From nobody Fri Sep 20 18:49:47 2024 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 C64C0C7EE23 for ; Mon, 12 Jun 2023 09:06:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232069AbjFLJGe (ORCPT ); Mon, 12 Jun 2023 05:06:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60536 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233630AbjFLJFi (ORCPT ); Mon, 12 Jun 2023 05:05:38 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [46.235.227.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 30E8B49CB for ; Mon, 12 Jun 2023 02:02:13 -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 3360F66056AA; Mon, 12 Jun 2023 10:02:11 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1686560531; bh=h6f7psRee+vgHmJfxJWJCr98AHCwupGoqyn4DcinahM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=n2IiMBIxHLe63zm/clp9XFbDlNVwIDlgISj+BAW3ggFcAS700c9b+WwgifPTQVQJK 3dBAFBTf+8PBDoK8zAVCggsElh1qfxs/Z/fu5VtzY3cwplaW+OZxrmkSgalVpn4QSc 27dwhOrJTq8gschHWvEB9W/SD4GgahR3+ctvMF2wESmXGwm3SsHXGZVJzlZ4rX/Qeg LJYpJvbElaR0A2Pitk09q2kB4e5UJH03+W0H+Mi0E9MwkwgD5PpWCDuCC5hMdfxNWt Nqnl9TWBsFoU7DDLA7LhSTfpedPUAh/LRBvTv1KniW+7WrO6WSALUNsw9Lc5O4cbJR +LccmSfM94puA== 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 v6 10/11] drm/mediatek: gamma: Make sure relay mode is disabled Date: Mon, 12 Jun 2023 11:01:56 +0200 Message-Id: <20230612090157.68205-11-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230612090157.68205-1-angelogioacchino.delregno@collabora.com> References: <20230612090157.68205-1-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 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 __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