From patchwork Tue Mar 29 15:29:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 12794996 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4D0DEC433EF for ; Tue, 29 Mar 2022 15:29:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238591AbiC2PbA (ORCPT ); Tue, 29 Mar 2022 11:31:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236559AbiC2Pa7 (ORCPT ); Tue, 29 Mar 2022 11:30:59 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B5D32F65E6; Tue, 29 Mar 2022 08:29:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1648567755; x=1680103755; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=mYAeAs1ohVyDPBCU0QuHZm0N5SN3KFllVFgiqjii/FI=; b=YvLJUf1mERkJ6XzucNX58muDfaUd06xIIs1QWFKN3Mo/Hq2el5/klPqK UHY/i4ZADcqoQBdGQwITQMHw0xnMyHpS6rcaN9yeKAkFGkDgn/Byy45sH xD8AWN/BFE0oPbIMiBREJevFn1iar6tDTkXYJn589ZC7EI4AJzRJXveLi 4SgGYOUfOpk6344rIMws+dx7YILtqEs9/G2d8dOO9pVEP5HUAiEoMfs2r kS1GK0AxypPOxLdI4bW0N84IgaVYqvW7kAApCatqbw3x3IWgVsH4QcbKe 8PXxZ/lddMglkjSy4YUuRDleH0Ih/Y2HHfmQqkb14Oo3DQW8ZOmMaOvZJ w==; X-IronPort-AV: E=McAfee;i="6200,9189,10301"; a="239207786" X-IronPort-AV: E=Sophos;i="5.90,220,1643702400"; d="scan'208";a="239207786" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Mar 2022 08:29:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,220,1643702400"; d="scan'208";a="604843157" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga008.fm.intel.com with ESMTP; 29 Mar 2022 08:29:08 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 33983228; Tue, 29 Mar 2022 18:29:29 +0300 (EEST) From: Andy Shevchenko To: Qianggui Song , Andy Shevchenko , Krzysztof Kozlowski , Fabien Dessenne , linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, linux-renesas-soc@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com Cc: Linus Walleij , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Avi Fishman , Tomer Maimon , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , Geert Uytterhoeven , Tomasz Figa , Sylwester Nawrocki , Alim Akhtar , Maxime Coquelin , Alexandre Torgue , Bartosz Golaszewski , Philipp Zabel Subject: [PATCH v2 04/13] pinctrl: stm32: Switch to use for_each_gpiochip_node() helper Date: Tue, 29 Mar 2022 18:29:17 +0300 Message-Id: <20220329152926.50958-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220329152926.50958-1-andriy.shevchenko@linux.intel.com> References: <20220329152926.50958-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Switch the code to use for_each_gpiochip_node() helper. While at it, in order to avoid additional churn in the future, switch to fwnode APIs where it makes sense. Signed-off-by: Andy Shevchenko Reviewed-by: Fabien Dessenne --- drivers/pinctrl/stm32/pinctrl-stm32.c | 72 ++++++++++++--------------- 1 file changed, 33 insertions(+), 39 deletions(-) diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index 4043a44211f0..3e2f1e3a84be 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -1215,13 +1216,12 @@ static const struct pinconf_ops stm32_pconf_ops = { .pin_config_dbg_show = stm32_pconf_dbg_show, }; -static int stm32_gpiolib_register_bank(struct stm32_pinctrl *pctl, - struct device_node *np) +static int stm32_gpiolib_register_bank(struct stm32_pinctrl *pctl, struct fwnode_handle *fwnode) { struct stm32_gpio_bank *bank = &pctl->banks[pctl->nbanks]; int bank_ioport_nr; struct pinctrl_gpio_range *range = &bank->range; - struct of_phandle_args args; + struct fwnode_reference_args args; struct device *dev = pctl->dev; struct resource res; int npins = STM32_GPIO_PINS_PER_BANK; @@ -1230,7 +1230,7 @@ static int stm32_gpiolib_register_bank(struct stm32_pinctrl *pctl, if (!IS_ERR(bank->rstc)) reset_control_deassert(bank->rstc); - if (of_address_to_resource(np, 