From patchwork Thu Jan 16 03:36:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Icenowy Zheng X-Patchwork-Id: 11336345 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 228E013B4 for ; Thu, 16 Jan 2020 08:21:21 +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 0055C2077B for ; Thu, 16 Jan 2020 08:21:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=aosc.io header.i=@aosc.io header.b="GaOpKR53" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0055C2077B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aosc.io 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 8539D6EC23; Thu, 16 Jan 2020 08:21:04 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from dodo.xh.is (dodo.xh.is [IPv6:2001:19f0:8001:184d:5400:2ff:fe7b:e8bd]) by gabe.freedesktop.org (Postfix) with ESMTPS id EA3A36EBBC for ; Thu, 16 Jan 2020 03:37:29 +0000 (UTC) X-Spam: yes X-Spam-Score: 6.6 / 99999 X-Spam-Symbols: FROM_EQ_ENVFROM, SUSPICIOUS_RECIPS, FROM_HAS_DN, TO_DN_SOME, FREEMAIL_ENVRCPT, RCVD_NO_TLS_LAST, RCPT_COUNT_TWELVE, ARC_NA, RCVD_VIA_SMTP_AUTH, BROKEN_CONTENT_TYPE, MID_CONTAINS_FROM, R_MISSING_CHARSET, TAGGED_RCPT, TO_MATCH_ENVRCPT_SOME, MIME_TRACE, ASN, RCVD_COUNT_TWO Received: by dodo.xh.is (OpenSMTPD) with ESMTPSA id 166b653e (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256:NO); Wed, 15 Jan 2020 19:37:29 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) (Authenticated sender: icenowy@aosc.io) by hermes.aosc.io (Postfix) with ESMTPSA id 4F85D47722; Thu, 16 Jan 2020 03:37:24 +0000 (UTC) From: Icenowy Zheng To: Rob Herring , Maxime Ripard , Chen-Yu Tsai , Thierry Reding , Sam Ravnborg , David Airlie , Daniel Vetter Subject: [PATCH v2 3/5] drm/panel: Add Feixin K101 IM2BA02 panel Date: Thu, 16 Jan 2020 11:36:34 +0800 Message-Id: <20200116033636.512461-4-icenowy@aosc.io> In-Reply-To: <20200116033636.512461-1-icenowy@aosc.io> References: <20200116033636.512461-1-icenowy@aosc.io> MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aosc.io; s=dkim; t=1579145847; h=from:subject:date:message-id:to:cc:mime-version:content-transfer-encoding:in-reply-to:references; bh=QBucPrKeFngOiKB8rJ2zea2pBOmCE0vN08xK7jAsLkI=; b=GaOpKR53FKfkJp1DF6Epfpdtf+HUbtI52lTjxxv4shS/auDgcxrCUjANJQsV9FD3WVPCme xIYL74kHD3LZveFTeooB9fR3K+opynDb96vVmxS5mes/Z1zd9hGTgwi8UalpiWrLctAdah IbeHlMMMJPzs8SQnxuSmHqEbuNSj9pk= X-Mailman-Approved-At: Thu, 16 Jan 2020 08:21:03 +0000 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: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com, linux-arm-kernel@lists.infradead.org, Icenowy Zheng Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Feixin K101 IM2BA02 is a 800x1280 4-lane MIPI-DSI LCD panel. Add a panel driver for it. Signed-off-by: Icenowy Zheng --- Changes in v2: - Use regulator_bulk. - Small code fixes. MAINTAINERS | 6 + drivers/gpu/drm/panel/Kconfig | 9 + drivers/gpu/drm/panel/Makefile | 1 + .../gpu/drm/panel/panel-feixin-k101-im2ba02.c | 526 ++++++++++++++++++ 4 files changed, 542 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c diff --git a/MAINTAINERS b/MAINTAINERS index 98cf0b034f61..2ec9ae62478a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5251,6 +5251,12 @@ T: git git://anongit.freedesktop.org/drm/drm-misc S: Maintained F: drivers/gpu/drm/tve200/ +DRM DRIVER FOR FEIXIN K101 IM2BA02 MIPI-DSI LCD PANELS +M: Icenowy Zheng +S: Maintained +F: drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c +F: Documentation/devicetree/bindings/display/panel/feixin,k101-im2ba02.yaml + DRM DRIVER FOR FEIYANG FY07024DI26A30-D MIPI-DSI LCD PANELS M: Jagan Teki S: Maintained diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index ae44ac2ec106..4641ec804e5e 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -50,6 +50,15 @@ config DRM_PANEL_SIMPLE that it can be automatically turned off when the panel goes into a low power state. +config DRM_PANEL_FEIXIN_K101_IM2BA02 + tristate "Feixin K101 IM2BA02 panel" + 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 Feixin K101 IM2BA02 + 4-lane 800x1280 MIPI DSI panel. + config DRM_PANEL_FEIYANG_FY07024DI26A30D tristate "Feiyang FY07024DI26A30-D MIPI-DSI LCD panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 7c4d3c581fd4..442c17ccc62e 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_DRM_PANEL_ARM_VERSATILE) += panel-arm-versatile.o obj-$(CONFIG_DRM_PANEL_BOE_HIMAX8279D) += panel-boe-himax8279d.o obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o +obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o diff --git a/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c b/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c new file mode 100644 index 000000000000..fddbfddf6566 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-feixin-k101-im2ba02.c @@ -0,0 +1,526 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019-2020 Icenowy Zheng + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#define K101_IM2BA02_INIT_CMD_LEN 2 + +static const char * const regulator_names[] = { + "dvdd", + "avdd", + "cvdd" +}; + +struct k101_im2ba02 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + + struct regulator_bulk_data supplies[ARRAY_SIZE(regulator_names)]; + struct gpio_desc *reset; +}; + +static inline struct k101_im2ba02 *panel_to_k101_im2ba02(struct drm_panel *panel) +{ + return container_of(panel, struct k101_im2ba02, panel); +} + +struct k101_im2ba02_init_cmd { + u8 data[K101_IM2BA02_INIT_CMD_LEN]; +}; + +static const struct k101_im2ba02_init_cmd k101_im2ba02_init_cmds[] = { + /* Switch to page 0 */ + { .data = { 0xE0, 0x00 } }, + + /* Seems to be some password */ + { .data = { 0xE1, 0x93} }, + { .data = { 0xE2, 0x65 } }, + { .data = { 0xE3, 0xF8 } }, + + /* Lane number, 0x02 - 3 lanes, 0x03 - 4 lanes */ + { .data = { 0x80, 0x03 } }, + + /* Sequence control */ + { .data = { 0x70, 0x02 } }, + { .data = { 0x71, 0x23 } }, + { .data = { 0x72, 0x06 } }, + + /* Switch to page 1 */ + { .data = { 0xE0, 0x01 } }, + + /* Set VCOM */ + { .data = { 0x00, 0x00 } }, + { .data = { 0x01, 0x66 } }, + /* Set VCOM_Reverse */ + { .data = { 0x03, 0x00 } }, + { .data = { 0x04, 0x25 } }, + + /* Set Gamma Power, VG[MS][PN] */ + { .data = { 0x17, 0x00 } }, + { .data = { 0x18, 0x6D } }, + { .data = { 0x19, 0x00 } }, + { .data = { 0x1A, 0x00 } }, + { .data = { 0x1B, 0xBF } }, /* VGMN = -4.5V */ + { .data = { 0x1C, 0x00 } }, + + /* Set Gate Power */ + { .data = { 0x1F, 0x3E } }, /* VGH_R = 15V */ + { .data = { 0x20, 0x28 } }, /* VGL_R = -11V */ + { .data = { 0x21, 0x28 } }, /* VGL_R2 = -11V */ + { .data = { 0x22, 0x0E } }, /* PA[6:4] = 0, PA[0] = 0 */ + + /* Set Panel */ + { .data = { 0x37, 0x09 } }, /* SS = 1, BGR = 1 */ + + /* Set RGBCYC */ + { .data = { 0x38, 0x04 } }, /* JDT = 100 column inversion */ + { .data = { 0x39, 0x08 } }, /* RGB_N_EQ1 */ + { .data = { 0x3A, 0x12 } }, /* RGB_N_EQ2 */ + { .data = { 0x3C, 0x78 } }, /* set EQ3 for TE_H */ + { .data = { 0x3D, 0xFF } }, /* set CHGEN_ON */ + { .data = { 0x3E, 0xFF } }, /* set CHGEN_OFF */ + { .data = { 0x3F, 0x7F } }, /* set CHGEN_OFF2 */ + + /* Set TCON parameter */ + { .data = { 0x40, 0x06 } }, /* RSO = 800 points */ + { .data = { 0x41, 0xA0 } }, /* LN = 1280 lines */ + + /* Set power voltage */ + { .data = { 0x55, 0x0F } }, /* DCDCM */ + { .data = { 0x56, 0x01 } }, + { .data = { 0x57, 0x69 } }, + { .data = { 0x58, 0x0A } }, + { .data = { 0x59, 0x0A } }, + { .data = { 0x5A, 0x45 } }, + { .data = { 0x5B, 0x15 } }, + + /* Set gamma */ + { .data = { 0x5D, 0x7C } }, + { .data = { 0x5E, 0x65 } }, + { .data = { 0x5F, 0x55 } }, + { .data = { 0x60, 0x49 } }, + { .data = { 0x61, 0x44 } }, + { .data = { 0x62, 0x35 } }, + { .data = { 0x63, 0x3A } }, + { .data = { 0x64, 0x23 } }, + { .data = { 0x65, 0x3D } }, + { .data = { 0x66, 0x3C } }, + { .data = { 0x67, 0x3D } }, + { .data = { 0x68, 0x5D } }, + { .data = { 0x69, 0x4D } }, + { .data = { 0x6A, 0x56 } }, + { .data = { 0x6B, 0x48 } }, + { .data = { 0x6C, 0x45 } }, + { .data = { 0x6D, 0x38 } }, + { .data = { 0x6E, 0x25 } }, + { .data = { 0x6F, 0x00 } }, + { .data = { 0x70, 0x7C } }, + { .data = { 0x71, 0x65 } }, + { .data = { 0x72, 0x55 } }, + { .data = { 0x73, 0x49 } }, + { .data = { 0x74, 0x44 } }, + { .data = { 0x75, 0x35 } }, + { .data = { 0x76, 0x3A } }, + { .data = { 0x77, 0x23 } }, + { .data = { 0x78, 0x3D } }, + { .data = { 0x79, 0x3C } }, + { .data = { 0x7A, 0x3D } }, + { .data = { 0x7B, 0x5D } }, + { .data = { 0x7C, 0x4D } }, + { .data = { 0x7D, 0x56 } }, + { .data = { 0x7E, 0x48 } }, + { .data = { 0x7F, 0x45 } }, + { .data = { 0x80, 0x38 } }, + { .data = { 0x81, 0x25 } }, + { .data = { 0x82, 0x00 } }, + + /* Switch to page 2, for GIP */ + { .data = { 0xE0, 0x02 } }, + + { .data = { 0x00, 0x1E } }, + { .data = { 0x01, 0x1E } }, + { .data = { 0x02, 0x41 } }, + { .data = { 0x03, 0x41 } }, + { .data = { 0x04, 0x43 } }, + { .data = { 0x05, 0x43 } }, + { .data = { 0x06, 0x1F } }, + { .data = { 0x07, 0x1F } }, + { .data = { 0x08, 0x1F } }, + { .data = { 0x09, 0x1F } }, + { .data = { 0x0A, 0x1E } }, + { .data = { 0x0B, 0x1E } }, + { .data = { 0x0C, 0x1F } }, + { .data = { 0x0D, 0x47 } }, + { .data = { 0x0E, 0x47 } }, + { .data = { 0x0F, 0x45 } }, + { .data = { 0x10, 0x45 } }, + { .data = { 0x11, 0x4B } }, + { .data = { 0x12, 0x4B } }, + { .data = { 0x13, 0x49 } }, + { .data = { 0x14, 0x49 } }, + { .data = { 0x15, 0x1F } }, + + { .data = { 0x16, 0x1E } }, + { .data = { 0x17, 0x1E } }, + { .data = { 0x18, 0x40 } }, + { .data = { 0x19, 0x40 } }, + { .data = { 0x1A, 0x42 } }, + { .data = { 0x1B, 0x42 } }, + { .data = { 0x1C, 0x1F } }, + { .data = { 0x1D, 0x1F } }, + { .data = { 0x1E, 0x1F } }, + { .data = { 0x1F, 0x1f } }, + { .data = { 0x20, 0x1E } }, + { .data = { 0x21, 0x1E } }, + { .data = { 0x22, 0x1f } }, + { .data = { 0x23, 0x46 } }, + { .data = { 0x24, 0x46 } }, + { .data = { 0x25, 0x44 } }, + { .data = { 0x26, 0x44 } }, + { .data = { 0x27, 0x4A } }, + { .data = { 0x28, 0x4A } }, + { .data = { 0x29, 0x48 } }, + { .data = { 0x2A, 0x48 } }, + { .data = { 0x2B, 0x1f } }, + + { .data = { 0x2C, 0x1F } }, + { .data = { 0x2D, 0x1F } }, + { .data = { 0x2E, 0x42 } }, + { .data = { 0x2F, 0x42 } }, + { .data = { 0x30, 0x40 } }, + { .data = { 0x31, 0x40 } }, + { .data = { 0x32, 0x1E } }, + { .data = { 0x33, 0x1E } }, + { .data = { 0x34, 0x1F } }, + { .data = { 0x35, 0x1F } }, + { .data = { 0x36, 0x1E } }, + { .data = { 0x37, 0x1E } }, + { .data = { 0x38, 0x1F } }, + { .data = { 0x39, 0x48 } }, + { .data = { 0x3A, 0x48 } }, + { .data = { 0x3B, 0x4A } }, + { .data = { 0x3C, 0x4A } }, + { .data = { 0x3D, 0x44 } }, + { .data = { 0x3E, 0x44 } }, + { .data = { 0x3F, 0x46 } }, + { .data = { 0x40, 0x46 } }, + { .data = { 0x41, 0x1F } }, + + { .data = { 0x42, 0x1F } }, + { .data = { 0x43, 0x1F } }, + { .data = { 0x44, 0x43 } }, + { .data = { 0x45, 0x43 } }, + { .data = { 0x46, 0x41 } }, + { .data = { 0x47, 0x41 } }, + { .data = { 0x48, 0x1E } }, + { .data = { 0x49, 0x1E } }, + { .data = { 0x4A, 0x1E } }, + { .data = { 0x4B, 0x1F } }, + { .data = { 0x4C, 0x1E } }, + { .data = { 0x4D, 0x1E } }, + { .data = { 0x4E, 0x1F } }, + { .data = { 0x4F, 0x49 } }, + { .data = { 0x50, 0x49 } }, + { .data = { 0x51, 0x4B } }, + { .data = { 0x52, 0x4B } }, + { .data = { 0x53, 0x45 } }, + { .data = { 0x54, 0x45 } }, + { .data = { 0x55, 0x47 } }, + { .data = { 0x56, 0x47 } }, + { .data = { 0x57, 0x1F } }, + + { .data = { 0x58, 0x10 } }, + { .data = { 0x59, 0x00 } }, + { .data = { 0x5A, 0x00 } }, + { .data = { 0x5B, 0x30 } }, + { .data = { 0x5C, 0x02 } }, + { .data = { 0x5D, 0x40 } }, + { .data = { 0x5E, 0x01 } }, + { .data = { 0x5F, 0x02 } }, + { .data = { 0x60, 0x30 } }, + { .data = { 0x61, 0x01 } }, + { .data = { 0x62, 0x02 } }, + { .data = { 0x63, 0x6A } }, + { .data = { 0x64, 0x6A } }, + { .data = { 0x65, 0x05 } }, + { .data = { 0x66, 0x12 } }, + { .data = { 0x67, 0x74 } }, + { .data = { 0x68, 0x04 } }, + { .data = { 0x69, 0x6A } }, + { .data = { 0x6A, 0x6A } }, + { .data = { 0x6B, 0x08 } }, + + { .data = { 0x6C, 0x00 } }, + { .data = { 0x6D, 0x04 } }, + { .data = { 0x6E, 0x04 } }, + { .data = { 0x6F, 0x88 } }, + { .data = { 0x70, 0x00 } }, + { .data = { 0x71, 0x00 } }, + { .data = { 0x72, 0x06 } }, + { .data = { 0x73, 0x7B } }, + { .data = { 0x74, 0x00 } }, + { .data = { 0x75, 0x07 } }, + { .data = { 0x76, 0x00 } }, + { .data = { 0x77, 0x5D } }, + { .data = { 0x78, 0x17 } }, + { .data = { 0x79, 0x1F } }, + { .data = { 0x7A, 0x00 } }, + { .data = { 0x7B, 0x00 } }, + { .data = { 0x7C, 0x00 } }, + { .data = { 0x7D, 0x03 } }, + { .data = { 0x7E, 0x7B } }, + + { .data = { 0xE0, 0x04 } }, + { .data = { 0x2B, 0x2B } }, + { .data = { 0x2E, 0x44 } }, + + { .data = { 0xE0, 0x01 } }, + { .data = { 0x0E, 0x01 } }, + + { .data = { 0xE0, 0x03 } }, + { .data = { 0x98, 0x2F } }, + + { .data = { 0xE0, 0x00 } }, + { .data = { 0xE6, 0x02 } }, + { .data = { 0xE7, 0x02 } }, + + { .data = { 0x11, 0x00 } }, +}; + +static const struct k101_im2ba02_init_cmd timed_cmds[] = { + { .data = { 0x29, 0x00 } }, + { .data = { 0x35, 0x00 } }, +}; + +static int k101_im2ba02_prepare(struct drm_panel *panel) +{ + struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel); + struct mipi_dsi_device *dsi = ctx->dsi; + unsigned int i; + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret) + return ret; + + msleep(30); + + gpiod_set_value(ctx->reset, 1); + msleep(50); + + gpiod_set_value(ctx->reset, 0); + msleep(50); + + gpiod_set_value(ctx->reset, 1); + msleep(200); + + for (i = 0; i < ARRAY_SIZE(k101_im2ba02_init_cmds); i++) { + const struct k101_im2ba02_init_cmd *cmd = &k101_im2ba02_init_cmds[i]; + + ret = mipi_dsi_dcs_write_buffer(dsi, cmd->data, K101_IM2BA02_INIT_CMD_LEN); + if (ret < 0) + goto powerdown; + } + + return 0; + +powerdown: + gpiod_set_value(ctx->reset, 0); + msleep(50); + + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); +} + +static int k101_im2ba02_enable(struct drm_panel *panel) +{ + struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel); + const struct k101_im2ba02_init_cmd *cmd = &timed_cmds[1]; + int ret; + + msleep(150); + + ret = mipi_dsi_dcs_set_display_on(ctx->dsi); + if (ret < 0) + return ret; + + msleep(50); + + return mipi_dsi_dcs_write_buffer(ctx->dsi, cmd->data, K101_IM2BA02_INIT_CMD_LEN); +} + +static int k101_im2ba02_disable(struct drm_panel *panel) +{ + struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel); + + return mipi_dsi_dcs_set_display_off(ctx->dsi); +} + +static int k101_im2ba02_unprepare(struct drm_panel *panel) +{ + struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel); + int ret; + + ret = mipi_dsi_dcs_set_display_off(ctx->dsi); + if (ret < 0) + DRM_DEV_ERROR(panel->dev, "failed to set display off: %d\n", + ret); + + ret = mipi_dsi_dcs_enter_sleep_mode(ctx->dsi); + if (ret < 0) + DRM_DEV_ERROR(panel->dev, "failed to enter sleep mode: %d\n", + ret); + + msleep(200); + + gpiod_set_value(ctx->reset, 0); + msleep(20); + + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); +} + +static const struct drm_display_mode k101_im2ba02_default_mode = { + .clock = 70000, + .vrefresh = 60, + + .hdisplay = 800, + .hsync_start = 800 + 20, + .hsync_end = 800 + 20 + 20, + .htotal = 800 + 20 + 20 + 20, + + .vdisplay = 1280, + .vsync_start = 1280 + 16, + .vsync_end = 1280 + 16 + 4, + .vtotal = 1280 + 16 + 4 + 4, + + .