From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 7CCFD1A6166; Tue, 30 Jul 2024 16:48:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722358123; cv=none; b=C0FwcfuUiZp1RRAOs5f0OvHWESCMeT7VBXl7yzi/u2SaBO/P/oQkAYolnmYx+bPeFVfkbF3/OfLmnpOyCX4SbIrO/VuY24yBY7Dlg9sw1mA1a5WTNqnqKPYUBlLuvaTx61jxh6BV12m7Kc6QarT3plxFdtIIWFJjK87r7J/Ql/Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722358123; c=relaxed/simple; bh=fkU3gbX66wVHEkMgtsObgYFOETqeawzfdl/5c48QVOk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Hv9P/Yws7vlMSCanQzf2izldkI7q/XTEO72QC5i3YwO7n9RSDu4AJytZRAuF1NtBAnE9SG7P62xyeseVAjuUHxdEGH3qxc3LPzmbXqa4U7tsoayqlwNOk7L9j5a2No7BAW6fSa0oAhzie+QbvbWpdYW5t9nj9UKCAqfXzDBt/Dc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ns8irEWj; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ns8irEWj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B20C2C32782; Tue, 30 Jul 2024 16:48:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1722358123; bh=fkU3gbX66wVHEkMgtsObgYFOETqeawzfdl/5c48QVOk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ns8irEWjJOcz9EuKOMQk36uE55RTXCfX/sJwfg2krq1kISsEmwKIQYz1fDVeVbFY5 XU6RRVl6ht8RRtz+V+x40B5qwSUNq1cHrG0qhae3QIdMv+r5X+n9BYhgeN7agvp8WW k7oPg357rVpZdR485JLEiZSYYVv3jkbkGLleZolg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, AngeloGioacchino Del Regno , CK Hu , Hsiao Chien Sung , Chun-Kuang Hu , Sasha Levin Subject: [PATCH 6.10 325/809] drm/mediatek: Use 8-bit alpha in ETHDR Date: Tue, 30 Jul 2024 17:43:21 +0200 Message-ID: <20240730151737.441754233@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240730151724.637682316@linuxfoundation.org> References: <20240730151724.637682316@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hsiao Chien Sung [ Upstream commit 231c020141cb150a59f5b28379cad82ff7bad899 ] 9-bit alpha (max=0x100) is designed for special HDR related calculation, which should be disabled by default. Change the alpha value from 0x100 to 0xff in 8-bit form. Fixes: d886c0009bd0 ("drm/mediatek: Add ETHDR support for MT8195") Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: CK Hu Signed-off-by: Hsiao Chien Sung Link: https://patchwork.kernel.org/project/dri-devel/patch/20240620-igt-v3-2-a9d62d2e2c7e@mediatek.com/ Signed-off-by: Chun-Kuang Hu Signed-off-by: Sasha Levin --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c index 156c6ff547e86..d7d16482c9473 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -50,7 +50,6 @@ #define MIXER_INX_MODE_BYPASS 0 #define MIXER_INX_MODE_EVEN_EXTEND 1 -#define DEFAULT_9BIT_ALPHA 0x100 #define MIXER_ALPHA_AEN BIT(8) #define MIXER_ALPHA 0xff #define ETHDR_CLK_NUM 13 @@ -169,7 +168,7 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, alpha_con = MIXER_ALPHA_AEN | MIXER_ALPHA; mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, alpha_con ? false : true, - DEFAULT_9BIT_ALPHA, + MIXER_ALPHA, pending->x & 1 ? MIXER_INX_MODE_EVEN_EXTEND : MIXER_INX_MODE_BYPASS, align_width / 2 - 1, cmdq_pkt); -- 2.43.0