From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964874AbdADH2V (ORCPT ); Wed, 4 Jan 2017 02:28:21 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:50660 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934593AbdADH2R (ORCPT ); Wed, 4 Jan 2017 02:28:17 -0500 MIME-version: 1.0 Content-transfer-encoding: 8BIT Content-type: text/plain; charset=UTF-8 X-AuditID: b6c32a36-f790e6d000003178-ed-586ca1ad4ab9 Subject: Re: [PATCH v4 2/3] drm/panel: Add support for S6E3HA2 panel driver on TM2 board To: Hoegeun Kwon , robh@kernel.org, thierry.reding@gmail.com, airlied@linux.ie, kgene@kernel.org, krzk@kernel.org, inki.dae@samsung.com Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-samsung-soc@vger.kernel.org, a.hajda@samsung.com, jh80.chung@samsung.com, Donghwa Lee , Hyungwon Hwang From: Chanwoo Choi Organization: Samsung Electronics Message-id: Date: Wed, 04 Jan 2017 16:18:04 +0900 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 In-reply-to: <1483513115-3068-3-git-send-email-hoegeun.kwon@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrCJsWRmVeSWpSXmKPExsWy7bCmvu7ahTkRBj+aBSxurTvHatF77iST xfwjQNb183YWV76+Z7N4v7yLzWLpjD5Wi0n3J7BY3PjVxmrR//g1s8X58xvYLS7vmsNmMeP8 PiaL/3t2sFv83DWPxYHfY+esu+wem1Z1snls//aA1eN+93Emj74tqxg9Pm+SC2CLSrXJSE1M SS1SSM1Lzk/JzEu3VfIOjneONzUzMNQ1tLQwV1LIS8xNtVVy8QnQdcvMATpZSaEsMacUKBSQ WFyspG9nU5RfWpKqkJFfXGKrFG1oaKRnaGCuZ2RkpGdiHGtlZApUkpCa0XzrNlPB30+MFbdP P2JuYNx9iLGLkZNDQsBE4uz3xewQtpjEhXvr2boYuTiEBHYwSny/fJYZJCEk0M4k0diTAdNw u+UHM0TRckaJpUf/g3XzCghK/Jh8jwXEZhbQlNi6ez07RNE9Rokz666ygiSEBaIkJvybyAqS EBFYyijx5G4T2ChmgUYmiU/3L4IdxSagJbH/xQ02EJtfQFHi6o/HjBAr7CQOT74PZrMIqEqc 3tsNNImDQ1QgQqL/jDpImFPAQ+Lc2slMEFfIS2xe8xZsvoTAR3aJTbO3sYDUSwjISmw6wAzx jovEp50b2SBsYYlXx7dAw0JaYtW/W0wQvZMZJbrW/oUa1MMo0bjmKFSHscT9B/eYIbbxSbz7 2sMKsYBXoqNNCKLEQ2LOw13QwHaU6Jt5lhUSLDcZJQ71HWefwKgwCyn4ZiEF3ywkTyxgZF7F KJZaUJybnlpsWGCkV5yYW1yal66XnJ+7iRGcgrXMdjAuOudziFGAg1GJh3fFouwIIdbEsuLK 3EOMEhzMSiK8S+fmRAjxpiRWVqUW5ccXleakFh9iNAWG5URmKdHkfGB+yCuJNzQxMzQxMjE0 NDcyMFIS513caB0hJJCeWJKanZpakFoE08fEwSnVwJgfNi3dJrtkiWLA6qxNqxfMqkie9jPI mCf1rfkFnyqR9CJrTzWVHWKlHR90PWOWLa/3Yw5xyd2wesnT5endZaqc3ydrJqp2hRhfzVM5 vHkR88QEpmzFGYInNszbPMPP6HP31EPXfp0yn+Sz87j6tIsXwnl2Kvz9InqR4ZL5l5kXVSZe XHndukiJpTgj0VCLuag4EQA/yHTj1wMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrIIsWRmVeSWpSXmKPExsVy+t9jAd01C3MiDLqmaVrcWneO1aL33Ekm i/lHgKzr5+0srnx9z2bxfnkXm8XSGX2sFpPuT2CxuPGrjdWi//FrZovz5zewW1zeNYfNYsb5 fUwW//fsYLf4uWseiwO/x85Zd9k9Nq3qZPPY/u0Bq8f97uNMHn1bVjF6fN4kF8AW5WaTkZqY klqkkJqXnJ+SmZduqxQa4qZroaSQl5ibaqsUoesbEqSkUJaYUwrkGRmgAQfnAPdgJX27BLeM 5lu3mQr+fmKsuH36EXMD4+5DjF2MnBwSAiYSt1t+MEPYYhIX7q1n62Lk4hASWMoocfL9JTaQ BK+AoMSPyfdYQGxmAXWJSfMWMUMUPWCUWPHmDdgkYYEoiRunj4AlREC6n2w+AlV1k1Hiz7MD UO2NTBLffkqC2GwCWhL7X9wAW8EvoChx9cdjRoh1dhKHJ98Hs1kEVCVO7+1mBbFFBSIkbj3s AJvDKeAhcW7tZCaImfISm9e8ZZ7AKDgLybWzkFw7C0nZAkbmVYwSqQXJBcVJ6bmGeanlesWJ ucWleel6yfm5mxjB0f1MagfjwV3uhxgFOBiVeHhXWORECLEmlhVX5h5ilOBgVhLhXToXKMSb klhZlVqUH19UmpNafIjRFOjgicxSosn5wMSTVxJvaGJuYm5sYGFuaWlipCTO2zj7WbiQQHpi SWp2ampBahFMHxMHp1QDY5tg5Lp1Z5fHH1VYpMTZe/v7wZycDy52P2QthYzuHltjncXNe6ev 0cD8FOebRSe6N/Z9msqb1Hto88anHbqtPGfuX1StfTuv5d2TMJ2/M24EfVVk9L9mtmxflm15 wsIg/pbXccX7q+rnX+fISgkrYw3R9FxYcXPtoR2dCgc5vl7T19/isEylQImlOCPRUIu5qDgR ADSO+hgEAwAA X-MTR: 20000000000000000@CPGS X-CMS-MailID: 20170104071804epcas1p4a4e144b026961119b48e67ce58cbcbc0 X-Msg-Generator: CA X-Sender-IP: 203.254.230.26 X-Local-Sender: =?UTF-8?B?7LWc7LCs7JqwG1RpemVuIFBsYXRmb3JtIExhYihTL1fshLw=?= =?UTF-8?B?7YSwKRvsgrzshLHsoITsnpAbUzUo7LGF7J6EKS9DaGFuZ2UgQWdlbnQ=?= X-Global-Sender: =?UTF-8?B?Q2hhbndvbyBDaG9pG1RpemVuIFBsYXRmb3JtIExhYi4bU2Ft?= =?UTF-8?B?c3VuZyBFbGVjdHJvbmljcxtTNS9TZW5pb3IgRW5naW5lZXI=?= X-Sender-Code: =?UTF-8?B?QzEwG1NUQUYbQzEwVjgxMTE=?= CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-HopCount: 7 X-CMS-RootMailID: 20170104065900epcas5p2ea5eef389301b71f8f57d6166c233014 X-RootMTR: 20170104065900epcas5p2ea5eef389301b71f8f57d6166c233014 References: <1483513115-3068-1-git-send-email-hoegeun.kwon@samsung.com> <1483513115-3068-3-git-send-email-hoegeun.kwon@samsung.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Hoegeun, I tested this patch on Exynos5433-TM2 board. It is well working Tested-by: Chanwoo Choi Regards, Chanwoo Choi On 2017년 01월 04일 15:58, Hoegeun Kwon wrote: > This patch add support for MIPI-DSI based S6E3HA2 AMOLED panel > driver. This panel has 1440x2560 resolution in 5.7-inch physical > panel in the TM2 device. > > Signed-off-by: Donghwa Lee > Signed-off-by: Hyungwon Hwang > Signed-off-by: Hoegeun Kwon > --- > .../bindings/display/panel/samsung,s6e3ha2.txt | 40 ++ > drivers/gpu/drm/panel/Kconfig | 6 + > drivers/gpu/drm/panel/Makefile | 1 + > drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 741 +++++++++++++++++++++ > 4 files changed, 788 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > create mode 100644 drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > > diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > new file mode 100644 > index 0000000..6879f51 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e3ha2.txt > @@ -0,0 +1,40 @@ > +Samsung S6E3HA2 5.7" 1440x2560 AMOLED panel > + > +Required properties: > + - compatible: "samsung,s6e3ha2" > + - reg: the virtual channel number of a DSI peripheral > + - vdd3-supply: I/O voltage supply > + - vci-supply: voltage supply for analog circuits > + - reset-gpios: a GPIO spec for the reset pin (active low) > + - enable-gpios: a GPIO spec for the panel enable pin (active high) > + - te-gpios: a GPIO spec for the tearing effect synchronization signal > + gpio pin (active high) > + > +The device node can contain one 'port' child node with one child > +'endpoint' node, according to the bindings defined in [1]. This > +node should describe panel's video bus. > + > +[1]: Documentation/devicetree/bindings/media/video-interfaces.txt > + > +Example: > + > +&dsi { > + ... > + > + panel@0 { > + compatible = "samsung,s6e3ha2"; > + reg = <0>; > + vdd3-supply = <&ldo27_reg>; > + vci-supply = <&ldo28_reg>; > + reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; > + enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; > + te-gpios = <&gpf1 3 GPIO_ACTIVE_HIGH>; > + > + port { > + panel_in: endpoint { > + remote-endpoint = <&dsi_out>; > + }; > + }; > + }; > +}; > + > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > index 62aba97..eea2902 100644 > --- a/drivers/gpu/drm/panel/Kconfig > +++ b/drivers/gpu/drm/panel/Kconfig > @@ -52,6 +52,12 @@ config DRM_PANEL_PANASONIC_VVX10F034N00 > WUXGA (1920x1200) Novatek NT1397-based DSI panel as found in some > Xperia Z2 tablets > > +config DRM_PANEL_SAMSUNG_S6E3HA2 > + tristate "Samsung S6E3HA2 DSI video mode panel" > + depends on OF > + depends on DRM_MIPI_DSI > + select VIDEOMODE_HELPERS > + > config DRM_PANEL_SAMSUNG_S6E8AA0 > tristate "Samsung S6E8AA0 DSI video mode panel" > depends on OF > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > index a5c7ec0..1d483b0 100644 > --- a/drivers/gpu/drm/panel/Makefile > +++ b/drivers/gpu/drm/panel/Makefile > @@ -3,6 +3,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o > obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o > obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o > obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o > +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o > obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o > obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o > obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o > diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > new file mode 100644 > index 0000000..8c5a1c2 > --- /dev/null > +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c > @@ -0,0 +1,741 @@ > +/* > + * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver. > + * > + * Copyright (c) 2016 Samsung Electronics Co., Ltd. > + * Donghwa Lee > + * Hyungwon Hwang > + * Hoegeun Kwon > + * > + * 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. > + */ > + > +#include > +#include > +#include > +#include > +#include > +#include > + > +#define S6E3HA2_MIN_BRIGHTNESS 0 > +#define S6E3HA2_MAX_BRIGHTNESS 100 > +#define S6E3HA2_DEFAULT_BRIGHTNESS 80 > + > +#define S6E3HA2_NUM_GAMMA_STEPS 46 > +#define S6E3HA2_GAMMA_CMD_CNT 35 > +#define S6E3HA2_VINT_STATUS_MAX 10 > + > +static const u8 gamma_tbl[S6E3HA2_NUM_GAMMA_STEPS][S6E3HA2_GAMMA_CMD_CNT] = { > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x82, 0x83, > + 0x85, 0x88, 0x8b, 0x8b, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8c, > + 0x94, 0x84, 0xb1, 0xaf, 0x8e, 0xcf, 0xad, 0xc9, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x84, 0x84, > + 0x85, 0x87, 0x8b, 0x8a, 0x84, 0x88, 0x82, 0x82, 0x89, 0x86, 0x8a, > + 0x93, 0x84, 0xb0, 0xae, 0x8e, 0xc9, 0xa8, 0xc5, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x88, 0x81, 0x84, 0x8a, 0x88, 0x8a, > + 0x91, 0x84, 0xb1, 0xae, 0x8b, 0xd5, 0xb2, 0xcc, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x8a, 0x8a, 0x84, 0x87, 0x81, 0x84, 0x8a, 0x87, 0x8a, > + 0x91, 0x85, 0xae, 0xac, 0x8a, 0xc3, 0xa3, 0xc0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x85, 0x85, > + 0x86, 0x85, 0x88, 0x89, 0x84, 0x89, 0x82, 0x84, 0x87, 0x85, 0x8b, > + 0x91, 0x88, 0xad, 0xab, 0x8a, 0xb7, 0x9b, 0xb6, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x89, 0x8a, 0x84, 0x89, 0x83, 0x83, 0x86, 0x84, 0x8b, > + 0x90, 0x84, 0xb0, 0xae, 0x8b, 0xce, 0xad, 0xc8, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x89, > + 0x8f, 0x84, 0xac, 0xaa, 0x89, 0xb1, 0x98, 0xaf, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x88, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8c, > + 0x91, 0x86, 0xac, 0xaa, 0x89, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x87, 0x89, 0x8a, 0x83, 0x87, 0x82, 0x85, 0x88, 0x87, 0x88, > + 0x8b, 0x82, 0xad, 0xaa, 0x8a, 0xc2, 0xa5, 0xbd, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x89, 0x87, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x82, 0x85, 0x84, 0x8a, > + 0x8e, 0x84, 0xae, 0xac, 0x89, 0xda, 0xb7, 0xd0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x88, 0x83, 0x80, 0x83, 0x82, 0x8b, > + 0x8e, 0x85, 0xac, 0xaa, 0x89, 0xc8, 0xaa, 0xc1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x81, 0x85, 0x81, 0x84, 0x86, 0x84, 0x8c, > + 0x8c, 0x84, 0xa9, 0xa8, 0x87, 0xa3, 0x92, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x84, 0x86, 0x83, 0x80, 0x83, 0x81, 0x8c, > + 0x8d, 0x84, 0xaa, 0xaa, 0x89, 0xce, 0xaf, 0xc5, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x85, 0x86, 0x87, 0x89, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, > + 0x8c, 0x84, 0xa8, 0xa8, 0x88, 0xb5, 0x9f, 0xb0, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x83, 0x85, 0x85, 0x8c, > + 0x8b, 0x84, 0xab, 0xa8, 0x86, 0xd4, 0xb4, 0xc9, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x86, 0x87, 0x88, 0x81, 0x83, 0x80, 0x84, 0x84, 0x85, 0x8b, > + 0x8a, 0x83, 0xa6, 0xa5, 0x84, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x84, 0x84, > + 0x86, 0x85, 0x86, 0x86, 0x82, 0x85, 0x81, 0x82, 0x83, 0x84, 0x8e, > + 0x8b, 0x83, 0xa4, 0xa3, 0x8a, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8e, > + 0x8b, 0x83, 0xa4, 0xa2, 0x86, 0xc1, 0xa9, 0xb7, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x82, 0x82, 0x84, 0x8d, > + 