From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.inf.ufrgs.br (smtp.inf.ufrgs.br [143.54.11.23]) (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 262773BBA0D for ; Mon, 12 Oct 2026 19:18:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=143.54.11.23 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791832711; cv=none; b=Q3Gy24MZk7anZCu572aqpzrsKiRtQW8ySzfYYmzqAToz9kD47rym16sobKl4Ut5SaS7B87MRbAYNtTQkGecn0aGSz27pB5j/EW8noAC6iIh9ofCdjJyunpsFHYxi9kj9ZM+OvUdcJFiZ5L4VK5l+L19ewz/J+Vd9t084Y0rLP34= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791832711; c=relaxed/simple; bh=Ebwk2riWsfF638J7GhBlgV9zJN6hrXYr099hHSURgsY=; h=MIME-Version:Content-Type:Date:From:To:Cc:Subject:In-Reply-To: References:Message-ID; b=OutFgIUf0/6yUKSPmCsW/+FqzoGZ/P5La1S1WE+h7Z4NkvLnpiMfLWtszZ7o9yV8xvJGp+1WSox9WAbRUelL86Njj3Rypqzu3P7mIxfD7+2lJ8JXOXIflm6LPbcLqEk2BjnSdhIA28LkejTwlsFX1efKsOQnkeyqMEcVlLaTYvE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inf.ufrgs.br; spf=pass smtp.mailfrom=inf.ufrgs.br; dkim=pass (2048-bit key) header.d=inf.ufrgs.br header.i=@inf.ufrgs.br header.b=sZtJZbuc; arc=none smtp.client-ip=143.54.11.23 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inf.ufrgs.br Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=inf.ufrgs.br Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=inf.ufrgs.br header.i=@inf.ufrgs.br header.b="sZtJZbuc" Received: from webmail.inf.ufrgs.br (webmail.inf.ufrgs.br [143.54.11.45]) by smtp.inf.ufrgs.br (Postfix) with ESMTPSA id E75B0121120; Mon, 12 Oct 2026 16:18:25 -0300 (-03) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inf.ufrgs.br; s=dkim2026; t=1791832706; h=from:from:reply-to:subject:subject: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; bh=iLwzKw255x2Ho+brc0LP/HOoYhbCyaMdf4o1Ck8r4WQ=; b=sZtJZbucWJAIyNzvIH/IDUrL5x1li1A9zubNutfoU2e9GR0Xdv7YTZWpQTeG3U6Sa/xL6y EtoYEYxvj8acqI75Yo4rPSZjsa0kfpweu/N63YGiZaG18YnRHd4fkC9STgZTlBYnZNC1Xw 2mKkrhAqhMwHfUtyT5ZopNTMPNp9UkzNfDlrIwy25KX60wP/CRJ8M8Lwz3KhIJZrb2QKjw jTwYz+JMZePZ0rBFEJOMbHYkpTIifP5c0BWAKGxWxOey/6mBlDK1SSgw38PJh6B9CCcr2O 1DvuDAXTrJy3lmINple2ikR0m+WFmQjBL1cZgKNeIh/z42Q+INjisvRtzs3h1g== Received: from bd06e904.virtua.com.br ([189.6.233.4]) by webmail.inf.ufrgs.br with HTTP (HTTP/1.1 POST); Mon, 12 Oct 2026 16:18:25 -0300 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; format=flowed Content-Transfer-Encoding: 7bit Date: Mon, 12 Oct 2026 16:18:25 -0300 From: Matheus Alves de Almeida To: Louis Chauvet , Haneen Mohammed , Simona Vetter , Melissa Wen Cc: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/5] drm/vkms: support more formats and fix RGB565 regression In-Reply-To: <20260928005301.367977-1-matheus.aalmeida@inf.ufrgs.br> References: <20260928005301.367977-1-matheus.aalmeida@inf.ufrgs.br> Message-ID: <1bec074941eca133b8d555ff57b1e14e@inf.ufrgs.br> X-Sender: matheus.aalmeida@inf.ufrgs.br User-Agent: Roundcube Webmail/0.9.5 Em 2026-09-27 21:52, Matheus Alves de Almeida escreveu: > Hi, > > This series adds support for RGB332, BGR233 and BGR565 writeback. This > is done with new helpers added to make conversion easier. It also fixes > a regression in the RGB565 write conversion. > > The argb_u16_to_RGB565() code currently truncates the resulting > channels. This behavior was originally fixed by commit > ab87f558dcfb ("drm/vkms: Fix RGB565 pixel conversion"), > but the fix was lost during a refactor in commit > cc4fd2934d41 ("drm/vkms: Isolate writeback pixel conversion functions"). > The rounding behavior has been restored using the new > argb_u16_to_channels() helper. > > Matheus Alves de Almeida (5): > drm/vkms: make argb_u16_to_RGB565 round resulting values > drm/vkms: support BGR565 writeback > drm/vkms: add a helper for channel to argb_u16 conversion > drm/vkms: add support for RGB332 > drm/vkms: add support for BGR233 > > drivers/gpu/drm/vkms/vkms_formats.c | 136 ++++++++++++++++++++------ > drivers/gpu/drm/vkms/vkms_plane.c | 2 + > drivers/gpu/drm/vkms/vkms_writeback.c | 5 +- > 3 files changed, 112 insertions(+), 31 deletions(-) Hi, Gentle ping on this. Has anyone been able to take a look at it yet? Thanks, Matheus