From patchwork Tue Oct 26 03:12:36 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Samreen X-Patchwork-Id: 281482 X-Patchwork-Delegate: tomi.valkeinen@nokia.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o9Q3I6Bn028407 for ; Tue, 26 Oct 2010 03:18:07 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756432Ab0JZDSA (ORCPT ); Mon, 25 Oct 2010 23:18:00 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:33880 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753989Ab0JZDR7 (ORCPT ); Mon, 25 Oct 2010 23:17:59 -0400 Received: from dlep35.itg.ti.com ([157.170.170.118]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id o9Q3HsoK027972 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 25 Oct 2010 22:17:54 -0500 Received: from legion.dal.design.ti.com (localhost [127.0.0.1]) by dlep35.itg.ti.com (8.13.7/8.13.7) with ESMTP id o9Q3HpWY001280; Mon, 25 Oct 2010 22:17:51 -0500 (CDT) Received: from localhost (graphicspc.apr.dhcp.ti.com [172.24.136.217]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id o9Q3Hlf00254; Mon, 25 Oct 2010 22:17:47 -0500 (CDT) From: Samreen To: Tomi Valkeinen , Grazvydas Ignotas , Vaibhav Hiremath , Roger Quadros , Mukund Mittal , Jarkko Nikula Cc: linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org, Erik Gilling , Mukund Mittal , Rajkumar N , Samreen , Subbu Venkatesh Subject: [PATCH v3] OMAP: DSS2: Add NEC NL8048HL11-01B display panel Date: Tue, 26 Oct 2010 08:42:36 +0530 Message-Id: <1288062756-8832-1-git-send-email-samreen@ti.com> X-Mailer: git-send-email 1.5.6.3 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Tue, 26 Oct 2010 03:18:07 +0000 (UTC) diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig index 12327bb..f8152cf 100644 --- a/drivers/video/omap2/displays/Kconfig +++ b/drivers/video/omap2/displays/Kconfig @@ -20,6 +20,13 @@ config PANEL_SHARP_LQ043T1DG01 help LCD Panel used in TI's OMAP3517 EVM boards +config PANEL_NEC_NL8048HL11_01B + tristate "NEC NL8048HL11-01B Panel" + depends on OMAP2_DSS + help + This NEC NL8048HL11-01B panel is TFT LCD + used in the Zoom2/3/3630 sdp boards. + config PANEL_TAAL tristate "Taal DSI Panel" depends on OMAP2_DSS_DSI diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile index aa38609..8ece91c 100644 --- a/drivers/video/omap2/displays/Makefile +++ b/drivers/video/omap2/displays/Makefile @@ -1,6 +1,7 @@ obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o obj-$(CONFIG_PANEL_SHARP_LQ043T1DG01) += panel-sharp-lq043t1dg01.o +obj-$(CONFIG_PANEL_NEC_NL8048HL11_01B) += panel-nec-nl8048hl11-01b.o obj-$(CONFIG_PANEL_TAAL) += panel-taal.o obj-$(CONFIG_PANEL_TOPPOLY_TDO35S) += panel-toppoly-tdo35s.o diff --git a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c new file mode 100644 index 0000000..925e0fa --- /dev/null +++ b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c @@ -0,0 +1,325 @@ +/* + * Support for NEC-nl8048hl11-01b panel driver + * + * Copyright (C) 2010 Texas Instruments Inc. + * Author: Erik Gilling + * 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 program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include +#include +#include +#include +#include + +#include + +#define LCD_XRES 800 +#define LCD_YRES 480 +/* + * NEC PIX Clock Ratings + * MIN:21.8MHz TYP:23.8MHz MAX:25.7MHz + */ +#define LCD_PIXEL_CLOCK 23800 + +struct nec_8048_data { + struct backlight_device *bl; +}; + +static const struct { + unsigned char addr; + unsigned char dat; +} nec_8048_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 }, { 2, 0x00 }, +}; + +/* + * NEC NL8048HL11-01B Manual + * defines HFB, HSW, HBP, VFP, VSW, VBP as shown below + */ + +static struct omap_video_timings nec_8048_panel_timings = { + /* 800 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */ + .x_res = LCD_XRES, + .y_res = LCD_YRES, + .pixel_clock = LCD_PIXEL_CLOCK, + .hfp = 6, + .hsw = 1, + .hbp = 4, + .vfp = 3, + .vsw = 1, + .vbp = 4, +}; + +static int nec_8048_bl_update_status(struct backlight_device *bl) +{ + struct omap_dss_device *dssdev = dev_get_drvdata(&bl->dev); + int level; + + if (!dssdev->set_backlight) + return -EINVAL; + + if (bl->props.fb_blank == FB_BLANK_UNBLANK && + bl->props.power == FB_BLANK_UNBLANK) + level = bl->props.brightness; + else + level = 0; + + return dssdev->set_backlight(dssdev, level); +} + +static int nec_8048_bl_get_brightness(struct backlight_device *bl) +{ + if (bl->props.fb_blank == FB_BLANK_UNBLANK && + bl->props.power == FB_BLANK_UNBLANK) + return bl->props.brightness; + + return 0; +} + +static const struct backlight_ops nec_8048_bl_ops = { + .get_brightness = nec_8048_bl_get_brightness, + .update_status = nec_8048_bl_update_status, +}; + +static int nec_8048_panel_probe(struct omap_dss_device *dssdev) +{ + struct backlight_device *bl; + struct nec_8048_data *necd; + struct backlight_properties props; + int r; + + dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_RF | + OMAP_DSS_LCD_ONOFF; + dssdev->panel.timings = nec_8048_panel_timings; + + necd = kzalloc(sizeof(*necd), GFP_KERNEL); + if (!necd) + return -ENOMEM; + + dev_set_drvdata(&dssdev->dev, necd); + + memset(&props, 0, sizeof(struct backlight_properties)); + props.max_brightness = 255; + + bl = backlight_device_register("nec-8048", &dssdev->dev, dssdev, + &nec_8048_bl_ops, &props); + if (IS_ERR(bl)) { + r = PTR_ERR(bl); + kfree(necd); + return r; + } + necd->bl = bl; + + bl->props.fb_blank = FB_BLANK_UNBLANK; + bl->props.power = FB_BLANK_UNBLANK; + bl->props.max_brightness = dssdev->max_backlight_level; + bl->props.brightness = dssdev->max_backlight_level; + + r = nec_8048_bl_update_status(bl); + if (r < 0) + dev_err(&dssdev->dev, "failed to set lcd brightness\n"); + + return 0; +} + +static void nec_8048_panel_remove(struct omap_dss_device *dssdev) +{ + struct nec_8048_data *necd = dev_get_drvdata(&dssdev->dev); + struct backlight_device *bl = necd->bl; + + bl->props.power = FB_BLANK_POWERDOWN; + nec_8048_bl_update_status(bl); + backlight_device_unregister(bl); + + kfree(necd); +} + +static int nec_8048_panel_enable(struct omap_dss_device *dssdev) +{ + int r = 0; + struct nec_8048_data *necd = dev_get_drvdata(&dssdev->dev); + struct backlight_device *bl = necd->bl; + + if (dssdev->platform_enable) { + r = dssdev->platform_enable(dssdev); + if (r) + return r; + } + + r = nec_8048_bl_update_status(bl); + if (r < 0) + dev_err(&dssdev->dev, "failed to set lcd brightness\n"); + + r = omapdss_dpi_display_enable(dssdev); + + return r; +} + +static void nec_8048_panel_disable(struct omap_dss_device *dssdev) +{ + struct nec_8048_data *necd = dev_get_drvdata(&dssdev->dev); + struct backlight_device *bl = necd->bl; + + omapdss_dpi_display_disable(dssdev); + + bl->props.brightness = 0; + nec_8048_bl_update_status(bl); + + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); +} + +static int nec_8048_panel_suspend(struct omap_dss_device *dssdev) +{ + nec_8048_panel_disable(dssdev); + return 0; +} + +static int nec_8048_panel_resume(struct omap_dss_device *dssdev) +{ + return nec_8048_panel_enable(dssdev); +} + +static int nec_8048_recommended_bpp(struct omap_dss_device *dssdev) +{ + return 16; +} + +static struct omap_dss_driver nec_8048_driver = { + .probe = nec_8048_panel_probe, + .remove = nec_8048_panel_remove, + .enable = nec_8048_panel_enable, + .disable = nec_8048_panel_disable, + .suspend = nec_8048_panel_suspend, + .resume = nec_8048_panel_resume, + .get_recommended_bpp = nec_8048_recommended_bpp, + + .driver = { + .name = "NEC_8048_panel", + .owner = THIS_MODULE, + }, +}; + +static int nec_8048_spi_send(struct spi_device *spi, unsigned char reg_addr, + unsigned char reg_data) +{ + int ret = 0; + unsigned int cmd = 0, data = 0; + + cmd = 0x0000 | reg_addr; /* register address write */ + data = 0x0100 | reg_data ; /* register data write */ + data = (cmd << 16) | data; + + ret = spi_write(spi, (unsigned char *)&data, 4); + if (ret) + pr_err("error in spi_write %x\n", data); + + return ret; +} + +static int init_nec_8048_wvga_lcd(struct spi_device *spi) +{ + unsigned int i; + /* Initialization Sequence */ + /* nec_8048_spi_send(spi, REG, VAL) */ + for (i = 0; i < (ARRAY_SIZE(nec_8048_init_seq) - 1); i++) + nec_8048_spi_send(spi, nec_8048_init_seq[i].addr, + nec_8048_init_seq[i].dat); + udelay(20); + nec_8048_spi_send(spi, nec_8048_init_seq[i].addr, + nec_8048_init_seq[i].dat); + return 0; +} + +static int nec_8048_spi_probe(struct spi_device *spi) +{ + spi->mode = SPI_MODE_0; + spi->bits_per_word = 32; + spi_setup(spi); + + init_nec_8048_wvga_lcd(spi); + + return omap_dss_register_driver(&nec_8048_driver); +} + +static int nec_8048_spi_remove(struct spi_device *spi) +{ + omap_dss_unregister_driver(&nec_8048_driver); + + return 0; +} + +static int nec_8048_spi_suspend(struct spi_device *spi, pm_message_t mesg) +{ + nec_8048_spi_send(spi, 2, 0x01); + mdelay(40); + + return 0; +} + +static int nec_8048_spi_resume(struct spi_device *spi) +{ + /* reinitialize the panel */ + spi_setup(spi); + nec_8048_spi_send(spi, 2, 0x00); + init_nec_8048_wvga_lcd(spi); + + return 0; +} + +static struct spi_driver nec_8048_spi_driver = { + .probe = nec_8048_spi_probe, + .remove = __devexit_p(nec_8048_spi_remove), + .suspend = nec_8048_spi_suspend, + .resume = nec_8048_spi_resume, + .driver = { + .name = "nec_8048_spi", + .bus = &spi_bus_type, + .owner = THIS_MODULE, + }, +}; + +static int __init nec_8048_lcd_init(void) +{ + return spi_register_driver(&nec_8048_spi_driver); +} + +static void __exit nec_8048_lcd_exit(void) +{ + return spi_unregister_driver(&nec_8048_spi_driver); +} + +module_init(nec_8048_lcd_init); +module_exit(nec_8048_lcd_exit); +MODULE_AUTHOR("Erik Gilling "); +MODULE_DESCRIPTION("NEC-nl8048hl11-01b Driver"); +MODULE_LICENSE("GPL");