From patchwork Thu Mar 12 06:01:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pradeep P V K X-Patchwork-Id: 11433257 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 81B4D92C for ; Thu, 12 Mar 2020 06:03:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5B6FE20650 for ; Thu, 12 Mar 2020 06:03:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387786AbgCLGDP (ORCPT ); Thu, 12 Mar 2020 02:03:15 -0400 Received: from alexa-out-blr-02.qualcomm.com ([103.229.18.198]:20487 "EHLO alexa-out-blr-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387767AbgCLGDP (ORCPT ); Thu, 12 Mar 2020 02:03:15 -0400 Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by alexa-out-blr-02.qualcomm.com with ESMTP/TLS/AES256-SHA; 12 Mar 2020 11:32:29 +0530 Received: from c-ppvk-linux.qualcomm.com ([10.206.24.34]) by ironmsg02-blr.qualcomm.com with ESMTP; 12 Mar 2020 11:31:58 +0530 Received: by c-ppvk-linux.qualcomm.com (Postfix, from userid 2304101) id 258634D31; Thu, 12 Mar 2020 11:31:57 +0530 (IST) From: Pradeep P V K To: bjorn.andersson@linaro.org, adrian.hunter@intel.com, robh+dt@kernel.org, ulf.hansson@linaro.org, asutoshd@codeaurora.org, stummala@codeaurora.org, sayalil@codeaurora.org, rampraka@codeaurora.org, vbadigan@codeaurora.org, sboyd@kernel.org, georgi.djakov@linaro.org, mka@chromium.org Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, agross@kernel.org, linux-mmc-owner@vger.kernel.org, Pradeep P V K Subject: [RFC v5 0/2] Add SDHC interconnect bandwidth scaling Date: Thu, 12 Mar 2020 11:31:49 +0530 Message-Id: <1583992911-12001-1-git-send-email-ppvk@codeaurora.org> X-Mailer: git-send-email 1.9.1 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add interconnect bandwidths for SDHC driver using OPP framework that is required by SDHC driver based on the clock frequency and bus width of the card. Otherwise, the system clocks may run at minimum clock speed and thus affecting the performance. This change is based on [RFC] mmc: host: sdhci-msm: Use the interconnect API (https://lkml.org/lkml/2018/10/11/499) and [PATCH v6] Introduce Bandwidth OPPs for interconnects (https://lkml.org/lkml/2019/12/6/740) Pradeep P V K (2): mmc: sdhci-msm: Add interconnect bus bandwidth scaling support dt-bindings: mmc: sdhci-msm: Add interconnect BW scaling strings .../devicetree/bindings/mmc/sdhci-msm.txt | 18 ++ drivers/mmc/host/sdhci-msm.c | 231 ++++++++++++++++++++- 2 files changed, 245 insertions(+), 4 deletions(-)