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Thu, 18 Dec 2014 00:08:07 -0700 From: Liu Ying To: Subject: [PATCH RFC v2 09/14] drm: panel: Add support for Himax HX8369A MIPI DSI panel Date: Thu, 18 Dec 2014 15:11:31 +0800 Message-ID: <1418886696-11636-10-git-send-email-Ying.Liu@freescale.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1418886696-11636-1-git-send-email-Ying.Liu@freescale.com> References: <1418886696-11636-1-git-send-email-Ying.Liu@freescale.com> X-EOPAttributedMessage: 0 Received-SPF: Fail (protection.outlook.com: domain of freescale.com does not designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net; Authentication-Results: spf=fail (sender IP is 192.88.168.50) smtp.mailfrom=Ying.Liu@freescale.com; X-Forefront-Antispam-Report: CIP:192.88.168.50; CTRY:US; IPV:NLI; EFV:NLI; SFV:NSPM; SFS:(10019020)(979002)(6009001)(339900001)(199003)(189002)(31966008)(97736003)(110136001)(105606002)(89996001)(104016003)(62966003)(86362001)(64706001)(99396003)(47776003)(2950100001)(20776003)(48376002)(50466002)(68736005)(120916001)(21056001)(77156002)(50986999)(77096005)(87936001)(19580395003)(107046002)(50226001)(2351001)(46102003)(4396001)(92566001)(84676001)(106466001)(76176999)(19580405001)(36756003)(85426001)(6806004)(575784001)(229853001)(2004002)(217873001)(969003)(989001)(999001)(1009001)(1019001); DIR:OUT; SFP:1102; SCL:1; SRVR:CY1PR0301MB0633; H:tx30smr01.am.freescale.net; FPR:; SPF:Fail; MLV:ovrnspm; PTR:InfoDomainNonexistent; A:1; MX:1; LANG:en; MIME-Version: 1.0 X-Microsoft-Antispam: UriScan:; X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:;SRVR:CY1PR0301MB0633; X-Exchange-Antispam-Report-Test: UriScan:; X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(601004); SRVR:CY1PR0301MB0633; X-Forefront-PRVS: 042957ACD7 X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:; SRVR:CY1PR0301MB0633; X-OriginatorOrg: freescale.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141217_230827_509590_C2F90DCF X-CRM114-Status: GOOD ( 17.64 ) X-Spam-Score: -0.0 (/) Cc: devicetree@vger.kernel.org, linux@arm.linux.org.uk, kernel@pengutronix.de, airlied@linux.ie, linux-kernel@vger.kernel.org, thierry.reding@gmail.com, p.zabel@pengutronix.de, mturquette@linaro.org, shawn.guo@linaro.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds support for Himax HX8369A MIPI DSI panel. Signed-off-by: Liu Ying --- v1->v2: * Address almost all comments from Thierry Reding. * Remove several DT properties as they can be implied by the compatible string. * Add the HIMAX/himax prefixes to the driver's Kconfig name and driver name. * Move the driver's Makefile entry place to sort the entries alphabetically. * Reuse several standard DCS functions instead of inventing wheels. * Move the panel resetting and power logics to the driver probe/remove stages. This may simplify panel prepare/unprepare hooks. The power consumption should not change a lot at DPMS since the panel enters sleep mode at that time. * Add the module author. * Other minor changes, such as coding style issues. .../devicetree/bindings/panel/himax,hx8369a.txt | 41 ++ drivers/gpu/drm/panel/Kconfig | 5 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-himax-hx8369a.c | 573 +++++++++++++++++++++ 4 files changed, 620 insertions(+) create mode 100644 Documentation/devicetree/bindings/panel/himax,hx8369a.txt create mode 100644 drivers/gpu/drm/panel/panel-himax-hx8369a.c diff --git a/Documentation/devicetree/bindings/panel/himax,hx8369a.txt b/Documentation/devicetree/bindings/panel/himax,hx8369a.txt new file mode 100644 index 0000000..36a2f11 --- /dev/null +++ b/Documentation/devicetree/bindings/panel/himax,hx8369a.txt @@ -0,0 +1,41 @@ +Himax HX8369A WVGA 16.7M color TFT single chip driver with internal GRAM + +Himax HX8369A is a WVGA resolution driving controller. +It is designed to provide a single chip solution that combines a source +driver and power supply circuits to drive a TFT dot matrix LCD with +480RGBx864 dots at the maximum. + +The HX8369A supports several interface modes, including MPU MIPI DBI Type +A/B mode, MIPI DPI/DBI Type C mode, MIPI DSI video mode, MIPI DSI command +mode and MDDI mode. The interface mode is selected by the external hardware +pins BS[3:0]. + +Currently, only the MIPI DSI video mode is supported. + +Required properties: + - compatible: should be a panel's compatible string + - reg: the virtual channel number of a DSI peripheral as described in [1] + - reset-gpios: a GPIO spec for the reset pin + +Optional properties: + - vdd1-supply: I/O and interface power supply + - vdd2-supply: analog power supply + - vdd3-supply: logic power supply + - dsi-vcc-supply: DSI and MDDI power supply + - vpp-supply: OTP programming voltage + - bs0-gpios: a GPIO spec for the pin BS0 + - bs1-gpios: a GPIO spec for the pin BS1 + - bs2-gpios: a GPIO spec for the pin BS2 + - bs3-gpios: a GPIO spec for the pin BS3 + +[1] Documentation/devicetree/bindings/mipi/dsi/mipi-dsi-bus.txt + +Example: + panel { + compatible = "truly,tft480800-16-e-dsi"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_mipi_panel>; + reset-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>; + bs2-gpios = <&gpio6 14 GPIO_ACTIVE_HIGH>; + }; diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 024e98e..81b0bf0 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -16,6 +16,11 @@ config DRM_PANEL_SIMPLE that it can be automatically turned off when the panel goes into a low power state. +config DRM_PANEL_HIMAX_HX8369A + tristate "Himax HX8369A panel" + depends on OF + select DRM_MIPI_DSI + config DRM_PANEL_LD9040 tristate "LD9040 RGB/SPI panel" depends on OF && SPI diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 4b2a043..d5dbe06 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -1,4 +1,5 @@ obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o +obj-$(CONFIG_DRM_PANEL_HIMAX_HX8369A) += panel-himax-hx8369a.o obj-$(CONFIG_DRM_PANEL_LD9040) += panel-ld9040.o obj-$(CONFIG_DRM_PANEL_S6E8AA0) += panel-s6e8aa0.o obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o diff --git a/drivers/gpu/drm/panel/panel-himax-hx8369a.c b/drivers/gpu/drm/panel/panel-himax-hx8369a.c new file mode 100644 index 0000000..ae783f2 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-himax-hx8369a.c @@ -0,0 +1,573 @@ +/* + * Himax HX8369A panel driver. + * + * Copyright (C) 2011-2014 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This driver is based on Samsung s6e8aa0 panel driver. + */ + +#include +#include +#include + +#include +#include + +#include