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 7ED04C25B67 for ; Tue, 24 Oct 2023 01:48:00 +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:Date:To:Cc:From:Subject:References: In-Reply-To:MIME-Version:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Y8rq5vRU6/m+JCekln0yxmY1xnmGxryccZWQKjHfV74=; b=FfyHrzqlDaxAPC ilbxwA6y2wcFQs0Q1+r2d0I6iS8LPEBrc+2WtQ/6VnKOggYwwrheIGZblgfbarZndHKsBiLL+uqzU nXsATCFzglh+SKqSrM0y+5Ejfv/VJAaqs+AWgjC3q8zP6uyZLJtZRvKWHb4fH1oVgiJ0Td15rV8k6 0MczaphBU7WoSU2fZ2EntiuNaBJd46sCi0TnUNv9k5cpzcclkv2cy3NfNUwGkyY/EJM2i1kvAj1WP 1yUEZBIhCMfuHKQ8+M760KHaEHFRcgeyZR8OMZHallFkdr5++qriRNMLgTvDz/cPSy/0x8iW/PZOD 1H/5pMwYVhVH05G/sP3Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qv6Vy-008bsC-39; Tue, 24 Oct 2023 01:47:26 +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 1qv6Vw-008brB-1k; Tue, 24 Oct 2023 01:47:25 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by ams.source.kernel.org (Postfix) with ESMTP id 7FE9FB81F54; Tue, 24 Oct 2023 01:47:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 06A4DC433C8; Tue, 24 Oct 2023 01:47:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1698112040; bh=mO3XCjY6Z0lxeyk7f7BJMy9qpCv7zZnFBymSDfJlDWg=; h=In-Reply-To:References:Subject:From:Cc:To:Date:From; b=rJrG57SVlu4spNUaY4iPdXEtxyYZWOT7fb29l8P8JM4S/7pxetWDhYqsyNO7EXbcw EatHJxOfWwk1Ff5Cm0x8u3BcMC3SMQEjmjilYtr1E47o5xQqqjDXMxbq/Xx22j9h1x wLZdOBAWHS2eHUTXGjmngNvEBpHeQ3X64sFDAQIF+Fk7QsY+W0DJkqYbcHs4Y9jBj8 KYbPF5PJ5p2cXY9jc1mLAsgkjxLFcTp6R8acJdM1bX3dycKdM0Tl82elIXlAPcSirv VrbX4bQ25xCAGTX+Mu6765zvmIw0kcr/Z57pqYRqGmufMCRrPwacnMq17dmjEPUwbA 1byHUuCsyROTA== Message-ID: MIME-Version: 1.0 In-Reply-To: <20231018070144.8512-1-zhangqing@rock-chips.com> References: <20231018070144.8512-1-zhangqing@rock-chips.com> Subject: Re: [PATCH v4 0/4] rockchip: add GATE_LINK From: Stephen Boyd Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, huangtao@rock-chips.com, andy.yan@rock-chips.com To: conor+dt@kernel.org, heiko@sntech.de, kever.yang@rock-chips.com, krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com, robh+dt@kernel.org, zhangqing@rock-chips.com Date: Mon, 23 Oct 2023 18:47:17 -0700 User-Agent: alot/0.10 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231023_184724_792174_FC3889CC X-CRM114-Status: UNSURE ( 5.83 ) X-CRM114-Notice: Please train this message. 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 Quoting Elaine Zhang (2023-10-18 00:01:40) > Recent Rockchip SoCs have a new hardware block called Native Interface > Unit (NIU), which gates clocks to devices behind them. These effectively > need two parent clocks. > Use GATE_LINK to handle this. Why can't pm clks be used here? The qcom clk driver has been doing that for some time now. $ git grep pm_clk_add -- drivers/clk/qcom/ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel