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Thu, 19 Jun 2025 19:17:37 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.16.132]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id A25BB19560B2; Thu, 19 Jun 2025 19:17:26 +0000 (UTC) From: Anusha Srivatsa Date: Thu, 19 Jun 2025 14:15:53 -0500 Subject: [PATCH v2 01/16] drm/panel: get/put panel reference in drm_panel_add/remove() Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-b4-of_drm_find_panel_part1-v2-1-0df94aecc43d@redhat.com> References: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> In-Reply-To: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Tomi Valkeinen , Alain Volmat , Raphael Gallais-Pou , Stefan Agner , Alison Wang , Linus Walleij , Thierry Reding , Mikko Perttunen , Jonathan Hunter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Anusha Srivatsa , Luca Ceresoli X-Developer-Signature: v=1; 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Use get() and put() helpers to keep up with refcounting. Reviewed-by: Luca Ceresoli Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/drm_panel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index 805b4151ccefd8ec0107951162c3b71446102ffb..ced6b08923b2150ebda6e1d9001517103895def1 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -80,6 +80,7 @@ EXPORT_SYMBOL(drm_panel_init); */ void drm_panel_add(struct drm_panel *panel) { + drm_panel_get(panel); mutex_lock(&panel_lock); list_add_tail(&panel->list, &panel_list); mutex_unlock(&panel_lock); @@ -97,6 +98,7 @@ void drm_panel_remove(struct drm_panel *panel) mutex_lock(&panel_lock); list_del_init(&panel->list); mutex_unlock(&panel_lock); + drm_panel_put(panel); } EXPORT_SYMBOL(drm_panel_remove); From patchwork Thu Jun 19 19:15:55 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anusha Srivatsa X-Patchwork-Id: 898240 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 05D4B2063E7 for ; 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Thu, 19 Jun 2025 15:18:02 -0400 X-MC-Unique: -ujauuIfPGOIoVTMItiAUA-1 X-Mimecast-MFC-AGG-ID: -ujauuIfPGOIoVTMItiAUA_1750360678 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 8117C195608E; Thu, 19 Jun 2025 19:17:57 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.16.132]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id E157419560B2; Thu, 19 Jun 2025 19:17:47 +0000 (UTC) From: Anusha Srivatsa Date: Thu, 19 Jun 2025 14:15:55 -0500 Subject: [PATCH v2 03/16] drm/panel/samsung-dsicm: Keep up with refcounting Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-b4-of_drm_find_panel_part1-v2-3-0df94aecc43d@redhat.com> References: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> In-Reply-To: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Tomi Valkeinen , Alain Volmat , Raphael Gallais-Pou , Stefan Agner , Alison Wang , Linus Walleij , Thierry Reding , Mikko Perttunen , Jonathan Hunter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; 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The panel that of_drm_find_panel() returns is or the purpose of finding a out->bridge. After which it is no longer used. Drop the refcount accordingly. Signed-off-by: Anusha Srivatsa --- v2: Explain in commit message why the refcount is put in the attach function which is not usual. --- drivers/gpu/drm/bridge/samsung-dsim.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index 0014c497e3fe7d8349a119dbdda30d65d816cccf..3667855ff0d6d1b608c579573de657af7fd14388 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1748,6 +1748,7 @@ static int samsung_dsim_host_attach(struct mipi_dsi_host *host, dsi->out_bridge = ERR_PTR(-EINVAL); } + drm_panel_put(panel); of_node_put(remote); if (IS_ERR(dsi->out_bridge)) { From patchwork Thu Jun 19 19:15:57 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anusha Srivatsa X-Patchwork-Id: 898239 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 322B92063E7 for ; 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Thu, 19 Jun 2025 15:18:23 -0400 X-MC-Unique: nAKsXH1MOUuDhXf05kSPmw-1 X-Mimecast-MFC-AGG-ID: nAKsXH1MOUuDhXf05kSPmw_1750360698 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id EB97A19560B3; Thu, 19 Jun 2025 19:18:17 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.16.132]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 73D9D19560B3; Thu, 19 Jun 2025 19:18:08 +0000 (UTC) From: Anusha Srivatsa Date: Thu, 19 Jun 2025 14:15:57 -0500 Subject: [PATCH v2 05/16] drm/panel/exynos: Keep up with refcounting Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-b4-of_drm_find_panel_part1-v2-5-0df94aecc43d@redhat.com> References: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> In-Reply-To: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Tomi Valkeinen , Alain Volmat , Raphael Gallais-Pou , Stefan Agner , Alison Wang , Linus Walleij , Thierry Reding , Mikko Perttunen , Jonathan Hunter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; 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Signed-off-by: Anusha Srivatsa --- v2: move drm_panel_put() inside the if() --- drivers/gpu/drm/exynos/exynos_drm_dpi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c index 0dc36df6ada34cd0d4544f14e616fe3c52dafc73..3a258c4623b92a5a7c9aea3371d11a6c2df1cc8c 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c @@ -137,6 +137,7 @@ static void exynos_dpi_disable(struct drm_encoder *encoder) if (ctx->panel) { drm_panel_disable(ctx->panel); drm_panel_unprepare(ctx->panel); + drm_panel_put(ctx->panel); } } From patchwork Thu Jun 19 19:15:59 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anusha Srivatsa X-Patchwork-Id: 898238 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 604D024467D for ; 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Thu, 19 Jun 2025 15:18:42 -0400 X-MC-Unique: Ad2e_eS5OrOs14i45_1NqA-1 X-Mimecast-MFC-AGG-ID: Ad2e_eS5OrOs14i45_1NqA_1750360718 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 85DED1809C89; Thu, 19 Jun 2025 19:18:37 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.16.132]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id AEBE719560B2; Thu, 19 Jun 2025 19:18:28 +0000 (UTC) From: Anusha Srivatsa Date: Thu, 19 Jun 2025 14:15:59 -0500 Subject: [PATCH v2 07/16] drm/panel/rz-du: Keep up with refcounting Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-b4-of_drm_find_panel_part1-v2-7-0df94aecc43d@redhat.com> References: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> In-Reply-To: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Tomi Valkeinen , Alain Volmat , Raphael Gallais-Pou , Stefan Agner , Alison Wang , Linus Walleij , Thierry Reding , Mikko Perttunen , Jonathan Hunter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; 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Put the panel back accordingly. This patch added in v2. Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c index 5e6dd16705e60a196f607819336ed41135fdec44..112415f948d3e7f3685d629b29107a269865c9c2 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_encoder.c @@ -83,6 +83,7 @@ int rzg2l_du_encoder_init(struct rzg2l_du_device *rcdu, bridge = devm_drm_panel_bridge_add_typed(rcdu->dev, panel, DRM_MODE_CONNECTOR_DPI); + drm_panel_put(panel); if (IS_ERR(bridge)) return PTR_ERR(bridge); } else { From patchwork Thu Jun 19 19:16:01 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anusha Srivatsa X-Patchwork-Id: 898237 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 06E8C24501B for ; Thu, 19 Jun 2025 19:19:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750360746; cv=none; b=F52fP0e+g+J3izzWVVUrELCjIaHe1OwsETu09V5ddyfFNBPAAbiX4exWHG+VsMKql2odcXsj3l/kyl9BbCYRNncErwkDkjposCi/B7qfZunDP6OG7/mDaKPAoCJiaHrjfS5IWOVyyMCTcW0OokBNllPH7Uod6s2Pfol4RYORWxk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750360746; c=relaxed/simple; bh=QRJEE7qMiFs5kGf7cQ4VQ29VylwbR1QuEXQpr4H6ph4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=NzCUmZWW+z27gFKcvSyZRZ+RcaZiTIkcD9RVyxca5a+mj36qCDdWL/9adVeQAJmgd3Ul9YZQm13/+mvyuZhKoGKvd9e3+dPUaoQPpdXzedK8gwP7DvyFvUj7miMQR0jeghS6YKYd5zL5H3mC5louWo+M6n/KrSZFJirjDMgRydY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=OcdFRfk1; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="OcdFRfk1" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1750360744; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=7sFoguKbQ+ywoNOBanwhKx40TrbH0RfaNLTPZL/qqQI=; b=OcdFRfk1v7Rztubzl34hRs+L1VxnN2YcLEFeCyzJqgw4FRG2HycCV6Mr7r4mTbZ2S/s9NH oMMXWupndM+wFJHThl15T8e2uzgeho/3v/qEB7M3tDsAFIbqk0ky8LFaub0H9TyjEJxfDm WXYnJ2HIXLMJe/0vtDmCDLP8/QxCCNU= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-81-CdGqKCOAOZC6-edMBUC-cw-1; Thu, 19 Jun 2025 15:19:00 -0400 X-MC-Unique: CdGqKCOAOZC6-edMBUC-cw-1 X-Mimecast-MFC-AGG-ID: CdGqKCOAOZC6-edMBUC-cw_1750360736 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 478E21956089; Thu, 19 Jun 2025 19:18:56 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.16.132]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 637AE19560A3; Thu, 19 Jun 2025 19:18:47 +0000 (UTC) From: Anusha Srivatsa Date: Thu, 19 Jun 2025 14:16:01 -0500 Subject: [PATCH v2 09/16] drm/bridge/fsl-ldb: Keep up with refcounting. Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-b4-of_drm_find_panel_part1-v2-9-0df94aecc43d@redhat.com> References: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> In-Reply-To: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Tomi Valkeinen , Alain Volmat , Raphael Gallais-Pou , Stefan Agner , Alison Wang , Linus Walleij , Thierry Reding , Mikko Perttunen , Jonathan Hunter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; a=ed25519-sha256; t=1750360565; l=878; i=asrivats@redhat.com; s=20250122; h=from:subject:message-id; bh=QRJEE7qMiFs5kGf7cQ4VQ29VylwbR1QuEXQpr4H6ph4=; b=rf5TDHyC/mKX//6VO60XyDEb/LvxfTxI4tSGPNoe3kJnj7ukVEG1KCcjk1ZdJXU4ETlYnuI36 auqktcHeGylCbFo3ZWzVD37odWuiAhXYqypY5UUegR++n1R2ZmlFDTb X-Developer-Key: i=asrivats@redhat.com; a=ed25519; pk=brnIHkBsUZEhyW6Zyn0U92AeIZ1psws/q8VFbIkf1AU= X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 The panel returned by of_drm_find_panel() is for calling devm_drm_panel_bridge_add and not anywhere after that. Put the panel reference accordingly. Patch added in v2. Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/bridge/fsl-ldb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/bridge/fsl-ldb.c b/drivers/gpu/drm/bridge/fsl-ldb.c index 5c3cf37200bcee1db285c97e2b463c9355ee6acb..ef0bbc272c1dc3484d0f7955233f4e8c6590235f 100644 --- a/drivers/gpu/drm/bridge/fsl-ldb.c +++ b/drivers/gpu/drm/bridge/fsl-ldb.c @@ -341,6 +341,9 @@ static int fsl_ldb_probe(struct platform_device *pdev) return PTR_ERR(panel); fsl_ldb->panel_bridge = devm_drm_panel_bridge_add(dev, panel); + + drm_panel_put(panel); + if (IS_ERR(fsl_ldb->panel_bridge)) return PTR_ERR(fsl_ldb->panel_bridge); From patchwork Thu Jun 19 19:16:03 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anusha Srivatsa X-Patchwork-Id: 898236 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E4E0A246796 for ; 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Thu, 19 Jun 2025 15:19:20 -0400 X-MC-Unique: M_JtvyASMu-WKdAYu-ywLA-1 X-Mimecast-MFC-AGG-ID: M_JtvyASMu-WKdAYu-ywLA_1750360754 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id B94411809CAF; Thu, 19 Jun 2025 19:19:14 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.16.132]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id D741B19560A3; Thu, 19 Jun 2025 19:19:05 +0000 (UTC) From: Anusha Srivatsa Date: Thu, 19 Jun 2025 14:16:03 -0500 Subject: [PATCH v2 11/16] drm/panel/sti: Keep up with refcounting Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-b4-of_drm_find_panel_part1-v2-11-0df94aecc43d@redhat.com> References: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> In-Reply-To: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Tomi Valkeinen , Alain Volmat , Raphael Gallais-Pou , Stefan Agner , Alison Wang , Linus Walleij , Thierry Reding , Mikko Perttunen , Jonathan Hunter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; 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Patch added in v2. Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/sti/sti_dvo.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c index 7484d3c3f4ed5fac7eab408e30cbe2f6b87f27e5..11684279320a0e4b15fe761bdf6782cc24e8be96 100644 --- a/drivers/gpu/drm/sti/sti_dvo.c +++ b/drivers/gpu/drm/sti/sti_dvo.c @@ -225,6 +225,8 @@ static void sti_dvo_disable(struct drm_bridge *bridge) drm_panel_disable(dvo->panel); + drm_panel_put(dvo->panel); + /* Disable/unprepare dvo clock */ clk_disable_unprepare(dvo->clk_pix); clk_disable_unprepare(dvo->clk); From patchwork Thu Jun 19 19:16:05 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anusha Srivatsa X-Patchwork-Id: 898235 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 357F521FF5D for ; 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Thu, 19 Jun 2025 15:19:38 -0400 X-MC-Unique: gpVPmr5uOrSKoU-SldmlnA-1 X-Mimecast-MFC-AGG-ID: gpVPmr5uOrSKoU-SldmlnA_1750360774 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 366DE1800286; Thu, 19 Jun 2025 19:19:34 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.16.132]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 3668A19560A3; Thu, 19 Jun 2025 19:19:25 +0000 (UTC) From: Anusha Srivatsa Date: Thu, 19 Jun 2025 14:16:05 -0500 Subject: [PATCH v2 13/16] drm/fsl-dcu: Keep up with refcounting Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-b4-of_drm_find_panel_part1-v2-13-0df94aecc43d@redhat.com> References: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> In-Reply-To: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Tomi Valkeinen , Alain Volmat , Raphael Gallais-Pou , Stefan Agner , Alison Wang , Linus Walleij , Thierry Reding , Mikko Perttunen , Jonathan Hunter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; 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Patch added in v2 Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c index 84eff7519e322257ed7ee7dfdcb08db40a341d6e..db79b35384be9729db9abb96a8fea6bc3da9d7f3 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c @@ -100,6 +100,7 @@ static int fsl_dcu_attach_panel(struct fsl_dcu_drm_device *fsl_dev, if (ret < 0) goto err_sysfs; + drm_panel_put(panel); return 0; err_sysfs: From patchwork Thu Jun 19 19:16:07 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anusha Srivatsa X-Patchwork-Id: 898234 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5DE09246BD9 for ; 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Thu, 19 Jun 2025 15:19:57 -0400 X-MC-Unique: 4Fak0v4QO76UnbQSUGYWXw-1 X-Mimecast-MFC-AGG-ID: 4Fak0v4QO76UnbQSUGYWXw_1750360792 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 8B09319560B5; Thu, 19 Jun 2025 19:19:52 +0000 (UTC) Received: from asrivats-na.rmtustx.csb (unknown [10.2.16.132]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id AA44019560A3; Thu, 19 Jun 2025 19:19:43 +0000 (UTC) From: Anusha Srivatsa Date: Thu, 19 Jun 2025 14:16:07 -0500 Subject: [PATCH v2 15/16] drm/bridge/analogix: Keep up with refcounting Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-b4-of_drm_find_panel_part1-v2-15-0df94aecc43d@redhat.com> References: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> In-Reply-To: <20250619-b4-of_drm_find_panel_part1-v2-0-0df94aecc43d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar , Laurent Pinchart , Tomi Valkeinen , Kieran Bingham , Geert Uytterhoeven , Magnus Damm , Biju Das , Tomi Valkeinen , Alain Volmat , Raphael Gallais-Pou , Stefan Agner , Alison Wang , Linus Walleij , Thierry Reding , Mikko Perttunen , Jonathan Hunter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; a=ed25519-sha256; t=1750360565; l=1001; i=asrivats@redhat.com; s=20250122; h=from:subject:message-id; bh=ei71xVf2KxFKheQUD3Rv5JMFWYUVLIYvcB17YZdR71g=; b=x5KTNU62immLK/3d5Cjd14ZkRw2TEI6w258GU0vHV5JXNPdlTrcWV1UvtT8zitAB9n3hGRLOT zzLWHSNl3jXAwzsg1eHQtUHb+hwe1jUTvcKEHan6JdmemGVZj+Ardge X-Developer-Key: i=asrivats@redhat.com; a=ed25519; pk=brnIHkBsUZEhyW6Zyn0U92AeIZ1psws/q8VFbIkf1AU= X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 The panel is looked for in exynos_dp_probe() which calls analogix_dp_probe() after which the prepare(), enable(), disable() and unprepare() helpers are called. Put the reference after unprepare() Patch added in v2. Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 505eec6b819bb26c6984a0cda4013fa40e44b674..5fe7a846da410ee59d65b854a440a1b49c6f508f 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1230,6 +1230,7 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge) pm_runtime_put_sync(dp->dev); drm_panel_unprepare(dp->plat_data->panel); + drm_panel_put(dp->plat_data->panel); dp->fast_train_enable = false; dp->psr_supported = false;