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 B0F60CD4F25 for ; Tue, 12 May 2026 14:41:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E70BE10EAE1; Tue, 12 May 2026 14:41:43 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="dAD8buZE"; dkim-atps=neutral Received: from mail-wr1-f53.google.com (mail-wr1-f53.google.com [209.85.221.53]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2547610EAD5 for ; Tue, 12 May 2026 14:41:43 +0000 (UTC) Received: by mail-wr1-f53.google.com with SMTP id ffacd0b85a97d-44a044cb827so4420334f8f.0 for ; Tue, 12 May 2026 07:41:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778596902; x=1779201702; 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=K0HvXZD2JH3Hm4dxIzGecREAhsQ21ewQFNBJt/muUZQ=; b=dAD8buZEiqGAJaX//00anMWU6bp08pBTJUMi/LSBMfWi0M5JQArsxW9+95bWpTLU5i /+qP3mkgVfwP/V0O7U9t2HqjXME2w8dc0OwxToESCuTDt7Pzzckmlyu36kOVXN1DSzdo F/P78dVK3Vw2K81CRcuDxpO9EA1Fy9u7XmFFptu4AxdZUZ6s3Cdlo4fsKp7SySP1EYbB ZnS462XEDXPHct8OTOoo9iBs+XC+ZzRWCOCwq88l3GxyKsmpXFPjTdeuelM3Lqo7tcDf FgHwqNsXltV6yuJRWeLfKMprdt6ZCfUgR6OHVy75jlaVHX17hbMQ+Eie7geqEJE/cy/p dDvg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778596902; x=1779201702; 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=K0HvXZD2JH3Hm4dxIzGecREAhsQ21ewQFNBJt/muUZQ=; b=onCUyfyfrxL7XkrPVrjYh3yZk4fulZUHViOAeD/TGjn1r7Krh5S6pxcS3+QFetBtJn ahs5vbOjq7/sDmv5EOJXko+RbPOGfc6xiEgYXxjjjvE+F0awtiWHZ/NvQXvHPWTGCplz o6SfuuBkSlHSMk9/fL8SuHTDx2ncIKn5dI6jPUBfYR37NXfeKliK9vLuNYy1arJBcH46 JOhKjNgVfwjMaX01lZaiu3tEz0MZq352QQ3gMXKOkK7DAqGXx/F26eTB6flevU3uR3CR Gxy634YN7xM/+Qnfp7EMOce1YzdIKHKGCuidY9CFmrcGxCEUOmYCS2YXMDolCgiNvUy6 Q3FQ== X-Gm-Message-State: AOJu0YwMhIPuLG9WhDhJ3d7Sns9FCVAyPyvB3UqB6RRNCR2o8XReyCmt +i90GcB+dvrSOdGg28nysn9Jqw3q9SOuUfdXv2FT9RDNEXSarpXfASO4 X-Gm-Gg: Acq92OEx48hiqIocKdHF3nsNjo/vY7Y37hqTipH77+96IGyTSdLrGVbeIPdRZxNHLUE NLyJlwIp6mgx+XZdb/vKeWFd6wwnOomLR6Q/ftn+A2CpJoJ/xVYUCyNzVAvePT5e3HRvVWDlFss i2ecfCMMzdDRc7k4nbNLG/87yOVX9CNc3Z+h1gd07g1zT0jpP2jYb926q5z3ZZZY57BLoU4n0GM 2T3p446IJZIXEO8NN5wvMQUzkALQBn8nfBl/2fHqjFu1J/s3Wr1w4HlUdBvKgTgsZQEPvKytda2 yB/Mg6la3EyOlKB8lLkTBC2O4rBx/wgL//6lGFYchl8cJ/S0FYGUV6sD8AlJs3y70CqvozRjZuc Oy3BYDCG27+2CXGmzV/L/dPOKOxStBkprB5wpf2c6qshY/2xzMsTjdCR5+7Fb9knYodzwDVH69O TlLEEw/VBnLkrPDaaDymk3xlMrvBgDvG67OK10qYgsZji75fjiqXmy1uczqgtlhoNnZihYrVsk8 cWK4X6X+Z2vjvxc2eeer67Uqex9ffVhfI0= X-Received: by 2002:a05:6000:200c:b0:441:36b7:725f with SMTP id ffacd0b85a97d-4515b056aa0mr45843437f8f.5.1778596901460; Tue, 12 May 2026 07:41:41 -0700 (PDT) Received: from iku.Home ([2a06:5906:61b:2d00:77f5:545a:798:321]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45491cab9c2sm34978713f8f.31.2026.05.12.07.41.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 May 2026 07:41:41 -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 v3 3/5] drm: renesas: rz-du: Make DU reset control optional for RZ/T2H support Date: Tue, 12 May 2026 15:41:02 +0100 Message-ID: <20260512144104.761531-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260512144104.761531-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20260512144104.761531-1-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->v3: - 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