From patchwork Mon Oct 16 10:40:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?U2hhd24gU3VuZyAo5a6L5a2d6KyZKQ==?= X-Patchwork-Id: 153320 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:2908:b0:403:3b70:6f57 with SMTP id ib8csp3367536vqb; Mon, 16 Oct 2023 03:42:34 -0700 (PDT) X-Google-Smtp-Source: AGHT+IG58KHAPRtzbPrzwP/Sz0h9aML48DL7X8h0WJZjICUpUcoHnaeIwvsP/0Z3+hCxhRNSUPQV X-Received: by 2002:a05:6a00:39a8:b0:692:ad93:e852 with SMTP id fi40-20020a056a0039a800b00692ad93e852mr36895625pfb.2.1697452954213; Mon, 16 Oct 2023 03:42:34 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1697452954; cv=none; d=google.com; s=arc-20160816; b=bkpldTS7ThS6BqfGVuETMy9AocujMBXgAQW8amhSqd3CjIOVvtg+UZzWow+J91V/xu V8HvhQezH8pLAUF1GpLBY/emJt7myXQgDiZbm/FZCcVtS6lbF2IsQbzmai8C9EkQhUYo KyLTMKa7Zvp6paQUUBFlyS7vgRKE/8Gm0Xa2aOy5tnLoGBRxqpmMlXklpjiEZ7nd2uiH hfj9mR20++BbphYqypw0eti47l8MR5QGhzIVz+/WJlu0Iee4BY6mjbk9ncYNxlvcRSa1 ghGyzBN4H3otlEInqlfAbI32KDEPwru115azw40PzksiiJNygSHFLoJ78kgLrj1NUIT+ 4gUw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=JkXNlE3N5eqQlG85VGDhkLpcb25mPEmp8jKwNA5oiGs=; fh=73Phm+PvMjlnW3qFw9TmTi5k31/kOAM4jmvPkuXQFpg=; b=R18NAax9HrCOf0BGq1779MyJfQNHrGMJtoAh3wn6a2KG305aGlrqI9xeJmPfnTqHkn 8oPivd8txGnJlm+ZE4k/w7YGbLZuFKUv12vd2AZ/FjQn5/IHvFYpE38Om86ytAv76u5m 1j2A8TneXOd8n2pOVIVOIuJi+/ZvbwxmuVXIlSXKAf+0moBOSp/O42oDrP8Bd+rFKlrn l99IHZ7PsSsG6BDpFzqvyS90dHdVTAplk/Y/7KGztXDuFiL05kr1lPwJFZSD8TOO6cS/ HcAmTqt5wBUnHXxMi2H3kRfG6jOnN43buZI5yYYzLAZ5dr+Q0EvmDyhub0JVJ34YbU+v 5z8Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=lX3ZVykn; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=mediatek.com Received: from lipwig.vger.email (lipwig.vger.email. [2620:137:e000::3:3]) by mx.google.com with ESMTPS id i70-20020a638749000000b00588fa0def2bsi8012602pge.768.2023.10.16.03.42.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Oct 2023 03:42:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) client-ip=2620:137:e000::3:3; Authentication-Results: mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=lX3ZVykn; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=mediatek.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by lipwig.vger.email (Postfix) with ESMTP id 98AA080AE808; Mon, 16 Oct 2023 03:42:30 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at lipwig.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233412AbjJPKmQ (ORCPT + 18 others); Mon, 16 Oct 2023 06:42:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232911AbjJPKkc (ORCPT ); Mon, 16 Oct 2023 06:40:32 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E98E2C5; Mon, 16 Oct 2023 03:40:29 -0700 (PDT) X-UUID: 65d3627a6c1011ee8051498923ad61e6-20231016 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=JkXNlE3N5eqQlG85VGDhkLpcb25mPEmp8jKwNA5oiGs=; b=lX3ZVyknBIKYtV/nsWFudpcs1IW0LBcMJwyJKz+S5pP/aPUwBwP74uq6kkZ8tTzznSZNAbqqBpiF5JFgUULa3a/aYdIMsTufKtSaXaMqU1Q934xXy82BKPx2auRyWvnFGgKxi1rsyBQawJZ+Ay5/Fb4hojF+fbXpgSrgAuzN3uw=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.32,REQID:7c5ded61-f257-4a90-8af3-9165131426ce,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:5f78ec9,CLOUDID:cdfad8f0-9a6e-4c39-b73e-f2bc08ca3dc5,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:11|1,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR: NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR,TF_CID_SPAM_ULN X-UUID: 65d3627a6c1011ee8051498923ad61e6-20231016 Received: from mtkmbs13n2.mediatek.inc [(172.21.101.108)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 2099796250; Mon, 16 Oct 2023 18:40:17 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 16 