From patchwork Wed Apr 5 10:07:50 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Fitzgerald X-Patchwork-Id: 9663647 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8D445602B8 for ; Wed, 5 Apr 2017 10:10:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 640922859A for ; Wed, 5 Apr 2017 10:10:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 56F0F285AB; Wed, 5 Apr 2017 10:10:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D9AD52859A for ; Wed, 5 Apr 2017 10:10:51 +0000 (UTC) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 499E82670FC; Wed, 5 Apr 2017 12:08:51 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 2263A2670EC; Wed, 5 Apr 2017 12:08:49 +0200 (CEST) Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by alsa0.perex.cz (Postfix) with ESMTP id 5909B26702B for ; Wed, 5 Apr 2017 12:08:16 +0200 (CEST) Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v359xTtx014976; Wed, 5 Apr 2017 05:08:15 -0500 Authentication-Results: ppops.net; spf=none smtp.mailfrom=rf@opensource.wolfsonmicro.com Received: from mail2.cirrus.com (mail1.cirrus.com [141.131.3.20]) by mx0b-001ae601.pphosted.com with ESMTP id 29m61thx7j-1; Wed, 05 Apr 2017 05:08:15 -0500 Received: from EX17.ad.cirrus.com (unknown [172.20.9.81]) by mail2.cirrus.com (Postfix) with ESMTP id CDCDB6121AE5; Wed, 5 Apr 2017 05:08:14 -0500 (CDT) Received: from imbe.wolfsonmicro.main (198.61.95.81) by EX17.ad.cirrus.com (172.20.9.81) with Microsoft SMTP Server id 14.3.301.0; Wed, 5 Apr 2017 11:08:13 +0100 Received: from rf-debian.ad.cirrus.com (rf-debian.ad.cirrus.com [198.90.223.7]) by imbe.wolfsonmicro.main (8.14.4/8.14.4) with ESMTP id v35A7PUX000822; Wed, 5 Apr 2017 11:07:26 +0100 From: Richard Fitzgerald To: , , , , , , Date: Wed, 5 Apr 2017 11:07:50 +0100 Message-ID: <1491386884-30689-3-git-send-email-rf@opensource.wolfsonmicro.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1491386884-30689-1-git-send-email-rf@opensource.wolfsonmicro.com> References: <1491386884-30689-1-git-send-email-rf@opensource.wolfsonmicro.com> MIME-Version: 1.0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1702020001 definitions=main-1704050089 Cc: linux-gpio@vger.kernel.org, alsa-devel@alsa-project.org, patches@opensource.wolfsonmicro.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [alsa-devel] [PATCH 02/16] mfd: madera: Add common support for Cirrus Logic Madera codecs X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP This adds the generic core support for Cirrus Logic "Madera" class codecs. These are complex audio codec SoCs with a variety of digital and analogue I/O, onboard audio processing and DSPs, and other features. These codecs are all based off a common set of hardware IP so can be supported by a core of common code (with a few minor device-to-device variations). Signed-off-by: Charles Keepax Signed-off-by: Nikesh Oswal Signed-off-by: Richard Fitzgerald --- Documentation/devicetree/bindings/mfd/madera.txt | 79 +++ MAINTAINERS | 3 + drivers/mfd/Kconfig | 23 + drivers/mfd/Makefile | 4 + drivers/mfd/madera-core.c | 689 +++++++++++++++++++++++ drivers/mfd/madera-i2c.c | 130 +++++ drivers/mfd/madera-spi.c | 131 +++++ drivers/mfd/madera.h | 52 ++ include/linux/mfd/madera/core.h | 175 ++++++ include/linux/mfd/madera/pdata.h | 88 +++ 10 files changed, 1374 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/madera.txt create mode 100644 drivers/mfd/madera-core.c create mode 100644 drivers/mfd/madera-i2c.c create mode 100644 drivers/mfd/madera-spi.c create mode 100644 drivers/mfd/madera.h create mode 100644 include/linux/mfd/madera/core.h create mode 100644 include/linux/mfd/madera/pdata.h diff --git a/Documentation/devicetree/bindings/mfd/madera.txt b/Documentation/devicetree/bindings/mfd/madera.txt new file mode 100644 index 0000000..a6c3260 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/madera.txt @@ -0,0 +1,79 @@ +Cirrus Logic Madera class audio codecs multi-function device + +These devices are audio SoCs with extensive digital capabilities and a range +of analogue I/O. + +See also the child driver bindings in: +bindings/extcon/extcon-madera.txt +bindings/gpio/gpio-madera.txt +bindings/interrupt-controller/cirrus,madera.txt +bindings/pinctrl/cirrus,madera-pinctrl.txt +bindings/regulator/madera-ldo1.txt +bindings/regulator/madera-micsupp.txt +bindings/sound/madera.txt + +Required properties: + + - compatible : One of the following chip-specific strings: + "cirrus,cs47l35" + "cirrus,cs47l85" + "cirrus,cs47l90" + "cirrus,cs47l91" + "cirrus,wm1840" + + - reg : I2C slave address when connected using I2C, chip select number when + using SPI. + + - DCVDD-supply : Power supply for the device as defined in + bindings/regulator/regulator.txt + Mandatory on CS47L35, CS47L90, CS47L91 + Optional on CS47L85, WM1840 + + - AVDD-supply, DBVDD1-supply, DBVDD2-supply, CPVDD1-supply, CPVDD2-supply : + Power supplies for the device + + - DBVDD3-supply, DBVDD4-supply : Power supplies for the device + (CS47L85, CS47L90, CS47L91, WM1840) + + - SPKVDDL-supply, SPKVDDR-supply : Power supplies for the device + (CS47L85, WM1840) + + - SPKVDD-supply : Power supply for the device + (CS47L35) + +Optional properties: + + - MICVDD-supply : Power supply, only need to be specified if + powered externally + + - reset-gpios : One entry specifying the GPIO controlling /RESET. + As defined in bindings/gpio.txt. + Although optional, it is strongly recommended to use a hardware reset + + - MICBIASx : Initial data for the MICBIAS regulators, as covered in + Documentation/devicetree/bindings/regulator/regulator.txt. + One for each MICBIAS generator (MICBIAS1, MICBIAS2, ...) + (all codecs) + + One for each output pin (MICBIAS1A, MIBCIAS1B, MICBIAS2A, ...) + (all except CS47L85, WM1840) + + The following following additional property is supported for the generator + nodes: + - cirrus,ext-cap : Set to 1 if the MICBIAS has external decoupling + capacitors attached. + +Example: + +codec: cs47l85@0 { + compatible = "cirrus,cs47l85"; + reg = <0>; + + reset-gpios = <&gpio 0>; + + MICBIAS1 { + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <3300000>; + cirrus,ext-cap = <1>; + }; +}; diff --git a/MAINTAINERS b/MAINTAINERS index 02995c9..d28e53f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3266,7 +3266,10 @@ L: patches@opensource.wolfsonmicro.com T: git https://github.com/CirrusLogic/linux-drivers.git W: https://github.com/CirrusLogic/linux-drivers/wiki S: Supported +F: Documentation/devicetree/bindings/mfd/madera.txt F: include/linux/mfd/madera/* +F: drivers/mfd/madera* +F: drivers/mfd/cs47l* CLEANCACHE API M: Konrad Rzeszutek Wilk diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index ce3a918..f0f9979 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -203,6 +203,29 @@ config MFD_CROS_EC_SPI response time cannot be guaranteed, we support ignoring 'pre-amble' bytes before the response actually starts. +config MFD_MADERA + bool + select REGMAP + select MFD_CORE + +config MFD_MADERA_I2C + tristate "Cirrus Logic Madera codecs with I2C" + select MFD_MADERA + select REGMAP_I2C + depends on I2C + help + Support for the Cirrus Logic Madera platform audio SoC + core functionality controlled via I2C. + +config MFD_MADERA_SPI + tristate "Cirrus Logic Madera codecs with SPI" + select MFD_MADERA + select REGMAP_SPI + depends on SPI_MASTER + help + Support for the Cirrus Logic Madera platform audio SoC + core functionality controlled via SPI. + config MFD_ASIC3 bool "Compaq ASIC3" depends on GPIOLIB && ARM diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index fa86dbe..c41f6c9 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -72,6 +72,10 @@ obj-$(CONFIG_MFD_WM8350_I2C) += wm8350-i2c.o wm8994-objs := wm8994-core.o wm8994-irq.o wm8994-regmap.o obj-$(CONFIG_MFD_WM8994) += wm8994.o +obj-$(CONFIG_MFD_MADERA) += madera-core.o +obj-$(CONFIG_MFD_MADERA_I2C) += madera-i2c.o +obj-$(CONFIG_MFD_MADERA_SPI) += madera-spi.o + obj-$(CONFIG_TPS6105X) += tps6105x.o obj-$(CONFIG_TPS65010) += tps65010.o obj-$(CONFIG_TPS6507X) += tps6507x.o diff --git a/drivers/mfd/madera-core.c b/drivers/mfd/madera-core.c new file mode 100644 index 0000000..ab5fe9b --- /dev/null +++ b/drivers/mfd/madera-core.c @@ -0,0 +1,689 @@ +/* + * Core MFD support for Cirrus Logic Madera codecs + * + * Copyright 2015-2017 Cirrus Logic + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "madera.h" + +#define CS47L35_SILICON_ID 0x6360 +#define CS47L85_SILICON_ID 0x6338 +#define CS47L90_SILICON_ID 0x6364 + +#define MADERA_32KZ_MCLK2 1 + +static const char * const madera_core_supplies[] = { + "AVDD", + "DBVDD1", +}; + +static const struct mfd_cell madera_ldo1_devs[] = { + { .name = "madera-ldo1", .of_compatible = "cirrus,madera-ldo1" }, +}; + +static const struct mfd_cell cs47l35_devs[] = { + { .name = "madera-pinctrl", .of_compatible = "cirrus,madera-pinctrl" }, + { .name = "madera-irq", }, + { .name = "madera-micsupp", .of_compatible = "cirrus,madera-micsupp" }, + { .name = "madera-gpio", .of_compatible = "cirrus,madera-gpio" }, + { .name = "madera-extcon", .of_compatible = "cirrus,madera-extcon" }, + { .name = "cs47l35-codec", .of_compatible = "cirrus,cs47l35-codec" }, + { .name = "madera-haptics", .of_compatible = "cirrus,madera-haptics" }, +}; + +static const struct mfd_cell cs47l85_devs[] = { + { .name = "madera-pinctrl", .of_compatible = "cirrus,madera-pinctrl" }, + { .name = "madera-irq", }, + { .name = "madera-micsupp", .of_compatible = "cirrus,madera-micsupp" }, + { .name = "madera-gpio", .of_compatible = "cirrus,madera-gpio" }, + { .name = "madera-extcon", .of_compatible = "cirrus,madera-extcon" }, + { .name = "cs47l85-codec", .of_compatible = "cirrus,cs47l85-codec" }, + { .name = "madera-haptics", .of_compatible = "cirrus,madera-haptics" }, +}; + +static const struct mfd_cell cs47l90_devs[] = { + { .name = "madera-pinctrl", .of_compatible = "cirrus,madera-pinctrl" }, + { .name = "madera-irq", }, + { .name = "madera-micsupp", .of_compatible = "cirrus,madera-micsupp" }, + { .name = "madera-gpio", .of_compatible = "cirrus,madera-gpio" }, + { .name = "madera-extcon", .of_compatible = "cirrus,madera-extcon" }, + { .name = "cs47l90-codec", .of_compatible = "cirrus,cs47l90-codec" }, + { .name = "madera-haptics", .of_compatible = "cirrus,madera-haptics" }, +}; + +const char *madera_name_from_type(enum madera_type type) +{ + switch (type) { + case CS47L35: + return "CS47L35"; + case CS47L85: + return "CS47L85"; + case CS47L90: + return "CS47L90"; + case CS47L91: + return "CS47L91"; + case WM1840: + return "WM1840"; + default: + return "Unknown"; + } +} +EXPORT_SYMBOL_GPL(madera_name_from_type); + +#define MADERA_BOOT_POLL_MAX_INTERVAL_US 5000 +#define MADERA_BOOT_POLL_TIMEOUT_US 25000 + +static int madera_wait_for_boot(struct madera *madera) +{ + unsigned int val; + int ret; + + /* + * We can't use an interrupt as we need to runtime resume to do so, + * so we poll the status bit. This won't race with the interrupt + * handler because it will be blocked on runtime resume. + */ + ret = regmap_read_poll_timeout(madera->regmap, + MADERA_IRQ1_RAW_STATUS_1, + val, + (val & MADERA_BOOT_DONE_STS1), + MADERA_BOOT_POLL_MAX_INTERVAL_US, + MADERA_BOOT_POLL_TIMEOUT_US); + /* + * BOOT_DONE defaults to unmasked on boot so we must ack it. + * Do this unconditionally to avoid interrupt storms + */ + regmap_write(madera->regmap, MADERA_IRQ1_STATUS_1, + MADERA_BOOT_DONE_EINT1); + + if (ret) + dev_err(madera->dev, "Polling BOOT_DONE_STS failed: %d\n", ret); + + pm_runtime_mark_last_busy(madera->dev); + + return ret; +} + +static int madera_soft_reset(struct madera *madera) +{ + int ret; + + ret = regmap_write(madera->regmap, MADERA_SOFTWARE_RESET, 0); + if (ret != 0) { + dev_err(madera->dev, "Failed to soft reset device: %d\n", ret); + return ret; + } + usleep_range(1000, 2000); + + return 0; +} + +static void madera_enable_hard_reset(struct madera *madera) +{ + if (madera->reset_gpio) + gpiod_set_value_cansleep(madera->reset_gpio, 0); +} + +static void madera_disable_hard_reset(struct madera *madera) +{ + if (madera->reset_gpio) { + gpiod_set_value_cansleep(madera->reset_gpio, 1); + usleep_range(1000, 2000); + } +} + +#ifdef CONFIG_PM +static int madera_runtime_resume(struct device *dev) +{ + struct madera *madera = dev_get_drvdata(dev); + int ret; + + dev_dbg(madera->dev, "Leaving sleep mode\n"); + + ret = regulator_enable(madera->dcvdd); + if (ret) { + dev_err(madera->dev, "Failed to enable DCVDD: %d\n", ret); + return ret; + } + + regcache_cache_only(madera->regmap, false); + regcache_cache_only(madera->regmap_32bit, false); + + ret = madera_wait_for_boot(madera); + if (ret) + goto err; + + ret = regcache_sync(madera->regmap); + if (ret) { + dev_err(madera->dev, + "Failed to restore 16-bit register cache\n"); + goto err; + } + + ret = regcache_sync(madera->regmap_32bit); + if (ret) { + dev_err(madera->dev, + "Failed to restore 32-bit register cache\n"); + goto err; + } + + return 0; + +err: + regcache_cache_only(madera->regmap_32bit, true); + regcache_cache_only(madera->regmap, true); + regulator_disable(madera->dcvdd); + + return ret; +} + +static int madera_runtime_suspend(struct device *dev) +{ + struct madera *madera = dev_get_drvdata(dev); + + dev_dbg(madera->dev, "Entering sleep mode\n"); + + regcache_cache_only(madera->regmap, true); + regcache_mark_dirty(madera->regmap); + regcache_cache_only(madera->regmap_32bit, true); + regcache_mark_dirty(madera->regmap_32bit); + + regulator_disable(madera->dcvdd); + + return 0; +} +#endif + +const struct dev_pm_ops madera_pm_ops = { + SET_RUNTIME_PM_OPS(madera_runtime_suspend, + madera_runtime_resume, + NULL) +}; +EXPORT_SYMBOL_GPL(madera_pm_ops); + +unsigned int madera_get_num_micbias(struct madera *madera) +{ + + switch (madera->type) { + case CS47L35: + return 2; + case CS47L85: + case WM1840: + return 4; + case CS47L90: + case CS47L91: + return 2; + default: + dev_warn(madera->dev, "No micbias known for codec %s\n", + madera_name_from_type(madera->type)); + return 0; + } +} +EXPORT_SYMBOL_GPL(madera_get_num_micbias); + +unsigned int madera_get_num_childbias(struct madera *madera, + unsigned int micbias) +{ + /* + * micbias argument reserved for future codecs that don't + * have the same number of children on each micbias + */ + + switch (madera->type) { + case CS47L35: + return 2; + case CS47L85: + case WM1840: + return 0; + case CS47L90: + case CS47L91: + return 4; + default: + dev_warn(madera->dev, "No child micbias known for codec %s\n", + madera_name_from_type(madera->type)); + return 0; + } +} +EXPORT_SYMBOL_GPL(madera_get_num_childbias); + +#ifdef CONFIG_OF +const struct of_device_id madera_of_match[] = { + { .compatible = "cirrus,cs47l35", .data = (void *)CS47L35 }, + { .compatible = "cirrus,cs47l85", .data = (void *)CS47L85 }, + { .compatible = "cirrus,cs47l90", .data = (void *)CS47L90 }, + { .compatible = "cirrus,cs47l91", .data = (void *)CS47L91 }, + { .compatible = "cirrus,wm1840", .data = (void *)WM1840 }, + {}, +}; +EXPORT_SYMBOL_GPL(madera_of_match); + +unsigned long madera_of_get_type(struct device *dev) +{ + const struct of_device_id *id = of_match_device(madera_of_match, dev); + + if (id) + return (unsigned long)id->data; + else + return 0; +} +EXPORT_SYMBOL_GPL(madera_of_get_type); +#endif + +static int madera_prop_get_core_pdata(struct madera *madera) +{ + int ret; + + madera->reset_gpio = devm_gpiod_get_optional(madera->dev, + "reset", + GPIOD_OUT_LOW); + if (IS_ERR(madera->reset_gpio)) { + ret = PTR_ERR(madera->reset_gpio); + + if (ret == -EPROBE_DEFER) + return ret; + else if ((ret < 0) && (ret != -EINVAL)) + dev_warn(madera->dev, + "DT property reset-gpio is malformed: %d\n", + ret); + } + + return 0; +} + +static void madera_configure_micbias(struct madera *madera) +{ + unsigned int num_micbias = madera_get_num_micbias(madera); + struct madera_micbias_pdata *pdata; + struct regulator_init_data *init_data; + unsigned int num_child_micbias; + unsigned int val, mask, reg; + int i, j, ret; + + for (i = 0; i < num_micbias; i++) { + pdata = &madera->pdata.micbias[i]; + init_data = &pdata->init_data; + + if (!init_data->constraints.max_uV && + !init_data->constraints.valid_ops_mask) + continue; /* pdata not set */ + + /* Apply default for bypass mode */ + if (!init_data->constraints.max_uV) + init_data->constraints.max_uV = 2800; + + val = (init_data->constraints.max_uV - 1500000) / 100000; + val <<= MADERA_MICB1_LVL_SHIFT; + + mask = MADERA_MICB1_LVL_MASK | MADERA_MICB1_EXT_CAP | + MADERA_MICB1_BYPASS | MADERA_MICB1_RATE; + + if (pdata->ext_cap) + val |= MADERA_MICB1_EXT_CAP; + + /* if no child biases the discharge is set in the parent */ + num_child_micbias = madera_get_num_childbias(madera, i + 1); + if (num_child_micbias == 0) { + mask |= MADERA_MICB1_DISCH; + + switch (init_data->constraints.active_discharge) { + case REGULATOR_ACTIVE_DISCHARGE_ENABLE: + val |= MADERA_MICB1_DISCH; + break; + default: + break; + } + } + + if (init_data->constraints.soft_start) + val |= MADERA_MICB1_RATE; + + if (init_data->constraints.valid_ops_mask & + REGULATOR_CHANGE_BYPASS) + val |= MADERA_MICB1_BYPASS; + + reg = MADERA_MIC_BIAS_CTRL_1 + i; + ret = regmap_update_bits(madera->regmap, reg, mask, val); + if (ret) + dev_warn(madera->dev, "Failed to write 0x%x (%d)\n", + reg, ret); + + dev_dbg(madera->dev, "Set MICBIAS_CTRL_%d mask=0x%x val=0x%x\n", + i + 1, mask, val); + + /* Configure the child micbias pins */ + val = 0; + mask = 0; + for (j = 0; j < num_child_micbias; j++) { + mask |= (MADERA_MICB1A_DISCH << (j * 4)); + + init_data = &pdata->pin[j].init_data; + switch (init_data->constraints.active_discharge) { + case REGULATOR_ACTIVE_DISCHARGE_ENABLE: + val |= (MADERA_MICB1A_DISCH << (j * 4)); + break; + default: + break; + } + } + + if (mask) { + reg = MADERA_MIC_BIAS_CTRL_5 + (i * 2); + ret = regmap_update_bits(madera->regmap, reg, mask, val); + if (ret) + dev_warn(madera->dev, + "Failed to write 0x%x (%d)\n", + reg, ret); + + dev_dbg(madera->dev, + "Set MICBIAS_CTRL_%d mask=0x%x val=0x%x\n", + i + 5, mask, val); + } + } +} + +int madera_dev_init(struct madera *madera) +{ + struct device *dev = madera->dev; + const char *name; + unsigned int hwid; + int (*patch_fn)(struct madera *) = NULL; + const struct mfd_cell *mfd_devs; + int n_devs = 0; + int i, ret; + + dev_set_drvdata(madera->dev, madera); + BLOCKING_INIT_NOTIFIER_HEAD(&madera->notifier); + + if (dev_get_platdata(madera->dev)) { + memcpy(&madera->pdata, dev_get_platdata(madera->dev), + sizeof(madera->pdata)); + + /* We use 0 in pdata to indicate a GPIO has not been set */ + if (madera->pdata.reset > 0) { + /* Start out with /RESET asserted */ + ret = devm_gpio_request_one(madera->dev, + madera->pdata.reset, + GPIOF_DIR_OUT | GPIOF_INIT_LOW, + "madera reset"); + if (ret) { + dev_err(dev, "Failed to request /RESET: %d\n", + ret); + return ret; + } + + madera->reset_gpio = gpio_to_desc(madera->pdata.reset); + } + } else { + ret = madera_prop_get_core_pdata(madera); + if (ret) + return ret; + } + + if (!madera->reset_gpio) + dev_warn(madera->dev, + "Running without reset GPIO is not recommended\n"); + + regcache_cache_only(madera->regmap, true); + regcache_cache_only(madera->regmap_32bit, true); + + for (i = 0; i < ARRAY_SIZE(madera_core_supplies); i++) + madera->core_supplies[i].supply = madera_core_supplies[i]; + + madera->num_core_supplies = ARRAY_SIZE(madera_core_supplies); + + switch (madera->type) { + case CS47L35: + case CS47L90: + case CS47L91: + break; + case CS47L85: + case WM1840: + ret = mfd_add_devices(madera->dev, PLATFORM_DEVID_NONE, + madera_ldo1_devs, + ARRAY_SIZE(madera_ldo1_devs), + NULL, 0, NULL); + if (ret != 0) { + dev_err(dev, "Failed to add LDO1 child: %d\n", ret); + return ret; + } + break; + default: + dev_err(madera->dev, "Unknown device type %d\n", madera->type); + return -ENODEV; + } + + ret = devm_regulator_bulk_get(dev, madera->num_core_supplies, + madera->core_supplies); + if (ret) { + dev_err(dev, "Failed to request core supplies: %d\n", ret); + goto err_devs; + } + + /* + * Don't use devres here because the only device we have to get + * against is the MFD device and DCVDD will likely be supplied by + * one of its children. Meaning that the regulator will be + * destroyed by the time devres calls regulator put. + */ + madera->dcvdd = regulator_get_exclusive(madera->dev, "DCVDD"); + if (IS_ERR(madera->dcvdd)) { + ret = PTR_ERR(madera->dcvdd); + dev_err(dev, "Failed to request DCVDD: %d\n", ret); + goto err_devs; + } + + ret = regulator_bulk_enable(madera->num_core_supplies, + madera->core_supplies); + if (ret) { + dev_err(dev, "Failed to enable core supplies: %d\n", ret); + goto err_dcvdd; + } + + ret = regulator_enable(madera->dcvdd); + if (ret) { + dev_err(dev, "Failed to enable DCVDD: %d\n", ret); + goto err_enable; + } + + madera_disable_hard_reset(madera); + + regcache_cache_only(madera->regmap, false); + regcache_cache_only(madera->regmap_32bit, false); + + /* + * Verify that this is a chip we know about before we + * starting doing any writes to its registers + */ + ret = regmap_read(madera->regmap, MADERA_SOFTWARE_RESET, &hwid); + if (ret) { + dev_err(dev, "Failed to read ID register: %d\n", ret); + goto err_reset; + } + + switch (hwid) { + case CS47L35_SILICON_ID: + case CS47L85_SILICON_ID: + case CS47L90_SILICON_ID: + break; + default: + dev_err(madera->dev, "Unknown device ID: %x\n", hwid); + ret = -EINVAL; + goto err_reset; + } + + /* If we don't have a reset GPIO use a soft reset */ + if (!madera->reset_gpio) { + ret = madera_soft_reset(madera); + if (ret) + goto err_reset; + } + + ret = madera_wait_for_boot(madera); + if (ret) { + dev_err(madera->dev, "Device failed initial boot: %d\n", ret); + goto err_reset; + } + + ret = regmap_read(madera->regmap, MADERA_HARDWARE_REVISION, + &madera->rev); + if (ret) { + dev_err(dev, "Failed to read revision register: %d\n", ret); + goto err_reset; + } + madera->rev &= MADERA_HW_REVISION_MASK; + + name = madera_name_from_type(madera->type); + + switch (hwid) { + case CS47L35_SILICON_ID: + if (IS_ENABLED(CONFIG_MFD_CS47L35)) { + switch (madera->type) { + case CS47L35: + patch_fn = cs47l35_patch; + mfd_devs = cs47l35_devs; + n_devs = ARRAY_SIZE(cs47l35_devs); + break; + default: + break; + } + } + break; + case CS47L85_SILICON_ID: + if (IS_ENABLED(CONFIG_MFD_CS47L85)) { + switch (madera->type) { + case CS47L85: + case WM1840: + patch_fn = cs47l85_patch; + mfd_devs = cs47l85_devs; + n_devs = ARRAY_SIZE(cs47l85_devs); + break; + default: + break; + } + } + break; + case CS47L90_SILICON_ID: + if (IS_ENABLED(CONFIG_MFD_CS47L90)) { + switch (madera->type) { + case CS47L90: + case CS47L91: + patch_fn = cs47l90_patch; + mfd_devs = cs47l90_devs; + n_devs = ARRAY_SIZE(cs47l90_devs); + break; + default: + break; + } + } + break; + default: + break; + } + + if (!n_devs) { + dev_err(madera->dev, "Device ID 0x%x not a %s\n", hwid, name); + ret = -ENODEV; + goto err_reset; + } + + dev_info(dev, "%s silicon revision %d\n", name, madera->rev); + + /* Apply hardware patch */ + if (patch_fn) { + ret = patch_fn(madera); + if (ret) { + dev_err(madera->dev, "Failed to apply patch %d\n", ret); + goto err_reset; + } + } + + /* Init 32k clock sourced from MCLK2 */ + ret = regmap_update_bits(madera->regmap, + MADERA_CLOCK_32K_1, + MADERA_CLK_32K_ENA_MASK | MADERA_CLK_32K_SRC_MASK, + MADERA_CLK_32K_ENA | MADERA_32KZ_MCLK2); + if (ret) { + dev_err(madera->dev, "Failed to init 32k clock: %d\n", ret); + goto err_reset; + } + + madera_configure_micbias(madera); + + pm_runtime_set_active(madera->dev); + pm_runtime_enable(madera->dev); + pm_runtime_set_autosuspend_delay(madera->dev, 100); + pm_runtime_use_autosuspend(madera->dev); + + ret = mfd_add_devices(madera->dev, PLATFORM_DEVID_NONE, + mfd_devs, n_devs, + NULL, 0, NULL); + if (ret) { + dev_err(madera->dev, "Failed to add subdevices: %d\n", ret); + goto err_pm_runtime; + } + + return 0; + +err_pm_runtime: + pm_runtime_disable(madera->dev); +err_reset: + madera_enable_hard_reset(madera); + regulator_disable(madera->dcvdd); +err_enable: + regulator_bulk_disable(madera->num_core_supplies, + madera->core_supplies); +err_dcvdd: + regulator_put(madera->dcvdd); +err_devs: + mfd_remove_devices(dev); + + return ret; +} +EXPORT_SYMBOL_GPL(madera_dev_init); + +int madera_dev_exit(struct madera *madera) +{ + /* Prevent any IRQs being serviced while we clean up */ + disable_irq(madera->irq); + + /* + * DCVDD could be supplied by a child node, we must disable it before + * removing the children, and prevent PM runtime from turning it back on + */ + pm_runtime_disable(madera->dev); + + regulator_disable(madera->dcvdd); + regulator_put(madera->dcvdd); + + mfd_remove_devices(madera->dev); + madera_enable_hard_reset(madera); + + regulator_bulk_disable(madera->num_core_supplies, + madera->core_supplies); + return 0; +} +EXPORT_SYMBOL_GPL(madera_dev_exit); diff --git a/drivers/mfd/madera-i2c.c b/drivers/mfd/madera-i2c.c new file mode 100644 index 0000000..8c90780 --- /dev/null +++ b/drivers/mfd/madera-i2c.c @@ -0,0 +1,130 @@ +/* + * I2C bus interface to Cirrus Logic Madera codecs + * + * Copyright 2015-2017 Cirrus Logic + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include "madera.h" + +static int madera_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct madera *madera; + const struct regmap_config *regmap_16bit_config = NULL; + const struct regmap_config *regmap_32bit_config = NULL; + unsigned long type; + int ret; + + if (i2c->dev.of_node) + type = madera_of_get_type(&i2c->dev); + else + type = id->driver_data; + + switch (type) { + case CS47L35: + if (IS_ENABLED(CONFIG_MFD_CS47L35)) { + regmap_16bit_config = &cs47l35_16bit_i2c_regmap; + regmap_32bit_config = &cs47l35_32bit_i2c_regmap; + } + break; + case CS47L85: + case WM1840: + if (IS_ENABLED(CONFIG_MFD_CS47L85)) { + regmap_16bit_config = &cs47l85_16bit_i2c_regmap; + regmap_32bit_config = &cs47l85_32bit_i2c_regmap; + } + break; + case CS47L90: + case CS47L91: + if (IS_ENABLED(CONFIG_MFD_CS47L90)) { + regmap_16bit_config = &cs47l90_16bit_i2c_regmap; + regmap_32bit_config = &cs47l90_32bit_i2c_regmap; + } + break; + default: + dev_err(&i2c->dev, + "Unknown Madera I2C device type %ld\n", type); + return -EINVAL; + } + + if (!regmap_16bit_config) { + dev_err(&i2c->dev, + "Kernel does not include support for %s\n", + madera_name_from_type(type)); + return -EINVAL; + } + + madera = devm_kzalloc(&i2c->dev, sizeof(*madera), GFP_KERNEL); + if (!madera) + return -ENOMEM; + + madera->regmap = devm_regmap_init_i2c(i2c, regmap_16bit_config); + if (IS_ERR(madera->regmap)) { + ret = PTR_ERR(madera->regmap); + dev_err(&i2c->dev, + "Failed to allocate 16-bit register map: %d\n", ret); + return ret; + } + + madera->regmap_32bit = devm_regmap_init_i2c(i2c, regmap_32bit_config); + if (IS_ERR(madera->regmap_32bit)) { + ret = PTR_ERR(madera->regmap_32bit); + dev_err(&i2c->dev, + "Failed to allocate 32-bit register map: %d\n", ret); + return ret; + } + + madera->type = type; + madera->dev = &i2c->dev; + madera->irq = i2c->irq; + + return madera_dev_init(madera); +} + +static int madera_i2c_remove(struct i2c_client *i2c) +{ + struct madera *madera = dev_get_drvdata(&i2c->dev); + + madera_dev_exit(madera); + return 0; +} + +static const struct i2c_device_id madera_i2c_id[] = { + { "cs47l35", CS47L35 }, + { "cs47l85", CS47L85 }, + { "cs47l90", CS47L90 }, + { "cs47l91", CS47L91 }, + { "wm1840", WM1840 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, madera_i2c_id); + +static struct i2c_driver madera_i2c_driver = { + .driver = { + .name = "madera", + .pm = &madera_pm_ops, + .of_match_table = of_match_ptr(madera_of_match), + }, + .probe = madera_i2c_probe, + .remove = madera_i2c_remove, + .id_table = madera_i2c_id, +}; + +module_i2c_driver(madera_i2c_driver); + +MODULE_DESCRIPTION("Madera I2C bus interface"); +MODULE_AUTHOR("Richard Fitzgerald "); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mfd/madera-spi.c b/drivers/mfd/madera-spi.c new file mode 100644 index 0000000..e7e13f0 --- /dev/null +++ b/drivers/mfd/madera-spi.c @@ -0,0 +1,131 @@ +/* + * SPI bus interface to Cirrus Logic Madera codecs + * + * Copyright 2015-2017 Cirrus Logic + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include "madera.h" + +static int madera_spi_probe(struct spi_device *spi) +{ + const struct spi_device_id *id = spi_get_device_id(spi); + struct madera *madera; + const struct regmap_config *regmap_16bit_config = NULL; + const struct regmap_config *regmap_32bit_config = NULL; + unsigned long type; + int ret; + + if (spi->dev.of_node) + type = madera_of_get_type(&spi->dev); + else + type = id->driver_data; + + switch (type) { + case CS47L35: + if (IS_ENABLED(CONFIG_MFD_CS47L35)) { + regmap_16bit_config = &cs47l35_16bit_spi_regmap; + regmap_32bit_config = &cs47l35_32bit_spi_regmap; + } + break; + case CS47L85: + case WM1840: + if (IS_ENABLED(CONFIG_MFD_CS47L85)) { + regmap_16bit_config = &cs47l85_16bit_spi_regmap; + regmap_32bit_config = &cs47l85_32bit_spi_regmap; + } + break; + case CS47L90: + case CS47L91: + if (IS_ENABLED(CONFIG_MFD_CS47L90)) { + regmap_16bit_config = &cs47l90_16bit_spi_regmap; + regmap_32bit_config = &cs47l90_32bit_spi_regmap; + } + break; + default: + dev_err(&spi->dev, + "Unknown Madera SPI device type %ld\n", type); + return -EINVAL; + } + + if (!regmap_16bit_config) { + dev_err(&spi->dev, + "Kernel does not include support for %s\n", + madera_name_from_type(type)); + return -EINVAL; + } + + madera = devm_kzalloc(&spi->dev, sizeof(*madera), GFP_KERNEL); + if (!madera) + return -ENOMEM; + + madera->regmap = devm_regmap_init_spi(spi, regmap_16bit_config); + if (IS_ERR(madera->regmap)) { + ret = PTR_ERR(madera->regmap); + dev_err(&spi->dev, + "Failed to allocate 16-bit register map: %d\n", ret); + return ret; + } + + madera->regmap_32bit = devm_regmap_init_spi(spi, regmap_32bit_config); + if (IS_ERR(madera->regmap_32bit)) { + ret = PTR_ERR(madera->regmap_32bit); + dev_err(&spi->dev, + "Failed to