From patchwork Thu Jun 1 12:10:21 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: 13263677 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 399BDC77B7E for ; Thu, 1 Jun 2023 12:31:11 +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=rLpQD/uiWaZgcbtdiRSayfo3hmEScP7QLgsdYa5VARE=; b=o8bzeeSSpmfacI qbIzRX+vaeu3a5p831lsO27ow41BShvv4qR4xlY4RB7okkpZsldcoDJIwxD+VUlko/VyxKa7EARCI 1KjeHBxoMlipsxLbVAShsHliE002XBPcma/u+VCG2OY1IxPCPRbFvq7KXrigAla/cL2S4z7h7smbZ /VlsnmR9WCPtSfW+IhCWlFHKT6QjxzPHYU+r5ceY3Zh4sY8uwS9hXnQs5Suro4/PYhF5rLMZV0ZfT xyEoJCkojnm5V6YZyOmxVHQGzXl/uV351JMXAZcIEvPFmsYsvV/eOBiBsigsUT90uf45OQ5PzrDfR sRTzOCG9NfRHdTYeh0gA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q4hRz-003Xau-1E; Thu, 01 Jun 2023 12:30:43 +0000 Received: from madras.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e5ab]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q4h8Y-003O6k-0I; Thu, 01 Jun 2023 12:10:41 +0000 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 0740E6606EC6; Thu, 1 Jun 2023 13:10:35 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1685621436; bh=h6f7psRee+vgHmJfxJWJCr98AHCwupGoqyn4DcinahM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WwNzSYmzOqeJoIioc+aQvsTONAuh3cDGtd6rE4aBXNJ92klpNdZs0f0r2xc6inZNB JsCpHJcAHHqwolqKa33s9awweqNwudjgZP2OZQMEDbzGDaQXMH+fXEv+s/PN4lXGrV PkJj0jy3m2IrP4JqIzrbrkFK7yzUvInZz6Df0necDCqxi7IM+Gb/+5lTJ/pjINrzut w7/Oi5bTHOetUH+1DB2XNLs5EvA6E3xTPo9jhkglOLmlkbUF5Vq/HQBrMQe8GdEBM5 79FNz5r76x8og1naQF8GNVfyOI8TQHNml5CA43Qw+7rizXiLzKp2QMS/3tsLJLYsji Gyt58l8pgmGJQ== 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, "Jason-JH . Lin" Subject: [PATCH v5 10/11] drm/mediatek: gamma: Make sure relay mode is disabled Date: Thu, 1 Jun 2023 14:10:21 +0200 Message-Id: <20230601121022.2401844-11-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230601121022.2401844-1-angelogioacchino.delregno@collabora.com> References: <20230601121022.2401844-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230601_051038_875113_96796C8F X-CRM114-Status: GOOD ( 10.23 ) 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 --- 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 e0e2d2bdbf59..e9655b661364 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 @@ -180,6 +181,9 @@ 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); }