From patchwork Thu Sep 9 21:00:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 508449 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=-19.1 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, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 D9CDEC433FE for ; Thu, 9 Sep 2021 21:01:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B927661186 for ; Thu, 9 Sep 2021 21:01:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347271AbhIIVCz (ORCPT ); Thu, 9 Sep 2021 17:02:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50084 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346899AbhIIVCq (ORCPT ); Thu, 9 Sep 2021 17:02:46 -0400 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A4064C061574 for ; Thu, 9 Sep 2021 14:01:36 -0700 (PDT) Received: by mail-pj1-x1033.google.com with SMTP id rj12-20020a17090b3e8c00b001991428ded8so1798555pjb.1 for ; Thu, 09 Sep 2021 14:01:36 -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=ieiNMV6UIJCi77mG7wut3Zaj1d1TYcRPyMP0eycCOro=; b=h1y9rbpmgKp/E4rfKjbeRRb93Gf5fdjNNA3vAs7cN4F1+iD49vQsnYVCmm3+dAgZ3B ioA6oAJbqt89FP8kpBz6otLk3oiUHwOTgqgUipLUgLS7isQlCHY0Typ5C28dpyFQirCN B2PiaWmzv0Je2f2+9xom3nUgZToio9mkKo9+M= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ieiNMV6UIJCi77mG7wut3Zaj1d1TYcRPyMP0eycCOro=; b=1bLdG8O9Ao8x+F26jeYX8JRJD2Aq+4gMS6ABiOM0C3LPWFH3whUl9iwHIMYMg73pvZ 4vhkeySu2RCxJiJc+1LVmUjIF+ciLkmVloMFZJo/xSDfPV6/nur/AhS6RMJiQn/MqdNp cK+8vdZVgpnGk+EdyRgdcvvZi2T+V2dB+MV9cyGUDfEpg4+8C5JTbHxiI7NO8Vs2VO6v t4zy9y04mDjS4Zeu3ZKEFA3trcAdG8vXb5m67OlanJEOhLyW9QRi6f1Vx7bJg0QX9du8 vmNlYSce90iGtPNFwM+qxFo45Pp+mQibMioF9cPFbLsX6f7/IcT+NLNsp0anpXSjgv3p f0qQ== X-Gm-Message-State: AOAM531Gk+QQmXHtGEjM08p0u7r1aUziP7g05CNWK9C1ShSRfE8fkcEn Ic5UV37tIY9/Gt7rA4yyyv1vqg== X-Google-Smtp-Source: ABdhPJyRCyXh3ef1wzfyrN3BExP8xS5rlJvGANGFUSYcO0e6p4C+miGIKkz9QwVLGGSoo0KmPvS+pw== X-Received: by 2002:a17:90b:4a43:: with SMTP id lb3mr5663901pjb.145.1631221295549; Thu, 09 Sep 2021 14:01:35 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:202:201:8da3:b0fb:4261:2c10]) by smtp.gmail.com with ESMTPSA id l143sm177069pfd.60.2021.09.09.14.01.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Sep 2021 14:01:35 -0700 (PDT) From: Douglas Anderson To: Thierry Reding , Rob Herring , Sam Ravnborg Cc: devicetree@vger.kernel.org, Maxime Ripard , Thomas Zimmermann , Linus W , Daniel Vetter , linux-arm-msm@vger.kernel.org, Steev Klimaszewski , Maarten Lankhorst , Bjorn Andersson , David Airlie , dri-devel@lists.freedesktop.org, Douglas Anderson , linux-kernel@vger.kernel.org Subject: [PATCH v4 07/15] drm/panel-edp: Split eDP panels out of panel-simple Date: Thu, 9 Sep 2021 14:00:23 -0700 Message-Id: <20210909135838.v4.7.I0a2f75bb822d17ce06f5b147734764eeb0c3e3df@changeid> X-Mailer: git-send-email 2.33.0.309.g3052b89438-goog In-Reply-To: <20210909210032.465570-1-dianders@chromium.org> References: <20210909210032.465570-1-dianders@chromium.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The panel-simple driver handles way too much. Let's start trying to get a handle on it by splitting out the eDP panels. This patch does this: 1. Start by copying simple-panel verbatim over to a new driver, simple-panel-edp. 2. Rename "panel_simple" to "panel_edp" in the new driver. 3. Keep only panels marked with `DRM_MODE_CONNECTOR_eDP` in the new driver. Remove those panels from the old driver. 4. Remove all recent "DP AUX bus" stuff from the old driver. The DP AUX bus is only possible on DP panels. 5. Remove all DSI / MIPI related functions from the new driver. 6. Remove bus_format / bus_flags from eDP driver. These things don't seem to make any sense for eDP panels so let's stop filling in made up stuff. In the end we end up with a bunch of duplicated code for now. Future patches will try to address _some_ of this duplicated code though some of it will be unavoidable. NOTE: This may not actually move all eDP panels over to the new driver since not all panels were properly marked with `DRM_MODE_CONNECTOR_eDP`. A future patch will attempt to move wayward panels I could identify but even so there may be some missed. Suggested-by: Sam Ravnborg Signed-off-by: Douglas Anderson Acked-by: Sam Ravnborg --- Changes in v4: - PANEL_SIMPLE_EDP => PANEL_EDP - Remove "non-eDP" in panel-simple description. - panel-simple-edp => panel-edp Changes in v3: - Split eDP panels patch new for v3. drivers/gpu/drm/panel/Kconfig | 16 +- drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-edp.c | 1298 ++++++++++++++++++++++++++ drivers/gpu/drm/panel/panel-simple.c | 573 +----------- 4 files changed, 1322 insertions(+), 566 deletions(-) create mode 100644 drivers/gpu/drm/panel/panel-edp.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 0b3784941312..369cb76512fe 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -77,14 +77,26 @@ config DRM_PANEL_LVDS backlight handling if the panel is attached to a backlight controller. config DRM_PANEL_SIMPLE - tristate "support for simple panels" + tristate "support for simple panels (other than eDP ones)" + depends on OF + depends on BACKLIGHT_CLASS_DEVICE + depends on PM + select VIDEOMODE_HELPERS + help + DRM panel driver for dumb non-eDP panels that need at most a regulator + and a GPIO to be powered up. Optionally a backlight can be attached so + that it can be automatically turned off when the panel goes into a + low power state. + +config DRM_PANEL_EDP + tristate "support for simple Embedded DisplayPort panels" depends on OF depends on BACKLIGHT_CLASS_DEVICE depends on PM select VIDEOMODE_HELPERS select DRM_DP_AUX_BUS help - DRM panel driver for dumb panels that need at most a regulator and + DRM panel driver for dumb eDP panels that need at most a regulator and a GPIO to be powered up. Optionally a backlight can be attached so that it can be automatically turned off when the panel goes into a low power state. diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 60c0149fc54a..6e30640b9099 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_DRM_PANEL_BOE_TV101WUM_NL6) += panel-boe-tv101wum-nl6.o obj-$(CONFIG_DRM_PANEL_DSI_CM) += panel-dsi-cm.o obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o +obj-$(CONFIG_DRM_PANEL_EDP) += panel-edp.o obj-$(CONFIG_DRM_PANEL_ELIDA_KD35T133) += panel-elida-kd35t133.o obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c new file mode 100644 index 000000000000..a3f609edface --- /dev/null +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -0,0 +1,1298 @@ +/* + * Copyright (C) 2013, NVIDIA Corporation. All rights reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sub license, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include