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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,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 CB81FC47097 for ; Sun, 30 May 2021 15:57:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B456261206 for ; Sun, 30 May 2021 15:57:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229884AbhE3P7G (ORCPT ); Sun, 30 May 2021 11:59:06 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:2185 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229844AbhE3P7E (ORCPT ); Sun, 30 May 2021 11:59:04 -0400 Received: from ironmsg07-lv.qualcomm.com ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 30 May 2021 08:57:26 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg07-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 30 May 2021 08:57:24 -0700 X-QCInternal: smtphost Received: from rajeevny-linux.qualcomm.com ([10.204.66.121]) by ironmsg02-blr.qualcomm.com with ESMTP; 30 May 2021 21:26:31 +0530 Received: by rajeevny-linux.qualcomm.com (Postfix, from userid 2363605) id DD66821481; Sun, 30 May 2021 21:26:29 +0530 (IST) From: Rajeev Nandan To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Cc: Rajeev Nandan , linux-kernel@vger.kernel.org, thierry.reding@gmail.com, sam@ravnborg.org, robdclark@gmail.com, dianders@chromium.org, lyude@redhat.com, jani.nikula@intel.com, robh@kernel.org, laurent.pinchart@ideasonboard.com, a.hajda@samsung.com, daniel.thompson@linaro.org, hoegsberg@chromium.org, abhinavk@codeaurora.org, seanpaul@chromium.org, kalyan_t@codeaurora.org, mkrishn@codeaurora.org Subject: [v5 0/5] drm: Support basic DPCD backlight in panel-simple and add a new panel ATNA33XC20 Date: Sun, 30 May 2021 21:26:07 +0530 Message-Id: <1622390172-31368-1-git-send-email-rajeevny@codeaurora.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org This series adds the support for the eDP panel that needs the backlight controlling over the DP AUX channel using DPCD registers of the panel as per the VESA's standard. This series also adds support for the Samsung eDP AMOLED panel that needs DP AUX to control the backlight, and introduces new delays in the @panel_desc.delay to support this panel. This patch series depends on the following two series: - Doug's series [1], exposed the DP AUX channel to the panel-simple. - Lyude's series [2], introduced new drm helper functions for DPCD backlight. This series is the logical successor to the series [3]. Changes in v1: - Created dpcd backlight helper with very basic functionality, added backlight registration in the ti-sn65dsi86 bridge driver. Changes in v2: - Created a new DisplayPort aux backlight driver and moved the code from drm_dp_aux_backlight.c (v1) to the new driver. Changes in v3: - Fixed module compilation (kernel test bot). Changes in v4: - Added basic DPCD backlight support in panel-simple. - Added support for a new Samsung panel ATNA33XC20 that needs DPCD backlight controlling and has a requirement of delays between enable GPIO and regulator. Changes in v5: Addressed review suggestions from Douglas: - Created a new API drm_panel_dp_aux_backlight() in drm_panel.c - Moved DP AUX backlight functions from panel-simple.c to drm_panel.c - panel-simple probe() calls drm_panel_dp_aux_backlight() to create backlight when the backlight phandle is not specified in panel DT and DP AUX channel is present. - Added check for drm_edp_backlight_supported() before registering. - Removed the @uses_dpcd_backlight flag from panel_desc as this should be auto-detected. - Updated comments/descriptions. [1] https://lore.kernel.org/dri-devel/20210525000159.3384921-1-dianders@chromium.org/ [2] https://lore.kernel.org/dri-devel/20210514181504.565252-1-lyude@redhat.com/ [3] https://lore.kernel.org/dri-devel/1619416756-3533-1-git-send-email-rajeevny@codeaurora.org/ Rajeev Nandan (5): drm/panel: add basic DP AUX backlight support drm/panel-simple: Support DP AUX backlight drm/panel-simple: Support for delays between GPIO & regulator dt-bindings: display: simple: Add Samsung ATNA33XC20 drm/panel-simple: Add Samsung ATNA33XC20 .../bindings/display/panel/panel-simple.yaml | 2 + drivers/gpu/drm/drm_panel.c | 108 +++++++++++++++++++++ drivers/gpu/drm/panel/panel-simple.c | 67 +++++++++++++ include/drm/drm_panel.h | 15 ++- 4 files changed, 188 insertions(+), 4 deletions(-) -- 2.7.4 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=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 53480C47091 for ; Sun, 30 May 2021 15:57:36 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1C5CA611EE for ; Sun, 30 May 2021 15:57:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1C5CA611EE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8513B6E1BE; Sun, 30 May 2021 15:57:27 +0000 (UTC) Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 70FE56E13C; Sun, 30 May 2021 15:57:25 +0000 (UTC) Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 30 May 2021 08:57:25 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 30 May 2021 08:57:24 -0700 X-QCInternal: smtphost Received: from rajeevny-linux.qualcomm.com ([10.204.66.121]) by ironmsg02-blr.qualcomm.com with ESMTP; 30 May 2021 21:26:31 +0530 Received: by rajeevny-linux.qualcomm.com (Postfix, from userid 2363605) id DD66821481; Sun, 30 May 2021 21:26:29 +0530 (IST) From: Rajeev Nandan To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [v5 0/5] drm: Support basic DPCD backlight in panel-simple and add a new panel ATNA33XC20 Date: Sun, 30 May 2021 21:26:07 +0530 Message-Id: <1622390172-31368-1-git-send-email-rajeevny@codeaurora.org> X-Mailer: git-send-email 2.7.4 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: daniel.thompson@linaro.org, Rajeev Nandan , mkrishn@codeaurora.org, jani.nikula@intel.com, linux-kernel@vger.kernel.org, abhinavk@codeaurora.org, dianders@chromium.org, a.hajda@samsung.com, thierry.reding@gmail.com, seanpaul@chromium.org, laurent.pinchart@ideasonboard.com, kalyan_t@codeaurora.org, hoegsberg@chromium.org, sam@ravnborg.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This series adds the support for the eDP panel that needs the backlight controlling over the DP AUX channel using DPCD registers of the panel as per the VESA's standard. This series also adds support for the Samsung eDP AMOLED panel that needs DP AUX to control the backlight, and introduces new delays in the @panel_desc.delay to support this panel. This patch series depends on the following two series: - Doug's series [1], exposed the DP AUX channel to the panel-simple. - Lyude's series [2], introduced new drm helper functions for DPCD backlight. This series is the logical successor to the series [3]. Changes in v1: - Created dpcd backlight helper with very basic functionality, added backlight registration in the ti-sn65dsi86 bridge driver. Changes in v2: - Created a new DisplayPort aux backlight driver and moved the code from drm_dp_aux_backlight.c (v1) to the new driver. Changes in v3: - Fixed module compilation (kernel test bot). Changes in v4: - Added basic DPCD backlight support in panel-simple. - Added support for a new Samsung panel ATNA33XC20 that needs DPCD backlight controlling and has a requirement of delays between enable GPIO and regulator. Changes in v5: Addressed review suggestions from Douglas: - Created a new API drm_panel_dp_aux_backlight() in drm_panel.c - Moved DP AUX backlight functions from panel-simple.c to drm_panel.c - panel-simple probe() calls drm_panel_dp_aux_backlight() to create backlight when the backlight phandle is not specified in panel DT and DP AUX channel is present. - Added check for drm_edp_backlight_supported() before registering. - Removed the @uses_dpcd_backlight flag from panel_desc as this should be auto-detected. - Updated comments/descriptions. [1] https://lore.kernel.org/dri-devel/20210525000159.3384921-1-dianders@chromium.org/ [2] https://lore.kernel.org/dri-devel/20210514181504.565252-1-lyude@redhat.com/ [3] https://lore.kernel.org/dri-devel/1619416756-3533-1-git-send-email-rajeevny@codeaurora.org/ Rajeev Nandan (5): drm/panel: add basic DP AUX backlight support drm/panel-simple: Support DP AUX backlight drm/panel-simple: Support for delays between GPIO & regulator dt-bindings: display: simple: Add Samsung ATNA33XC20 drm/panel-simple: Add Samsung ATNA33XC20 .../bindings/display/panel/panel-simple.yaml | 2 + drivers/gpu/drm/drm_panel.c | 108 +++++++++++++++++++++ drivers/gpu/drm/panel/panel-simple.c | 67 +++++++++++++ include/drm/drm_panel.h | 15 ++- 4 files changed, 188 insertions(+), 4 deletions(-) -- 2.7.4