From patchwork Thu Jul 27 09:46:32 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: 13329907 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 09FD2C001DC for ; Thu, 27 Jul 2023 09:48:50 +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=cE7eLiGA0E1SSA 8K2G56wfyxnUA6TzGGpm+pznhvf4wmzaC6h4JaeDZEODPzS6AdEN6H9vGa1QZ8xxvHKVVhBLivG2M VLMFxkfOoqsTKosRW5Mk4ANftInvMysnscDOw4FFm/5/CAYDpXfTcMf7FnBAAOk/E3nuR9u/ayWXd G/1X+kpKkZMkS5tXWHxk5zQX+JSwP3rx3PRrM10J1Xs7mYMZIT9Frd8ZGFBGlN/wVw+i0c8pUMOiN iipSrP3gqdrQBNNJ+2xJ9yIbIwkmgk86RGSgNXOffLZTvfHCnlg4RoiMCjqiw7ExuA9SzfpP6ezaF /g6tLi+cqtn5y7yVYNAA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qOxba-00Csii-1p; Thu, 27 Jul 2023 09:48:22 +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 1qOxa4-00Cs24-1x; Thu, 27 Jul 2023 09:46:50 +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 B12B6660716B; Thu, 27 Jul 2023 10:46:46 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1690451207; bh=h6f7psRee+vgHmJfxJWJCr98AHCwupGoqyn4DcinahM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BvKeA0w2LcQvp7rzcZH1qY5qVCXAbNiN6rLLKiEh1pgOYiG18AE/8hJyMaNPLuk2C gY6Yc4PbG3ZYwU3NAqaDTW/LYWjN1DeRTh0i/KS+UiWkZbwJvW+WAmzgout94J0pi7 OXpW9Sn1Jkb2y6G4GIOPaP+P81jQvGlc55aLgBapPc+1NCDKTHmAtIw8SbJUsvObXL pjANphnRTdVQd9E9QaydaRMJS/uR0U1fM/yKCnSXo3iPy+HhwANIuUUdcfSSxilV1j hj2PbBTnOXj1O1BbrMhdfbEuWm6Q/4oRvbRkJKT2MnBnce9qS0xP3y0/TOL3pvQafa eXOVY5dxZbRFA== 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" Subject: [PATCH RESEND v6 10/11] drm/mediatek: gamma: Make sure relay mode is disabled Date: Thu, 27 Jul 2023 11:46:32 +0200 Message-ID: <20230727094633.22505-11-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230727094633.22505-1-angelogioacchino.delregno@collabora.com> References: <20230727094633.22505-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230727_024648_817564_D9B64ADE X-CRM114-Status: UNSURE ( 9.94 ) X-CRM114-Notice: Please train this message. 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 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); }