From patchwork Wed Feb 8 09:38:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13132837 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 2E65AC636D3 for ; Wed, 8 Feb 2023 09:54:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/kJBpUHZfl/uRL604gejW1YthpmH828hD0T0tEBt16U=; b=jZWDHnnSIy2/lv +YVZyTcZWIUzrLEu+OB8gRsKTtM3FtJKEDJzsRw4Tg5oAPgAcelLarshhnImgmrVPswIw83zBu0Tt GVzq1BvSxH4EuNVc5cGcDVlNrwSJiuAgVaF33I9ESpWWM0JBBUhas77HNa1qDC/8z1CNGpfjyS/t3 9LE7RBd7wbaiHiDhXKjX08dyW+cXX8P4VakMBdawa18PveQ+QEUiyC41qCXUcua7EO10T2hAfBVtf SVsuiSFnO9AxB062kLranjCbnRO9605zOWr1UUHbRq2p0TiC+7/NtFMukYA7UoEEgGxSdNmVwJCMk W1hlMJ99BskgQ5VZshTg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pPh9f-00F27q-TC; Wed, 08 Feb 2023 09:54:19 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pPgun-00EvE9-6v for linux-rockchip@bombadil.infradead.org; Wed, 08 Feb 2023 09:38:57 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=tO7L30COLopTwSoFuFc7gR8V+WliKpcYmxyvNMKZ50Q=; b=ED93f7QFFUZmX2270wRG9DyqnV mZ1eAXjb9kn3WfTAMqXQjxzarZ17c0ByfXC0pHNQj3GzdgVI3WxZRXZXWWCLwTaKwTRAbfg8h+Gd9 vZV8l6K/d/cAq3ukZkY1IfTSBm5zHN0a1/oAD8tk/1iGGP/VUiAm2T9Wc+n6YYZ4d+6hgV1Sm1rnm cCPPllUczTgorwwPjY9nchjqfIPmOLbnMBiymzM97eg7OYDzTsu9e6Dlw5gozgMOT4n7MDPj8Y/oW pZ9Ze+T7PWmLFW8dvzPw4kSJlTRuY506zqv46K8UKzeA946m9ObFC8YLIm6fqe1RMpeB1f/jJMvJP FQdGCi/w==; Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pPgu1-007KBw-1Q for linux-rockchip@lists.infradead.org; Wed, 08 Feb 2023 09:38:17 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pPguV-0003Cc-UT; Wed, 08 Feb 2023 10:38:39 +0100 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pPguT-003UB7-VH; Wed, 08 Feb 2023 10:38:39 +0100 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pPguQ-000s8u-Ol; Wed, 08 Feb 2023 10:38:34 +0100 From: Sascha Hauer To: linux-pm@vger.kernel.org Cc: linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Sascha Hauer Subject: [PATCH v2 11/19] PM / devfreq: rockchip-dfi: Handle LPDDR2 correctly Date: Wed, 8 Feb 2023 10:38:22 +0100 Message-Id: <20230208093830.143284-12-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230208093830.143284-1-s.hauer@pengutronix.de> References: <20230208093830.143284-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-rockchip@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230208_093809_649925_358579FA X-CRM114-Status: GOOD ( 14.86 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org According to the downstream driver the DDRMON_CTRL_LPDDR23 bit must be set for both LPDDR2 and LPDDR3. Add the missing LPDDR2 case and while at it turn the if/else if/else into switch/case which makes it easier to read. Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 78cb594bd2a81..92ee61c96a1a9 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -82,12 +82,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(HIWORD_UPDATE(0, 0xffff), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) + break; + case ROCKCHIP_DDRTYPE_LPDDR4: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); + break; + default: + break; + } /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN),