From patchwork Fri Dec 22 09:32:18 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 10129401 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3BBB86056E for ; Fri, 22 Dec 2017 09:39:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3392A29FCA for ; Fri, 22 Dec 2017 09:39:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 286562A022; Fri, 22 Dec 2017 09:39:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B4E5E2A023 for ; Fri, 22 Dec 2017 09:39:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=Lezbg18iXsKgZvIqda7gNBfAh3qkQ+ecrOJmN54q6Ns=; b=lCTz3M7FZY4yyzkQGAc+j9T/wD mc5fd3bfRiGdGE5RWuj9Tj9WbypiTSXxmwKKKAM0j+QKheEAv+HbB+TVIZu3SskiS/BOnL2qOVyVe LATi4QYjCVEI9wf5OKuZJxHQT5hPMOHkFjcSftS6MvkDBoeevOdNbt3fCmSSl3aEz7xAbhfp+8QwZ GzjT5kuv4/WqGG3VS22pry0CjVeXdcRxskqbynjZ6a5xr34iY6lj2rLmJhoHXpIe69zqcnSk/nbgn v/zZYVaeQ/+JzTp3f8SjnTDXl5IRU8lf1g0VbHXp30hgqJxLW8llcEw0JIB1d8v/p70rqO2q0nHFV C9RYh0vA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1eSJnh-0007qp-9F; Fri, 22 Dec 2017 09:39:33 +0000 Received: from mail.free-electrons.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1eSJhQ-0002zT-CS for linux-arm-kernel@lists.infradead.org; Fri, 22 Dec 2017 09:33:28 +0000 Received: by mail.free-electrons.com (Postfix, from userid 110) id 2814D2092B; Fri, 22 Dec 2017 10:32:42 +0100 (CET) Received: from localhost.localdomain (LStLambert-657-1-97-87.w90-63.abo.wanadoo.fr [90.63.216.87]) by mail.free-electrons.com (Postfix) with ESMTPSA id 10021203A6; Fri, 22 Dec 2017 10:32:30 +0100 (CET) From: Miquel Raynal To: Zhang Rui , Eduardo Valentin , Rob Herring , Mark Rutland Subject: [PATCH v6 03/11] thermal: armada: Simplify the check of the validity bit Date: Fri, 22 Dec 2017 10:32:18 +0100 Message-Id: <20171222093226.23456-4-miquel.raynal@free-electrons.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171222093226.23456-1-miquel.raynal@free-electrons.com> References: <20171222093226.23456-1-miquel.raynal@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20171222_013305_614228_7B5C9A45 X-CRM114-Status: GOOD ( 13.78 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Petazzoni , devicetree@vger.kernel.org, Baruch Siach , linux-pm@vger.kernel.org, Antoine Tenart , Nadav Haklai , David Sniatkiwicz , Miquel Raynal , Gregory Clement , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP All Armada SoCs use one bit to declare if the sensor values are valid. This bit moves across the versions of the IP. The method until then was to do both a shift and compare with an useless flag of "0x1". It is clearer and quicker to directly save the value that must be ANDed instead of the bit position and do a single bitwise AND operation. Signed-off-by: Miquel Raynal Reviewed-by: Gregory CLEMENT --- drivers/thermal/armada_thermal.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c index 6c4af2622d4f..f350d7efd35a 100644 --- a/drivers/thermal/armada_thermal.c +++ b/drivers/thermal/armada_thermal.c @@ -24,8 +24,6 @@ #include #include -#define THERMAL_VALID_MASK 0x1 - /* Thermal Manager Control and Status Register */ #define PMU_TDC0_SW_RST_MASK (0x1 << 1) #define PMU_TM_DISABLE_OFFS 0 @@ -67,7 +65,7 @@ struct armada_thermal_data { /* Register shift and mask to access the sensor temperature */ unsigned int temp_shift; unsigned int temp_mask; - unsigned int is_valid_shift; + u32 is_valid_bit; }; static void armadaxp_init_sensor(struct platform_device *pdev, @@ -149,9 +147,9 @@ static void armada380_init_sensor(struct platform_device *pdev, static bool armada_is_valid(struct armada_thermal_priv *priv) { - unsigned long reg = readl_relaxed(priv->sensor); + u32 reg = readl_relaxed(priv->sensor); - return (reg >> priv->data->is_valid_shift) & THERMAL_VALID_MASK; + return reg & priv->data->is_valid_bit; } static int armada_get_temp(struct thermal_zone_device *thermal, @@ -199,7 +197,7 @@ static const struct armada_thermal_data armadaxp_data = { static const struct armada_thermal_data armada370_data = { .is_valid = armada_is_valid, .init_sensor = armada370_init_sensor, - .is_valid_shift = 9, + .is_valid_bit = BIT(9), .temp_shift = 10, .temp_mask = 0x1ff, .coef_b = 3153000000UL, @@ -210,7 +208,7 @@ static const struct armada_thermal_data armada370_data = { static const struct armada_thermal_data armada375_data = { .is_valid = armada_is_valid, .init_sensor = armada375_init_sensor, - .is_valid_shift = 10, + .is_valid_bit = BIT(10), .temp_shift = 0, .temp_mask = 0x1ff, .coef_b = 3171900000UL, @@ -221,7 +219,7 @@ static const struct armada_thermal_data armada375_data = { static const struct armada_thermal_data armada380_data = { .is_valid = armada_is_valid, .init_sensor = armada380_init_sensor, - .is_valid_shift = 10, + .is_valid_bit = BIT(10), .temp_shift = 0, .temp_mask = 0x3ff, .coef_b = 1172499100UL,