From patchwork Tue Sep 13 13:14:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mikko Perttunen X-Patchwork-Id: 605463 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 45624C6FA89 for ; Tue, 13 Sep 2022 13:15:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232093AbiIMNPV (ORCPT ); Tue, 13 Sep 2022 09:15:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42458 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231528AbiIMNPP (ORCPT ); Tue, 13 Sep 2022 09:15:15 -0400 Received: from mail.kapsi.fi (mail.kapsi.fi [IPv6:2001:67c:1be8::25]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 37E4411825; Tue, 13 Sep 2022 06:15:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kapsi.fi; s=20161220; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=cC12j9P8ru5KBXVnbrH+bmEMVgxfMYkSNhABeawipyA=; b=oFpiDA7J/BkgsLGxlluEHHWg1t l2kISF6/T73kWZtg0WrA/KSmXiHniH9eicbRW7VUvJ3UUJnJHAKR8bSL1dcamxb8QkEZhYWVq4Cyu DUl4qjUiMl47Ngb2Jj9qZTxVpx34jf6ZJC6RrKcETUWw6Xcn9BZAhwdXVpJt1hewyx2ED0IXTrKWw g50ksP730JIaTn2eeyCTXaEwlwOkVnZ3Q+JDhgi7J+gY+JIc0eDua5xuVEDxrD/XMsF2jOjxSJqM1 ZkEocClm57Ep723zz2LVBV38xElNsHmn+AFSkY4u8snbri3otFNSLwc+Bx4D3POP6YVDjBzUBXMjx gpAb8ltA==; Received: from 91-158-25-70.elisa-laajakaista.fi ([91.158.25.70] helo=toshino.localdomain) by mail.kapsi.fi with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oY5ki-00EVnM-4x; Tue, 13 Sep 2022 16:15:00 +0300 From: Mikko Perttunen To: Thierry Reding , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Jonathan Hunter Cc: Mikko Perttunen , Ashish Mhetre , Sameer Pujar , dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 6/8] drm/tegra: nvdec: Support multiple clocks Date: Tue, 13 Sep 2022 16:14:44 +0300 Message-Id: <20220913131447.2877280-7-cyndis@kapsi.fi> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220913131447.2877280-1-cyndis@kapsi.fi> References: <20220913131447.2877280-1-cyndis@kapsi.fi> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 91.158.25.70 X-SA-Exim-Mail-From: cyndis@kapsi.fi X-SA-Exim-Scanned: No (on mail.kapsi.fi); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Mikko Perttunen NVDEC on Tegra234 requires multiple clocks. Add support for that. Signed-off-by: Mikko Perttunen --- drivers/gpu/drm/tegra/nvdec.c | 31 +++++++++++++++++++++---------- 1 file changed, 21 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/tegra/nvdec.c b/drivers/gpu/drm/tegra/nvdec.c index 276fe0472730..05af4d107421 100644 --- a/drivers/gpu/drm/tegra/nvdec.c +++ b/drivers/gpu/drm/tegra/nvdec.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Copyright (c) 2015-2021, NVIDIA Corporation. + * Copyright (c) 2015-2022, NVIDIA Corporation. */ #include @@ -28,6 +28,7 @@ struct nvdec_config { const char *firmware; unsigned int version; bool supports_sid; + bool has_extra_clocks; }; struct nvdec { @@ -37,7 +38,8 @@ struct nvdec { struct tegra_drm_client client; struct host1x_channel *channel; struct device *dev; - struct clk *clk; + struct clk_bulk_data clks[3]; + unsigned int num_clks; /* Platform configuration */ const struct nvdec_config *config; @@ -258,7 +260,7 @@ static __maybe_unused int nvdec_runtime_resume(struct device *dev) struct nvdec *nvdec = dev_get_drvdata(dev); int err; - err = clk_prepare_enable(nvdec->clk); + err = clk_bulk_prepare_enable(nvdec->num_clks, nvdec->clks); if (err < 0) return err; @@ -275,7 +277,7 @@ static __maybe_unused int nvdec_runtime_resume(struct device *dev) return 0; disable: - clk_disable_unprepare(nvdec->clk); + clk_bulk_disable_unprepare(nvdec->num_clks, nvdec->clks); return err; } @@ -285,7 +287,7 @@ static __maybe_unused int nvdec_runtime_suspend(struct device *dev) host1x_channel_stop(nvdec->channel); - clk_disable_unprepare(nvdec->clk); + clk_bulk_disable_unprepare(nvdec->num_clks, nvdec->clks); return 0; } @@ -383,13 +385,22 @@ static int nvdec_probe(struct platform_device *pdev) if (IS_ERR(nvdec->regs)) return PTR_ERR(nvdec->regs); - nvdec->clk = devm_clk_get(dev, NULL); - if (IS_ERR(nvdec->clk)) { - dev_err(&pdev->dev, "failed to get clock\n"); - return PTR_ERR(nvdec->clk); + nvdec->clks[0].id = "nvdec"; + nvdec->num_clks = 1; + + if (nvdec->config->has_extra_clocks) { + nvdec->num_clks = 3; + nvdec->clks[1].id = "fuse"; + nvdec->clks[2].id = "tsec_pka"; + } + + err = devm_clk_bulk_get(dev, nvdec->num_clks, nvdec->clks); + if (err) { + dev_err(&pdev->dev, "failed to get clock(s)\n"); + return err; } - err = clk_set_rate(nvdec->clk, ULONG_MAX); + err = clk_set_rate(nvdec->clks[0].clk, ULONG_MAX); if (err < 0) { dev_err(&pdev->dev, "failed to set clock rate\n"); return err;