Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754734AbdIFN0o (ORCPT ); Wed, 6 Sep 2017 09:26:44 -0400 Received: from mx0b-001ae601.pphosted.com ([67.231.152.168]:42778 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754566AbdIFNVC (ORCPT ); Wed, 6 Sep 2017 09:21:02 -0400 Authentication-Results: ppops.net; spf=none smtp.mailfrom=rf@opensource.wolfsonmicro.com From: Richard Fitzgerald To: , , , , , , CC: , , , , Subject: [PATCH v5 08/17] regulator: arizona-ldo1: Add support for Cirrus Logic Madera codecs Date: Wed, 6 Sep 2017 14:20:34 +0100 Message-ID: <1504704043-8052-9-git-send-email-rf@opensource.wolfsonmicro.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1504704043-8052-1-git-send-email-rf@opensource.wolfsonmicro.com> References: <1504704043-8052-1-git-send-email-rf@opensource.wolfsonmicro.com> MIME-Version: 1.0 Content-Type: text/plain 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=8.0.1-1707230000 definitions=main-1709060186 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4308 Lines: 152 This adds a new driver identity "madera-ldo1" and probe function so that this driver can be used to control the LDO1 regulator on some Cirrus Logic Madera codecs. Signed-off-by: Richard Fitzgerald --- No changes since V4 drivers/regulator/Kconfig | 8 ++-- drivers/regulator/arizona-ldo1.c | 82 +++++++++++++++++++++++++++++++++++++++- 2 files changed, 85 insertions(+), 5 deletions(-) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index cb73df4..bfb4679 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -126,12 +126,12 @@ config REGULATOR_AB8500 signal AB8500 PMIC config REGULATOR_ARIZONA_LDO1 - tristate "Wolfson Arizona class devices LDO1" - depends on MFD_ARIZONA + tristate "Cirrus Madera and Wolfson Arizona class devices LDO1" + depends on MFD_ARIZONA || MFD_MADERA depends on SND_SOC help - Support for the LDO1 regulators found on Wolfson Arizona class - devices. + Support for the LDO1 regulators found on Cirrus Logic Madera codecs + and Wolfson Arizona codecs. config REGULATOR_ARIZONA_MICSUPP tristate "Cirrus Madera and Wolfson Arizona class devices MICSUPP" diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c index 96fddff..c64625e 100644 --- a/drivers/regulator/arizona-ldo1.c +++ b/drivers/regulator/arizona-ldo1.c @@ -31,6 +31,10 @@ #include #include +#include +#include +#include + struct arizona_ldo1 { struct regulator_dev *regulator; struct regmap *regmap; @@ -188,6 +192,31 @@ static int arizona_ldo1_hc_get_voltage_sel(struct regulator_dev *rdev) .num_consumer_supplies = 1, }; +static const struct regulator_desc madera_ldo1 = { + .name = "LDO1", + .supply_name = "LDOVDD", + .type = REGULATOR_VOLTAGE, + .ops = &arizona_ldo1_ops, + + .vsel_reg = MADERA_LDO1_CONTROL_1, + .vsel_mask = MADERA_LDO1_VSEL_MASK, + .min_uV = 900000, + .uV_step = 25000, + .n_voltages = 13, + .enable_time = 3000, + + .owner = THIS_MODULE, +}; + +static const struct regulator_init_data madera_ldo1_default = { + .constraints = { + .min_uV = 1200000, + .max_uV = 1200000, + .valid_ops_mask = REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, +}; + static int arizona_ldo1_of_get_pdata(struct arizona_ldo1_pdata *pdata, struct regulator_config *config, const struct regulator_desc *desc, @@ -341,6 +370,32 @@ static int arizona_ldo1_probe(struct platform_device *pdev) return ret; } +static int madera_ldo1_probe(struct platform_device *pdev) +{ + struct madera *madera = dev_get_drvdata(pdev->dev.parent); + struct arizona_ldo1 *ldo1; + bool external_dcvdd; + int ret; + + ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL); + if (!ldo1) + return -ENOMEM; + + ldo1->regmap = madera->regmap; + + ldo1->init_data = madera_ldo1_default; + + ret = arizona_ldo1_common_init(pdev, ldo1, &arizona_ldo1, + &madera->pdata.ldo1, + &external_dcvdd); + if (ret) + return ret; + + madera->internal_dcvdd = !external_dcvdd; + + return 0; +} + static struct platform_driver arizona_ldo1_driver = { .probe = arizona_ldo1_probe, .driver = { @@ -348,10 +403,35 @@ static int arizona_ldo1_probe(struct platform_device *pdev) }, }; -module_platform_driver(arizona_ldo1_driver); +static struct platform_driver madera_ldo1_driver = { + .probe = madera_ldo1_probe, + .driver = { + .name = "madera-ldo1", + }, +}; + +static struct platform_driver * const madera_ldo1_drivers[] = { + &arizona_ldo1_driver, + &madera_ldo1_driver, +}; + +static int __init arizona_ldo1_init(void) +{ + return platform_register_drivers(madera_ldo1_drivers, + ARRAY_SIZE(madera_ldo1_drivers)); +} +module_init(arizona_ldo1_init); + +static void __exit madera_ldo1_exit(void) +{ + platform_unregister_drivers(madera_ldo1_drivers, + ARRAY_SIZE(madera_ldo1_drivers)); +} +module_exit(madera_ldo1_exit); /* Module information */ MODULE_AUTHOR("Mark Brown "); MODULE_DESCRIPTION("Arizona LDO1 driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:arizona-ldo1"); +MODULE_ALIAS("platform:madera-ldo1"); -- 1.9.1