From patchwork Mon Jan 21 11:21:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alok Chauhan X-Patchwork-Id: 10773669 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 80FB7746 for ; Mon, 21 Jan 2019 11:22:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7084429C98 for ; Mon, 21 Jan 2019 11:22:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 64D7F29CA3; Mon, 21 Jan 2019 11:22:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0AD0129C98 for ; Mon, 21 Jan 2019 11:22:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728358AbfAULWT (ORCPT ); Mon, 21 Jan 2019 06:22:19 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:33190 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728345AbfAULWS (ORCPT ); Mon, 21 Jan 2019 06:22:18 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 2072B608CD; Mon, 21 Jan 2019 11:22:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1548069737; bh=vD5MTXyLS/qkTnSNYHFn5UkX/UYasOxBeZwiEyrO4hM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=i1C9FTzE3IWmWs1kivPPDE3tcdNuMhj+iR5wAh82umzdKLOMYAvOLpfd5Db6mCDT6 HMTmk5tyvjnCmRZwFmxlqrOlRH3o5BAtKjtWCPX1mbtR+RNv+GiDqoqMOaH4csMUf4 y4Ovwg0oJKrFfzdNvqVxMcQmJMKoIU3815IK9Fys= Received: from alokc-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: alokc@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 2F44A608CB; Mon, 21 Jan 2019 11:22:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1548069734; bh=vD5MTXyLS/qkTnSNYHFn5UkX/UYasOxBeZwiEyrO4hM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YUjJIC90BwZzYqFJzmuwiRHdv1Bt7bBDHqlWqSU0ZAU+7ebQpQwsg9u0oaiL7mSEU jd2KfQnsyiCNYllABmTOxyEUKlbIcDAgvRVLZmHIFXMQQp2OuLQYLlaJWIdJDcnSUA 6W9IXJCOPcSpZHcQjgDgNSbIIyA98fR8GH9+2qWM= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2F44A608CB Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=alokc@codeaurora.org From: Alok Chauhan To: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Mark Brown , linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: andy.gross@linaro.org, david.brown@linaro.org, georgi.djakov@linaro.org, dianders@chromium.org, swboyd@chromium.org, bjorn.andersson@linaro.org, Alok Chauhan Subject: [PATCH 4/6] spi: spi-geni-qcom: Add interconnect support Date: Mon, 21 Jan 2019 16:51:41 +0530 Message-Id: <1548069703-26595-5-git-send-email-alokc@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1548069703-26595-1-git-send-email-alokc@codeaurora.org> References: <1548069703-26595-1-git-send-email-alokc@codeaurora.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Get the interconnect paths for SPI based Serial Engine device and vote accordingly based on maximum supported SPI frequency. Signed-off-by: Alok Chauhan --- drivers/spi/spi-geni-qcom.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index fdb7cb88..7bbbe9d 100644 --- a/drivers/spi/spi-geni-qcom.c +++ b/drivers/spi/spi-geni-qcom.c @@ -12,6 +12,7 @@ #include #include #include +#include /* SPI SE specific registers and respective register fields */ #define SE_SPI_CPHA 0x224 @@ -589,6 +590,15 @@ static int spi_geni_probe(struct platform_device *pdev) spin_lock_init(&mas->lock); pm_runtime_enable(&pdev->dev); + /* Set the bus quota to a reasonable value */ + mas->se.avg_bw = Bps_to_icc(2500); + mas->se.peak_bw = Bps_to_icc(200000000); + ret = geni_interconnect_init(&mas->se); + if (ret) { + dev_err(&pdev->dev, "interconnect_init failed %d\n", ret); + return ret; + } + ret = spi_geni_init(mas); if (ret) goto spi_geni_probe_runtime_disable; @@ -628,8 +638,15 @@ static int __maybe_unused spi_geni_runtime_suspend(struct device *dev) { struct spi_master *spi = dev_get_drvdata(dev); struct spi_geni_master *mas = spi_master_get_devdata(spi); + int ret; - return geni_se_resources_off(&mas->se); + ret = geni_se_resources_off(&mas->se); + if (ret) + return ret; + + geni_icc_update_bw(&mas->se, false); + + return 0; } static int __maybe_unused spi_geni_runtime_resume(struct device *dev) @@ -637,6 +654,7 @@ static int __maybe_unused spi_geni_runtime_resume(struct device *dev) struct spi_master *spi = dev_get_drvdata(dev); struct spi_geni_master *mas = spi_master_get_devdata(spi); + geni_icc_update_bw(&mas->se, true); return geni_se_resources_on(&mas->se); }