3-sebastian.reichel@collabora.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200511132544.82364-1-sebastian.reichel@collabora.com> References: <20200511132544.82364-1-sebastian.reichel@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds support for most regulators of da7212 for improved power management. The only thing skipped was the speaker supply, which has some undocumented dependencies. It's supposed to be either always-enabled or always-disabled. Reviewed-by: Adam Thomson Signed-off-by: Sebastian Reichel --- .../devicetree/bindings/sound/da7213.txt | 4 + sound/soc/codecs/da7213.c | 79 ++++++++++++++++++- sound/soc/codecs/da7213.h | 9 +++ 3 files changed, 91 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/sound/da7213.txt b/Documentation/devicetree/bindings/sound/da7213.txt index 69ed23b25e25..94584c96c4ae 100644 --- a/Documentation/devicetree/bindings/sound/da7213.txt +++ b/Documentation/devicetree/bindings/sound/da7213.txt @@ -21,6 +21,10 @@ Optional properties: - dlg,dmic-clkrate : DMIC clock frequency (Hz). [<1500000>, <3000000>] + - VDDA-supply : Regulator phandle for Analogue power supply + - VDDMIC-supply : Regulator phandle for Mic Bias + - VDDIO-supply : Regulator phandle for I/O power supply + ====== Example: diff --git a/sound/soc/codecs/da7213.c b/sound/soc/codecs/da7213.c index aff306bb58df..0359249118d0 100644 --- a/sound/soc/codecs/da7213.c +++ b/sound/soc/codecs/da7213.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -806,6 +807,11 @@ static int da7213_dai_event(struct snd_soc_dapm_widget *w, */ static const struct snd_soc_dapm_widget da7213_dapm_widgets[] = { + /* + * Power Supply + */ + SND_SOC_DAPM_REGULATOR_SUPPLY("VDDMIC", 0, 0), + /* * Input & Output */ @@ -932,6 +938,9 @@ static const struct snd_soc_dapm_route da7213_audio_map[] = { /* Dest Connecting Widget source */ /* Input path */ + {"Mic Bias 1", NULL, "VDDMIC"}, + {"Mic Bias 2", NULL, "VDDMIC"}, + {"MIC1", NULL, "Mic Bias 1"}, {"MIC2", NULL, "Mic Bias 2"}, @@ -1691,6 +1700,8 @@ static int da7213_probe(struct snd_soc_component *component) { struct da7213_priv *da7213 = snd_soc_component_get_drvdata(component); + pm_runtime_get_sync(component->dev); + /* Default to using ALC auto offset calibration mode. */ snd_soc_component_update_bits(component, DA7213_ALC_CTRL1, DA7213_ALC_CALIB_MODE_MAN, 0); @@ -1811,6 +1822,8 @@ static int da7213_probe(struct snd_soc_component *component) DA7213_DMIC_CLK_RATE_MASK, dmic_cfg); } + pm_runtime_put_sync(component->dev); + /* Check if MCLK provided */ da7213->mclk = devm_clk_get(component->dev, "mclk"); if (IS_ERR(da7213->mclk)) { @@ -1848,11 +1861,22 @@ static const struct regmap_config da7213_regmap_config = { .cache_type = REGCACHE_RBTREE, }; +static void da7213_power_off(void *data) +{ + struct da7213_priv *da7213 = data; + regulator_bulk_disable(DA7213_NUM_SUPPLIES, da7213->supplies); +} + +static const char *da7213_supply_names[DA7213_NUM_SUPPLIES] = { + [DA7213_SUPPLY_VDDA] = "VDDA", + [DA7213_SUPPLY_VDDIO] = "VDDIO", +}; + static int