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, + .width_mm = 136, + .height_mm = 217, +}; + +static int k101_im2ba02_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct k101_im2ba02 *ctx = panel_to_k101_im2ba02(panel); + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(connector->dev, &k101_im2ba02_default_mode); + if (!mode) { + DRM_DEV_ERROR(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n", + k101_im2ba02_default_mode.hdisplay, + k101_im2ba02_default_mode.vdisplay, + k101_im2ba02_default_mode.vrefresh); + return -ENOMEM; + } + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + connector->display_info.width_mm = mode->width_mm; + connector->display_info.height_mm = mode->height_mm; + drm_mode_probed_add(connector, mode); + + return 1; +} + +static const struct drm_panel_funcs k101_im2ba02_funcs = { + .disable = k101_im2ba02_disable, + .unprepare = k101_im2ba02_unprepare, + .prepare = k101_im2ba02_prepare, + .enable = k101_im2ba02_enable, + .get_modes = k101_im2ba02_get_modes, +}; + +static int k101_im2ba02_dsi_probe(struct mipi_dsi_device *dsi) +{ + struct k101_im2ba02 *ctx; + unsigned int i; + int ret; + + ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + mipi_dsi_set_drvdata(dsi, ctx); + ctx->dsi = dsi; + + for (i = 0; i < ARRAY_SIZE(ctx->supplies); i++) + ctx->supplies[i].supply = regulator_names[i]; + + ret = devm_regulator_bulk_get(&dsi->dev, ARRAY_SIZE(ctx->supplies), + ctx->supplies); + if (ret < 0) { + DRM_DEV_ERROR(&dsi->dev, "Couldn't get regulators\n"); + return ret; + } + + ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(ctx->reset)) { + DRM_DEV_ERROR(&dsi->dev, "Couldn't get our reset GPIO\n"); + return PTR_ERR(ctx->reset); + } + + drm_panel_init(&ctx->panel, &dsi->dev, &k101_im2ba02_funcs, + DRM_MODE_CONNECTOR_DSI); + + ret = drm_panel_of_backlight(&ctx->panel); + if (ret) + return ret; + + ret = drm_panel_add(&ctx->panel); + if (ret < 0) + return ret; + + dsi->mode_flags = MIPI_DSI_MODE_VIDEO; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->lanes = 4; + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + drm_panel_remove(&ctx->panel); + return ret; + } + + return 0; +} + +static int k101_im2ba02_dsi_remove(struct mipi_dsi_device *dsi) +{ + struct k101_im2ba02 *ctx = mipi_dsi_get_drvdata(dsi); + + mipi_dsi_detach(dsi); + drm_panel_remove(&ctx->panel); + + return 0; +} + +static const struct of_device_id k101_im2ba02_of_match[] = { + { .compatible = "feixin,k101-im2ba02", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, k101_im2ba02_of_match); + +static struct mipi_dsi_driver k101_im2ba02_driver = { + .probe = k101_im2ba02_dsi_probe, + .remove = k101_im2ba02_dsi_remove, + .driver = { + .name = "feixin-k101-im2ba02", + .of_match_table = k101_im2ba02_of_match, + }, +}; +module_mipi_dsi_driver(k101_im2ba02_driver); + +MODULE_AUTHOR("Icenowy Zheng "); +MODULE_DESCRIPTION("Feixin K101 IM2BA02 MIPI-DSI LCD panel"); +MODULE_LICENSE("GPL");