0x89, 0x82, 0xa2, 0xa1, 0x84, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xb8, 0x00, 0xc3, 0x00, 0xb1, 0x88, 0x86, 0x87, 0x83, 0x83, > + 0x85, 0x86, 0x87, 0x87, 0x82, 0x85, 0x81, 0x83, 0x83, 0x85, 0x8c, > + 0x87, 0x7f, 0xa2, 0x9d, 0x88, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xbb, 0x00, 0xc5, 0x00, 0xb4, 0x87, 0x86, 0x86, 0x84, 0x83, > + 0x86, 0x87, 0x87, 0x87, 0x80, 0x82, 0x7f, 0x86, 0x86, 0x88, 0x8a, > + 0x84, 0x7e, 0x9d, 0x9c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xbd, 0x00, 0xc7, 0x00, 0xb7, 0x87, 0x85, 0x85, 0x84, 0x83, > + 0x86, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x83, 0x84, 0x85, 0x8a, > + 0x85, 0x7e, 0x9c, 0x9b, 0x85, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc0, 0x00, 0xca, 0x00, 0xbb, 0x87, 0x86, 0x85, 0x83, 0x83, > + 0x85, 0x86, 0x86, 0x88, 0x81, 0x83, 0x80, 0x84, 0x85, 0x86, 0x89, > + 0x83, 0x7d, 0x9c, 0x99, 0x87, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc4, 0x00, 0xcd, 0x00, 0xbe, 0x87, 0x86, 0x85, 0x83, 0x83, > + 0x86, 0x85, 0x85, 0x87, 0x81, 0x82, 0x80, 0x82, 0x82, 0x83, 0x8a, > + 0x85, 0x7f, 0x9f, 0x9b, 0x86, 0xb4, 0xa1, 0xac, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xc7, 0x00, 0xd0, 0x00, 0xc2, 0x87, 0x85, 0x85, 0x83, 0x82, > + 0x85, 0x85, 0x85, 0x86, 0x82, 0x83, 0x80, 0x82, 0x82, 0x84, 0x87, > + 0x86, 0x80, 0x9e, 0x9a, 0x87, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xca, 0x00, 0xd2, 0x00, 0xc5, 0x87, 0x85, 0x84, 0x82, 0x82, > + 0x84, 0x85, 0x85, 0x86, 0x81, 0x82, 0x7f, 0x82, 0x82, 0x84, 0x88, > + 0x86, 0x81, 0x9d, 0x98, 0x86, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xce, 0x00, 0xd6, 0x00, 0xca, 0x86, 0x85, 0x84, 0x83, 0x83, > + 0x85, 0x84, 0x84, 0x85, 0x81, 0x82, 0x80, 0x81, 0x81, 0x82, 0x89, > + 0x86, 0x81, 0x9c, 0x97, 0x86, 0xa7, 0x98, 0xa1, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd1, 0x00, 0xd9, 0x00, 0xce, 0x86, 0x84, 0x83, 0x83, 0x82, > + 0x85, 0x85, 0x85, 0x86, 0x81, 0x83, 0x81, 0x82, 0x82, 0x83, 0x86, > + 0x83, 0x7f, 0x99, 0x95, 0x86, 0xbb, 0xa4, 0xb3, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd4, 0x00, 0xdb, 0x00, 0xd1, 0x86, 0x85, 0x83, 0x83, 0x82, > + 0x85, 0x84, 0x84, 0x85, 0x80, 0x83, 0x82, 0x80, 0x80, 0x81, 0x87, > + 0x84, 0x81, 0x98, 0x93, 0x85, 0xae, 0x9c, 0xa8, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xd8, 0x00, 0xde, 0x00, 0xd6, 0x86, 0x84, 0x83, 0x81, 0x81, > + 0x83, 0x85, 0x85, 0x85, 0x82, 0x83, 0x81, 0x81, 0x81, 0x83, 0x86, > + 0x84, 0x80, 0x98, 0x91, 0x85, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xdc, 0x00, 0xe2, 0x00, 0xda, 0x85, 0x84, 0x83, 0x82, 0x82, > + 0x84, 0x84, 0x84, 0x85, 0x81, 0x82, 0x82, 0x80, 0x80, 0x81, 0x83, > + 0x82, 0x7f, 0x99, 0x93, 0x86, 0x94, 0x8b, 0x92, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xdf, 0x00, 0xe5, 0x00, 0xde, 0x85, 0x84, 0x82, 0x82, 0x82, > + 0x84, 0x83, 0x83, 0x84, 0x81, 0x81, 0x80, 0x83, 0x82, 0x84, 0x82, > + 0x81, 0x7f, 0x99, 0x92, 0x86, 0x7b, 0x7b, 0x7c, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x83, 0x83, 0x84, 0x80, > + 0x81, 0x7c, 0x99, 0x92, 0x87, 0xa1, 0x93, 0x9d, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x85, 0x84, 0x83, 0x81, 0x81, > + 0x82, 0x82, 0x82, 0x83, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, > + 0x82, 0x80, 0x91, 0x8d, 0x83, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x84, 0x80, 0x81, 0x80, 0x81, 0x80, 0x82, 0x83, > + 0x81, 0x7f, 0x91, 0x8c, 0x82, 0x8d, 0x88, 0x8b, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x82, > + 0x82, 0x7f, 0x94, 0x89, 0x84, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x82, 0x82, 0x81, 0x81, 0x80, 0x82, 0x83, > + 0x82, 0x7f, 0x91, 0x85, 0x81, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x83, 0x82, 0x84, 0x83, > + 0x82, 0x7f, 0x90, 0x84, 0x81, 0x9a, 0x90, 0x96, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe4, 0x00, 0xe9, 0x00, 0xe3, 0x84, 0x83, 0x82, 0x80, 0x80, > + 0x82, 0x83, 0x83, 0x83, 0x80, 0x80, 0x7f, 0x80, 0x80, 0x81, 0x81, > + 0x82, 0x83, 0x7e, 0x80, 0x7c, 0xa4, 0x97, 0x9f, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xe9, 0x00, 0xec, 0x00, 0xe8, 0x84, 0x83, 0x82, 0x81, 0x81, > + 0x82, 0x82, 0x82, 0x83, 0x7f, 0x7f, 0x7f, 0x81, 0x80, 0x82, 0x83, > + 0x83, 0x84, 0x79, 0x7c, 0x79, 0xb1, 0xa0, 0xaa, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xed, 0x00, 0xf0, 0x00, 0xec, 0x83, 0x83, 0x82, 0x80, 0x80, > + 0x81, 0x82, 0x82, 0x82, 0x7f, 0x7f, 0x7e, 0x81, 0x81, 0x82, 0x80, > + 0x81, 0x81, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xf1, 0x00, 0xf4, 0x00, 0xf1, 0x83, 0x82, 0x82, 0x80, 0x80, > + 0x81, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x7d, > + 0x7e, 0x7f, 0x84, 0x84, 0x83, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xf6, 0x00, 0xf7, 0x00, 0xf5, 0x82, 0x82, 0x81, 0x80, 0x80, > + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x82, > + 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x00, 0xfa, 0x00, 0xfb, 0x00, 0xfa, 0x81, 0x81, 0x81, 0x80, 0x80, > + 0x80, 0x82, 0x82, 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 }, > + { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, > + 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, > + 0x00, 0x00 } > +}; > + > +unsigned char vint_table[S6E3HA2_VINT_STATUS_MAX] = { > + 0x18, 0x19, 0x1a, 0x1b, 0x1c, > + 0x1d, 0x1e, 0x1f, 0x20, 0x21 > +}; > + > +struct s6e3ha2 { > + struct device *dev; > + struct drm_panel panel; > + struct backlight_device *bl_dev; > + > + struct regulator_bulk_data supplies[2]; > + struct gpio_desc *reset_gpio; > + struct gpio_desc *enable_gpio; > + > + /* This field is tested by functions directly accessing DSI bus before > + * transfer, transfer is skipped if it is set. In case of transfer > + * failure or unexpected response the field is set to error value. > + * Such construct allows to eliminate many checks in higher level > + * functions. > + */ > + int error; > +}; > + > +static int s6e3ha2_clear_error(struct s6e3ha2 *ctx) > +{ > + int ret = ctx->error; > + > + ctx->error = 0; > + return ret; > +} > + > +static void s6e3ha2_dcs_write(struct s6e3ha2 *ctx, const void *data, size_t len) > +{ > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + ssize_t ret; > + > + if (ctx->error < 0) > + return; > + > + ret = mipi_dsi_dcs_write_buffer(dsi, data, len); > + if (ret < 0) { > + dev_err(ctx->dev, "error %zd writing dcs seq: %*ph\n", > + ret, (int)len, data); > + ctx->error = ret; > + } > +} > + > +#define s6e3ha2_dcs_write_seq_static(ctx, seq...) do { \ > + static const u8 d[] = { seq }; \ > + s6e3ha2_dcs_write(ctx, d, ARRAY_SIZE(d)); \ > +} while (0) > + > +static void s6e3ha2_test_key_on_f0(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0x5a, 0x5a); > +} > + > +static void s6e3ha2_test_key_off_f0(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf0, 0xa5, 0xa5); > +} > + > +static void s6e3ha2_test_key_on_fc(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0x5a, 0x5a); > +} > + > +static void s6e3ha2_test_key_off_fc(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfc, 0xa5, 0xa5); > +} > + > +static void s6e3ha2_single_dsi_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf2, 0x67); > + s6e3ha2_dcs_write_seq_static(ctx, 0xf9, 0x09); > +} > + > +static void s6e3ha2_freq_calibration(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfd, 0x1c); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20, 0x39); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0xa0); > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x20); > + s6e3ha2_dcs_write_seq_static(ctx, 