allocate 32-bit register map: %d\n", ret); + return ret; + } + + madera->type = type; + madera->dev = &spi->dev; + madera->irq = spi->irq; + + return madera_dev_init(madera); +} + +static int madera_spi_remove(struct spi_device *spi) +{ + struct madera *madera = spi_get_drvdata(spi); + + madera_dev_exit(madera); + return 0; +} + +static const struct spi_device_id madera_spi_ids[] = { + { "cs47l35", CS47L35 }, + { "cs47l85", CS47L85 }, + { "cs47l90", CS47L90 }, + { "cs47l91", CS47L91 }, + { "wm1840", WM1840 }, + { }, +}; +MODULE_DEVICE_TABLE(spi, madera_spi_ids); + +static struct spi_driver madera_spi_driver = { + .driver = { + .name = "madera", + .owner = THIS_MODULE, + .pm = &madera_pm_ops, + .of_match_table = of_match_ptr(madera_of_match), + }, + .probe = madera_spi_probe, + .remove = madera_spi_remove, + .id_table = madera_spi_ids, +}; + +module_spi_driver(madera_spi_driver); + +MODULE_DESCRIPTION("Madera SPI bus interface"); +MODULE_AUTHOR("Richard Fitzgerald "); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mfd/madera.h b/drivers/mfd/madera.h new file mode 100644 index 0000000..57f6add --- /dev/null +++ b/drivers/mfd/madera.h @@ -0,0 +1,52 @@ +/* + * madera.h -- MFD internals for Cirrus Logic Madera codecs + * + * Copyright 2015-2016 Cirrus Logic + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef MADERA_MFD_H +#define MADERA_MFD_H + +#include +#include + +struct madera; + +extern const struct dev_pm_ops madera_pm_ops; +extern const struct of_device_id madera_of_match[]; + +int madera_dev_init(struct madera *madera); +int madera_dev_exit(struct madera *madera); + +#ifdef CONFIG_OF +unsigned long madera_of_get_type(struct device *dev); +#else +static inline unsigned long madera_of_get_type(struct device *dev) +{ + return 0; +} +#endif + +extern const struct regmap_config cs47l35_16bit_spi_regmap; +extern const struct regmap_config cs47l35_32bit_spi_regmap; +extern const struct regmap_config cs47l35_16bit_i2c_regmap; +extern const struct regmap_config cs47l35_32bit_i2c_regmap; +int cs47l35_patch(struct madera *madera); + +extern const struct regmap_config cs47l85_16bit_spi_regmap; +extern const struct regmap_config cs47l85_32bit_spi_regmap; +extern const struct regmap_config cs47l85_16bit_i2c_regmap; +extern const struct regmap_config cs47l85_32bit_i2c_regmap; +int cs47l85_patch(struct madera *madera); + +extern const struct regmap_config cs47l90_16bit_spi_regmap; +extern const struct regmap_config cs47l90_32bit_spi_regmap; +extern const struct regmap_config cs47l90_16bit_i2c_regmap; +extern const struct regmap_config cs47l90_32bit_i2c_regmap; +int cs47l90_patch(struct madera *madera); + +#endif diff --git a/include/linux/mfd/madera/core.h b/include/linux/mfd/madera/core.h new file mode 100644 index 0000000..59b05f8 --- /dev/null +++ b/include/linux/mfd/madera/core.h @@ -0,0 +1,175 @@ +/* + * MFD internals for Cirrus Logic Madera codecs + * + * Copyright 2015-2017 Cirrus Logic + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef MADERA_CORE_H +#define MADERA_CORE_H + +#include +#include +#include +#include +#include +#include +#include +#include + +enum madera_type { + CS47L35 = 1, + CS47L85 = 2, + CS47L90 = 3, + CS47L91 = 4, + WM1840 = 7, +}; + +#define MADERA_MAX_CORE_SUPPLIES 2 +#define MADERA_MAX_GPIOS 40 + +#define CS47L35_NUM_GPIOS 16 +#define CS47L85_NUM_GPIOS 40 +#define CS47L90_NUM_GPIOS 38 + + +/* Notifier events */ +#define MADERA_NOTIFY_VOICE_TRIGGER 0x1 +#define MADERA_NOTIFY_HPDET 0x2 +#define MADERA_NOTIFY_MICDET 0x4 + +/* GPIO Function Definitions */ +#define MADERA_GP_FN_ALTERNATE 0x00 +#define MADERA_GP_FN_GPIO 0x01 +#define MADERA_GP_FN_DSP_GPIO 0x02 +#define MADERA_GP_FN_IRQ1 0x03 +#define MADERA_GP_FN_IRQ2 0x04 +#define MADERA_GP_FN_FLL1_CLOCK 0x10 +#define MADERA_GP_FN_FLL2_CLOCK 0x11 +#define MADERA_GP_FN_FLL3_CLOCK 0x12 +#define MADERA_GP_FN_FLLAO_CLOCK 0x13 +#define MADERA_GP_FN_FLL1_LOCK 0x18 +#define MADERA_GP_FN_FLL2_LOCK 0x19 +#define MADERA_GP_FN_FLL3_LOCK 0x1A +#define MADERA_GP_FN_FLLAO_LOCK 0x1B +#define MADERA_GP_FN_OPCLK_OUT 0x40 +#define MADERA_GP_FN_OPCLK_ASYNC_OUT 0x41 +#define MADERA_GP_FN_PWM1 0x48 +#define MADERA_GP_FN_PWM2 0x49 +#define MADERA_GP_FN_SPDIF_OUT 0x4C +#define MADERA_GP_FN_HEADPHONE_DET 0x50 +#define MADERA_GP_FN_MIC_DET 0x58 +#define MADERA_GP_FN_DRC1_SIGNAL_DETECT 0x80 +#define MADERA_GP_FN_DRC2_SIGNAL_DETECT 0x81 +#define MADERA_GP_FN_ASRC1_IN1_LOCK 0x88 +#define MADERA_GP_FN_ASRC1_IN2_LOCK 0x89 +#define MADERA_GP_FN_ASRC2_IN1_LOCK 0x8A +#define MADERA_GP_FN_ASRC2_IN2_LOCK 0x8B +#define MADERA_GP_FN_DSP_IRQ1 0xA0 +#define MADERA_GP_FN_DSP_IRQ2 0xA1 +#define MADERA_GP_FN_DSP_IRQ3 0xA2 +#define MADERA_GP_FN_DSP_IRQ4 0xA3 +#define MADERA_GP_FN_DSP_IRQ5 0xA4 +#define MADERA_GP_FN_DSP_IRQ6 0xA5 +#define MADERA_GP_FN_DSP_IRQ7 0xA6 +#define MADERA_GP_FN_DSP_IRQ8 0xA7 +#define MADERA_GP_FN_DSP_IRQ9 0xA8 +#define MADERA_GP_FN_DSP_IRQ10 0xA9 +#define MADERA_GP_FN_DSP_IRQ11 0xAA +#define MADERA_GP_FN_DSP_IRQ12 0xAB +#define