From patchwork Thu May 18 10:48:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13246441 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 17A3FC7EE2C for ; Thu, 18 May 2023 10:49:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6C50010E505; Thu, 18 May 2023 10:49:16 +0000 (UTC) Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5780C10E058 for ; Thu, 18 May 2023 10:49:12 +0000 (UTC) Received: from IcarusMOD.eternityproject.eu (unknown [IPv6:2001:b07:2ed:14ed:a962:cd4d:a84:1eab]) (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 5E15666059A8; Thu, 18 May 2023 11:49:10 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1684406951; bh=AE9iGK1lfVVDFBdwJsBq/oCrjdgmEivKNGIdMO9796U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nUnU9DLHgyjY+7bF1oLROH/6pCYSR1KrGlUHqccJoPG4gzC+SI/iRW7Qmz68TAHv3 p3sGyyREOMJh0Ct7uPkEHdjGdSEWPClXPKPvdXVrgusuNmpLsXWe5dgFNwk4jAR50I z3Hlol+Mnx+TirsI8L6kETCOXO/JKXkS6BWwvn0g5MYjxJTId00a2b2ywvLCEpglwh JWXRDih6pZp8SHlYHbgCk9Rz2Dz1ugRm8rzzM5IgpjE0SjnvYqB80SMXbjcauoy/RZ v8Wq8WuQ/KHk6vS7GC8i23mqgv6nNtGLv/EUP8c2/5OjYQ4LiZhjgHPbrD3y7V27fY Vwlp3imfz8P9A== From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Subject: [PATCH v4 10/11] drm/mediatek: gamma: Make sure relay mode is disabled Date: Thu, 18 May 2023 12:48:56 +0200 Message-Id: <20230518104857.124265-11-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230518104857.124265-1-angelogioacchino.delregno@collabora.com> References: <20230518104857.124265-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Jason-JH . Lin" , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, wenst@chromium.org, matthias.bgg@gmail.com, kernel@collabora.com, linux-arm-kernel@lists.infradead.org, angelogioacchino.delregno@collabora.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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/mediatek/mtk_disp_gamma.c index 9ae08a2d7da2..ba8a0f93f184 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 __iomem *regs, struct drm_crt /* Enable the gamma table */ cfg_val |= FIELD_PREP(GAMMA_LUT_EN, 1); + /* Disable RELAY mode to pass the processed image */ + cfg_val &= ~GAMMA_RELAY_MODE; + writel(cfg_val, regs + DISP_GAMMA_CFG); }