From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52072C04AAE for ; Tue, 7 May 2019 05:45:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2294D20578 for ; Tue, 7 May 2019 05:45:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557207909; bh=8NQddyDvhDHI0W0/+44DvOna4t2fOYlxJuDCeJ9gO48=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=D6FBJika0swyKk1SsIE0I0byxX5HwaPvOT4AhcEFB1H0Ngyzi5KGG3b0yMce64cZs /WY5gFzT8DFRykDm6I+lqH74rSCx7ip+C238Yz/arRGBf/otIYnpryygBSiqXXwI/s c5pfZLvU70vsSV21SvV6DrPC1JFjhuDQfhjdOOIc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729512AbfEGFmU (ORCPT ); Tue, 7 May 2019 01:42:20 -0400 Received: from mail.kernel.org ([198.145.29.99]:33192 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729478AbfEGFmL (ORCPT ); Tue, 7 May 2019 01:42:11 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C0D53206A3; Tue, 7 May 2019 05:42:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1557207730; bh=8NQddyDvhDHI0W0/+44DvOna4t2fOYlxJuDCeJ9gO48=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ibh79mEQybOM4Q2gVFdhdgJN1MgGrzQN7crRcWn9fjGZ6kZZdWOjFqlB19tCZ7TJG gJC1HN5WcXoWB8cXEV/WVKnsYtKd+tqa8XnFTe1LDgJaW/I50M4kZN38MMwN8IfZ7m ugs7LNHj/1Mx7uXR7vQeQwx53h8bLv2H2mU7kg4g= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Lucas Stach , Jonathan Marek , Philipp Zabel , Sasha Levin , dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 4.9 22/25] gpu: ipu-v3: dp: fix CSC handling Date: Tue, 7 May 2019 01:41:19 -0400 Message-Id: <20190507054123.32514-22-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190507054123.32514-1-sashal@kernel.org> References: <20190507054123.32514-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Lucas Stach [ Upstream commit d4fad0a426c6e26f48c9a7cdd21a7fe9c198d645 ] Initialize the flow input colorspaces to unknown and reset to that value when the channel gets disabled. This avoids the state getting mixed up with a previous mode. Also keep the CSC settings for the background flow intact when disabling the foreground flow. Root-caused-by: Jonathan Marek Signed-off-by: Lucas Stach Signed-off-by: Philipp Zabel Signed-off-by: Sasha Levin --- drivers/gpu/ipu-v3/ipu-dp.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/ipu-v3/ipu-dp.c b/drivers/gpu/ipu-v3/ipu-dp.c index 98686edbcdbb..33de3a1bac49 100644 --- a/drivers/gpu/ipu-v3/ipu-dp.c +++ b/drivers/gpu/ipu-v3/ipu-dp.c @@ -195,7 +195,8 @@ int ipu_dp_setup_channel(struct ipu_dp *dp, ipu_dp_csc_init(flow, flow->foreground.in_cs, flow->out_cs, DP_COM_CONF_CSC_DEF_BOTH); } else { - if (flow->foreground.in_cs == flow->out_cs) + if (flow->foreground.in_cs == IPUV3_COLORSPACE_UNKNOWN || + flow->foreground.in_cs == flow->out_cs) /* * foreground identical to output, apply color * conversion on background @@ -261,6 +262,8 @@ void ipu_dp_disable_channel(struct ipu_dp *dp) struct ipu_dp_priv *priv = flow->priv; u32 reg, csc; + dp->in_cs = IPUV3_COLORSPACE_UNKNOWN; + if (!dp->foreground) return; @@ -268,8 +271,9 @@ void ipu_dp_disable_channel(struct ipu_dp *dp) reg = readl(flow->base + DP_COM_CONF); csc = reg & DP_COM_CONF_CSC_DEF_MASK; - if (csc == DP_COM_CONF_CSC_DEF_FG) - reg &= ~DP_COM_CONF_CSC_DEF_MASK; + reg &= ~DP_COM_CONF_CSC_DEF_MASK; + if (csc == DP_COM_CONF_CSC_DEF_BOTH || csc == DP_COM_CONF_CSC_DEF_BG) + reg |= DP_COM_CONF_CSC_DEF_BG; reg &= ~DP_COM_CONF_FG_EN; writel(reg, flow->base + DP_COM_CONF); @@ -350,6 +354,8 @@ int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base) mutex_init(&priv->mutex); for (i = 0; i < IPUV3_NUM_FLOWS; i++) { + priv->flow[i].background.in_cs = IPUV3_COLORSPACE_UNKNOWN; + priv->flow[i].foreground.in_cs = IPUV3_COLORSPACE_UNKNOWN; priv->flow[i].foreground.foreground = true; priv->flow[i].base = priv->base + ipu_dp_flow_base[i]; priv->flow[i].priv = priv; -- 2.20.1