From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 44B72307AC6 for ; Tue, 6 Jan 2026 07:41:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767685302; cv=none; b=THLk52j3GsSPFMPGKdErIj1c3ovtZQy7ccEKeJgM+3y6YK+5x9u8ESZ/i/iIIpynftzv2tz/4dzHF3NzjvhQgQTvHyH4a5ekwFCsZRsgFoLkMRC3nB8nbFLiizk8h2kDqncn2CRyVriSgrf+OpHDaoNTx4jftgAdoRTEj6qHqhk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767685302; c=relaxed/simple; bh=XIcZe+pdbW2jDotjFqvxq/b7fESrJccmAKNCaVAPAdA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=VisGxljr4BtKGHl0FZ7ikUXbBodrpSJ6C0iyR0/nSlzNLD+OL1ytFRZJESZaCbV3hOSZcDutuJ7qLkvFBeI61SZR+8y7XSkQTv9TF5VzKdxkG4CnumkxdLL8xHwH/Do2wTPJrCDupW4jl35wV5w8McHGQRnEIdf8RiJlc/6PSJg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=IVIbWsKr; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=piig4lAg; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=IVIbWsKr; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=piig4lAg; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="IVIbWsKr"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="piig4lAg"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="IVIbWsKr"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="piig4lAg" Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (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) by smtp-out1.suse.de (Postfix) with ESMTPS id 4BBD1338B8; Tue, 6 Jan 2026 07:41:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1767685298; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=dtvVfSW3sRZbLON5zW66Z5TmPMmANXuSS/2VLh6VV1s=; b=IVIbWsKrS2sheHINYs+fbTb/SQqoDW6j/oKvigOf1b2zXUBsEZEd2Ei1yqvTA+ffTnJMtl jtQWDa8oOqytfO6bX/pfA3/nj8R78tF/Qlr9GrE5Rsx17Zb1rJDSXzJV6UV5D890mumJ0T YPL32LfeQxNZiTW+/4Wj4SVcFCnsQ/M= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1767685298; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=dtvVfSW3sRZbLON5zW66Z5TmPMmANXuSS/2VLh6VV1s=; b=piig4lAgjPtqfk68d50HzFwxKKnR7aXqoyVj8a+unN1bvODMGASQu8VptGDNCp374g4e8u 00jWD4OZuWPWtLCw== Authentication-Results: smtp-out1.suse.de; dkim=pass header.d=suse.de header.s=susede2_rsa header.b=IVIbWsKr; dkim=pass header.d=suse.de header.s=susede2_ed25519 header.b=piig4lAg DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1767685298; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=dtvVfSW3sRZbLON5zW66Z5TmPMmANXuSS/2VLh6VV1s=; b=IVIbWsKrS2sheHINYs+fbTb/SQqoDW6j/oKvigOf1b2zXUBsEZEd2Ei1yqvTA+ffTnJMtl jtQWDa8oOqytfO6bX/pfA3/nj8R78tF/Qlr9GrE5Rsx17Zb1rJDSXzJV6UV5D890mumJ0T YPL32LfeQxNZiTW+/4Wj4SVcFCnsQ/M= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1767685298; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=dtvVfSW3sRZbLON5zW66Z5TmPMmANXuSS/2VLh6VV1s=; b=piig4lAgjPtqfk68d50HzFwxKKnR7aXqoyVj8a+unN1bvODMGASQu8VptGDNCp374g4e8u 00jWD4OZuWPWtLCw== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (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) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id DDDBA3EA63; Tue, 6 Jan 2026 07:41:37 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id i6RYNLG8XGlSCwAAD6G6ig (envelope-from ); Tue, 06 Jan 2026 07:41:37 +0000 Message-ID: <5f570a3b-7bee-43e0-9a36-3d106984fec6@suse.de> Date: Tue, 6 Jan 2026 08:41:37 +0100 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 , Tomi Valkeinen Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , David Airlie , Simona Vetter , Michal Simek , Bill Mills , Ilias Apalodimas References: <20251205123751.2257694-1-mikko.rapeli@linaro.org> <533168f1-1655-4947-9032-b08463f502d7@ideasonboard.com> Content-Language: en-US From: Thomas Zimmermann Autocrypt: addr=tzimmermann@suse.de; keydata= xsBNBFs50uABCADEHPidWt974CaxBVbrIBwqcq/WURinJ3+2WlIrKWspiP83vfZKaXhFYsdg XH47fDVbPPj+d6tQrw5lPQCyqjwrCPYnq3WlIBnGPJ4/jreTL6V+qfKRDlGLWFjZcsrPJGE0 BeB5BbqP5erN1qylK9i3gPoQjXGhpBpQYwRrEyQyjuvk+Ev0K1Jc5tVDeJAuau3TGNgah4Yc hdHm3bkPjz9EErV85RwvImQ1dptvx6s7xzwXTgGAsaYZsL8WCwDaTuqFa1d1jjlaxg6+tZsB 9GluwvIhSezPgnEmimZDkGnZRRSFiGP8yjqTjjWuf0bSj5rUnTGiyLyRZRNGcXmu6hjlABEB AAHNJ1Rob21hcyBaaW1tZXJtYW5uIDx0emltbWVybWFubkBzdXNlLmRlPsLAjgQTAQgAOAIb AwULCQgHAgYVCgkICwIEFgIDAQIeAQIXgBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftODH AAoJEGgNwR1TC3ojx1wH/0hKGWugiqDgLNXLRD/4TfHBEKmxIrmfu9Z5t7vwUKfwhFL6hqvo lXPJJKQpQ2z8+X2vZm/slsLn7J1yjrOsoJhKABDi+3QWWSGkaGwRJAdPVVyJMfJRNNNIKwVb U6B1BkX2XDKDGffF4TxlOpSQzdtNI/9gleOoUA8+jy8knnDYzjBNOZqLG2FuTdicBXblz0Mf vg41gd9kCwYXDnD91rJU8tzylXv03E75NCaTxTM+FBXPmsAVYQ4GYhhgFt8S2UWMoaaABLDe 7l5FdnLdDEcbmd8uLU2CaG4W2cLrUaI4jz2XbkcPQkqTQ3EB67hYkjiEE6Zy3ggOitiQGcqp j//OwE0EWznS4AEIAMYmP4M/V+T5RY5at/g7rUdNsLhWv1APYrh9RQefODYHrNRHUE9eosYb T6XMryR9hT8XlGOYRwKWwiQBoWSDiTMo/Xi29jUnn4BXfI2px2DTXwc22LKtLAgTRjP+qbU6 3Y0xnQN29UGDbYgyyK51DW3H0If2a3JNsheAAK+Xc9baj0LGIc8T9uiEWHBnCH+RdhgATnWW GKdDegUR5BkDfDg5O/FISymJBHx2Dyoklv5g4BzkgqTqwmaYzsl8UxZKvbaxq0zbehDda8lv hFXodNFMAgTLJlLuDYOGLK2AwbrS3Sp0AEbkpdJBb44qVlGm5bApZouHeJ/+n+7r12+lqdsA EQEAAcLAdgQYAQgAIAIbDBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftOH6AAoJEGgNwR1T C3ojVSkIALpAPkIJPQoURPb1VWjh34l0HlglmYHvZszJWTXYwavHR8+k6Baa6H7ufXNQtThR yIxJrQLW6rV5lm7TjhffEhxVCn37+cg0zZ3j7zIsSS0rx/aMwi6VhFJA5hfn3T0TtrijKP4A SAQO9xD1Zk9/61JWk8OysuIh7MXkl0fxbRKWE93XeQBhIJHQfnc+YBLprdnxR446Sh8Wn/2D Ya8cavuWf2zrB6cZurs048xe0UbSW5AOSo4V9M0jzYI4nZqTmPxYyXbm30Kvmz0rYVRaitYJ 4kyYYMhuULvrJDMjZRvaNe52tkKAvMevcGdt38H4KSVXAylqyQOW5zvPc4/sq9c= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Flag: NO X-Spam-Score: -4.51 X-Rspamd-Queue-Id: 4BBD1338B8 X-Spamd-Result: default: False [-4.51 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RCVD_TLS_ALL(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCPT_COUNT_TWELVE(0.00)[13]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[lists.freedesktop.org,lists.infradead.org,vger.kernel.org,ideasonboard.com,linux.intel.com,kernel.org,gmail.com,ffwll.ch,amd.com,linaro.org]; TO_DN_SOME(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:url,imap1.dmz-prg2.suse.org:rdns,imap1.dmz-prg2.suse.org:helo,linaro.org:email,suse.de:dkim,suse.de:mid]; SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; DNSWL_BLOCKED(0.00)[2a07:de40:b281:106:10:150:64:167:received,2a07:de40:b281:104:10:150:64:97:from]; DKIM_TRACE(0.00)[suse.de:+] X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Rspamd-Action: no action X-Spam-Level: Hi Am 22.12.25 um 09:58 schrieb Mikko Rapeli: > Hi, > > On Fri, Dec 19, 2025 at 02:30:11PM +0200, Mikko Rapeli wrote: >> On Fri, Dec 19, 2025 at 01:59:14PM +0200, Tomi Valkeinen wrote: >>> On 05/12/2025 14:37, Mikko Rapeli wrote: >>>> 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 >> Oh I wasn't aware of these. >> >>> Or is there something else on KV260 that messes up the 24 bit color? >> These look very similar and likely fix the X11 startup. I will give them >> a try. > Right, now I've tested: > > * these patches from Anatoliy and me to help X11 use 16bpp mode by default > and removes the need to manually setup Xorg for 16bpp > * "drm: xlnx: zynqmp_dp: Support DRM_FORMAT_XRGB8888" which enables the X11 default > 24bpp to work, no need to set Xorg config to 16bpp > * "drm: zynqmp: Make the video plane primary" which also fixes the X11 default > 24bpp to work, no need to set Xorg config to 16bpp > > All of these fix HDMI graphics output on AMD KV260 board with yocto genericarm64 machine > and core-image-sato image which includes Xorg. The graphics rendering is still > very slow but I think that is a different problem. > > I guess the last series from Sean Anderson is moving forward so I'll > reply to that thread separately. Just want to say that the series here improves xlnx and makes it a 'better' driver. IMHO the changes should be merged independently from what happens with the other series. Best regards Thomas > > Tested-by: Mikko Rapeli > > Cheers, > -Mikko -- -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com GF: Jochen Jaser, Andrew McDonald, Werner Knoblich, (HRB 36809, AG Nürnberg)