From nobody Fri Dec 19 09:47:53 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (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 8E65730ACF0 for ; Thu, 23 Oct 2025 10:32:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761215571; cv=none; b=CxPI+afzozqsTWjVJEvhoCoZtXYlnQWKYfLJakrsUryjKlICZzunkymnQgaBVU6lSHhoKQkIWnQKhjCic29YB7ndMVvTj8BlpUVgoxn3luaB7dwYbBEWcDEqZShtIAXL15jiHP7ixwVzeCpo+gK++GWdS1mBFq4O8PTYVY7n6s0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761215571; c=relaxed/simple; bh=pshY6UD8UkjtnkzdR6DQu8EZEgj8tUqCQiyiG5CEPC0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=D5jNn/ZaY97+mNm2ka9LksgRHgWekzJjsJ7zdwov8nnAEDZJ48Vr02sid0fI4YfaGUKDYKvv+gjCSYXvm9BURMas3BWSjqSrOULTI31cim9nsa5LMgTT4LC3Enz8BBR+r/+EqHQBB905JmnJafiq444yOVe67Z2S4Ns83F4NOoI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=e+UDP96w; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="e+UDP96w" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1761215566; bh=pshY6UD8UkjtnkzdR6DQu8EZEgj8tUqCQiyiG5CEPC0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=e+UDP96wsXrRefn9+r4v66E5EEWev8+78TXxxGBkWC91zFwEwMXoO46du0PRXrCtT Z1KpnNE2SuzchyAmauc0wkW72SQIlDJGnYjBByOtfYZpIne+qjyqc/Hoy2ordEkX1m DuEXoHBZcnd53nkNYB5+atAIccUZTFagsh8VGqkaMS0VxX873HgUiZPmi7lWwLXwg/ UQayhlv75ZQOQxsmCTsJZB5BHfhwdIgdDPBq80HrqMqnPDOlm4wGYHQQBBK9SS+4bG ffm36TLa9J8BZu0LLyT6zgUU22y+gBO+Suqk1cqxOg+LReL0FYZQlGvXrRq8e0HkSu OKMd61yuB5QSA== Received: from yukiji.home (amontpellier-657-1-116-247.w83-113.abo.wanadoo.fr [83.113.51.247]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: laeyraud) by bali.collaboradmins.com (Postfix) with ESMTPSA id 06BD517E130E; Thu, 23 Oct 2025 12:32:45 +0200 (CEST) From: Louis-Alexis Eyraud Date: Thu, 23 Oct 2025 12:32:37 +0200 Subject: [PATCH v11 11/11] drm/mediatek: mtk_hdmi_common: Defer probe when ddc i2c bus isn't available yet Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251023-mediatek-drm-hdmi-v2-v11-11-7873ec4a1edf@collabora.com> References: <20251023-mediatek-drm-hdmi-v2-v11-0-7873ec4a1edf@collabora.com> In-Reply-To: <20251023-mediatek-drm-hdmi-v2-v11-0-7873ec4a1edf@collabora.com> To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Simona Vetter , Matthias Brugger , AngeloGioacchino Del Regno , CK Hu Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sjoerd Simons , Louis-Alexis Eyraud X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1761215558; l=1178; i=louisalexis.eyraud@collabora.com; s=20250113; h=from:subject:message-id; bh=XsbE4tQJMGMBoAPaEfkaTGz6CyRspYxpULZRAhEc9HA=; b=jHM0DXftZ9YMARvOzCYpGBWDuH2Gl+WcZOe8zgOOBXZj0LbZwiNoPP8jG7o0e7V6ye5TA6qQj Wu0IGEORKtODCLQe9XLRzDcChlVB5986WcjTgjzDojSzICaeSxWYlmv X-Developer-Key: i=louisalexis.eyraud@collabora.com; a=ed25519; pk=CHFBDB2Kqh4EHc6JIqFn69GhxJJAzc0Zr4e8QxtumuM= From: Sjoerd Simons The i2c adapter for ddc might not be available yet due to e.g. its module not yet being loaded. To handle that defer probing rather then returning a fatal error when probing. Signed-off-by: Sjoerd Simons Signed-off-by: Louis-Alexis Eyraud --- drivers/gpu/drm/mediatek/mtk_hdmi_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/m= ediatek/mtk_hdmi_common.c index 9cd7add3dd949e2920c876f7bcf990350c42d215..73b1c012aaa8a27168867c515e1= d006c88dfff54 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c @@ -319,7 +319,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdm= i, struct platform_device hdmi->ddc_adpt =3D of_find_i2c_adapter_by_node(i2c_np); of_node_put(i2c_np); if (!hdmi->ddc_adpt) - return dev_err_probe(dev, -EINVAL, "Failed to get ddc i2c adapter by nod= e\n"); + return dev_err_probe(dev, -EPROBE_DEFER, "Failed to get ddc i2c adapter = by node\n"); =20 ret =3D mtk_hdmi_get_cec_dev(hdmi, dev, np); if (ret =3D=3D -ENOTSUPP) --=20 2.51.0