From patchwork Mon Jan 20 06:35:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 207376 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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_SANE_1 autolearn=unavailable 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 46AACC33CB7 for ; Mon, 20 Jan 2020 06:35:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1EAEB2073A for ; Mon, 20 Jan 2020 06:35:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726761AbgATGfd (ORCPT ); Mon, 20 Jan 2020 01:35:33 -0500 Received: from mail-lj1-f193.google.com ([209.85.208.193]:33481 "EHLO mail-lj1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725872AbgATGfd (ORCPT ); Mon, 20 Jan 2020 01:35:33 -0500 Received: by mail-lj1-f193.google.com with SMTP id y6so32635062lji.0; Sun, 19 Jan 2020 22:35:30 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=yhnSdz3XkEFd+78V1ypU22Mb7BmmaZGpzOJ1wkbDV8M=; b=TtAwSZOFYltCG7NdmgPhmH5E5d9tbPDcO94hQQ0gWBhvz/tHUnH2PnVF4f6nXnzq5/ rMnNd61lBa8TAE5NiSnnsRg9bUqWAXez3l001VFOwybqzE31rIlf1/NkH0LytInpMXPN gGF9l+ao/0XZsL1GyxLt8fuzTQbdPN2d2DZ8CljmULiNIjaw68mCOq2k72g6v0Hiey0R Bkw+MPQiNluvzLzDMEARl6lksASqF8ASTtNfoV00QTfEfGJL/zh4RVrRlqvXYfN2IIr9 r/vjYC/MOBDXL60lnbesSvT+dOniFRculCiSy+c2Rm5VaYACM7jnt7O67bNOgQ0VCh1n Gd/g== X-Gm-Message-State: APjAAAUlNVfqO4sOQ0X+Mtmie6ZYRBQ/an1mgtPbAEximDGlQqPAA6UX tKTUvWesJdAIr+gdRbLZsiw= X-Google-Smtp-Source: APXvYqwCP/zIkF2ObXGu22nIE5LPZcwClv/eW/j/p14qkPcBaQFaK+7hTi8l2JHl7xCPHy/cZduPZQ== X-Received: by 2002:a2e:8758:: with SMTP id q24mr12844388ljj.157.1579502129797; Sun, 19 Jan 2020 22:35:29 -0800 (PST) Received: from localhost.localdomain ([213.255.186.46]) by smtp.gmail.com with ESMTPSA id d4sm15933668lfn.42.2020.01.19.22.35.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Jan 2020 22:35:29 -0800 (PST) Date: Mon, 20 Jan 2020 08:35:17 +0200 From: Matti Vaittinen To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.com Cc: Jacek Anaszewski , Pavel Machek , Dan Murphy , Rob Herring , Mark Rutland , Lee Jones , Liam Girdwood , Mark Brown , Jonathan Corbet , Michael Turquette , Stephen Boyd , Linus Walleij , Bartosz Golaszewski , Alessandro Zummo , Alexandre Belloni , Greg Kroah-Hartman , Arnd Bergmann , Mauro Carvalho Chehab , Wolfram Sang , Phil Edworthy , Noralf =?iso-8859-1?q?Tr=F8nnes?= , linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org Subject: [PATCH v11 03/13] mfd: rohm PMICs - use platform_device_id to match MFD sub-devices Message-ID: <13994480cab6d5d6376c8f5228572e55ca06e479.1579501711.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Thanks to Stephen Boyd I today learned we can use platform_device_id to do device and module matching for MFD sub-devices! Do device matching using the platform_device_id instead of using explicit module_aliases to load modules and custom parent-data field to do module loading and sub-device matching. Signed-off-by: Matti Vaittinen Acked-for-MFD-by: Lee Jones --- No changes since v10 drivers/clk/clk-bd718x7.c | 12 ++++++++- drivers/mfd/rohm-bd70528.c | 3 +-- drivers/mfd/rohm-bd718x7.c | 39 ++++++++++++++++++++++----- drivers/regulator/bd718x7-regulator.c | 17 +++++++++--- include/linux/mfd/rohm-generic.h | 3 +-- 5 files changed, 58 insertions(+), 16 deletions(-) diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c index 00926c587390..33699ee1bdf3 100644 --- a/drivers/clk/clk-bd718x7.c +++ b/drivers/clk/clk-bd718x7.c @@ -74,6 +74,7 @@ static int bd71837_clk_probe(struct platform_device *pdev) .name = "bd718xx-32k-out", .ops = &bd71837_clk_ops, }; + enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data; c = devm_kzalloc(&pdev->dev, sizeof(*c), GFP_KERNEL); if (!c) @@ -87,7 +88,7 @@ static int bd71837_clk_probe(struct platform_device *pdev) dev_err(&pdev->dev, "No parent clk found\n"); return -EINVAL; } - switch (mfd->chip_type) { + switch (chip) { case ROHM_CHIP_TYPE_BD71837: case ROHM_CHIP_TYPE_BD71847: c->reg = BD718XX_REG_OUT32K; @@ -121,11 +122,20 @@ static int bd71837_clk_probe(struct platform_device *pdev) return rval; } +static const struct platform_device_id bd718x7_clk_id[] = { + { "bd71837-clk", ROHM_CHIP_TYPE_BD71837 }, + { "bd71847-clk", ROHM_CHIP_TYPE_BD71847 }, + { "bd70528-clk", ROHM_CHIP_TYPE_BD70528 }, + { }, +}; +MODULE_DEVICE_TABLE(platform, bd718x7_clk_id); + static struct platform_driver bd71837_clk = { .driver = { .name = "bd718xx-clk", }, .probe = bd71837_clk_probe, + .id_table = bd718x7_clk_id, }; module_platform_driver(bd71837_clk); diff --git a/drivers/mfd/rohm-bd70528.c b/drivers/mfd/rohm-bd70528.c index ef6786fd3b00..5c44d3b77b3e 100644 --- a/drivers/mfd/rohm-bd70528.c +++ b/drivers/mfd/rohm-bd70528.c @@ -48,7 +48,7 @@ static struct mfd_cell bd70528_mfd_cells[] = { * We use BD71837 driver to drive the clock block. Only differences to * BD70528 clock gate are the register address and mask. */ - { .name = "bd718xx-clk", }, + { .name = "bd70528-clk", }, { .name = "bd70528-wdt", }, { .name = "bd70528-power", @@ -236,7 +236,6 @@ static int bd70528_i2c_probe(struct i2c_client *i2c, dev_set_drvdata(&i2c->dev, &bd70528->chip); - bd70528->chip.chip_type = ROHM_CHIP_TYPE_BD70528; bd70528->chip.regmap = devm_regmap_init_i2c(i2c, &bd70528_regmap); if (IS_ERR(bd70528->chip.regmap)) { dev_err(&i2c->dev, "Failed to initialize Regmap\n"); diff --git a/drivers/mfd/rohm-bd718x7.c b/drivers/mfd/rohm-bd718x7.c index 85e7f5133365..bb86ec829079 100644 --- a/drivers/mfd/rohm-bd718x7.c +++ b/drivers/mfd/rohm-bd718x7.c @@ -30,14 +30,24 @@ static struct gpio_keys_platform_data bd718xx_powerkey_data = { .name = "bd718xx-pwrkey", }; -static struct mfd_cell bd718xx_mfd_cells[] = { +static struct mfd_cell bd71837_mfd_cells[] = { { .name = "gpio-keys", .platform_data = &bd718xx_powerkey_data, .pdata_size = sizeof(bd718xx_powerkey_data), }, - { .name = "bd718xx-clk", }, - { .name = "bd718xx-pmic", }, + { .name = "bd71837-clk", }, + { .name = "bd71837-pmic", }, +}; + +static struct mfd_cell bd71847_mfd_cells[] = { + { + .name = "gpio-keys", + .platform_data = &bd718xx_powerkey_data, + .pdata_size = sizeof(bd718xx_powerkey_data), + }, + { .name = "bd71847-clk", }, + { .name = "bd71847-pmic", }, }; static const struct regmap_irq bd718xx_irqs[] = { @@ -124,6 +134,9 @@ static int bd718xx_i2c_probe(struct i2c_client *i2c, { struct bd718xx *bd718xx; int ret; + unsigned int chip_type; + struct mfd_cell *mfd; + int cells; if (!i2c->irq) { dev_err(&i2c->dev, "No IRQ configured\n"); @@ -136,8 +149,21 @@ static int bd718xx_i2c_probe(struct i2c_client *i2c, return -ENOMEM; bd718xx->chip_irq = i2c->irq; - bd718xx->chip.chip_type = (unsigned int)(uintptr_t) - of_device_get_match_data(&i2c->dev); + chip_type = (unsigned int)(uintptr_t) + of_device_get_match_data(&i2c->dev); + switch (chip_type) { + case ROHM_CHIP_TYPE_BD71837: + mfd = bd71837_mfd_cells; + cells = ARRAY_SIZE(bd71837_mfd_cells); + break; + case ROHM_CHIP_TYPE_BD71847: + mfd = bd71847_mfd_cells; + cells = ARRAY_SIZE(bd71847_mfd_cells); + break; + default: + dev_err(&i2c->dev, "Unknown device type"); + return -EINVAL; + } bd718xx->chip.dev = &i2c->dev; dev_set_drvdata(&i2c->dev, bd718xx); @@ -170,8 +196,7 @@ static int bd718xx_i2c_probe(struct i2c_client *i2c, button.irq = ret; ret = devm_mfd_add_devices(bd718xx->chip.dev, PLATFORM_DEVID_AUTO, - bd718xx_mfd_cells, - ARRAY_SIZE(bd718xx_mfd_cells), NULL, 0, + mfd, cells, NULL, 0, regmap_irq_get_domain(bd718xx->irq_data)); if (ret) dev_err(&i2c->dev, "Failed to create subdevices\n"); diff --git a/drivers/regulator/bd718x7-regulator.c b/drivers/regulator/bd718x7-regulator.c index 13a43eee2e46..6beaf867d9cb 100644 --- a/drivers/regulator/bd718x7-regulator.c +++ b/drivers/regulator/bd718x7-regulator.c @@ -1164,6 +1164,7 @@ static int bd718xx_probe(struct platform_device *pdev) int i, j, err; bool use_snvs; + enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data; mfd = dev_get_drvdata(pdev->dev.parent); if (!mfd) { @@ -1172,8 +1173,8 @@ static int bd718xx_probe(struct platform_device *pdev) goto err; } - if (mfd->chip.chip_type >= ROHM_CHIP_TYPE_AMOUNT || - !pmic_regulators[mfd->chip.chip_type].r_datas) { + if (chip >= ROHM_CHIP_TYPE_AMOUNT || chip < 0 || + !pmic_regulators[chip].r_datas) { dev_err(&pdev->dev, "Unsupported chip type\n"); err = -EINVAL; goto err; @@ -1215,13 +1216,13 @@ static int bd718xx_probe(struct platform_device *pdev) } } - for (i = 0; i < pmic_regulators[mfd->chip.chip_type].r_amount; i++) { + for (i = 0; i < pmic_regulators[chip].r_amount; i++) { const struct regulator_desc *desc; struct regulator_dev *rdev; const struct bd718xx_regulator_data *r; - r = &pmic_regulators[mfd->chip.chip_type].r_datas[i]; + r = &pmic_regulators[chip].r_datas[i]; desc = &r->desc; config.dev = pdev->dev.parent; @@ -1281,11 +1282,19 @@ static int bd718xx_probe(struct platform_device *pdev) return err; } +static const struct platform_device_id bd718x7_pmic_id[] = { + { "bd71837-pmic", ROHM_CHIP_TYPE_BD71837 }, + { "bd71847-pmic", ROHM_CHIP_TYPE_BD71847 }, + { }, +}; +MODULE_DEVICE_TABLE(platform, bd718x7_pmic_id); + static struct platform_driver bd718xx_regulator = { .driver = { .name = "bd718xx-pmic", }, .probe = bd718xx_probe, + .id_table = bd718x7_pmic_id, }; module_platform_driver(bd718xx_regulator); diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h index bff15ac26f2c..922f88008232 100644 --- a/include/linux/mfd/rohm-generic.h +++ b/include/linux/mfd/rohm-generic.h @@ -4,7 +4,7 @@ #ifndef __LINUX_MFD_ROHM_H__ #define __LINUX_MFD_ROHM_H__ -enum { +enum rohm_chip_type { ROHM_CHIP_TYPE_BD71837 = 0, ROHM_CHIP_TYPE_BD71847, ROHM_CHIP_TYPE_BD70528, @@ -12,7 +12,6 @@ enum { }; struct rohm_regmap_dev { - unsigned int chip_type; struct device *dev; struct regmap *regmap; };