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 92187CDB47E for ; Wed, 18 Oct 2023 15:07:16 +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=XpuL42MAZ2xC1sBAZgWhMMzM5Al1ujM7gnX4+Kl8910=; b=MuehwUZcaKsGMl eI1R05/PUV7tPzsQQlbXeVruZYIsYUrGDqxaD+/OsO15ZhCr/wWinsR7ROFsc5/BpixaJet0wMasJ TrKHluraNcYlsi1cawMMxfSjehhjB7q6Bpa9/2D2BBpBTjPOW36SMQxXFesf5cJmdmZJlC7F4ZEid Bqq4ylK4zUtTO9AUNOvB83gnL/hAMJ6wuAm5UQlZKaBHYT9kwWkvjBlMrhVAfuiYvPREyUDx1qlJW KoYiBuLEr2zImGtQBNXO67CmQgAxptwNEYGmCOM1MIObBfGNaApVERpHfxUhxt3qzj6f0h6umEZ34 Js5szV2VA1MjsCivBTMQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qt88J-00EzWO-0d; Wed, 18 Oct 2023 15:06:51 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qt88G-00EzVQ-11; Wed, 18 Oct 2023 15:06:49 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id A73EBCE10E3; Wed, 18 Oct 2023 15:06:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44B40C433C7; Wed, 18 Oct 2023 15:06:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1697641605; bh=KnA7zFpFIl0gSz7qkNqGqWHblOvAj6N6q/W+BHe+eQw=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=kK8ExdXVtOOjl7Fx+mzoMS+qIkBWE4ob9vQGiBLMaV31jC8e6bFAbE2uYkJ0W+ukk ZQoFtiHg/yEggnDaQfTnDmEepFGEX69N/rxUVn/Cn2Pi1zQ5RNmbx3wP3ZMO+xArZ6 iHsfOq3qPZcpWXtpA/Eu48qDF/EtRDXgC50px0uIalWs6fPe/FXk1ld7CJPw7YPnTI ZvXwSnLrZOEApCBae7B8udYh9r2V6HdfKHutmn0QfleSFm5rT5iuapq1b95ZB+WKZO rXzGzf/v17y8MVM2FZB4qRT79pCUecrb/q8eTVZPSHzSPARbwyZMRy0S/KoRn3okjz zKfDWLo6Km3QQ== Message-ID: Date: Thu, 19 Oct 2023 00:06:43 +0900 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 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 , Chanwoo Choi References: <20231018061714.3553817-1-s.hauer@pengutronix.de> <20231018061714.3553817-12-s.hauer@pengutronix.de> From: Chanwoo Choi In-Reply-To: <20231018061714.3553817-12-s.hauer@pengutronix.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231018_080648_698547_CBF7F767 X-CRM114-Status: GOOD ( 17.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 23. 10. 18. 15:16, 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 > Acked-by: Chanwoo Choi > 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 571d72d1abd1c..8ce0191552ef1 100644 > --- a/drivers/devfreq/event/rockchip-dfi.c > +++ b/drivers/devfreq/event/rockchip-dfi.c > @@ -83,12 +83,19 @@ 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-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel