From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (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 B216032E6BD for ; Fri, 19 Dec 2025 11:59:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766145572; cv=none; b=Lj2xLpWpB6e85OwfBfaUFdh+ZJqJBfxcj0NpKFUAHpMMA6Z7vLabLIapT/kb3XTHkew7hNhWkZU0h4D/LhQCeTxUv5bIVIw1tvut+EJcGzzvyITo+qIfz+TtpjXEmbTsja8on1f4QB/WFlD+BqW68n5VF47LWnZtpEtnpNVwp3A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766145572; c=relaxed/simple; bh=xwKyTfZVChmPPjGFKCt9DR8NIFdSEGTSKXbGAjKrg70=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=CogwmAGbYRx7lJ95Lq5I4bAmOafPhodkWmm3YTBYxQMoH5m8MMl4i9h4G7UVdGoE1qqXyCb+hpGc/hZuvuK3kHzsOg3x9PaclpJ50rjEgTXlzWovN80u7hdT32q4/RTP2mXC+5ZW1DzeUaWXKTb4Q2EMq+2c9bH3M17UVK4H4ZE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=hVT9nyXl; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="hVT9nyXl" Received: from [192.168.88.20] (91-158-153-178.elisa-laajakaista.fi [91.158.153.178]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 7678A596; Fri, 19 Dec 2025 12:59:10 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1766145551; bh=xwKyTfZVChmPPjGFKCt9DR8NIFdSEGTSKXbGAjKrg70=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=hVT9nyXlFSrB1voaKEPxuUaIIEsajM+Dng/rYmOtYGC6k0zm3+NH6Hrc0nVv6H6a7 2WpCL6iyY/sb9bB8fZzrdchwJOggc7JpLi74wwgf4XXG/0a5Q+xBiifeMsF3faEbmf HV3jBktbGK/lg56zq9mM+pZiEOIUcgY7dMAWXOK4= Message-ID: <533168f1-1655-4947-9032-b08463f502d7@ideasonboard.com> Date: Fri, 19 Dec 2025 13:59:14 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] drm: xlnx: zynqmp_kms: 16 bpp fixes for Xorg startup on AMD KV260 To: Mikko Rapeli , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Michal Simek , Bill Mills , Ilias Apalodimas References: <20251205123751.2257694-1-mikko.rapeli@linaro.org> From: Tomi Valkeinen Content-Language: en-US Autocrypt: addr=tomi.valkeinen@ideasonboard.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Mikko, On 05/12/2025 14:37, Mikko Rapeli wrote: > Hi, > > Currently on default yocto images Xorg fails to start on AMD KV260 > because 24/32 color depth gets detected but does not actually work. > > These two patches fix the issue and now 16 bpp gets detected > and Xorg starts and draws on external HDMI display using > kernel.org based linux-yocto kernel. > > Anatoliy Klymenko (1): > drm: xlnx: zynqmp_kms: Init fbdev with 16 bit color > > Mikko Rapeli (1): > drm: xlnx: zynqmp_kms: set preferred_depth to 16 bpp > > drivers/gpu/drm/xlnx/zynqmp_kms.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > Did you notice the few already sent serieses on the list where the topic has been discussed? [PATCH] drm: xlnx: zynqmp_dp: Support DRM_FORMAT_XRGB8888 [PATCH 0/3] drm: zynqmp: Make the video plane primary Or is there something else on KV260 that messes up the 24 bit color? Tomi