MADERA_GP_FN_DSP_IRQ13 0xAC +#define MADERA_GP_FN_DSP_IRQ14 0xAD +#define MADERA_GP_FN_DSP_IRQ15 0xAE +#define MADERA_GP_FN_DSP_IRQ16 0xAF +#define MADERA_GP_FN_HPOUT1L_SC 0xB0 +#define MADERA_GP_FN_HPOUT1R_SC 0xB1 +#define MADERA_GP_FN_HPOUT2L_SC 0xB2 +#define MADERA_GP_FN_HPOUT2R_SC 0xB3 +#define MADERA_GP_FN_HPOUT3L_SC 0xB4 +#define MADERA_GP_FN_HPOUT4R_SC 0xB5 +#define MADERA_GP_FN_SPKOUTL_SC 0xB6 +#define MADERA_GP_FN_SPKOUTR_SC 0xB7 +#define MADERA_GP_FN_HPOUT1L_ENA 0xC0 +#define MADERA_GP_FN_HPOUT1R_ENA 0xC1 +#define MADERA_GP_FN_HPOUT2L_ENA 0xC2 +#define MADERA_GP_FN_HPOUT2R_ENA 0xC3 +#define MADERA_GP_FN_HPOUT3L_ENA 0xC4 +#define MADERA_GP_FN_HPOUT4R_ENA 0xC5 +#define MADERA_GP_FN_SPKOUTL_ENA 0xC6 +#define MADERA_GP_FN_SPKOUTR_ENA 0xC7 +#define MADERA_GP_FN_HPOUT1L_DIS 0xD0 +#define MADERA_GP_FN_HPOUT1R_DIS 0xD1 +#define MADERA_GP_FN_HPOUT2L_DIS 0xD2 +#define MADERA_GP_FN_HPOUT2R_DIS 0xD3 +#define MADERA_GP_FN_HPOUT3L_DIS 0xD4 +#define MADERA_GP_FN_HPOUT4R_DIS 0xD5 +#define MADERA_GP_FN_SPKOUTL_DIS 0xD6 +#define MADERA_GP_FN_SPKOUTR_DIS 0xD7 +#define MADERA_GP_FN_SPK_SHUTDOWN 0xE0 +#define MADERA_GP_FN_SPK_OVH_SHUTDOWN 0xE1 +#define MADERA_GP_FN_SPK_OVH_WARN 0xE2 +#define MADERA_GP_FN_TIMER1_STATUS 0x140 +#define MADERA_GP_FN_TIMER2_STATUS 0x141 +#define MADERA_GP_FN_TIMER3_STATUS 0x142 +#define MADERA_GP_FN_TIMER4_STATUS 0x143 +#define MADERA_GP_FN_TIMER5_STATUS 0x144 +#define MADERA_GP_FN_TIMER6_STATUS 0x145 +#define MADERA_GP_FN_TIMER7_STATUS 0x146 +#define MADERA_GP_FN_TIMER8_STATUS 0x147 +#define MADERA_GP_FN_EVENTLOG1_FIFO_STS 0x150 +#define MADERA_GP_FN_EVENTLOG2_FIFO_STS 0x151 +#define MADERA_GP_FN_EVENTLOG3_FIFO_STS 0x152 +#define MADERA_GP_FN_EVENTLOG4_FIFO_STS 0x153 +#define MADERA_GP_FN_EVENTLOG5_FIFO_STS 0x154 +#define MADERA_GP_FN_EVENTLOG6_FIFO_STS 0x155 +#define MADERA_GP_FN_EVENTLOG7_FIFO_STS 0x156 +#define MADERA_GP_FN_EVENTLOG8_FIFO_STS 0x157 + +struct snd_soc_dapm_context; + +struct madera { + struct regmap *regmap; + struct regmap *regmap_32bit; + + struct device *dev; + + enum madera_type type; + unsigned int rev; + + struct gpio_desc *reset_gpio; + + int num_core_supplies; + struct regulator_bulk_data core_supplies[MADERA_MAX_CORE_SUPPLIES]; + struct regulator *dcvdd; + bool internal_dcvdd; + + struct madera_pdata pdata; + + struct device *irq_dev; + int irq; + + unsigned int out_clamp[MADERA_MAX_OUTPUT]; + unsigned int out_shorted[MADERA_MAX_OUTPUT]; + unsigned int hp_ena; + + struct snd_soc_dapm_context *dapm; + + struct blocking_notifier_head notifier; +}; + +unsigned int madera_get_num_micbias(struct madera *madera); +unsigned int madera_get_num_childbias(struct madera *madera, + unsigned int micbias); + +const char *madera_name_from_type(enum madera_type type); + +static inline int madera_call_notifiers(struct madera *madera, + unsigned long event, + void *data) +{ + return blocking_notifier_call_chain(&madera->notifier, event, data); +} +#endif diff --git a/include/linux/mfd/madera/pdata.h b/include/linux/mfd/madera/pdata.h new file mode 100644 index 0000000..6d930aa --- /dev/null +++ b/include/linux/mfd/madera/pdata.h @@ -0,0 +1,88 @@ +/* + * Platform data for Cirrus Logic Madera codecs + * + * Copyright 2015-2017 Cirrus Logic + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef MADERA_PDATA_H +#define MADERA_PDATA_H + +#include +#include + +#include +#include +#include +#include + +#define MADERA_MAX_MICBIAS 4 +#define MADERA_MAX_CHILD_MICBIAS 4 + +#define MADERA_MAX_GPSW 2 + +struct pinctrl_map; + +/** MICBIAS pin configuration */ +struct madera_micbias_pin_pdata { + /** Regulator configuration for pin switch */ + struct regulator_init_data init_data; +}; + +/** Regulator configuration for an on-chip MICBIAS */ +struct madera_micbias_pdata { + /** Configuration of the MICBIAS generator */ + struct regulator_init_data init_data; + + bool ext_cap; /** External capacitor fitted */ + + /** + * Configuration for each output pin from this MICBIAS + * (Not used on CS47L85 and WM1840) + */ + struct madera_micbias_pin_pdata pin[MADERA_MAX_CHILD_MICBIAS]; +}; + +struct madera_pdata { + /** GPIO controlling /RESET, if any */ + int reset; + + /** Substruct of pdata for the LDO1 regulator */ + struct madera_ldo1_pdata ldo1; + + /** Substruct of pdata for the MICSUPP regulator */ + struct madera_micsupp_pdata micsupp; + + /** Substruct of pdata for the irqchip driver */ + struct madera_irqchip_pdata irqchip; + + /** Base GPIO */ + int gpio_base; + + /** + * Array of GPIO configurations + * See Documentation/pinctrl.txt + */ + const struct pinctrl_map *gpio_configs; + int n_gpio_configs; + + /** MICBIAS configurations */ + struct madera_micbias_pdata micbias[MADERA_MAX_MICBIAS]; + + /** + * Substructure of pdata for the ASoC codec driver + * See include/sound/madera-pdata.h + */ + struct madera_codec_pdata codec; + + /** + * General purpose switch mode setting + * See the SW1_MODE field in the datasheet for the available values + */ + u32 gpsw[MADERA_MAX_GPSW]; +}; + +#endif