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,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,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 9D8B3C282C3 for ; Thu, 24 Jan 2019 18:29:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5888E218A6 for ; Thu, 24 Jan 2019 18:29:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="l2cyDBj7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726979AbfAXS3L (ORCPT ); Thu, 24 Jan 2019 13:29:11 -0500 Received: from mail-pl1-f193.google.com ([209.85.214.193]:35481 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725924AbfAXS3K (ORCPT ); Thu, 24 Jan 2019 13:29:10 -0500 Received: by mail-pl1-f193.google.com with SMTP id p8so3279367plo.2 for ; Thu, 24 Jan 2019 10:29:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=PeINbjerEmtPSiwCUVmX1VkkDU6rMM6JARYI9+cTqGA=; b=l2cyDBj7KU7Gd7MY8luWpR0rG2ft6Eec7qqszUr4V1+DUR+AydYnDnaZfIcfcfZPsg /cyCeeUl6o2pe1AFRCHMZQ8wrrP9B33H5aYQXJrJr8PHwaYi4sZQp8FNDI8tuVHAvaRq nyJ4eZ7aFYZo1SZwUGNGwknAw3Ze8GWoNHIo0= 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=PeINbjerEmtPSiwCUVmX1VkkDU6rMM6JARYI9+cTqGA=; b=gTzE7irmctcQyK78qqHeBI6+UcUP8LIcWkmxfSwTQCUXG68TvGubuLRdQ5a4YqQbkP pG118TCVIkXhiwL94NFQv5e6jTDjth8ZkNHlgd+rGy/nORnNc/umpywMhOjfI1nivvg0 qnRt//rHkEqLfG9c8TW3Ec1h2rJy2Q6XreFOleJua5PcezlM4UZVvKI9YswWGmhVMmVv FQs08ibxDnd4Zknv0E24hCxllZ6fPoQiAoKg+2AdIDhItQ9dnKRBNol7kj8JgIzo+/Vv 9iM5gGRXvvEEqxNKrvSr9rpL9mWhZ/SapO2M52HYz2JDmJuDFwu86mYbyVH2adycOQ9P MH9Q== X-Gm-Message-State: AJcUukeZXhK9Pg7ok3W3m5KmEV1URcRp4c8KitYwch5vqCAu3VC4vn40 kNGgkVR+tMQC0SF5rS/GBgShfg== X-Google-Smtp-Source: ALg8bN5cXHEMijGNz0A1A5Kjb9K3lcCRQR/K717SjVeI2DwZWvbS4wut9mvNv/PBeypnWYK1na59xQ== X-Received: by 2002:a17:902:7614:: with SMTP id k20mr7718447pll.285.1548354549272; Thu, 24 Jan 2019 10:29:09 -0800 (PST) Received: from localhost.localdomain ([115.97.179.75]) by smtp.gmail.com with ESMTPSA id d25sm31803995pfe.40.2019.01.24.10.29.05 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 24 Jan 2019 10:29:08 -0800 (PST) From: Jagan Teki To: Thierry Reding , David Airlie , Daniel Vetter , Sam Ravnborg Cc: Michael Trimarchi , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-amarula@amarulasolutions.com, Jagan Teki Subject: [PATCH v8 2/2] drm/panel: Add Sitronix ST7701 panel driver Date: Thu, 24 Jan 2019 23:58:44 +0530 Message-Id: <20190124182844.28961-2-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20190124182844.28961-1-jagan@amarulasolutions.com> References: <20190124182844.28961-1-jagan@amarulasolutions.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ST7701 designed for small and medium sizes of TFT LCD display, is capable of supporting up to 480RGBX864 in resolution. It provides several system interfaces like MIPI/RGB/SPI. Currently added support for Techstar TS8550B which is ST7701 based 480x854, 2-lane MIPI DSI LCD panel. Driver now registering mipi_dsi device, but indeed it can extendable for RGB if any requirement trigger in future. Signed-off-by: Jagan Teki --- Changes for v8: - use DRM_DEV_ERROR instead of dev_err - use devm_of_find_backlight() instead of of_parse_phandle() - remove unneeded 'num_supplies' from struct st7701 - add proper comments about panel sepecific sleep mode delay as per st7701 datasheet - update msleep delay values in .prepare as per datasheet and as per discussion in v7, thanks to 'Sam Ravnborg' - update msleep delay values in .unprepare as per datasheet and as per discussion in v7, thanks to 'Sam Ravnborg' - add proper comments on msleep delay values as per st7701 datasheet - use MIPI_DCS_ENTER_SLEEP_MODE in .unprepare - drop unneeded gpio set in .prepare and .unprepare as per panel-simple - remove unneeded include files - rebase on master Changes for v7: - rebase on master Changes for v6: - use sleep delay value as per datasheet - add panel_sleep_delay variable for panel specific delay - use command sequnce display on and off instead panel functions - add proper comments on the delays - remove delays from command switch - move mode type on struct display mode - drop refresh rate value, let drm compute Changes for v5: - found the chip from vendor, so added new panel driver - here is v4: https://patchwork.kernel.org/patch/10680335/ MAINTAINERS | 6 + drivers/gpu/drm/panel/Kconfig | 10 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-sitronix-st7701.c | 429 ++++++++++++++++++ 4 files changed, 446 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-sitronix-st7701.c diff --git a/MAINTAINERS b/MAINTAINERS index 5c8591eb5840..875bba40157b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4937,6 +4937,12 @@ S: Orphan / Obsolete F: drivers/gpu/drm/sis/ F: include/uapi/drm/sis_drm.h +DRM DRIVER FOR SITRONIX ST7701 PANELS +M: Jagan Teki +S: Maintained +F: drivers/gpu/drm/panel/panel-sitronix-st7701.c +F: Documentation/devicetree/bindings/display/panel/sitronix,st7701.txt + DRM DRIVER FOR SITRONIX ST7586 PANELS M: David Lechner S: Maintained diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 5304db7b7b55..a65b3a065598 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -214,6 +214,16 @@ config DRM_PANEL_SHARP_LS043T1LE01 Say Y here if you want to enable support for Sharp LS043T1LE01 qHD (540x960) DSI panel as found on the Qualcomm APQ8074 Dragonboard +config DRM_PANEL_SITRONIX_ST7701 + tristate "Sitronix ST7701 panel driver" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y here if you want to enable support for the Sitronix + ST7701 controller for 480X864 LCD panels with MIPI/RGB/SPI + system interfaces. + config DRM_PANEL_SITRONIX_ST7789V tristate "Sitronix ST7789V panel" depends on OF && SPI diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index c88dacf9d439..0ec4c41915dd 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -22,6 +22,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o +obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c new file mode 100644 index 000000000000..499dd8a34a6d --- /dev/null +++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c @@ -0,0 +1,429 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019, Amarula Solutions. + * Author: Jagan Teki + */ + +#include +#include +#include +#include + +#include +#include + +#include +#include +#include + +#include