From patchwork Tue Mar 10 17:00:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 11429947 X-Patchwork-Delegate: daniel.lezcano@linaro.org Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7446F14B7 for ; Tue, 10 Mar 2020 17:01:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4FB2A222C4 for ; Tue, 10 Mar 2020 17:01:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726716AbgCJRBX (ORCPT ); Tue, 10 Mar 2020 13:01:23 -0400 Received: from bin-mail-out-05.binero.net ([195.74.38.228]:28504 "EHLO bin-mail-out-05.binero.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727138AbgCJRBX (ORCPT ); Tue, 10 Mar 2020 13:01:23 -0400 X-Halon-ID: bf03e7c3-62f0-11ea-aa6d-005056917f90 Authorized-sender: niklas@soderlund.pp.se Received: from bismarck.berto.se (p4fca2392.dip0.t-ipconnect.de [79.202.35.146]) by bin-vsp-out-02.atm.binero.net (Halon) with ESMTPA id bf03e7c3-62f0-11ea-aa6d-005056917f90; Tue, 10 Mar 2020 18:01:12 +0100 (CET) From: =?utf-8?q?Niklas_S=C3=B6derlund?= To: linux-pm@vger.kernel.org, linux-renesas-soc@vger.kernel.org Cc: =?utf-8?q?Niklas_S=C3=B6derlund?= Subject: [PATCH 3/3] thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp() Date: Tue, 10 Mar 2020 18:00:29 +0100 Message-Id: <20200310170029.1648996-4-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200310170029.1648996-1-niklas.soderlund+renesas@ragnatech.se> References: <20200310170029.1648996-1-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org With the ctemp value returned instead of cached in the private data structure their is no need to take the lock when translating ctemp into a temperature. Signed-off-by: Niklas Söderlund Reviewed-by: Geert Uytterhoeven --- drivers/thermal/rcar_thermal.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 953dc28d1dd1d499..8bdcb449bd280a18 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -254,24 +254,20 @@ static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv) static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv, int *temp) { - int ctemp, tmp; + int ctemp; ctemp = rcar_thermal_update_temp(priv); if (ctemp < 0) return ctemp; - mutex_lock(&priv->lock); + /* Guaranteed operating range is -45C to 125C. */ + if (priv->chip->ctemp_bands == 1) - tmp = MCELSIUS((ctemp * 5) - 65); + *temp = MCELSIUS((ctemp * 5) - 65); else if (ctemp < 24) - tmp = MCELSIUS(((ctemp * 55) - 720) / 10); + *temp = MCELSIUS(((ctemp * 55) - 720) / 10); else - tmp = MCELSIUS((ctemp * 5) - 60); - mutex_unlock(&priv->lock); - - /* Guaranteed operating range is -45C to 125C. */ - - *temp = tmp; + *temp = MCELSIUS((ctemp * 5) - 60); return 0; }