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 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 5ECDEE81E1F for ; Fri, 6 Oct 2023 18:24:59 +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:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=gcQXiW32FWcKbIx4Gfr7wMlJ1ms/kNej7VltsOuGY0s=; b=SAW9OZKl94bQl5 u7Jv6gcP6K8fmADSxyrjphPAJP8OJ1HwrixZqye3djv38+FlwbzySHb2OjvFof1goNbSjPqhf7rQ4 m60PtEvFQwvcY/QvzTkyxl6Udxw1retzsDKmHnyqiiN1eU6rf2pI/oefRlebnS5am+sfVuStBJmQk OK/QXkSTc6zZ9JVpmoCYRrxQDpVlEq7YOTMIu+D+aZl3P17DL9bEM3g7bDpcbkWyz7+4cJGhtp0I6 WeHl8avohcY5CefEX1Hdl0hjqlst+NNAFoWyhPxrozWK1seIdXqNgHx8jkFbM+GSczSNpFETFWW0+ pFbhTFS8inUo7NECOt+g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qopVG-006JME-0L; Fri, 06 Oct 2023 18:24:46 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qopVC-006JK6-24; Fri, 06 Oct 2023 18:24:43 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by ams.source.kernel.org (Postfix) with ESMTP id F10C1B829FB; Fri, 6 Oct 2023 18:24:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D67D8C433B9; Fri, 6 Oct 2023 18:24:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1696616678; bh=XMRbzsY9A1FpB7Vearw0HGHjviPa4Dpe+NZgXwP5iv4=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ZSahHaYaKVg4WEtqzwfvKNNUo0gzDdfLcPymxZt3Qn2Q7bcl5pfMEogdU4o/nZYur J6fuaWBP8lUXAvd1XfDJEVlHmCLJkKJM8FGNTuulgNI0UJ991JCaP/p4kVQ2aMw6UP EjwzCcoVGxlSMlD2wQzV+Xj2kjwUaAT2ePHEmBkqOQ3Ui9d50v5+KY4hs1FurXmohF uBOo4+sZgm1J2DWEEhGGnjRo2tSaH4Nr7uUYRTZjOsVshfCw2W8d0ZHGYzo+CapYoh vTQT8jDYtaj3SjJ0Z5W4GY8Fu1bGxnbgNW0THGzh5pLq3B6CjhB34RIGsNxFDhg7b3 TqntO7l2Ly4Ag== Message-ID: Date: Sat, 7 Oct 2023 03:24:33 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH v7 11/26] PM / devfreq: rockchip-dfi: Handle LPDDR2 correctly Content-Language: en-US To: Sascha Hauer , linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Jonathan Cameron References: <20230704093242.583575-1-s.hauer@pengutronix.de> <20230704093242.583575-12-s.hauer@pengutronix.de> From: Chanwoo Choi In-Reply-To: <20230704093242.583575-12-s.hauer@pengutronix.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231006_112442_805779_5486F5A5 X-CRM114-Status: GOOD ( 18.54 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org On 23. 7. 4. 18:32, Sascha Hauer wrote: > 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. > > Reviewed-by: Jonathan Cameron > Reviewed-by: Sebastian Reichel > 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 261d112580c9e..16cd5365671f7 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) > DDRMON_CTRL_HARDWARE_EN), 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), Acked-by: Chanwoo Choi -- Best Regards, Samsung Electronics Chanwoo Choi _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip