From mboxrd@z Thu Jan 1 00:00:00 1970 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D389BCD5BAB for ; Tue, 19 May 2026 16:08:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C2A9D10EDBC; Tue, 19 May 2026 16:08:49 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="LVXuw4+R"; dkim-atps=neutral Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) by gabe.freedesktop.org (Postfix) with ESMTPS id C85D210EDBC for ; Tue, 19 May 2026 16:08:47 +0000 (UTC) Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-48d146705b4so41339645e9.3 for ; Tue, 19 May 2026 09:08:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779206926; x=1779811726; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hMZ95nXwBRqiNSLY0nFJjbkMYuK5JBNAh4WxIUQ9mYo=; b=LVXuw4+R4FTUqMIjq/PPlvZ8Zp24rF47CCjd2AdMlBc2rs/1VIaPB2YiP4g2vuCl2N cPEiOhu0qwj9ken9KR41CM2L6IgSjook+vcUZ60lXwRwoncJInczdwKCJtggmIpZ3QBL bxG5J07kyvjktxtAhN6YKLVIehH2SDzQLWhTAS5PbAzytHaN6JH8UKqovM1eVsz6fpZO uSYokh7IA055i4jak9jc0mnhbERbD/2Fl+MZp9foUUHwG8/9eY6MIZ+XB+LUhRkDDoFX gM8QwOHQE8tl+ifaaGEjwADuji1g5f5vvNT71BxyRZK+hZZRwUZew63rP6iDs3mQmzzz Ue6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779206926; x=1779811726; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=hMZ95nXwBRqiNSLY0nFJjbkMYuK5JBNAh4WxIUQ9mYo=; b=Lq0CY456OfhUmDnq1EOm/aV42eb3t7LvHV8jC6COGAhSyqg4I0vDCFooCLzGYSTMFp BOPnHOCoT5dmIG2QyUl9RkAzzBan7SdiRASE07nzEhEHVV/BCwIJjuvRKPndeGsDKwCd uX0yhvZYA0rCFtxVg5Pg1CjFM0t13xQK9AQPRM7iMGWzDGizz8PyT/KixCP9h/gApo81 BSlVlpUe5ecejCS4oHlEwYnLoYbWgsDYlfbpPRlLETgdB2nGZ7mEM+iBiCImzeyj4XaM lWogzwbA0xfN4ESHmylsDHoXSrQJimWq7e0M9tB/FGQrabRa3Yh0VVFJb9robPSSubvy zchQ== X-Gm-Message-State: AOJu0YzEspuzAjA77D+lGQhiXNFacUAyiOVd0ms44ENSfQT5QgzQgjao tBIABsZZ28lBDxhtQjV4L/RvMQciy9hfl5Y35eVkJGSLQGCORhMa5CUL X-Gm-Gg: Acq92OHsNRF2agx64MHRP6Qbp1ok/L7jm71YK9ZhIxEdRFXJni4Dhu2fd7CXcJ2ec7y QKRv+ESMVSaq/g+wZ0wXElFv5UqDRjikUS3glk23Z5xn/hvmBK1x05WsHl2Jcb3tD1eQJOTb5h3 ekIIL+B0AdTiEz0ZaIWdX9rNBQ5/wpZLq9QdW3jVkN2G9BuN7ahm0uMtXyejVGij1fmnaUcF8si +x95Yj6WUo4j8oxkVKA6NvDu8cr3Rm8XYQMTPnAYW9zyXWcWhSV4mbH9BOOVYs+8kyntNsQlRXN 7RPEDBleeuWucI8LGLa1B5BUlrSSxBYjkIjG/LF7za80f4fTVqMe8KiC6piG0RXfdOwBdH8gYrX 1annA4PiT6atF6MvBwuW+Q3ot5xLQ3+KpYRUw4mM1Hk9ivZYfOkAZk1fy244RMghSMi7qnlK7Ht NNVWmun7IRninrtkT7bq9KVlv1NPuOHYx82Bnpi5Er/KX4m8R8Nwvpxi7OJPSSzgL0gGiMAvzNh qIWdZ+GaQ2Oaacq20H+zae1MP9FeOp6EsP67Q== X-Received: by 2002:a05:600c:848c:b0:488:9ed3:1492 with SMTP id 5b1f17b1804b1-48fe60ecc19mr314605635e9.10.1779206926241; Tue, 19 May 2026 09:08:46 -0700 (PDT) Received: from iku.Home ([2a06:5906:61b:2d00:3f5e:825d:a98f:fd29]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48fe5ab527asm372645305e9.11.2026.05.19.09.08.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 May 2026 09:08:45 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Biju Das , Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , Geert Uytterhoeven , Magnus Damm Cc: dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Fabrizio Castro , Lad Prabhakar Subject: [PATCH v4 3/5] drm: renesas: rz-du: Make DU reset control optional for RZ/T2H support Date: Tue, 19 May 2026 17:08:23 +0100 Message-ID: <20260519160825.4082566-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260519160825.4082566-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20260519160825.4082566-1-prabhakar.mahadev-lad.rj@bp.renesas.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Lad Prabhakar Update the DU CRTC initialisation to request the reset control using devm_reset_control_get_optional_shared(). On RZ/T2H SoCs the DU block does not expose a reset line, and treating the reset as mandatory prevents the driver from probing on those platforms. Signed-off-by: Lad Prabhakar Reviewed-by: Laurent Pinchart --- v2->v4: - No change v1->v2: - Added Reviewed-by tag from Laurent Pinchart. --- drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c index 26b95153ce88..48065f4952a3 100644 --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_crtc.c @@ -380,7 +380,7 @@ int rzg2l_du_crtc_create(struct rzg2l_du_device *rcdu) struct drm_plane *primary; int ret; - rcrtc->rstc = devm_reset_control_get_shared(rcdu->dev, NULL); + rcrtc->rstc = devm_reset_control_get_optional_shared(rcdu->dev, NULL); if (IS_ERR(rcrtc->rstc)) { dev_err(rcdu->dev, "can't get cpg reset\n"); return PTR_ERR(rcrtc->rstc); -- 2.54.0