0xce, 0x03, 0x3b, 0x12, 0x62, > + 0x40, 0x80, 0xc0, 0x28, 0x28, 0x28, 0x28, 0x39, 0xc5); > +} > + > +static void s6e3ha2_aor_control(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb2, 0x03, 0x10); > +} > + > +static void s6e3ha2_caps_elvss_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb6, 0x9c, 0x0a); > +} > + > +static void s6e3ha2_acl_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0x55, 0x00); > +} > + > +static void s6e3ha2_acl_off_opr(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb5, 0x40); > +} > + > +static void s6e3ha2_test_global(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x07); > +} > + > +static void s6e3ha2_test(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb8, 0x19); > +} > + > +static void s6e3ha2_touch_hsync_on1(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, > + 0xbd, 0x33, 0x11, 0x02, 0x16, 0x02, 0x16); > +} > + > +static void s6e3ha2_pentile_control(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xc0, 0x00, 0x00, 0xd8, 0xd8); > +} > + > +static void s6e3ha2_poc_global(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb0, 0x20); > +} > + > +static void s6e3ha2_poc_setting(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xfe, 0x08); > +} > + > +static void s6e3ha2_pcd_set_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xcc, 0x40, 0x51); > +} > + > +static void s6e3ha2_err_fg_set(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xed, 0x44); > +} > + > +static void s6e3ha2_hbm_off(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0x53, 0x00); > +} > + > +static void s6e3ha2_te_start_setting(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xb9, 0x10, 0x09, 0xff, 0x00, 0x09); > +} > + > +static void s6e3ha2_gamma_update(struct s6e3ha2 *ctx) > +{ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x03); > + ndelay(100); /* need for 100ns delay */ > + s6e3ha2_dcs_write_seq_static(ctx, 0xf7, 0x00); > +} > + > +static int s6e3ha2_get_brightness(struct backlight_device *bl_dev) > +{ > + return bl_dev->props.brightness; > +} > + > +static void s6e3ha2_set_vint(struct s6e3ha2 *ctx) > +{ > + struct backlight_device *bl_dev = ctx->bl_dev; > + unsigned int brightness = bl_dev->props.brightness; > + unsigned char data[] = { 0xf4, 0x8b, > + vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) / > + S6E3HA2_MAX_BRIGHTNESS] }; > + > + s6e3ha2_dcs_write(ctx, data, 3); > +} > + > +static unsigned int s6e3ha2_get_brightness_index(unsigned int brightness) > +{ > + return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) / > + S6E3HA2_MAX_BRIGHTNESS; > +} > + > +static int s6e3ha2_update_gamma(struct s6e3ha2 *ctx, unsigned int brightness) > +{ > + struct backlight_device *bl_dev = ctx->bl_dev; > + unsigned int index = s6e3ha2_get_brightness_index(brightness); > + u8 data[S6E3HA2_GAMMA_CMD_CNT + 1] = { 0xca, }; > + > + memcpy(data + 1, gamma_tbl + index, S6E3HA2_GAMMA_CMD_CNT); > + s6e3ha2_dcs_write(ctx, data, ARRAY_SIZE(data)); > + > + s6e3ha2_gamma_update(ctx); > + bl_dev->props.brightness = brightness; > + > + return 0; > +} > + > +static int s6e3ha2_set_brightness(struct backlight_device *bl_dev) > +{ > + struct s6e3ha2 *ctx = (struct s6e3ha2 *)bl_get_data(bl_dev); > + unsigned int brightness = bl_dev->props.brightness; > + > + if (brightness < S6E3HA2_MIN_BRIGHTNESS || > + brightness > bl_dev->props.max_brightness) { > + dev_err(ctx->dev, "Invalid brightness: %u\n", brightness); > + return -EINVAL; > + } > + > + if (bl_dev->props.power > FB_BLANK_NORMAL) > + return -EPERM; > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_update_gamma(ctx, brightness); > + s6e3ha2_aor_control(ctx); > + s6e3ha2_set_vint(ctx); > + s6e3ha2_test_key_off_f0(ctx); > + > + return ctx->error; > +} > + > +static const struct backlight_ops s6e3ha2_bl_ops = { > + .get_brightness = s6e3ha2_get_brightness, > + .update_status = s6e3ha2_set_brightness, > +}; > + > +static void s6e3ha2_panel_init(struct s6e3ha2 *ctx) > +{ > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + mipi_dsi_dcs_exit_sleep_mode(dsi); > + usleep_range(5000, 6000); > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_single_dsi_set(ctx); > + s6e3ha2_test_key_on_fc(ctx); > + s6e3ha2_freq_calibration(ctx); > + s6e3ha2_test_key_off_fc(ctx); > + s6e3ha2_test_key_off_f0(ctx); > +} > + > +static int s6e3ha2_power_off(struct s6e3ha2 *ctx) > +{ > + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); > +} > + > +static int s6e3ha2_disable(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + mipi_dsi_dcs_enter_sleep_mode(dsi); > + if (ctx->error != 0) > + goto err; > + > + mipi_dsi_dcs_set_display_off(dsi); > + if (ctx->error != 0) > + goto err; > + > + msleep(40); > + ctx->bl_dev->props.power = FB_BLANK_NORMAL; > + > + return 0; > +err: > + return ctx->error; > +} > + > +static int s6e3ha2_unprepare(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + int ret; > + > + ret = s6e3ha2_clear_error(ctx); > + if (!ret) > + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; > + > + return s6e3ha2_power_off(ctx); > +} > + > +static int s6e3ha2_power_on(struct s6e3ha2 *ctx) > +{ > + int ret; > + > + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); > + if (ret < 0) > + return ret; > + > + msleep(120); > + > + gpiod_set_value(ctx->enable_gpio, 0); > + usleep_range(5000, 6000); > + gpiod_set_value(ctx->enable_gpio, 1); > + > + gpiod_set_value(ctx->reset_gpio, 1); > + usleep_range(5000, 6000); > + gpiod_set_value(ctx->reset_gpio, 0); > + usleep_range(5000, 6000); > + > + return 0; > +} > +static int s6e3ha2_prepare(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + int ret; > + > + ret = s6e3ha2_power_on(ctx); > + if (ret < 0) > + return ret; > + > + s6e3ha2_panel_init(ctx); > + > + ret = s6e3ha2_clear_error(ctx); > + if (ret < 0) { > + s6e3ha2_power_off(ctx); > + return ret; > + } > + > + ctx->bl_dev->props.power = FB_BLANK_NORMAL; > + > + return 0; > +} > + > +static int s6e3ha2_enable(struct drm_panel *panel) > +{ > + struct s6e3ha2 *ctx = container_of(panel, struct s6e3ha2, panel); > + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev); > + > + /* common setting */ > + mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); > + > + s6e3ha2_test_key_on_f0(ctx); > + s6e3ha2_test_key_on_fc(ctx); > + s6e3ha2_touch_hsync_on1(ctx); > + s6e3ha2_pentile_control(ctx); > + s6e3ha2_poc_global(ctx); > + s6e3ha2_poc_setting(ctx); > + s6e3ha2_test_key_off_fc(ctx); > + > + /* pcd setting off for TB */ > + s6e3ha2_pcd_set_off(ctx); > + s6e3ha2_err_fg_set(ctx); > + s6e3ha2_te_start_setting(ctx); > + > + /* brightness setting */ > + s6e3ha2_set_brightness(ctx->bl_dev); > + s6e3ha2_aor_control(ctx); > + s6e3ha2_caps_elvss_set(ctx); > + s6e3ha2_gamma_update(ctx); > + s6e3ha2_acl_off(ctx); > + s6e3ha2_acl_off_opr(ctx); > + s6e3ha2_hbm_off(ctx); > + > + /* elvss temp compensation */ > + s6e3ha2_test_global(ctx); > + s6e3ha2_test(ctx); > + s6e3ha2_test_key_off_f0(ctx); > + > + mipi_dsi_dcs_set_display_on(dsi); > + if (ctx->error != 0) > + return ctx->error; > + > + ctx->bl_dev->props.power = FB_BLANK_UNBLANK; > + > + return 0; > +} > + > +static const struct drm_display_mode default_mode = { > + .clock = 14874, > + .hdisplay = 1440, > + .hsync_start = 1440 + 1, > + .hsync_end = 1440 + 1 + 1, > + .htotal = 1440 + 1 + 1 + 1, > + .vdisplay = 2560, > + .vsync_start = 2560 + 1, > + .vsync_end = 2560 + 1 + 1, > + .vtotal = 2560 + 1 + 1 + 15, > + .vrefresh = 60, > + .flags = 0, > +}; > + > +static int s6e3ha2_get_modes(struct drm_panel *panel) > +{ > + struct drm_connector *connector = panel->connector; > + struct drm_display_mode *mode; > + > + mode = drm_mode_duplicate(panel->drm, &default_mode); > + if (!mode) { > + DRM_ERROR("failed to create a new display mode\n"); > + DRM_ERROR("failed to add mode %ux%ux@%u\n", > + default_mode.hdisplay, default_mode.vdisplay, > + default_mode.vrefresh); > + return -ENOMEM; > + } > + > + drm_mode_set_name(mode); > + > + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; > + drm_mode_probed_add(connector, mode); > + > + connector->display_info.width_mm = 71; > + connector->display_info.height_mm = 125; > + > + return 1; > +} > + > +static const struct drm_panel_funcs s6e3ha2_drm_funcs = { > + .disable = s6e3ha2_disable, > + .unprepare = s6e3ha2_unprepare, > + .prepare = s6e3ha2_prepare, > + .enable = s6e3ha2_enable, > + .get_modes = s6e3ha2_get_modes, > +}; > + > +static int s6e3ha2_probe(struct mipi_dsi_device *dsi) > +{ > + struct device *dev = &dsi->dev; > + struct s6e3ha2 *ctx; > + int ret; > + > + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) > + return -ENOMEM; > + > + mipi_dsi_set_drvdata(dsi, ctx); > + > + ctx->dev = dev; > + > + dsi->lanes = 4; > + dsi->format = MIPI_DSI_FMT_RGB888; > + dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS; > + > + ctx->supplies[0].supply = "vdd3"; > + ctx->supplies[1].supply = "vci"; > + > + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), > + ctx->supplies); > + if (ret < 0) { > + dev_err(dev, "failed to get regulators: %d\n", ret); > + return ret; > + } > + > + ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); > + if (IS_ERR(ctx->reset_gpio)) { > + dev_err(dev, "cannot get reset-gpios %ld\n", > + PTR_ERR(ctx->reset_gpio)); > + return PTR_ERR(ctx->reset_gpio); > + } > + > + ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); > + if (IS_ERR(ctx->enable_gpio)) { > + dev_err(dev, "cannot get enable-gpios %ld\n", > + PTR_ERR(ctx->enable_gpio)); > + return PTR_ERR(ctx->enable_gpio); > + } > + > + ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx, > + &s6e3ha2_bl_ops, NULL); > + if (IS_ERR(ctx->bl_dev)) { > + dev_err(dev, "failed to register backlight device\n"); > + return PTR_ERR(ctx->bl_dev); > + } > + > + ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS; > + ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; > + ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; > + > + drm_panel_init(&ctx->panel); > + ctx->panel.dev = dev; > + ctx->panel.funcs = &s6e3ha2_drm_funcs; > + > + ret = drm_panel_add(&ctx->panel); > + if (ret < 0) > + goto unregister_backlight; > + > + ret = mipi_dsi_attach(dsi); > + if (ret < 0) > + goto remove_panel; > + > + return ret; > + > +remove_panel: > + drm_panel_remove(&ctx->panel); > + > +unregister_backlight: > + backlight_device_unregister(ctx->bl_dev); > + > + return ret; > +} > + > +static int s6e3ha2_remove(struct mipi_dsi_device *dsi) > +{ > + struct s6e3ha2 *ctx = mipi_dsi_get_drvdata(dsi); > + > + mipi_dsi_detach(dsi); > + drm_panel_remove(&ctx->panel); > + backlight_device_unregister(ctx->bl_dev); > + > + return 0; > +} > + > +static const struct of_device_id s6e3ha2_of_match[] = { > + { .compatible = "samsung,s6e3ha2" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, s6e3ha2_of_match); > + > +static struct mipi_dsi_driver s6e3ha2_driver = { > + .probe = s6e3ha2_probe, > + .remove = s6e3ha2_remove, > + .driver = { > + .name = "panel-samsung-s6e3ha2", > + .of_match_table = s6e3ha2_of_match, > + }, > +}; > +module_mipi_dsi_driver(s6e3ha2_driver); > + > +MODULE_AUTHOR("Donghwa Lee "); > +MODULE_AUTHOR("Hyungwon Hwang "); > +MODULE_AUTHOR("Hoegeun Kwon "); > +MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver"); > +MODULE_LICENSE("GPL v2"); >