From patchwork Sun Jul 7 18:18:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 11034215 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A42C7912 for ; Sun, 7 Jul 2019 18:27:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 920ED27FAC for ; Sun, 7 Jul 2019 18:27:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 856F62837D; Sun, 7 Jul 2019 18:27:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id E0EE927FAC for ; Sun, 7 Jul 2019 18:27:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1DC5289B18; Sun, 7 Jul 2019 18:27:16 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7B7BD89B18 for ; Sun, 7 Jul 2019 18:27:14 +0000 (UTC) Received: from pendragon.nordic-sky.finnair.com (unknown [38.98.37.142]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 34AB2CC; Sun, 7 Jul 2019 20:26:51 +0200 (CEST) From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Subject: [PATCH 20/60] drm/panel: Add driver for the NEC NL8048HL11 panel Date: Sun, 7 Jul 2019 21:18:57 +0300 Message-Id: <20190707181937.6250-17-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190707181937.6250-1-laurent.pinchart@ideasonboard.com> References: <20190707180852.5512-1-laurent.pinchart@ideasonboard.com> <20190707181937.6250-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1562524033; bh=rN1rb8KPUARTv3HOyb3bdoxcuY5VKo2TZMPyA98uYuM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NNFvKDxmDvmuWPIZqqto4COll4Ljcgn8Q2ZsQx6G37a+FKzxC96D3nxdVdvAHn8Jz U6AtDflDiq0YI2GAy9mYvj8Yyd2R7nw/NM0Xa+XVByhyGj6mxNXYAey63RgcK8jvlM m+30zUTlHEmeWT6J3SSZRkhVW9D4Pqwscv3WCzyw= X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Ripard , Sam Ravnborg , Sebastian Reichel , Tomi Valkeinen , Thierry Reding , Sean Paul Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP This panel is used on the Zoom2/3/3630 SDP boards. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/panel/Kconfig | 7 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-nec-nl8048hl11.c | 249 +++++++++++++++++++ 3 files changed, 257 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-nec-nl8048hl11.c diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 1843135cbeb1..da613c04b835 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -118,6 +118,13 @@ config DRM_PANEL_LG_LG4573 Say Y here if you want to enable support for LG4573 RGB panel. To compile this driver as a module, choose M here. +config DRM_PANEL_NEC_NL8048HL11 + tristate "NEC NL8048HL11 RGB panel" + depends on GPIOLIB && OF && SPI + help + Say Y here if you want to enable support for the NEC NL8048HL11 RGB + panel. To compile this driver as a module, choose M here. + config DRM_PANEL_OLIMEX_LCD_OLINUXINO tristate "Olimex LCD-OLinuXino panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 675b5696c685..e81ed1535024 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o +obj-$(CONFIG_DRM_PANEL_NEC_NL8048HL11) += panel-nec-nl8048hl11.o obj-$(CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO) += panel-olimex-lcd-olinuxino.o obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o obj-$(CONFIG_DRM_PANEL_OSD_OSD101T2587_53TS) += panel-osd-osd101t2587-53ts.o diff --git a/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c b/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c new file mode 100644 index 000000000000..99da665d9b4b --- /dev/null +++ b/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c @@ -0,0 +1,249 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * NEC NL8048HL11 Panel Driver + * + * Copyright (C) 2019 Texas Instruments Incorporated + * + * Based on the omapdrm-specific panel-nec-nl8048hl11 driver + * + * Copyright (C) 2010 Texas Instruments Incorporated + * Author: Erik Gilling + */ + +#include +#include +#include +#include +#include + +#include +#include +#include + +struct nl8048_device { + struct drm_panel panel; + + struct spi_device *spi; + struct gpio_desc *reset_gpio; +}; + +#define to_nl8048_device(p) container_of(p, struct nl8048_device, panel) + +static int nl8048_write(struct nl8048_device *lcd, unsigned char addr, + unsigned char value) +{ + u8 data[4] = { value, 0x01, addr, 0x00 }; + int ret; + + ret = spi_write(lcd->spi, data, sizeof(data)); + if (ret) + dev_err(&lcd->spi->dev, "SPI write to %u failed: %d\n", + addr, ret); + + return ret; +} + +static int nl8048_init(struct nl8048_device *lcd) +{ + static const struct { + unsigned char addr; + unsigned char data; + } nl8048_init_seq[] = { + { 3, 0x01 }, { 0, 0x00 }, { 1, 0x01 }, { 4, 0x00 }, + { 5, 0x14 }, { 6, 0x24 }, { 16, 0xd7 }, { 17, 0x00 }, + { 18, 0x00 }, { 19, 0x55 }, { 20, 0x01 }, { 21, 0x70 }, + { 22, 0x1e }, { 23, 0x25 }, { 24, 0x25 }, { 25, 0x02 }, + { 26, 0x02 }, { 27, 0xa0 }, { 32, 0x2f }, { 33, 0x0f }, + { 34, 0x0f }, { 35, 0x0f }, { 36, 0x0f }, { 37, 0x0f }, + { 