From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 61BD8C43215 for ; Thu, 28 Nov 2019 14:59:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 39E6421771 for ; Thu, 28 Nov 2019 14:59:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=rasmusvillemoes.dk header.i=@rasmusvillemoes.dk header.b="KWe7360w" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727781AbfK1O7i (ORCPT ); Thu, 28 Nov 2019 09:59:38 -0500 Received: from mail-lj1-f194.google.com ([209.85.208.194]:46787 "EHLO mail-lj1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727378AbfK1O5f (ORCPT ); Thu, 28 Nov 2019 09:57:35 -0500 Received: by mail-lj1-f194.google.com with SMTP id e9so28811081ljp.13 for ; Thu, 28 Nov 2019 06:57:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rasmusvillemoes.dk; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=JWyaIwq9mdmvZ/JuYUnZiMulaql+3s1ZVx5WN7km3uw=; b=KWe7360wBhzV77hKN+t349b+mPvaiilCDUxIUxULEYnN/2BFgQPleVjKrpxA4uHfHL BIRRBKcwfnATFr4REC7warrEOdFOAngsSQ5yxOQM9UaBYWHHFb8ZpUZqId/xsdBpRG25 5xPHs3YpJ4keFEuArLXA40it4ZOh1rVS3sVPI= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=JWyaIwq9mdmvZ/JuYUnZiMulaql+3s1ZVx5WN7km3uw=; b=Yu5OITZ7FViJa8hJVWFTiVdYKPzAG2Yv4CWYVWn315LghTBYvfBijPt5JpiHTAqxfP Qutk+X4UjKgseaOklPzE4FvK1Rr3yEMiHm2AAnkA30Z21jbttBLm6rNhfpPDQnqxFvhF vte4BAB0WYsDX7vv0VfMmznVr64vz1mPuX50ZV3vMXTaC2rGJFgxshJfLGWYSq718PbR DGGywMkEYj3d/aKeL2tyGNhM7go+RKPQhVG8+6zPyqH8PdWEBHJEo0Yt9zYwwb3jLL/4 y04iWwlpaIenS5fPVch2wPEGBdzrf++21TTcnUJyzVNvTSTxQaDjvCeN7HZkBZ6ymueM TU8w== X-Gm-Message-State: APjAAAW13gsOqjoHyjPM9IRJ4CnAn6/v9gBmS/VDcawD9nSUSNhqGDVU y64Kzqko8nyA50mq2pwhqb6zvQ== X-Google-Smtp-Source: APXvYqyVDq6NQJ2Y1gdqv1S8h+9+Uo9oKx4Z5PDYEkDUD5ZetIxhlvatqxTyxBBUOdBPmmbBkDpi6Q== X-Received: by 2002:a2e:b5b8:: with SMTP id f24mr33941792ljn.188.1574953053452; Thu, 28 Nov 2019 06:57:33 -0800 (PST) Received: from prevas-ravi.prevas.se ([81.216.59.226]) by smtp.gmail.com with ESMTPSA id u2sm2456803lfl.18.2019.11.28.06.57.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Nov 2019 06:57:33 -0800 (PST) From: Rasmus Villemoes To: Qiang Zhao , Li Yang , Christophe Leroy Cc: linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Scott Wood , Timur Tabi , Rasmus Villemoes Subject: [PATCH v6 22/49] soc: fsl: qe: qe.c: use of_property_read_* helpers Date: Thu, 28 Nov 2019 15:55:27 +0100 Message-Id: <20191128145554.1297-23-linux@rasmusvillemoes.dk> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191128145554.1297-1-linux@rasmusvillemoes.dk> References: <20191128145554.1297-1-linux@rasmusvillemoes.dk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Instead of manually doing of_get_property/of_find_property and reading the value by assigning to a u32* or u64* and dereferencing, use the of_property_read_* functions. This make the code more readable, and more importantly, is required for this to work correctly on little-endian platforms. Reviewed-by: Timur Tabi Signed-off-by: Rasmus Villemoes --- drivers/soc/fsl/qe/qe.c | 33 ++++++++------------------------- 1 file changed, 8 insertions(+), 25 deletions(-) diff --git a/drivers/soc/fsl/qe/qe.c b/drivers/soc/fsl/qe/qe.c index a4763282ea68..ec511840db3c 100644 --- a/drivers/soc/fsl/qe/qe.c +++ b/drivers/soc/fsl/qe/qe.c @@ -159,8 +159,7 @@ static unsigned int brg_clk = 0; unsigned int qe_get_brg_clk(void) { struct device_node *qe; - int size; - const u32 *prop; + u32 brg; unsigned int mod; if (brg_clk) @@ -170,9 +169,8 @@ unsigned int qe_get_brg_clk(void) if (!qe) return brg_clk; - prop = of_get_property(qe, "brg-frequency", &size); - if (prop && size == sizeof(*prop)) - brg_clk = *prop; + if (!of_property_read_u32(qe, "brg-frequency", &brg)) + brg_clk = brg; of_node_put(qe); @@ -571,11 +569,9 @@ EXPORT_SYMBOL(qe_upload_firmware); struct qe_firmware_info *qe_get_firmware_info(void) { static int initialized; - struct property *prop; struct device_node *qe; struct device_node *fw = NULL; const char *sprop; - unsigned int i; /* * If we haven't checked yet, and a driver hasn't uploaded a firmware @@ -609,20 +605,11 @@ struct qe_firmware_info *qe_get_firmware_info(void) strlcpy(qe_firmware_info.id, sprop, sizeof(qe_firmware_info.id)); - prop = of_find_property(fw, "extended-modes", NULL); - if (prop && (prop->length == sizeof(u64))) { - const u64 *iprop = prop->value; - - qe_firmware_info.extended_modes = *iprop; - } + of_property_read_u64(fw, "extended-modes", + &qe_firmware_info.extended_modes); - prop = of_find_property(fw, "virtual-traps", NULL); - if (prop && (prop->length == 32)) { - const u32 *iprop = prop->value; - - for (i = 0; i < ARRAY_SIZE(qe_firmware_info.vtraps); i++) - qe_firmware_info.vtraps[i] = iprop[i]; - } + of_property_read_u32_array(fw, "virtual-traps", qe_firmware_info.vtraps, + ARRAY_SIZE(qe_firmware_info.vtraps)); of_node_put(fw); @@ -633,17 +620,13 @@ EXPORT_SYMBOL(qe_get_firmware_info); unsigned int qe_get_num_of_risc(void) { struct device_node *qe; - int size; unsigned int num_of_risc = 0; - const u32 *prop; qe = qe_get_device_node(); if (!qe) return num_of_risc; - prop = of_get_property(qe, "fsl,qe-num-riscs", &size); - if (prop && size == sizeof(*prop)) - num_of_risc = *prop; + of_property_read_u32(qe, "fsl,qe-num-riscs", &num_of_risc); of_node_put(qe); -- 2.23.0