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 85A501A6169; Tue, 30 Jul 2024 16:31:02 +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=1722357062; cv=none; b=seJxYulWleBQIncUvKLziExCIjeXb1gNNz/S6jdhLenC/GyjBUFlNdWeoQfWU/lcSfK4yMWbuv59KK3xRVc2uvG9hB5ZTU6Lter67CPOdWUbetufXcVda0dLOgMKKHWOoGQjda/bxIrFdrpO9yBBlvSPweJxXDdhdjqZxAr2k28= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722357062; c=relaxed/simple; bh=XPcws5S3cElPhUpNRqLMX91/O1sJw7YfedqdBmIquVk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HpumP1otKFztVRcMu495b9L0ZQGdgUIOQlmKbKsCw0dvoJ5LRsfgIc/+P1lH9xnw3v1P+zrcIuh6Pvs4jaXBpuXuuj5OqHrAlPC8yfnvm3cBiJeNIFOyXlsPurJMPdcVyfu/0LC2jx7beMEtGXDmT4CXCnbo8XPLj1lgN0lo6gM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=wlMwk3Xh; 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="wlMwk3Xh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0E2C7C32782; Tue, 30 Jul 2024 16:31:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1722357062; bh=XPcws5S3cElPhUpNRqLMX91/O1sJw7YfedqdBmIquVk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wlMwk3XhB0gsQ8bQnsKf+u1WaWJeXk1ny+UVu/mG7fz+7XnUSa/XWXFp9ESP6bDT8 i7G8Nhz/XiP7qPnu6PKd5a7RpE6DS1Q/XzJ0uMbw7LZokO4FBcj/HTMurl9YrVzngb 7jwHru8F+R3TTaenxBkzlY4aaYbYUc+67xw2/Nvc= 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 6.6 214/568] drm/mediatek: Use 8-bit alpha in ETHDR Date: Tue, 30 Jul 2024 17:45:21 +0200 Message-ID: <20240730151648.236568911@linuxfoundation.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240730151639.792277039@linuxfoundation.org> References: <20240730151639.792277039@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-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 db7ac666ec5e1..5b5a0e149e0a3 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