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h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=h4aGWKHG9lNs8tPkSgbQhaVtmHWxRIY+548H6PRQugZTomVEvRjznLDA3+F4pgshr K+wBMQ4nqE46ZyZ11rDKK3bUSaZmuOeKk+ajaR25cR9/Yz9mnDZcYtlgttrgxYNA0A Yzw6YRvShjDJdFtcm+rCVOOJiOkv+H+6iUh2U/kV1PbGCX/fndVpoDoKdNgAdDRMcI PUTZ4hqEw3vg3NkgaZdG8jkiEEff3UyyOURr5PC7W/zLPKDuPza85IJKGOLCKTMaVq C/PM+DgJ6NesgK+VlEehAMyJq87OcpthdR4x/he2ynZVwkpK8e0CIugtZ6yIfZAkjH Q29oO6zU9hyUA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4A38C2BB85; Wed, 19 Jun 2024 16:38:44 +0000 (UTC) From: Hsiao Chien Sung via B4 Relay Date: Thu, 20 Jun 2024 00:38:42 +0800 Subject: [PATCH v3 02/14] drm/mediatek: Use 8-bit alpha in ETHDR MIME-Version: 1.0 Message-Id: <20240620-igt-v3-2-a9d62d2e2c7e@mediatek.com> References: <20240620-igt-v3-0-a9d62d2e2c7e@mediatek.com> In-Reply-To: <20240620-igt-v3-0-a9d62d2e2c7e@mediatek.com> To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , AngeloGioacchino Del Regno , CK Hu , Bibby Hsieh , Daniel Kurtz , Mao Huang , "Nancy.Lin" Cc: YT Shen , dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hsiao Chien Sung X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1718815123; l=1391; i=shawn.sung@mediatek.com; s=20240616; h=from:subject:message-id; bh=7umBnacXHY95A+TiUODUrNhd3bD2WRNrF+DOB/ds4t8=; b=BMG77zft9eH3Te3rgMGiWvej9yoe0q1+9thWcfprzf6tjSNlo1Ze6n2dxH1SlPwrT5Ds80vNk 7dZANunCC3LDuyQwcnlkz8iM7TznwAYRWuGA01zflm7nBwNyx7NYg/4 X-Developer-Key: i=shawn.sung@mediatek.com; a=ed25519; pk=lq1w8BuWDINX+4JHjGHhhbAU5ICP+cL9VCj7wn+cEDA= X-Endpoint-Received: by B4 Relay for shawn.sung@mediatek.com/20240616 with auth_id=172 X-Original-From: Hsiao Chien Sung X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240619_173851_744979_42516FAE X-CRM114-Status: GOOD ( 10.09 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: shawn.sung@mediatek.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Hsiao Chien Sung 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: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: CK Hu Signed-off-by: Hsiao Chien Sung --- 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 156c6ff547e8..d7d16482c947 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);