From patchwork Mon Aug 19 14:28:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13768436 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 595261741DC; Mon, 19 Aug 2024 14:29:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724077799; cv=none; b=Xo37jqNAMXakX7qFr/WgKrLVz0ps4rY1feoh74n4K4/aay6bsla7KtI4Z/GUyLEqGSRZoLA+LjdeSbyzSc3Fx7SqASfATo879wB00ZclbtMaoWmfuMuICYhb4ajH0c0mRHEYP5/XKv9PU3r+CuZfZnYqNh+ein5gwNwCHVnEAFQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724077799; c=relaxed/simple; bh=rFuwdwcbQYp8sy5sHNy4OFa8J5BoSjowDcZF++YteB0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GSfmwq8KJfuUbI4mnbjOfnlcmy+WsZIZkZ2gXE+E0leBEofsFkZFLVmqnH6TPNM265AkWVmFZfS6tz7RLPTfaBbMsAJzRr1vV3TCSuuDKp0EshkolK0EGKtEjs8Ju1cnjywAK9TQfoXDfij4pCieDpXk/9qToF9mZvXTvfNASK8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Z/jZa4U7; arc=none smtp.client-ip=192.198.163.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Z/jZa4U7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1724077798; x=1755613798; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=rFuwdwcbQYp8sy5sHNy4OFa8J5BoSjowDcZF++YteB0=; b=Z/jZa4U7qKrEQEAZIq8tBewCE/GgEhSjdXo0BgB6OQUZ1yg+CGcvgMDu bNw13pBAgRr4jMW6vy3RXuXWCl8gn7cZGNN2jKrvLjkYm0+VecA7eVQVP OBn8zbZn+oa1ElV0JZixO3Yw88aH2Y6+nowkFYB4z9ihz2NM3d34rufty gfaRuSN2q9JxQBQcwlGB2vC4uQ2dQRIHfa+sJwPENBBm/ZkpObMQGOelF GsHFAybr3oJsyXdjckR546ZrYILttqayVO1b8rrSriGRfCptGMSNqhakk sLuexj+mOe2mlKZCsnS0Ubd85EzkVMd67IufCFRPeLUB6bPcYM6o8Cgfa Q==; X-CSE-ConnectionGUID: dUHzdR+jR7idL1cluImErQ== X-CSE-MsgGUID: nkQf8t19RA2vvJSKkWeMgQ== X-IronPort-AV: E=McAfee;i="6700,10204,11169"; a="33744485" X-IronPort-AV: E=Sophos;i="6.10,159,1719903600"; d="scan'208";a="33744485" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Aug 2024 07:29:53 -0700 X-CSE-ConnectionGUID: h1FjunUMQgmIcbwYzZk/0A== X-CSE-MsgGUID: kmiOfzEQQLiS4F+RL2FwCg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.10,159,1719903600"; d="scan'208";a="64783797" Received: from black.fi.intel.com ([10.237.72.28]) by fmviesa005.fm.intel.com with ESMTP; 19 Aug 2024 07:29:50 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id 505A15CF; Mon, 19 Aug 2024 17:29:49 +0300 (EEST) From: Andy Shevchenko To: Andy Shevchenko , Bartosz Golaszewski , linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Linus Walleij , Bartosz Golaszewski Subject: [PATCH v2 3/5] gpiolib: swnode: Introduce swnode_gpio_get_reference() helper Date: Mon, 19 Aug 2024 17:28:58 +0300 Message-ID: <20240819142945.327808-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1336.g36b5255a03ac In-Reply-To: <20240819142945.327808-1-andriy.shevchenko@linux.intel.com> References: <20240819142945.327808-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Instead of the spreading simlar code over the file, introduce a helper. It also enforces the nargs validation for all GPIO software node APIs. Signed-off-by: Andy Shevchenko --- drivers/gpio/gpiolib-swnode.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/gpio/gpiolib-swnode.c b/drivers/gpio/gpiolib-swnode.c index e7ba6cc73966..d5e58a9673b5 100644 --- a/drivers/gpio/gpiolib-swnode.c +++ b/drivers/gpio/gpiolib-swnode.c @@ -59,6 +59,17 @@ static struct gpio_device *swnode_get_gpio_device(struct fwnode_handle *fwnode) return gdev ?: ERR_PTR(-EPROBE_DEFER); } +static int swnode_gpio_get_reference(const struct fwnode_handle *fwnode, + const char *propname, unsigned int idx, + struct fwnode_reference_args *args) +{ + /* + * We expect all swnode-described GPIOs have GPIO number and + * polarity arguments, hence nargs is set to 2. + */ + return fwnode_property_get_reference_args(fwnode, propname, NULL, 2, idx, args); +} + struct gpio_desc *swnode_find_gpio(struct fwnode_handle *fwnode, const char *con_id, unsigned int idx, unsigned long *flags) @@ -75,11 +86,7 @@ struct gpio_desc *swnode_find_gpio(struct fwnode_handle *fwnode, swnode_format_propname(con_id, propname, sizeof(propname)); - /* - * We expect all swnode-described GPIOs have GPIO number and - * polarity arguments, hence nargs is set to 2. - */ - ret = fwnode_property_get_reference_args(fwnode, propname, NULL, 2, idx, &args); + ret = swnode_gpio_get_reference(fwnode, propname, idx, &args); if (ret) { pr_debug("%s: can't parse '%s' property of node '%pfwP[%d]'\n", __func__, propname, fwnode, idx); @@ -128,8 +135,7 @@ int swnode_gpio_count(const struct fwnode_handle *fwnode, const char *con_id) * 1 or 2 entries. */ count = 0; - while (fwnode_property_get_reference_args(fwnode, propname, NULL, 0, - count, &args) == 0) { + while (swnode_gpio_get_reference(fwnode, propname, count, &args) == 0) { fwnode_handle_put(args.fwnode); count++; }