From patchwork Thu Aug 20 06:04:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yongqiang Niu X-Patchwork-Id: 11725771 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 8AE3B14F6 for ; Thu, 20 Aug 2020 07:17:39 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6956E20786 for ; Thu, 20 Aug 2020 07:17:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="n16wVzQv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6956E20786 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 212336E910; Thu, 20 Aug 2020 07:16:07 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mailgw01.mediatek.com (unknown [210.61.82.183]) by gabe.freedesktop.org (Postfix) with ESMTP id AF9316E8A8 for ; Thu, 20 Aug 2020 06:05:42 +0000 (UTC) X-UUID: 538db9ae8369492ba90a149167f7d305-20200820 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=IcBVGjhMM93U59Zg6sn4+HR2/5ZarY0qGfZCNPtkXU4=; b=n16wVzQvIZ8xr/9/I/L1Of79g5XbgyiER0Ae05+2idOHX+Vq19z30JE3ObKC2J4dgZOk1qNsKqXnFqZcTOO+FQ/LPcp1LEGxfxFQfshX+ITyetXEpLQ9QVbwgShEZ6LTEO2fp5d5QUz3YuDVvGJEFtigYB6qCWXdMC8BwX/AUdw=; X-UUID: 538db9ae8369492ba90a149167f7d305-20200820 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1468991654; Thu, 20 Aug 2020 14:05:39 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs05n2.mediatek.inc (172.21.101.140) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 20 Aug 2020 14:05:37 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 20 Aug 2020 14:05:36 +0800 From: Yongqiang Niu To: CK Hu , Philipp Zabel , Rob Herring , Matthias Brugger Subject: [PATCH v1 06/21] drm/mediatek: add disp config and mm 26mhz clock into mutex device Date: Thu, 20 Aug 2020 14:04:03 +0800 Message-ID: <1597903458-8055-7-git-send-email-yongqiang.niu@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1597903458-8055-1-git-send-email-yongqiang.niu@mediatek.com> References: <1597903458-8055-1-git-send-email-yongqiang.niu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-Mailman-Approved-At: Thu, 20 Aug 2020 07:14:47 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Yongqiang Niu , David Airlie , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" there are 2 more clock need enable for display. parser these clock when mutex device probe, enable and disable when mutex on/off Signed-off-by: Yongqiang Niu --- drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 49 ++++++++++++++++++++++++++++------ 1 file changed, 41 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c index 60788c1..de618a1 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c @@ -118,7 +118,7 @@ struct mtk_ddp_data { struct mtk_ddp { struct device *dev; - struct clk *clk; + struct clk *clk[3]; void __iomem *regs; struct mtk_disp_mutex mutex[10]; const struct mtk_ddp_data *data; @@ -257,14 +257,39 @@ int mtk_disp_mutex_prepare(struct mtk_disp_mutex *mutex) { struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp, mutex[mutex->id]); - return clk_prepare_enable(ddp->clk); + int ret; + int i; + + for (i = 0; i < ARRAY_SIZE(ddp->clk); i++) { + if (IS_ERR(ddp->clk[i])) + continue; + ret = clk_prepare_enable(ddp->clk[i]); + if (ret) { + pr_err("failed to enable clock, err %d. i:%d\n", + ret, i); + goto err; + } + } + + return 0; + +err: + while (--i >= 0) + clk_disable_unprepare(ddp->clk[i]); + return ret; } void mtk_disp_mutex_unprepare(struct mtk_disp_mutex *mutex) { struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp, mutex[mutex->id]); - clk_disable_unprepare(ddp->clk); + int i; + + for (i = 0; i < ARRAY_SIZE(ddp->clk); i++) { + if (IS_ERR(ddp->clk[i])) + continue; + clk_disable_unprepare(ddp->clk[i]); + } } void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex, @@ -415,11 +440,19 @@ static int mtk_ddp_probe(struct platform_device *pdev) ddp->data = of_device_get_match_data(dev); if (!ddp->data->no_clk) { - ddp->clk = devm_clk_get(dev, NULL); - if (IS_ERR(ddp->clk)) { - if (PTR_ERR(ddp->clk) != -EPROBE_DEFER) - dev_err(dev, "Failed to get clock\n"); - return PTR_ERR(ddp->clk); + int ret; + + for (i = 0; i < ARRAY_SIZE(ddp->clk); i++) { + ddp->clk[i] = of_clk_get(dev->of_node, i); + + if (IS_ERR(ddp->clk[i])) { + ret = PTR_ERR(ddp->clk[i]); + if (ret != EPROBE_DEFER) + dev_err(dev, "Failed to get clock %d\n", + ret); + + return ret; + } } }