From patchwork Mon Jul 31 13:04:38 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: 13334618 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 64A8DC001E0 for ; Mon, 31 Jul 2023 13:06:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=2k3wbBgCmPSlS1CId0VmdOpOb7yoASn3lg805+0bGsk=; b=Nk0Hit//3yNgGB agKF7NuCTp1X1z1eneD6hhFLC5UoMUpuKocKvTls3KPlipDNW+GDlvb5z82ujJTxB2GpQpHAliafv j1+Z1NKOixFGVvwAg/qd7awcajhBXY/ek8Ffhm7f3BTppSggf5DCCrvd2LAUMKQHQbeMZOGZIbPzY vCGGKsGcTCJ2rEP2MsZPsv1cZg7KgtrDZS0koXinSaeNeDXlEKmC/YsQefafTFfkqy6B+hHz0rPY+ FH5bYP5f+X9mBfHFCo91cRqgWb1nFLiMXAkoVH4SSOwWUL8emWzihrzW9ori5V2ibVCtB/uvWkGCg 9ysVBCZJCYZXYeeqmU/g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qQSbV-00FgQt-2v; Mon, 31 Jul 2023 13:06:29 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qQSa0-00FfkU-19; Mon, 31 Jul 2023 13:04:57 +0000 Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (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 6ED3666070F7; Mon, 31 Jul 2023 14:04:54 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1690808695; bh=ku3saUJmkxnMvFquNrLcvYui7sCcvn9fbu+KQWEoQ/g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lcyrATkc+TEKSOg4PgIF2EfzSGDC+xLhHA8q5zRAIl+rwklu+l4nJskht8U17VmIV vZK7cjeSoYK+wLz0/1KsZcFid0bZnqCTLBpzJBjt2Irzx293MIDWLkcNJJjkShYQR7 YBhHz17sZI55I2kfx6KN2GFNQsboVrFvD3dHo7Utfovqp7MuGUaF5T+kzEU6BRxsVc 3gX28ifHDhByecdtOp/C6pL8sExcrriURNLKk9mJjqA+FXDKCo5Tu3WLgaPbQIQipN 7mtdM9rohkCX4n+nDxqvOsKweYvCwao/72ZwcrT7ELm+5bHevGb7F1ropoHLE2aqQo fJrSESViVMlxA== 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, ehristev@collabora.com, "Jason-JH . Lin" , Alexandre Mergnat Subject: [PATCH v7 10/13] drm/mediatek: gamma: Make sure relay mode is disabled Date: Mon, 31 Jul 2023 15:04:38 +0200 Message-ID: <20230731130441.173960-11-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230731130441.173960-1-angelogioacchino.delregno@collabora.com> References: <20230731130441.173960-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230731_060456_528328_CC506FBE X-CRM114-Status: GOOD ( 10.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 Reviewed-by: Alexandre Mergnat --- 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 a846d0dbaa69..659d5c512238 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -19,6 +19,7 @@ #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 @@ -195,6 +196,9 @@ 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); }