From mboxrd@z Thu Jan 1 00:00:00 1970 From: gyungoh@gmail.com Subject: [PATCH v8 7/8] regulator: sky81452: Modify Device Tree structure Date: Tue, 25 Nov 2014 16:03:05 +0900 Message-ID: <1416898986-24530-8-git-send-email-jack.yoo@skyworksinc.com> References: <1416898986-24530-1-git-send-email-jack.yoo@skyworksinc.com> Return-path: In-Reply-To: <1416898986-24530-1-git-send-email-jack.yoo@skyworksinc.com> Sender: linux-kernel-owner@vger.kernel.org To: sameo@linux.intel.com, lee.jones@linaro.org, jg1.han@samsung.com, cooloney@gmail.com, broonie@kernel.org, lgirdwood@gmail.com Cc: jack.yoo@skyworksinc.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, grant.likely@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, pawel.moll@arm.com, heiko@sntech.de, jason@lakedaemon.net, shawn.guo@freescale.com, treding@nvidia.com, florian.vaussard@epfl.ch, trivial@kernel.org, linux@roeck-us.net, andrew@lunn.ch, jic23@kernel.org List-Id: devicetree@vger.kernel.org From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- Changes v8: Changed the DT parsing of regulator using regulator_node and of_match Changes v7: Modified licensing text to GPLv2 Splitted Kconfig renaming from DT patch Changes v6: Added new line character at the end of line of dev_err() Changes v5: Changed DT for regulator : 'lout' node should be defined under 'regulator' Removed compatible string Modified to return EINVAL when of_node is NULL Changes v4: Removed MODULE_VERSION() Modified license to GPLv2 Changes v3: Modified to return ENODATA when of_node is NULL Modified the messages in error cases Changes v2: Added 'compatible' attribute in the driver Added message for exception or errors. drivers/regulator/sky81452-regulator.c | 46 +++++++--------------------------- 1 file changed, 9 insertions(+), 37 deletions(-) diff --git a/drivers/regulator/sky81452-regulator.c b/drivers/regulator/sky81452-regulator.c index 97aff0c..6478606 100644 --- a/drivers/regulator/sky81452-regulator.c +++ b/drivers/regulator/sky81452-regulator.c @@ -5,9 +5,8 @@ * Author : Gyungoh Yoo * * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. + * under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of @@ -52,6 +51,8 @@ static const struct regulator_linear_range sky81452_reg_ranges[] = { static const struct regulator_desc sky81452_reg = { .name = "LOUT", + .of_match = of_match_ptr("lout"), + .regulators_node = of_match_ptr("regulator"), .ops = &sky81452_reg_ops, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, @@ -64,30 +65,6 @@ static const struct regulator_desc sky81452_reg = { .enable_mask = SKY81452_LEN, }; -#ifdef CONFIG_OF -static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) -{ - struct regulator_init_data *init_data; - struct device_node *np; - - np = of_get_child_by_name(dev->parent->of_node, "regulator"); - if (unlikely(!np)) { - dev_err(dev, "regulator node not found"); - return NULL; - } - - init_data = of_get_regulator_init_data(dev, np); - - of_node_put(np); - return init_data; -} -#else -static struct regulator_init_data *sky81452_reg_parse_dt(struct device *dev) -{ - return ERR_PTR(-EINVAL); -} -#endif - static int sky81452_reg_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -95,20 +72,16 @@ static int sky81452_reg_probe(struct platform_device *pdev) struct regulator_config config = { }; struct regulator_dev *rdev; - if (!init_data) { - init_data = sky81452_reg_parse_dt(dev); - if (IS_ERR(init_data)) - return PTR_ERR(init_data); - } - - config.dev = dev; + config.dev = dev->parent; config.init_data = init_data; config.of_node = dev->of_node; config.regmap = dev_get_drvdata(dev->parent); rdev = devm_regulator_register(dev, &sky81452_reg, &config); - if (IS_ERR(rdev)) + if (IS_ERR(rdev)) { + dev_err(dev, "failed to register. err=%ld\n", PTR_ERR(rdev)); return PTR_ERR(rdev); + } platform_set_drvdata(pdev, rdev); @@ -126,5 +99,4 @@ module_platform_driver(sky81452_reg_driver); MODULE_DESCRIPTION("Skyworks SKY81452 Regulator driver"); MODULE_AUTHOR("Gyungoh Yoo "); -MODULE_LICENSE("GPL"); -MODULE_VERSION("1.0"); +MODULE_LICENSE("GPL v2"); -- 1.9.1