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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 03248C48BCF for ; Mon, 7 Jun 2021 17:06:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DAA0161078 for ; Mon, 7 Jun 2021 17:06:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231282AbhFGRIX (ORCPT ); Mon, 7 Jun 2021 13:08:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230525AbhFGRIW (ORCPT ); Mon, 7 Jun 2021 13:08:22 -0400 Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC217C061280 for ; Mon, 7 Jun 2021 10:06:26 -0700 (PDT) Received: by mail-pf1-x431.google.com with SMTP id c12so13593605pfl.3 for ; Mon, 07 Jun 2021 10:06:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=QFddLOHKMkDWCo/3CJ6wD0VeACMC/xRkHRaz1DXreL4=; b=VUYMkHkOdCN0d9Kzmy6/vVCz4a+LAxY0BdwuAOSzLNJqvbgmWJqXOQLjZPftDM/hFA S4sKnmI3ocXTQZ7wYLwrOSH9jg491VW9QKj9matJ/vZQJfuwtnvtxYsexmODKmy1v7cn m9RJtgRs3BMDFegVPavrzKA20e2ng0ZkRXfyk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=QFddLOHKMkDWCo/3CJ6wD0VeACMC/xRkHRaz1DXreL4=; b=hj/9dhywFZXp1V6HZn6I7H/l+wHqJJGP3Oi8nX/LsjIHOXCiDHVcK2p3lgttGC2Bqt +yl0g28OrNbZ7gIdaXMRsynoYwT8E3KAVFJbRbArN6/MSHj6YLhahBvYGekIA1IPpbi8 JexgrTMVEl7X3BiCyPP3u4XmI/ridQ9LA0/CS3xLbIhc//OnQgTsy+c8LJM03XtjgPrU jbp+tUe+ZT6nqD8veVgmXcsqIPobbJmVRIN+tVpAThUdJ1aNLUACmio1HDrza7WoKY8i GIPjtLeC9EtyHD7tLDFws/nxZDN42Tau0uDj7EK/uEr4RJd0vnQ2j7+HSTKIKyTIYXhA dBhA== X-Gm-Message-State: AOAM5331bJw0n4FQiEciDaskQVjtQm/L+sVfhtYmLg2oschOAjSB6PWd 9u4bMESKGJpcOkxXYUFC870WNA== X-Google-Smtp-Source: ABdhPJzGbsmGgNdYrdMCYElyKRxtwRKUm08v3yvz8uRp/WDjLVgv0nkTYzOdWrjU9NDZEuLzFn7CEw== X-Received: by 2002:a05:6a00:882:b029:24b:afda:acfa with SMTP id q2-20020a056a000882b029024bafdaacfamr17889560pfj.72.1623085586388; Mon, 07 Jun 2021 10:06:26 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:201:f656:ffce:6348:a42a]) by smtp.gmail.com with ESMTPSA id fs24sm12897639pjb.6.2021.06.07.10.06.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Jun 2021 10:06:25 -0700 (PDT) From: Douglas Anderson To: Andrzej Hajda , Neil Armstrong , Laurent Pinchart , Jonas Karlman , Sam Ravnborg Cc: Linus W , robdclark@chromium.org, Maarten Lankhorst , Stanislav Lisovskiy , Steev Klimaszewski , linux-arm-msm@vger.kernel.org, Bjorn Andersson , Thierry Reding , Lyude Paul , dri-devel@lists.freedesktop.org, Stephen Boyd , Douglas Anderson , Daniel Vetter , David Airlie , Jernej Skrabec , Robert Foss , linux-kernel@vger.kernel.org Subject: [PATCH v9 08/11] drm/bridge: ti-sn65dsi86: Add support for the DP AUX bus Date: Mon, 7 Jun 2021 10:05:52 -0700 Message-Id: <20210607100234.v9.8.Ib5fe0638da85800141ce141bb8e441c5f25438d4@changeid> X-Mailer: git-send-email 2.32.0.rc1.229.g3e70b5a671-goog In-Reply-To: <20210607170555.4006050-1-dianders@chromium.org> References: <20210607170555.4006050-1-dianders@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org We want to provide our panel with access to the DP AUX channel. The way to do this is to let our panel be a child of ours using the fancy new DP AUX bus support. Signed-off-by: Douglas Anderson Acked-by: Linus Walleij Reviewed-by: Lyude Paul --- Changes in v9: - Rebased atop v9 ("Promote the AUX channel") patch. Changes in v7: - Patch to support for DP AUX bus on ti-sn65dsi86 new for v7. drivers/gpu/drm/bridge/Kconfig | 1 + drivers/gpu/drm/bridge/ti-sn65dsi86.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index c96e4b38d1d3..5e1e28d4520f 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -293,6 +293,7 @@ config DRM_TI_SN65DSI86 select DRM_PANEL select DRM_MIPI_DSI select AUXILIARY_BUS + select DRM_DP_AUX_BUS help Texas Instruments SN65DSI86 DSI to eDP Bridge driver diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index 8e61005cf4ad..32bd35c98d95 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -1426,12 +1427,17 @@ static int ti_sn_aux_probe(struct auxiliary_device *adev, const struct auxiliary_device_id *id) { struct ti_sn65dsi86 *pdata = dev_get_drvdata(adev->dev.parent); + int ret; pdata->aux.name = "ti-sn65dsi86-aux"; pdata->aux.dev = &adev->dev; pdata->aux.transfer = ti_sn_aux_transfer; drm_dp_aux_init(&pdata->aux); + ret = devm_of_dp_aux_populate_ep_devices(&pdata->aux); + if (ret) + return ret; + /* * The eDP to MIPI bridge parts don't work until the AUX channel is * setup so we don't add it in the main driver probe, we add it now. -- 2.32.0.rc1.229.g3e70b5a671-goog