From nobody Tue Feb 10 20:06:48 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E89A9C77B7F for ; Wed, 3 May 2023 11:50:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230128AbjECLuH (ORCPT ); Wed, 3 May 2023 07:50:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229939AbjECLtp (ORCPT ); Wed, 3 May 2023 07:49:45 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 937DE5FCC for ; Wed, 3 May 2023 04:49:40 -0700 (PDT) Received: from IcarusMOD.eternityproject.eu (unknown [IPv6:2001:b07:2ed:14ed:c5f8:7372:f042:90a2]) (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) (Authenticated sender: kholk11) by madras.collabora.co.uk (Postfix) with ESMTPSA id 6ACB766056D2; Wed, 3 May 2023 12:49:38 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1683114579; bh=ivRmnwk1whxWeBslyrKNoyOanuLsoevQ051ndDHcIq8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=S60/A5woRGn/85G8+eIvnOss5a6G00x/v5ETzj/ufqOit4EOMwVbO3dCaEqE6C6/L v4MSQzvADkdxPmLIQ+wmS5ZjjmCAllgiy12asXiOUEa+5vrahIx+bU7TrC2cma+czj CRExLpz8e2xrL5OgB7kT3Wjsuj3Ib+8D03EAGzphshLYigNAnswCcRlv4DiZX/hDhp csjv71++6Wm05QM24NxMtofPsay/rMI8HkBqE/JbgAS9UfwM03Pwj+QnIAKyFhUOva pwm56cWyzkV9x0nykjXMCUnL81+9qVvBXKtzWTkdCObe46iTC584AbAivBeUiTkfNc M6JKrUcCZfjfA== From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, daniel@ffwll.ch, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, wenst@chromium.org, kernel@collabora.com Subject: [PATCH v2 10/11] drm/mediatek: gamma: Make sure relay mode is disabled Date: Wed, 3 May 2023 13:49:22 +0200 Message-Id: <20230503114923.156985-11-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230503114923.156985-1-angelogioacchino.delregno@collabora.com> References: <20230503114923.156985-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Disable relay mode at the end of LUT programming to make sure that the processed image goes through. Signed-off-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/me= diatek/mtk_disp_gamma.c index d5da3e84cd53..44f397f88d0a 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -20,6 +20,7 @@ #define DISP_GAMMA_EN 0x0000 #define GAMMA_EN BIT(0) #define DISP_GAMMA_CFG 0x0020 +#define GAMMA_RELAY_MODE BIT(0) #define GAMMA_LUT_EN BIT(1) #define GAMMA_DITHERING BIT(2) #define DISP_GAMMA_SIZE 0x0030 @@ -184,6 +185,9 @@ void mtk_gamma_set_common(struct device *dev, void __io= mem *regs, struct drm_crt /* Enable the gamma table */ cfg_val |=3D FIELD_PREP(GAMMA_LUT_EN, 1); =20 + /* Disable RELAY mode to pass the processed image */ + cfg_val &=3D ~GAMMA_RELAY_MODE; + writel(cfg_val, regs + DISP_GAMMA_CFG); } =20 --=20 2.40.1