Oct 2023 18:40:16 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 16 Oct 2023 18:40:16 +0800 From: Hsiao Chien Sung To: AngeloGioacchino Del Regno , "CK Hu" , Krzysztof Kozlowski , Matthias Brugger , Rob Herring CC: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Fei Shao , Sean Paul , Johnson Wang , "Nancy . Lin" , Moudy Ho , "Jason-JH . Lin" , Nathan Lu , "Hsiao Chien Sung" , Yongqiang Niu , Hans Verkuil , Mauro Carvalho Chehab , , , , , Subject: [PATCH v8 22/23] drm/mediatek: Power on devices in OVL adaptor when atomic enable Date: Mon, 16 Oct 2023 18:40:09 +0800 Message-ID: <20231016104010.3270-23-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231016104010.3270-1-shawn.sung@mediatek.com> References: <20231016104010.3270-1-shawn.sung@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--11.636500-8.000000 X-TMASE-MatchedRID: Rxzc2NErS1DcOmQcPTi0T2095hplj6TXreJWlnSW7AxUvGw7a0fFC6iz 2yX3N56R8nkUz/YHQPwtHWp5Fn7onzzr4TJKjukKXP5rFAucBUHfOHKWwT12zNiCsYPC4Ul2Zvo +mFW19mBjVrjGHPfv8XbNwnFAA7lrrpRH5+x/2gOQOktEo73GFPQ7szeVKdNbf78OgRoeo3dAGS nh5QXxvkd/bWHoAHqSzy7SgyfekIrVmO/CL0mqHxes/RxhysDbecvjbu/xDjpGL0g1nVmkYUY/a uwRJnMLQrEyFEbk2iLh8mJP6muN81xxDx5qbkR9FEUknJ/kEl7dB/CxWTRRu25FeHtsUoHuwDkd v5aOz1ukyjeKj8P6YIgGnn0YKQW1AcyiKw9Pmn0fwV6sBPR0lg== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--11.636500-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 12C29CD90C4135F903E8380F61897F0CE2120953C03CA39AC8EC00AA06B7A1C72000:8 X-MTK: N X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Mon, 16 Oct 2023 03:42:30 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1779908428851932913 X-GMAIL-MSGID: 1779908428851932913 Different from OVL, OVL adaptor is a pseudo device so we didn't define it in the device tree, consequently, pm_runtime_resume_and_get() called by .atomic_enable() powers on no device in OVL adaptor and leads to power outage in the corresponding IOMMU. To resolve the issue, we implement a function to power on the RDMAs in OVL adaptor, and the system will make sure the IOMMU is powered on as well because of the device link (iommus) in the RDMA nodes in DTS. Fixes: 5db12f5d843b ("media: drm/mediatek: Add pm runtime support for ovl and rdma") Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_disp_drv.h | 4 ++ .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 62 +++++++++++++++++++ drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 28 +++------ drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 2 + drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 20 ++++++ drivers/gpu/drm/mediatek/mtk_mdp_rdma.c | 16 +++++ 6 files changed, 111 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h index e2b602037ac3..c44f5b31bab5 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h @@ -109,6 +109,8 @@ void mtk_ovl_adaptor_connect(struct device *dev, struct device *mmsys_dev, unsigned int next); void mtk_ovl_adaptor_disconnect(struct device *dev, struct device *mmsys_dev, unsigned int next); +int mtk_ovl_adaptor_power_on(struct device *dev); +void mtk_ovl_adaptor_power_off(struct device *dev); int mtk_ovl_adaptor_clk_enable(struct device *dev); void mtk_ovl_adaptor_clk_disable(struct device *dev); void mtk_ovl_adaptor_config(struct device *dev, unsigned int w, @@ -150,6 +152,8 @@ void mtk_rdma_disable_vblank(struct device *dev); const u32 *mtk_rdma_get_formats(struct device *dev); size_t mtk_rdma_get_num_formats(struct device *dev); +int mtk_mdp_rdma_power_on(struct device *dev); +void mtk_mdp_rdma_power_off(struct device *dev); int mtk_mdp_rdma_clk_enable(struct device *dev); void mtk_mdp_rdma_clk_disable(struct device *dev); void mtk_mdp_rdma_start(struct device *dev, struct cmdq_pkt *cmdq_pkt); diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c index b80425360e76..8de57a5f5518 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c @@ -98,6 +98,8 @@ static const struct mtk_ddp_comp_funcs _padding = { }; static const struct mtk_ddp_comp_funcs _rdma = { + .power_on = mtk_mdp_rdma_power_on, + .power_off = mtk_mdp_rdma_power_off, .clk_enable = mtk_mdp_rdma_clk_enable, .clk_disable = mtk_mdp_rdma_clk_disable, }; @@ -241,6 +243,66 @@ void mtk_ovl_adaptor_stop(struct device *dev) } } +/** + * mtk_ovl_adaptor_power_on - Power on devices in OVL adaptor + * @dev: device to be powered on + * + * Different from OVL, OVL adaptor is a pseudo device so + * we didn't define it in the device tree, pm_runtime_resume_and_get() + * called by .atomic_enable() power on no device in OVL adaptor, + * we have to implement a function to do the job instead. + * + * returns: + * zero on success, errno on failures. + */ +int mtk_ovl_adaptor_power_on(struct device *dev) +{ + int i, ret; + struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev); + + for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) { + if (!ovl_adaptor->ovl_adaptor_comp[i] || + !comp_matches[i].funcs->power_on) + continue; + + /* + * do not power on the devices that don't define + * .power_off() function + */ + if (!comp_matches[i].funcs->power_off) { + dev_warn(dev, ".power_off() is undefined\n"); + continue; + } + + ret = comp_matches[i].funcs->power_on(ovl_adaptor->ovl_adaptor_comp[i]); + if (ret < 0) { + mtk_ovl_adaptor_power_off(dev); + return ret; + } + } + return 0; +} + +/** + * mtk_ovl_adaptor_power_off - Power off devices in OVL adaptor + * @dev: device to be powered off + * + * call .power_off() function if defined + */ +void mtk_ovl_adaptor_power_off(struct device *dev) +{ + int i; + struct mtk_disp_ovl_adaptor *ovl_adaptor = dev_get_drvdata(dev); + + for (i = 0; i < OVL_ADAPTOR_ID_MAX; i++) { + if (!ovl_adaptor->ovl_adaptor_comp[i] || + !comp_matches[i].funcs->power_off) + continue; + + comp_matches[i].funcs->power_off(ovl_adaptor->ovl_adaptor_comp[i]); + } +} + int mtk_ovl_adaptor_clk_enable(struct device *dev) { int i; diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index a0b2ba3cbcdb..c7edd80be428 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include #include @@ -362,22 +361,16 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc, struct drm_atomic drm_connector_list_iter_end(&conn_iter); } - ret = pm_runtime_resume_and_get(crtc->dev->dev); - if (ret < 0) { - DRM_ERROR("Failed to enable power domain: %d\n", ret); - return ret; - } - ret = mtk_mutex_prepare(mtk_crtc->mutex); if (ret < 0) { DRM_ERROR("Failed to enable mutex clock: %d\n", ret); - goto err_pm_runtime_put; + goto error; } ret = mtk_crtc_ddp_clk_enable(mtk_crtc); if (ret < 0) { DRM_ERROR("Failed to enable component clocks: %d\n", ret); - goto err_mutex_unprepare; + goto error; } for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) { @@ -426,16 +419,13 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc, struct drm_atomic return 0; -err_mutex_unprepare: +error: mtk_mutex_unprepare(mtk_crtc->mutex); -err_pm_runtime_put: - pm_runtime_put(crtc->dev->dev); return ret; } static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc) { - struct drm_device *drm = mtk_crtc->base.dev; struct drm_crtc *crtc = &mtk_crtc->base; int i; @@ -465,8 +455,6 @@ static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc) mtk_crtc_ddp_clk_disable(mtk_crtc); mtk_mutex_unprepare(mtk_crtc->mutex); - pm_runtime_put(drm->dev); - if (crtc->state->event && !crtc->state->active) { spin_lock_irq(&crtc->dev->event_lock); drm_crtc_send_vblank_event(crtc, crtc->state->event); @@ -774,7 +762,7 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc, return; } - ret = pm_runtime_resume_and_get(comp->dev); + ret = mtk_ddp_comp_power_on(comp); if (ret < 0) { DRM_DEV_ERROR(comp->dev, "Failed to enable power domain: %d\n", ret); return; @@ -782,7 +770,7 @@ static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc, ret = mtk_crtc_ddp_hw_init(mtk_crtc, state); if (ret) { - pm_runtime_put(comp->dev); + mtk_ddp_comp_power_off(comp); return; } @@ -795,7 +783,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc, { struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc); struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0]; - int i, ret; + int i; DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id); if (!mtk_crtc->enabled) @@ -825,9 +813,7 @@ static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc, drm_crtc_vblank_off(crtc); mtk_crtc_ddp_hw_fini(mtk_crtc); - ret = pm_runtime_put(comp->dev); - if (ret < 0) - DRM_DEV_ERROR(comp->dev, "Failed to disable power domain: %d\n", ret); + mtk_ddp_comp_power_off(comp); mtk_crtc->enabled = false; } diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c index 10402e07a4a7..9940909c7435 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c @@ -396,6 +396,8 @@ static const struct mtk_ddp_comp_funcs ddp_ufoe = { }; static const struct mtk_ddp_comp_funcs ddp_ovl_adaptor = { + .power_on = mtk_ovl_adaptor_power_on, + .power_off = mtk_ovl_adaptor_power_off, .clk_enable = mtk_ovl_adaptor_clk_enable, .clk_disable = mtk_ovl_adaptor_clk_disable, .config = mtk_ovl_adaptor_config, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h index 1c1d670cfe41..2597dd7ac0d2 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h @@ -7,6 +7,7 @@ #define MTK_DRM_DDP_COMP_H #include +#include #include #include #include @@ -46,6 +47,8 @@ enum mtk_ddp_comp_type { struct mtk_ddp_comp; struct cmdq_pkt; struct mtk_ddp_comp_funcs { + int (*power_on)(struct device *dev); + void (*power_off)(struct device *dev); int (*clk_enable)(struct device *dev); void (*clk_disable)(struct device *dev); void (*config)(struct device *dev, unsigned int w, @@ -91,6 +94,23 @@ struct mtk_ddp_comp { int encoder_index; }; +static inline int mtk_ddp_comp_power_on(struct mtk_ddp_comp *comp) +{ + if (comp->funcs && comp->funcs->power_on) + return comp->funcs->power_on(comp->dev); + else + return pm_runtime_resume_and_get(comp->dev); + return 0; +} + +static inline void mtk_ddp_comp_power_off(struct mtk_ddp_comp *comp) +{ + if (comp->funcs && comp->funcs->power_off) + comp->funcs->power_off(comp->dev); + else + pm_runtime_put(comp->dev); +} + static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp) { if (comp->funcs && comp->funcs->clk_enable) diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c index cb36a961786f..8feeb6dce217 100644 --- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c +++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c @@ -243,6 +243,22 @@ size_t mtk_mdp_rdma_get_num_formats(struct device *dev) return ARRAY_SIZE(formats); } +int mtk_mdp_rdma_power_on(struct device *dev) +{ + int ret = pm_runtime_resume_and_get(dev); + + if (ret < 0) { + dev_err(dev, "Failed to power on: %d\n", ret); + return ret; + } + return 0; +} + +void mtk_mdp_rdma_power_off(struct device *dev) +{ + pm_runtime_put(dev); +} + int mtk_mdp_rdma_clk_enable(struct device *dev) { struct mtk_mdp_rdma *rdma = dev_get_drvdata(dev);