From nobody Wed Feb 11 09:01:12 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 C8E5AC7EE26 for ; Sat, 6 May 2023 12:36:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232790AbjEFMg3 (ORCPT ); Sat, 6 May 2023 08:36:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56954 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232546AbjEFMgJ (ORCPT ); Sat, 6 May 2023 08:36:09 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9FB9D160A2 for ; Sat, 6 May 2023 05:36:04 -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 D2EFF66057B8; Sat, 6 May 2023 13:36:02 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1683376563; bh=PdN+gUkXX/P0quN1LP+5WsuYIv15xBNzV6SWlkNHBrQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X1x6RXJQnTBKWh7b9kHxqmxAFGbxRcppsgvPOKEe4HWhlotoRffkD95RGeceJYqkX Y0IhNg/eyv3C7VpZnHZmrRpUh/TLn3RyzASaMbP/v4LBbl1n3XvI1Qha4Kf/I1ctwO msRC0s4/Y368Q/wRXp9YMDIJHIrmN+HO4RNjvxv1p4lnIUsISufNRZdoDRVtdMIzcp FMkp+Zn0Gmyxsw5gRAwi0vnLOqyIfB4YckQeth0gMbmF7nyTQpiA6bo3AD5eoILFx6 aBGsmAmbKcV5ftKxQOpwssaxaGGJ0ziGuirx8K9SvtJ+dES4gzXp8v49l/qr5EUjy+ mYU3xTUnPJsGA== 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 v3 10/11] drm/mediatek: gamma: Make sure relay mode is disabled Date: Sat, 6 May 2023 14:35:48 +0200 Message-Id: <20230506123549.101727-11-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230506123549.101727-1-angelogioacchino.delregno@collabora.com> References: <20230506123549.101727-1-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 Reviewed-by: Jason-JH.Lin --- 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 c8ccc38c5170..450da7062db4 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