38, 0x0f }, { 39, 0x00 }, { 40, 0x02 }, { 41, 0x02 }, + { 42, 0x02 }, { 43, 0x0f }, { 44, 0x0f }, { 45, 0x0f }, + { 46, 0x0f }, { 47, 0x0f }, { 48, 0x0f }, { 49, 0x0f }, + { 50, 0x00 }, { 51, 0x02 }, { 52, 0x02 }, { 53, 0x02 }, + { 80, 0x0c }, { 83, 0x42 }, { 84, 0x42 }, { 85, 0x41 }, + { 86, 0x14 }, { 89, 0x88 }, { 90, 0x01 }, { 91, 0x00 }, + { 92, 0x02 }, { 93, 0x0c }, { 94, 0x1c }, { 95, 0x27 }, + { 98, 0x49 }, { 99, 0x27 }, { 102, 0x76 }, { 103, 0x27 }, + { 112, 0x01 }, { 113, 0x0e }, { 114, 0x02 }, { 115, 0x0c }, + { 118, 0x0c }, { 121, 0x30 }, { 130, 0x00 }, { 131, 0x00 }, + { 132, 0xfc }, { 134, 0x00 }, { 136, 0x00 }, { 138, 0x00 }, + { 139, 0x00 }, { 140, 0x00 }, { 141, 0xfc }, { 143, 0x00 }, + { 145, 0x00 }, { 147, 0x00 }, { 148, 0x00 }, { 149, 0x00 }, + { 150, 0xfc }, { 152, 0x00 }, { 154, 0x00 }, { 156, 0x00 }, + { 157, 0x00 }, + }; + + unsigned int i; + int ret; + + for (i = 0; i < ARRAY_SIZE(nl8048_init_seq); ++i) { + ret = nl8048_write(lcd, nl8048_init_seq[i].addr, + nl8048_init_seq[i].data); + if (ret < 0) + return ret; + } + + udelay(20); + + return nl8048_write(lcd, 2, 0x00); +} + +static int nl8048_disable(struct drm_panel *panel) +{ + struct nl8048_device *lcd = to_nl8048_device(panel); + + gpiod_set_value_cansleep(lcd->reset_gpio, 0); + + return 0; +} + +static int nl8048_enable(struct drm_panel *panel) +{ + struct nl8048_device *lcd = to_nl8048_device(panel); + + gpiod_set_value_cansleep(lcd->reset_gpio, 1); + + return 0; +} + +static const struct drm_display_mode nl8048_mode = { + /* NEC PIX Clock Ratings MIN:21.8MHz TYP:23.8MHz MAX:25.7MHz */ + .clock = 23800, + .hdisplay = 800, + .hsync_start = 800 + 6, + .hsync_end = 800 + 6 + 1, + .htotal = 800 + 6 + 1 + 4, + .vdisplay = 480, + .vsync_start = 480 + 3, + .vsync_end = 480 + 3 + 1, + .vtotal = 480 + 3 + 1 + 4, + .vrefresh = 60, + .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, + .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, +}; + +static int nl8048_get_modes(struct drm_panel *panel) +{ + struct drm_connector *connector = panel->connector; + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(panel->drm, &nl8048_mode); + if (!mode) + return -ENOMEM; + + drm_mode_set_name(mode); + drm_mode_probed_add(connector, mode); + + connector->display_info.width_mm = 89; + connector->display_info.height_mm = 53; + connector->display_info.bus_flags = DRM_BUS_FLAG_DE_HIGH + | DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE + | DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE; + + return 1; +} + +static const struct drm_panel_funcs nl8048_funcs = { + .disable = nl8048_disable, + .enable = nl8048_enable, + .get_modes = nl8048_get_modes, +}; + +#ifdef CONFIG_PM_SLEEP +static int nl8048_suspend(struct device *dev) +{ + struct nl8048_device *lcd = dev_get_drvdata(dev); + + nl8048_write(lcd, 2, 0x01); + msleep(40); + + return 0; +} + +static int nl8048_resume(struct device *dev) +{ + struct nl8048_device *lcd = dev_get_drvdata(dev); + + /* Reinitialize the panel. */ + spi_setup(lcd->spi); + nl8048_write(lcd, 2, 0x00); + nl8048_init(lcd); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(nl8048_pm_ops, nl8048_suspend, nl8048_resume); +#endif + +static int nl8048_probe(struct spi_device *spi) +{ + struct nl8048_device *lcd; + int ret; + + lcd = devm_kzalloc(&spi->dev, sizeof(*lcd), GFP_KERNEL); + if (lcd == NULL) + return -ENOMEM; + + spi_set_drvdata(spi, lcd); + lcd->spi = spi; + + lcd->reset_gpio = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(lcd->reset_gpio)) { + dev_err(&spi->dev, "failed to parse reset gpio\n"); + return PTR_ERR(lcd->reset_gpio); + } + + spi->mode = SPI_MODE_0; + spi->bits_per_word = 32; + + ret = spi_setup(spi); + if (ret < 0) { + dev_err(&spi->dev, "failed to setup SPI: %d\n", ret); + return ret; + } + + ret = nl8048_init(lcd); + if (ret < 0) + return ret; + + drm_panel_init(&lcd->panel); + lcd->panel.dev = &lcd->spi->dev; + lcd->panel.funcs = &nl8048_funcs; + + return drm_panel_add(&lcd->panel); +} + +static int nl8048_remove(struct spi_device *spi) +{ + struct nl8048_device *lcd = spi_get_drvdata(spi); + + drm_panel_remove(&lcd->panel); + nl8048_disable(&lcd->panel); + + return 0; +} + +static const struct of_device_id nl8048_of_match[] = { + { .compatible = "nec,nl8048hl11", }, + {}, +}; + +MODULE_DEVICE_TABLE(of, nl8048_of_match); + +static struct spi_driver nl8048_driver = { + .probe = nl8048_probe, + .remove = nl8048_remove, + .driver = { + .name = "panel-nec-nl8048hl11", +#ifdef CONFIG_PM_SLEEP + .pm = &nl8048_pm_ops, +#endif + .of_match_table = nl8048_of_match, + }, +}; + +module_spi_driver(nl8048_driver); + +MODULE_ALIAS("spi:nec,nl8048hl11"); +MODULE_AUTHOR("Erik Gilling "); +MODULE_DESCRIPTION("NEC-NL8048HL11 Driver"); +MODULE_LICENSE("GPL");