From patchwork Tue Sep 19 09:59:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 725788 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 5B2AECD54AC for ; Tue, 19 Sep 2023 10:00:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230348AbjISKAE (ORCPT ); Tue, 19 Sep 2023 06:00:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231724AbjISJ7w (ORCPT ); Tue, 19 Sep 2023 05:59:52 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D00E2123; Tue, 19 Sep 2023 02:59:46 -0700 (PDT) Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 95BC26607083; Tue, 19 Sep 2023 10:59:44 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1695117585; bh=ty1ncJ/gw8hrt51lR2U+TFArnXv5dU7HXDPnYcxw+dw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=StKEpJ45dfYg1hZOjzQqqJo3FpCWv8VqfgMPIQo7ZvtnXXpwzhwgrztPa4NeZ8T+y RVe0zeLcKynvJjpeOEr32ul/Abs0xJAhnwLplgr3pK6paFIQoHo+d8BRTxzH5eiIy/ uoj/dHKTDdFsNciQMeVwNuQWAMxOgCYsNlTmqctJA147Sljyda6bWa5UTZ2qvQSR5l xN1cY5vKssh0CdT8wNDCh2jHjufv/peXcgDi8gzlTvsOt9LjIR/nj2x/ayYlNXIS22 monR6h0q5f0N2s9ApuGN13f4S9sUCAfPMmpcq0VRzQKPJRa937S0tCb35egfWi9ScY VULyrDJyyqzNQ== From: AngeloGioacchino Del Regno To: mchehab@kernel.org Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, moudy.ho@mediatek.com, hverkuil-cisco@xs4all.nl, sakari.ailus@linux.intel.com, u.kleine-koenig@pengutronix.de, linqiheng@huawei.com, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, kernel@collabora.com, wenst@chromium.org Subject: [PATCH 2/2] media: platform: mtk-mdp3: Use devicetree phandle to retrieve SCP Date: Tue, 19 Sep 2023 11:59:38 +0200 Message-ID: <20230919095938.70679-3-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230919095938.70679-1-angelogioacchino.delregno@collabora.com> References: <20230919095938.70679-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Instead of walking the entire parent node for something that has the right compatible, use the scp_get() function provided by the MediaTek SCP remoteproc driver to retrieve a handle to mtk_scp through the devicetree "mediatek,scp" (phandle) property. In case of multi-core SCP, this also allows to select a specific core. Signed-off-by: AngeloGioacchino Del Regno --- .../media/platform/mediatek/mdp3/mtk-mdp3-core.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c index 8677e7fd5083..d93d3833633e 100644 --- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c +++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c @@ -254,13 +254,17 @@ static int mdp_probe(struct platform_device *pdev) goto err_destroy_job_wq; } - mm_pdev = __get_pdev_by_id(pdev, NULL, MDP_INFRA_SCP); - if (WARN_ON(!mm_pdev)) { - dev_err(&pdev->dev, "Could not get scp device\n"); - ret = -ENODEV; - goto err_destroy_clock_wq; + mdp->scp = scp_get(pdev); + if (!mdp->scp) { + mm_pdev = __get_pdev_by_id(pdev, NULL, MDP_INFRA_SCP); + if (WARN_ON(!mm_pdev)) { + dev_err(&pdev->dev, "Could not get scp device\n"); + ret = -ENODEV; + goto err_destroy_clock_wq; + } + mdp->scp = platform_get_drvdata(mm_pdev); } - mdp->scp = platform_get_drvdata(mm_pdev); + mdp->rproc_handle = scp_get_rproc(mdp->scp); dev_dbg(&pdev->dev, "MDP rproc_handle: %pK", mdp->rproc_handle);