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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 887D9C4332F for ; Sun, 13 Mar 2022 00:08:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229579AbiCMAJk (ORCPT ); Sat, 12 Mar 2022 19:09:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39744 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231493AbiCMAJj (ORCPT ); Sat, 12 Mar 2022 19:09:39 -0500 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D544E27CE7 for ; Sat, 12 Mar 2022 16:08:32 -0800 (PST) Received: by mail-lf1-x130.google.com with SMTP id g17so21213351lfh.2 for ; Sat, 12 Mar 2022 16:08:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=KYzgaSIoD3CUDpG7/nAndp/gB6PTBNti3DSpjbFfIOU=; b=uS6KjdJ8aOypqEzEfQ/AUctalWXZJNVdzy5NBmgsNY3b5WQSGn/Z3fDcNlucyXegbs avaSqz1VSBYk29BSOYJKomVrteK530SbpH/LgLY5WDTyCYCngvSsIpBNrXwLJrqFhP+M /HtbRSgT4ctiK9MZPDZWB4Eu1oLNBNZDWZ0GJtUVcbIqSv2Y3VkC5W8Yx9s3KArFIcAd H9lqQI12A7JYy3p159bIy6MFBeOL28sJrgHuJqsjvbJ2ZfDN0gzEH2vYGhW5foBRsbQv mdlnMv2Rp2HTXK0b5GkT1dDrQI+2ZsCZQALX0ZIRWHFwebUTzL+P8lNG1smtsSOUICiE 5BAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=KYzgaSIoD3CUDpG7/nAndp/gB6PTBNti3DSpjbFfIOU=; b=RelX7zL9ikRSduX+0V2BhiwLOUqcaO7JLAj7nPRf+e28pth7QUVX7FAICgr9X6Ojff SzSXWHaZ4Xg5/En5DLder1RpW36aVJPgBo1XmF3fDBMGtkMzNmmSvGbRAqpLIHuzD7Mk g5tIpDm2LeZAow8IFQ/akIGuLqZzmecYiuOki5FlFZQcoWP+KQPPRo0VdeDR302msqKD 9PyTVfMe6IWFv0cNg523ZToI7qOnJ0zlg7fVnBX+6Y3Hi3YpNSqkVgQkYsqx2DVj3DkC eyy4ulYiNQIq4JBRM18HPTb5DQJCpWfuytFHmFcjSlfqCmB7c/8CmbQ7QiV2Vhq2taKa 5Adw== X-Gm-Message-State: AOAM533N8gtDqk7XaWkBmmbDTq9vVwplDoZRx80oDD7QbgP7yicycela 9cCwssXtpAevjdfjTmdTC5NhpA== X-Google-Smtp-Source: ABdhPJyEqY8FQ26jVkLFocORkLVHSUfWLKV9UPaQ5ffDHO7SCxdBz1sCz7U/0j6Hxd8w4u2rKpUK7A== X-Received: by 2002:a05:6512:3c9a:b0:448:5ba2:3184 with SMTP id h26-20020a0565123c9a00b004485ba23184mr9645900lfv.219.1647130111018; Sat, 12 Mar 2022 16:08:31 -0800 (PST) Received: from eriador.lumag.spb.ru (pppoe.178-66-158-48.dynamic.avangarddsl.ru. [178.66.158.48]) by smtp.gmail.com with ESMTPSA id e7-20020a05651c038700b00247dbb3e476sm2776017ljp.40.2022.03.12.16.08.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 12 Mar 2022 16:08:30 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Stephen Boyd , Michael Turquette , Taniya Das , Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Bjorn Helgaas Cc: Prasad Malisetty , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, linux-pci@vger.kernel.org Subject: [RFC PATCH 0/5] PCI: qcom: rework pipe_clk/pipe_clk_src handling Date: Sun, 13 Mar 2022 03:08:19 +0300 Message-Id: <20220313000824.229405-1-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org PCIe pipe clk (and some other clocks) must be parked to the "safe" source (bi_tcxo) when corresponding GDSC is turned off and on again. Currently this is handcoded in the PCIe driver by reparenting the gcc_pipe_N_clk_src clock. Instead of doing it manually, follow the approach used by clk_rcg2_shared_ops and implement this parking in the enable() and disable() clock operations for respective pipe clocks. Dmitry Baryshkov (5): clk: qcom: regmap-mux: add pipe clk implementation clk: qcom: gcc-sm8450: use new clk_regmap_mux_safe_ops for PCIe pipe clocks clk: qcom: gcc-sc7280: use new clk_regmap_mux_safe_ops for PCIe pipe clocks PCI: qcom: Remove unnecessary pipe_clk handling PCI: qcom: Drop manual pipe_clk_src handling drivers/clk/qcom/clk-regmap-mux.c | 70 +++++++++++++++++++++ drivers/clk/qcom/clk-regmap-mux.h | 3 + drivers/clk/qcom/gcc-sc7280.c | 6 +- drivers/clk/qcom/gcc-sm8450.c | 6 +- drivers/pci/controller/dwc/pcie-qcom.c | 87 +------------------------- 5 files changed, 84 insertions(+), 88 deletions(-) -- 2.34.1