da7213_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct da7213_priv *da7213; - int ret; + int i, ret; da7213 = devm_kzalloc(&i2c->dev, sizeof(*da7213), GFP_KERNEL); if (!da7213) @@ -1860,6 +1884,25 @@ static int da7213_i2c_probe(struct i2c_client *i2c, i2c_set_clientdata(i2c, da7213); + /* Get required supplies */ + for (i = 0; i < DA7213_NUM_SUPPLIES; ++i) + da7213->supplies[i].supply = da7213_supply_names[i]; + + ret = devm_regulator_bulk_get(&i2c->dev, DA7213_NUM_SUPPLIES, + da7213->supplies); + if (ret) { + dev_err(&i2c->dev, "Failed to get supplies: %d\n", ret); + return ret; + } + + ret = regulator_bulk_enable(DA7213_NUM_SUPPLIES, da7213->supplies); + if (ret < 0) + return ret; + + ret = devm_add_action_or_reset(&i2c->dev, da7213_power_off, da7213); + if (ret < 0) + return ret; + da7213->regmap = devm_regmap_init_i2c(i2c, &da7213_regmap_config); if (IS_ERR(da7213->regmap)) { ret = PTR_ERR(da7213->regmap); @@ -1867,6 +1910,11 @@ static int da7213_i2c_probe(struct i2c_client *i2c, return ret; } + pm_runtime_set_autosuspend_delay(&i2c->dev, 100); + pm_runtime_use_autosuspend(&i2c->dev); + pm_runtime_set_active(&i2c->dev); + pm_runtime_enable(&i2c->dev); + ret = devm_snd_soc_register_component(&i2c->dev, &soc_component_dev_da7213, &da7213_dai, 1); if (ret < 0) { @@ -1876,6 +1924,34 @@ static int da7213_i2c_probe(struct i2c_client *i2c, return ret; } +static int __maybe_unused da7213_runtime_suspend(struct device *dev) +{ + struct da7213_priv *da7213 = dev_get_drvdata(dev); + + regcache_cache_only(da7213->regmap, true); + regcache_mark_dirty(da7213->regmap); + regulator_bulk_disable(DA7213_NUM_SUPPLIES, da7213->supplies); + + return 0; +} + +static int __maybe_unused da7213_runtime_resume(struct device *dev) +{ + struct da7213_priv *da7213 = dev_get_drvdata(dev); + int ret; + + ret = regulator_bulk_enable(DA7213_NUM_SUPPLIES, da7213->supplies); + if (ret < 0) + return ret; + regcache_cache_only(da7213->regmap, false); + regcache_sync(da7213->regmap); + return 0; +} + +static const struct dev_pm_ops da7213_pm = { + SET_RUNTIME_PM_OPS(da7213_runtime_suspend, da7213_runtime_resume, NULL) +}; + static const struct i2c_device_id da7213_i2c_id[] = { { "da7213", 0 }, { } @@ -1888,6 +1964,7 @@ static struct i2c_driver da7213_i2c_driver = { .name = "da7213", .of_match_table = of_match_ptr(da7213_of_match), .acpi_match_table = ACPI_PTR(da7213_acpi_match), + .pm = &da7213_pm, }, .probe = da7213_i2c_probe, .id_table = da7213_i2c_id, diff --git a/sound/soc/codecs/da7213.h b/sound/soc/codecs/da7213.h index 3250a3821fcc..3890829dfb6e 100644 --- a/sound/soc/codecs/da7213.h +++ b/sound/soc/codecs/da7213.h @@ -12,6 +12,7 @@ #include #include +#include #include /* @@ -521,9 +522,17 @@ enum da7213_sys_clk { DA7213_SYSCLK_PLL_32KHZ }; +/* Regulators */ +enum da7213_supplies { + DA7213_SUPPLY_VDDA = 0, + DA7213_SUPPLY_VDDIO, + DA7213_NUM_SUPPLIES, +}; + /* Codec private data */ struct da7213_priv { struct regmap *regmap; + struct regulator_bulk_data supplies[DA7213_NUM_SUPPLIES]; struct clk *mclk; unsigned int mclk_rate; int clk_src; -- 2.26.2