From patchwork Tue Aug 17 01:27:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12439817 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49D93C4338F for ; Tue, 17 Aug 2021 01:31:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D87C6023F for ; Tue, 17 Aug 2021 01:31:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237405AbhHQBbk (ORCPT ); Mon, 16 Aug 2021 21:31:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48072 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236958AbhHQBbF (ORCPT ); Mon, 16 Aug 2021 21:31:05 -0400 Received: from mail-lf1-x134.google.com (mail-lf1-x134.google.com [IPv6:2a00:1450:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE8FEC0613CF; Mon, 16 Aug 2021 18:30:32 -0700 (PDT) Received: by mail-lf1-x134.google.com with SMTP id t9so38200448lfc.6; Mon, 16 Aug 2021 18:30:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=zFAqaH94y5dODw6bxUJyzcf4ykAG32TzvIL6HQjvI4o=; b=TOSPckvcKxaz8x4YZmCZ0DSatUga5azJjxEAWG2dD391oqsaF+CbiZiVAkzwluviXN i74KxE0D6tlq7a0vVADBfmWiluCgjyDF3N9YlGeBDAbRQrV/51sL4V3dKMgYITDxPopl O1KTXO+fpQ7NQZgIgm3lz3ppA2MexSw7vxNbzRluXdC6hWniNB23aLETH8FZ03nf2pVp ijicJHlUcovAndBkG7Cp510kqyIeulwDX7Ng90xzDP22Ji/mR1pu3sSVo3MbrHlTh2Gp f3brQfprquAO+aixVhD065gj1DfukxgmNs8kHoK0SlXfurKhWyxIElPa+Z84dZkahUAA VcUQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=zFAqaH94y5dODw6bxUJyzcf4ykAG32TzvIL6HQjvI4o=; b=a/ncine40vuISrvsEQK8YMTYYjJ9WdwvLYWpuEWaezADSEwDg5SydrlrVRDlYkxTD8 4RcTCem1SbkCA+0Z/6foS2RR7VpCao714/DEZm+nVOdp4N9ts6f7suBMVbqsV2TANTwh p+koaM++vObfiKZoYsciYCz2grwR2jdmvAsH+xIGdu55tSurxJgRAqqeAsJhFE4WvbkW gxNXSa9m07ygxd02reu+Nb+Psr/nFewp+T33xrTZXR06Hoy7NSaLqfm7lwMVOm51T38L k/LtbXt9E6H+bkrM+Q257nmXrM2DEY0oK2UDuvQzg1pyyEddfMi0JPJh/EanVQ21obVP SoDA== X-Gm-Message-State: AOAM531t2siiXP5t/n3sMg1ITyxuD+P2pcIuOFh3Irh2BHj9wIPKWs7J 91ocb9fBMAEGD+leIFslBHA= X-Google-Smtp-Source: ABdhPJzDfhGZOTtGotoFXUcS8muVuZ5oQKe5OJmXVsMZ9TFuuD4YSntIkTKjSY9ZSxKC1uuHJPNZNg== X-Received: by 2002:a19:ac4c:: with SMTP id r12mr473734lfc.217.1629163831275; Mon, 16 Aug 2021 18:30:31 -0700 (PDT) Received: from localhost.localdomain (46-138-85-91.dynamic.spd-mgts.ru. [46.138.85.91]) by smtp.gmail.com with ESMTPSA id g30sm46607lfj.298.2021.08.16.18.30.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Aug 2021 18:30:31 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Ulf Hansson , Viresh Kumar , Stephen Boyd , Peter De Schrijver , Mikko Perttunen , Peter Chen , Mark Brown , Lee Jones , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Nishanth Menon , Vignesh Raghavendra , Richard Weinberger , Miquel Raynal , Lucas Stach , Stefan Agner , Adrian Hunter , Mauro Carvalho Chehab , Rob Herring , Michael Turquette Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-usb@vger.kernel.org, linux-staging@lists.linux.dev, linux-spi@vger.kernel.org, linux-pwm@vger.kernel.org, linux-mtd@lists.infradead.org, linux-mmc@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH v8 25/34] media: staging: tegra-vde: Support generic power domain and OPP Date: Tue, 17 Aug 2021 04:27:45 +0300 Message-Id: <20210817012754.8710-26-digetx@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817012754.8710-1-digetx@gmail.com> References: <20210817012754.8710-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Currently driver supports legacy power domain API, this patch adds generic power domain and OPP support. This allows us to utilize a modern GENPD API for newer device-trees and support DVFS of the video decoder hardware. Tested-by: Peter Geis # Ouya T30 Tested-by: Paul Fertser # PAZ00 T20 Tested-by: Nicolas Chauvet # PAZ00 T20 and