0, &res)) + if (of_address_to_resource(to_of_node(fwnode), 0, &res)) return -ENODEV; bank->base = devm_ioremap_resource(dev, &res); @@ -1245,15 +1245,15 @@ static int stm32_gpiolib_register_bank(struct stm32_pinctrl *pctl, bank->gpio_chip = stm32_gpio_template; - of_property_read_string(np, "st,bank-name", &bank->gpio_chip.label); + fwnode_property_read_string(fwnode, "st,bank-name", &bank->gpio_chip.label); - if (!of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, i, &args)) { + if (!fwnode_property_get_reference_args(fwnode, "gpio-ranges", NULL, 3, i, &args)) { bank_nr = args.args[1] / STM32_GPIO_PINS_PER_BANK; bank->gpio_chip.base = args.args[1]; /* get the last defined gpio line (offset + nb of pins) */ npins = args.args[0] + args.args[2]; - while (!of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3, ++i, &args)) + while (!fwnode_property_get_reference_args(fwnode, "gpio-ranges", NULL, 3, ++i, &args)) npins = max(npins, (int)(args.args[0] + args.args[2])); } else { bank_nr = pctl->nbanks; @@ -1268,20 +1268,20 @@ static int stm32_gpiolib_register_bank(struct stm32_pinctrl *pctl, &pctl->banks[bank_nr].range); } - if (of_property_read_u32(np, "st,bank-ioport", &bank_ioport_nr)) + if (fwnode_property_read_u32(fwnode, "st,bank-ioport", &bank_ioport_nr)) bank_ioport_nr = bank_nr; bank->gpio_chip.base = bank_nr * STM32_GPIO_PINS_PER_BANK; bank->gpio_chip.ngpio = npins; - bank->gpio_chip.of_node = np; + bank->gpio_chip.fwnode = fwnode; bank->gpio_chip.parent = dev; bank->bank_nr = bank_nr; bank->bank_ioport_nr = bank_ioport_nr; spin_lock_init(&bank->lock); /* create irq hierarchical domain */ - bank->fwnode = of_node_to_fwnode(np); + bank->fwnode = fwnode; bank->domain = irq_domain_create_hierarchy(pctl->domain, 0, STM32_GPIO_IRQ_LINE, bank->fwnode, @@ -1418,7 +1418,7 @@ static int stm32_pctrl_create_pins_tab(struct stm32_pinctrl *pctl, int stm32_pctl_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - struct device_node *child; + struct fwnode_handle *child; const struct of_device_id *match; struct device *dev = &pdev->dev; struct stm32_pinctrl *pctl; @@ -1525,40 +1525,34 @@ int stm32_pctl_probe(struct platform_device *pdev) return -ENOMEM; i = 0; - for_each_available_child_of_node(np, child) { + for_each_gpiochip_node(dev, child) { struct stm32_gpio_bank *bank = &pctl->banks[i]; + struct device_node *np = to_of_node(child); - if (of_property_read_bool(child, "gpio-controller")) { - bank->rstc = of_reset_control_get_exclusive(child, - NULL); - if (PTR_ERR(bank->rstc) == -EPROBE_DEFER) { - of_node_put(child); - return -EPROBE_DEFER; - } - - bank->clk = of_clk_get_by_name(child, NULL); - if (IS_ERR(bank->clk)) { - if (PTR_ERR(bank->clk) != -EPROBE_DEFER) - dev_err(dev, - "failed to get clk (%ld)\n", - PTR_ERR(bank->clk)); - of_node_put(child); - return PTR_ERR(bank->clk); - } - i++; + bank->rstc = of_reset_control_get_exclusive(np, NULL); + if (PTR_ERR(bank->rstc) == -EPROBE_DEFER) { + fwnode_handle_put(child); + return -EPROBE_DEFER; } - } - for_each_available_child_of_node(np, child) { - if (of_property_read_bool(child, "gpio-controller")) { - ret = stm32_gpiolib_register_bank(pctl, child); - if (ret) { - of_node_put(child); - return ret; - } + bank->clk = of_clk_get_by_name(np, NULL); + if (IS_ERR(bank->clk)) { + if (PTR_ERR(bank->clk) != -EPROBE_DEFER) + dev_err(dev, "failed to get clk (%ld)\n", PTR_ERR(bank->clk)); + fwnode_handle_put(child); + return PTR_ERR(bank->clk); + } + i++; + } - pctl->nbanks++; + for_each_gpiochip_node(dev, child) { + ret = stm32_gpiolib_register_bank(pctl, child); + if (ret) { + fwnode_handle_put(child); + return ret; } + + pctl->nbanks++; } dev_info(dev, "Pinctrl STM32 initialized\n");