From patchwork Mon Sep 2 14:39:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 11126847 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 71B0C1398 for ; Mon, 2 Sep 2019 14:41:03 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4FB7E21670 for ; Mon, 2 Sep 2019 14:41:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bBYR1Rcv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4FB7E21670 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kleine-koenig.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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:In-Reply-To:References: List-Owner; bh=4uBrSjTFJV3rDzlfh/iM4EQDIFSX0vQSyNe+bC2+ZF0=; b=bBYR1Rcve7J1zO 6aL53ThpcOLq9x8nh0HZefNqojPTefZrCofxNG5rrYkqcX4TcZISiN1qLBf8RPhJ7rwxgMuoziwIB gnXQZ2oPMXfPVvRUXMvdJYDHE5khwJwCgfS8WhpZl1quqC8+NeW4Zp7acZVyvYuvRhYn55NUi+Y64 ABXSHrxsOXxuNnxl8jx6LTnt+1uWJH6hLum+aTHyXEkhIZx4wZBxj5xWL/XmMjSDGDnUmtDGrooE+ 7gHBrB8o8JNWRITnnMujMt2kXYk94f0LvBDb18vHgeVRM+yuAVVYitfP5lwfz4hJxspVb7xEN6h7w OVZgbk1cjuFrR5yoXwZA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i4nVs-0006eq-7J; Mon, 02 Sep 2019 14:41:00 +0000 Received: from antares.kleine-koenig.org ([94.130.110.236]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i4nVj-0006XM-78; Mon, 02 Sep 2019 14:40:52 +0000 Received: by antares.kleine-koenig.org (Postfix, from userid 1000) id 007B0792C0D; Mon, 2 Sep 2019 16:40:45 +0200 (CEST) From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Thierry Reding , Heiko Stuebner Subject: [PATCH] pwm: rockchip: set polarity unconditionally in .get_state() Date: Mon, 2 Sep 2019 16:39:41 +0200 Message-Id: <20190902143941.10631-1-uwe@kleine-koenig.org> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190902_074051_409359_BBF3AE3C X-CRM114-Status: UNSURE ( 8.87 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [94.130.110.236 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org Don't rely on *state being zero initialized and PWM_POLARITY_NORMAL being zero. So always assign .polarity. Signed-off-by: Uwe Kleine-König --- drivers/pwm/pwm-rockchip.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c index 51b96cb7dd25..8eb2db59741d 100644 --- a/drivers/pwm/pwm-rockchip.c +++ b/drivers/pwm/pwm-rockchip.c @@ -90,10 +90,10 @@ static void rockchip_pwm_get_state(struct pwm_chip *chip, state->enabled = ((val & enable_conf) == enable_conf) ? true : false; - if (pc->data->supports_polarity) { - if (!(val & PWM_DUTY_POSITIVE)) - state->polarity = PWM_POLARITY_INVERSED; - } + if (pc->data->supports_polarity && !(val & PWM_DUTY_POSITIVE)) + state->polarity = PWM_POLARITY_INVERSED; + else + state->polarity = PWM_POLARITY_NORMAL; clk_disable(pc->pclk); }