TK1 T124 Tested-by: Matt Merhar # Ouya T30 Signed-off-by: Dmitry Osipenko --- drivers/staging/media/tegra-vde/vde.c | 65 ++++++++++++++++++++++----- 1 file changed, 54 insertions(+), 11 deletions(-) diff --git a/drivers/staging/media/tegra-vde/vde.c b/drivers/staging/media/tegra-vde/vde.c index ed4c1250b303..9a3eee8e71e2 100644 --- a/drivers/staging/media/tegra-vde/vde.c +++ b/drivers/staging/media/tegra-vde/vde.c @@ -15,11 +15,14 @@ #include #include #include +#include +#include #include #include #include #include +#include #include #include "uapi.h" @@ -920,13 +923,17 @@ static __maybe_unused int tegra_vde_runtime_suspend(struct device *dev) struct tegra_vde *vde = dev_get_drvdata(dev); int err; - err = tegra_powergate_power_off(TEGRA_POWERGATE_VDEC); - if (err) { - dev_err(dev, "Failed to power down HW: %d\n", err); - return err; + if (!dev->pm_domain) { + err = tegra_powergate_power_off(TEGRA_POWERGATE_VDEC); + if (err) { + dev_err(dev, "Failed to power down HW: %d\n", err); + return err; + } } clk_disable_unprepare(vde->clk); + reset_control_release(vde->rst); + reset_control_release(vde->rst_mc); return 0; } @@ -936,14 +943,47 @@ static __maybe_unused int tegra_vde_runtime_resume(struct device *dev) struct tegra_vde *vde = dev_get_drvdata(dev); int err; - err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_VDEC, - vde->clk, vde->rst); + err = reset_control_acquire(vde->rst_mc); + if (err) { + dev_err(dev, "Failed to acquire mc reset: %d\n", err); + return err; + } + + err = reset_control_acquire(vde->rst); + if (err) { + dev_err(dev, "Failed to acquire reset: %d\n", err); + goto release_mc_reset; + } + + if (!dev->pm_domain) { + err = tegra_powergate_sequence_power_up(TEGRA_POWERGATE_VDEC, + vde->clk, vde->rst); + if (err) { + dev_err(dev, "Failed to power up HW : %d\n", err); + goto release_reset; + } + } + + err = dev_pm_opp_sync(dev); if (err) { - dev_err(dev, "Failed to power up HW : %d\n", err); + dev_err(dev, "failed to sync OPP: %d\n", err); return err; } + err = clk_prepare_enable(vde->clk); + if (err) { + dev_err(dev, "Failed to enable clock: %d\n", err); + goto release_reset; + } + return 0; + +release_reset: + reset_control_release(vde->rst); +release_mc_reset: + reset_control_release(vde->rst_mc); + + return err; } static int tegra_vde_probe(struct platform_device *pdev) @@ -1001,14 +1041,14 @@ static int tegra_vde_probe(struct platform_device *pdev) return err; } - vde->rst = devm_reset_control_get(dev, NULL); + vde->rst = devm_reset_control_get_exclusive_released(dev, NULL); if (IS_ERR(vde->rst)) { err = PTR_ERR(vde->rst); dev_err(dev, "Could not get VDE reset %d\n", err); return err; } - vde->rst_mc = devm_reset_control_get_optional(dev, "mc"); + vde->rst_mc = devm_reset_control_get_optional_exclusive_released(dev, "mc"); if (IS_ERR(vde->rst_mc)) { err = PTR_ERR(vde->rst_mc); dev_err(dev, "Could not get MC reset %d\n", err); @@ -1026,6 +1066,10 @@ static int tegra_vde_probe(struct platform_device *pdev) return err; } + err = devm_tegra_core_dev_init_opp_table_simple(dev); + if (err) + return err; + vde->iram_pool = of_gen_pool_get(dev->of_node, "iram", 0); if (!vde->iram_pool) { dev_err(dev, "Could not get IRAM pool\n"); @@ -1133,8 +1177,7 @@ static void tegra_vde_shutdown(struct platform_device *pdev) * On some devices bootloader isn't ready to a power-gated VDE on * a warm-reboot, machine will hang in that case. */ - if (pm_runtime_status_suspended(&pdev->dev)) - tegra_vde_runtime_resume(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); } static __maybe_unused int tegra_vde_pm_suspend(struct device *dev)