From patchwork Thu Oct 30 11:20:46 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 5196571 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EEA509F349 for ; Thu, 30 Oct 2014 11:27:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D85ED201ED for ; Thu, 30 Oct 2014 11:27:34 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 450F820266 for ; Thu, 30 Oct 2014 11:27:32 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XjnqK-00005S-QP; Thu, 30 Oct 2014 11:24:40 +0000 Received: from mailout2.w1.samsung.com ([210.118.77.12]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XjnnW-0006oV-VQ for linux-arm-kernel@lists.infradead.org; Thu, 30 Oct 2014 11:21:51 +0000 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout2.w1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NE900AG690CCC70@mailout2.w1.samsung.com> for linux-arm-kernel@lists.infradead.org; Thu, 30 Oct 2014 11:24:12 +0000 (GMT) X-AuditID: cbfec7f5-b7f956d000005ed7-a0-54521f33e115 Received: from eusync3.samsung.com ( [203.254.199.213]) by eucpsbgm2.samsung.com (EUCPMTA) with SMTP id 26.18.24279.33F12545; Thu, 30 Oct 2014 11:21:23 +0000 (GMT) Received: from AMDC1943.digital.local ([106.116.151.171]) by eusync3.samsung.com (Oracle Communications Messaging Server 7u4-23.01(7.0.4.23.0) 64bit (built Aug 10 2011)) with ESMTPA id <0NE9009H68VFGU90@eusync3.samsung.com>; Thu, 30 Oct 2014 11:21:23 +0000 (GMT) From: Krzysztof Kozlowski To: Samuel Ortiz , Lee Jones , Liam Girdwood , Mark Brown , linux-kernel@vger.kernel.org, Ben Dooks , Kukjin Kim , Russell King , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 07/14] regulator: max77686: Remove support for board files Date: Thu, 30 Oct 2014 12:20:46 +0100 Message-id: <1414668053-31370-8-git-send-email-k.kozlowski@samsung.com> X-Mailer: git-send-email 1.9.1 In-reply-to: <1414668053-31370-1-git-send-email-k.kozlowski@samsung.com> References: <1414668053-31370-1-git-send-email-k.kozlowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrNLMWRmVeSWpSXmKPExsVy+t/xq7rG8kEhBm8vq1psnLGe1WLSugNM FlMfPmGzuP7lOavF/CPnWC2O/i6weP3C0KJ3wVU2i7NNb9gt7n89ymjx7UoHk8Wmx9dYLS7v msNmMeP8PiaL25d5LdYeuctucbqb1UHQo6W5h83j7/PrLB5/V71g9tg56y67x6ZVnWwed67t YfOYdzLQY/OSeo++LasYPT5vkgvgiuKySUnNySxLLdK3S+DKeH3pK2vBUcuKHXNnMTUwPtXt YuTkkBAwkTi67jQzhC0mceHeerYuRi4OIYGljBLP+t6wQjh9TBJPNnSxg1SxCRhLbF6+BKxK RKCTWaLnYC8ziMMssJpJ4ueVU0AOB4ewgK/E1cduIA0sAqoSGyd9AlvBK+Au8fnJIXaIdXIS J49NZgWxOQU8JNZ8bGcFaRUCqrn3TXsCI+8CRoZVjKKppckFxUnpuUZ6xYm5xaV56XrJ+bmb GCEB/nUH49JjVocYBTgYlXh4I44FhAixJpYVV+YeYpTgYFYS4V0tFhQixJuSWFmVWpQfX1Sa k1p8iJGJg1OqgdE2QdIpOzzrwLW3i3iLt1YtvxZcqOJ57bDsWqa7e//V8s26cyT0dN/KCdYV 97e6BSvVfOB53nhUReld8U51yUOmK9QOixu3yizmzlZdXcq5Z8mHfv3aQHexDH+TC5ee5AaX nVxRM1uooDvW/RvvXwbbgCd1D5hCshlsd0SHPi5N2tN++J7JNiWW4oxEQy3mouJEAPrVezdO AgAA X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141030_042147_217985_2DCEA6DD X-CRM114-Status: GOOD ( 20.81 ) X-Spam-Score: -5.6 (-----) Cc: Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz , Chanwoo Choi , Kyungmin Park , Javier Martinez Canillas , Marek Szyprowski X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The driver is used only on Exynos based boards with DTS support. Convert the driver to DTS-only version. Parse all regulators at once, not one-by-one. Remove dependency on data provided by max77686 MFD driver. Use new DT style parsing method for regulators init data. The regulator driver now should have its own of_compatible property. If it is not present then it will use "voltage-regulators" sub-node of parent's node. Signed-off-by: Krzysztof Kozlowski --- drivers/regulator/max77686.c | 110 +++++++++++++++---------------------------- 1 file changed, 39 insertions(+), 71 deletions(-) diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c index 27c5f4556044..ac05b318e405 100644 --- a/drivers/regulator/max77686.c +++ b/drivers/regulator/max77686.c @@ -84,6 +84,7 @@ enum max77686_ramp_rate { struct max77686_data { /* Array indexed by regulator id */ unsigned int opmode[MAX77686_REGULATORS]; + bool missing_of_node; }; static unsigned int max77686_get_opmode_shift(int id) @@ -281,6 +282,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { #define regulator_desc_ldo(num) { \ .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ .id = MAX77686_LDO##num, \ .ops = &max77686_ops, \ .type = REGULATOR_VOLTAGE, \ @@ -297,6 +299,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { } #define regulator_desc_lpm_ldo(num) { \ .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ .id = MAX77686_LDO##num, \ .ops = &max77686_ldo_ops, \ .type = REGULATOR_VOLTAGE, \ @@ -313,6 +316,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { } #define regulator_desc_ldo_low(num) { \ .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ .id = MAX77686_LDO##num, \ .ops = &max77686_ldo_ops, \ .type = REGULATOR_VOLTAGE, \ @@ -329,6 +333,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { } #define regulator_desc_ldo1_low(num) { \ .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ .id = MAX77686_LDO##num, \ .ops = &max77686_ops, \ .type = REGULATOR_VOLTAGE, \ @@ -345,6 +350,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { } #define regulator_desc_buck(num) { \ .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ .id = MAX77686_BUCK##num, \ .ops = &max77686_ops, \ .type = REGULATOR_VOLTAGE, \ @@ -360,6 +366,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { } #define regulator_desc_buck1(num) { \ .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ .id = MAX77686_BUCK##num, \ .ops = &max77686_buck1_ops, \ .type = REGULATOR_VOLTAGE, \ @@ -375,6 +382,7 @@ static struct regulator_ops max77686_buck_dvs_ops = { } #define regulator_desc_buck_dvs(num) { \ .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ .id = MAX77686_BUCK##num, \ .ops = &max77686_buck_dvs_ops, \ .type = REGULATOR_VOLTAGE, \ @@ -428,85 +436,34 @@ static const struct regulator_desc regulators[] = { regulator_desc_buck(9), }; -#ifdef CONFIG_OF -static int max77686_pmic_dt_parse_pdata(struct platform_device *pdev, - struct max77686_platform_data *pdata) -{ - struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); - struct device_node *pmic_np, *regulators_np; - struct max77686_regulator_data *rdata; - struct of_regulator_match rmatch; - unsigned int i; - - pmic_np = iodev->dev->of_node; - regulators_np = of_get_child_by_name(pmic_np, "voltage-regulators"); - if (!regulators_np) { - dev_err(&pdev->dev, "could not find regulators sub-node\n"); - return -EINVAL; - } - - pdata->num_regulators = ARRAY_SIZE(regulators); - rdata = devm_kzalloc(&pdev->dev, sizeof(*rdata) * - pdata->num_regulators, GFP_KERNEL); - if (!rdata) { - of_node_put(regulators_np); - return -ENOMEM; - } - - for (i = 0; i < pdata->num_regulators; i++) { - rmatch.name = regulators[i].name; - rmatch.init_data = NULL; - rmatch.of_node = NULL; - of_regulator_match(&pdev->dev, regulators_np, &rmatch, 1); - rdata[i].initdata = rmatch.init_data; - rdata[i].of_node = rmatch.of_node; - } - - pdata->regulators = rdata; - of_node_put(regulators_np); - - return 0; -} -#else -static int max77686_pmic_dt_parse_pdata(struct platform_device *pdev, - struct max77686_platform_data *pdata) -{ - return 0; -} -#endif /* CONFIG_OF */ - static int max77686_pmic_probe(struct platform_device *pdev) { struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); - struct max77686_platform_data *pdata = dev_get_platdata(iodev->dev); struct max77686_data *max77686; - int i, ret = 0; + int i; struct regulator_config config = { }; dev_dbg(&pdev->dev, "%s\n", __func__); - if (!pdata) { - dev_err(&pdev->dev, "no platform data found for regulator\n"); - return -ENODEV; - } - - if (iodev->dev->of_node) { - ret = max77686_pmic_dt_parse_pdata(pdev, pdata); - if (ret) - return ret; - } - - if (pdata->num_regulators != MAX77686_REGULATORS) { - dev_err(&pdev->dev, - "Invalid initial data for regulator's initialiation\n"); - return -EINVAL; - } - max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data), GFP_KERNEL); if (!max77686) return -ENOMEM; + if (!pdev->dev.of_node) { + /* + * Backward DTS compatiblity where regulator driver had not + * a compatible property for itself. + */ + if (!iodev->dev->of_node) { + dev_err(&pdev->dev, "No OF node for driver and its parent\n"); + return -EINVAL; + } + pdev->dev.of_node = of_get_child_by_name(iodev->dev->of_node, + "voltage-regulators"); + max77686->missing_of_node = true; + } + config.dev = &pdev->dev; config.regmap = iodev->regmap; config.driver_data = max77686; @@ -516,23 +473,33 @@ static int max77686_pmic_probe(struct platform_device *pdev) struct regulator_dev *rdev; int id = regulators[i].id; - config.init_data = pdata->regulators[i].initdata; - config.of_node = pdata->regulators[i].of_node; - max77686->opmode[id] = regulators[i].enable_mask >> max77686_get_opmode_shift(id); rdev = devm_regulator_register(&pdev->dev, ®ulators[i], &config); if (IS_ERR(rdev)) { + int ret = PTR_ERR(rdev); dev_err(&pdev->dev, - "regulator init failed for %d\n", i); - return PTR_ERR(rdev); + "regulator init failed for %d: %d\n", i, ret); + if (max77686->missing_of_node) + of_node_put(pdev->dev.of_node); + return ret; } } return 0; } +static int max77686_pmic_remove(struct platform_device *pdev) +{ + struct max77686_data *max77686 = platform_get_drvdata(pdev); + + if (max77686->missing_of_node) + of_node_put(pdev->dev.of_node); + + return 0; +} + static const struct platform_device_id max77686_pmic_id[] = { {"max77686-pmic", 0}, { }, @@ -545,6 +512,7 @@ static struct platform_driver max77686_pmic_driver = { .owner = THIS_MODULE, }, .probe = max77686_pmic_probe, + .remove = max77686_pmic_remove, .id_table = max77686_pmic_id, };