From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 BE07B14A619; Tue, 25 Aug 2026 14:29:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787668184; cv=none; b=cUPPxS24Gvqgyk6xFjrGK+hV2UxrBfPce4sfMDg5LSNtKEkQam1dZTb/JTE322FFmDXEoqEiehSu18iVsToHi55Y4kUFCGAPAv5ZmFzkVdJNJiXOeFjRmsrrSvGY1UobWjHJUHd7PL1LJ0VtmTBbhrZiqB2uYUu5OqsYLEX+bsw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787668184; c=relaxed/simple; bh=xp7YFnPr7Jey1TpEgkW8DsmkfqZZYBGqGu/9cmfFF+Y=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=gftGnfJZkBSLxRJ894hIcVO7JMUzvid9H7zUiuiZoRXKEgAxT5++9WWvwUumxG7Lup8JfTkIXWhBDacorKh4JYhubqqYQqFC6O4JbHC0y8Z4JSC8K6GlC+aPa3PElKBCA4/+T/t0BIlaDJmpPePUz/P0jAdDWHgtQfQ22MMn/Zc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BU7WIcn8; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BU7WIcn8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F37C71F000E9; Tue, 25 Aug 2026 14:29:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787668183; bh=WiIQneS2YjYCfWB8fWuaooVQLOMrvLBlhJyBW21n5hc=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=BU7WIcn8qYx4PJL+WLFAecegoYgIZRolaag1Uh/SaPvkWgP+XHGpSb9IFbnZ7Yrd1 ZZNfgfqPh6mOaDjGrc4ntkA0AFCSvefgolkFXpN/wm+iTU3xv6TGj8GjbCpiKrnwck FDDkLu1KbMF8tPtBKnh0s0uflbGKW9yweVpKSPRhRXI0Sh4g04T92ICnsrURNf7p3H ZWHI1gOuQm5A2eKEl+GbjSuNRNiuVRJv7LQfwHy9zeFzY10UytnmacJvbBMNDY06Aj rgfT0zLxi6kGVOsMUN8QRkTdr9Nl+9BYGQdy0aFALapmi9v9SVoX0PccsHZAe4QtGG XI5hIWUJ4+5+A== Message-ID: Date: Tue, 25 Aug 2026 16:29:32 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v11 2/2] drm/bridge: Add Lontium LT9611C(EX/UXD) MIPI DSI to HDMI driver To: Luca Ceresoli , mohit.dsor@oss.qualcomm.com Cc: Sunyun Yang , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, venkata.valluru@oss.qualcomm.com, Jessica Zhang , Dmitry Baryshkov References: <20260824-lt9611c-v7-v11-0-eb4a79cb597c@oss.qualcomm.com> <20260824-lt9611c-v7-v11-2-eb4a79cb597c@oss.qualcomm.com> <178766696083.117435.16339828039068931624.b4-review@b4> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 25/08/2026 16:09, Luca Ceresoli wrote: > >> +static struct i2c_device_id lt9611c_id[] = { >> + { "lontium,lt9611c", (kernel_ulong_t)<9611c_chip_data[CHIP_LT9611C] }, >> + { "lontium,lt9611ex", (kernel_ulong_t)<9611c_chip_data[CHIP_LT9611EX] }, >> + { "lontium,lt9611uxd", (kernel_ulong_t)<9611c_chip_data[CHIP_LT9611UXD] }, > > AFAIK there should be no vendor prefix for the i2c_device_id. Have a look > at the docs and other drivers for the best practice. This is because of bugs in the driver, which I reported at v6. Code had NULL ptr and to solve it, instead of fixing it, Lontium added such prefixes. Obviously this is a no-go and they MUST fix the null pointer in the first place. Best regards, Krzysztof