From patchwork Sat Mar 6 14:16:47 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Y, Kishore" X-Patchwork-Id: 83907 X-Patchwork-Delegate: tomi.valkeinen@nokia.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o26EFDwo021515 for ; Sat, 6 Mar 2010 14:16:39 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753117Ab0CFOQi (ORCPT ); Sat, 6 Mar 2010 09:16:38 -0500 Received: from arroyo.ext.ti.com ([192.94.94.40]:46469 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753109Ab0CFOQh convert rfc822-to-8bit (ORCPT ); Sat, 6 Mar 2010 09:16:37 -0500 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id o26EGXRk020728 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 6 Mar 2010 08:16:35 -0600 Received: from dbde71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id o26EGVWQ028003; Sat, 6 Mar 2010 19:46:32 +0530 (IST) Received: from dbde02.ent.ti.com ([172.24.170.145]) by dbde71.ent.ti.com ([172.24.170.149]) with mapi; Sat, 6 Mar 2010 19:46:31 +0530 From: "Y, Kishore" To: Tomi Valkeinen CC: "linux-omap@vger.kernel.org" Date: Sat, 6 Mar 2010 19:46:47 +0530 Subject: [PATCH V4] OMAP: DSS: Add NEC NL8048HL11-01B display panel Thread-Topic: [PATCH V4] OMAP: DSS: Add NEC NL8048HL11-01B display panel Thread-Index: Acq9N6hiunhu4VBSSHOyLU0kGwUuew== Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 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 (demeter.kernel.org [140.211.167.41]); Sat, 06 Mar 2010 14:16:39 +0000 (UTC) diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig index dfb57ee..5fb4dfe 100644 --- a/drivers/video/omap2/displays/Kconfig +++ b/drivers/video/omap2/displays/Kconfig @@ -37,4 +37,10 @@ config PANEL_TPO_TD043MTEA1 help LCD Panel used in OMAP3 Pandora +config PANEL_NEC_NL8048HL11_01B + tristate "NEC NL8048HL11-01B Panel support" + depends on OMAP2_DSS + help + LCD Panel from NEC. + endmenu diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile index e2bb321..03eb9c2 100644 --- a/drivers/video/omap2/displays/Makefile +++ b/drivers/video/omap2/displays/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_PANEL_SHARP_LQ043T1DG01) += panel-sharp-lq043t1dg01.o obj-$(CONFIG_PANEL_TAAL) += panel-taal.o obj-$(CONFIG_PANEL_TOPPOLY_TDO35S) += panel-toppoly-tdo35s.o obj-$(CONFIG_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o +obj-$(CONFIG_PANEL_NEC_NL8048HL11_01B) += panel-nec-nl8048hl11-01b.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..6fdcf1a --- /dev/null +++ b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c @@ -0,0 +1,281 @@ +/* + * NEC panel support + * + * Copyright (C) 2010 Texas Instruments 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 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 + +#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 + +/* 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_panel_probe(struct omap_dss_device *dssdev) +{ + 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; + dssdev->panel.recommended_bpp = 16; + + return 0; +} + +static void nec_8048_panel_remove(struct omap_dss_device *dssdev) +{ +} + +static int nec_8048_panel_enable(struct omap_dss_device *dssdev) +{ + int r = 0; + + /* Delay recommended by panel DATASHEET */ + mdelay(4); + if (dssdev->platform_enable) + r = dssdev->platform_enable(dssdev); + + return r; +} + +static void nec_8048_panel_disable(struct omap_dss_device *dssdev) +{ + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); + /* Delay recommended by panel DATASHEET */ + mdelay(4); +} + +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 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, + + .driver = { + .name = "NEC_8048_panel", + .owner = THIS_MODULE, + }, +}; + +static int +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) { + printk(KERN_ERR "error in spi_write %x\n", data); + return ret; + } + + /* Delay, part of init seqence recommended by panel DATASHEET */ + udelay(10); + return 0; +} + +static int init_nec_8048_wvga_lcd(struct spi_device *spi) +{ + /* Initialization Sequence */ + /* spi_send(spi, REG, VAL) */ + spi_send(spi, 3, 0x01); + spi_send(spi, 0, 0x00); + spi_send(spi, 1, 0x01); /* R1 = 0x01 (normal), 0x03 (reversed) */ + spi_send(spi, 4, 0x00); + spi_send(spi, 5, 0x14); + spi_send(spi, 6, 0x24); + spi_send(spi, 16, 0xD7); + spi_send(spi, 17, 0x00); + spi_send(spi, 18, 0x00); + spi_send(spi, 19, 0x55); + spi_send(spi, 20, 0x01); + spi_send(spi, 21, 0x70); + spi_send(spi, 22, 0x1E); + spi_send(spi, 23, 0x25); + spi_send(spi, 24, 0x25); + spi_send(spi, 25, 0x02); + spi_send(spi, 26, 0x02); + spi_send(spi, 27, 0xA0); + spi_send(spi, 32, 0x2F); + spi_send(spi, 33, 0x0F); + spi_send(spi, 34, 0x0F); + spi_send(spi, 35, 0x0F); + spi_send(spi, 36, 0x0F); + spi_send(spi, 37, 0x0F); + spi_send(spi, 38, 0x0F); + spi_send(spi, 39, 0x00); + spi_send(spi, 40, 0x02); + spi_send(spi, 41, 0x02); + spi_send(spi, 42, 0x02); + spi_send(spi, 43, 0x0F); + spi_send(spi, 44, 0x0F); + spi_send(spi, 45, 0x0F); + spi_send(spi, 46, 0x0F); + spi_send(spi, 47, 0x0F); + spi_send(spi, 48, 0x0F); + spi_send(spi, 49, 0x0F); + spi_send(spi, 50, 0x00); + spi_send(spi, 51, 0x02); + spi_send(spi, 52, 0x02); + spi_send(spi, 53, 0x02); + spi_send(spi, 80, 0x0C); + spi_send(spi, 83, 0x42); + spi_send(spi, 84, 0x42); + spi_send(spi, 85, 0x41); + spi_send(spi, 86, 0x14); + spi_send(spi, 89, 0x88); + spi_send(spi, 90, 0x01); + spi_send(spi, 91, 0x00); + spi_send(spi, 92, 0x02); + spi_send(spi, 93, 0x0C); + spi_send(spi, 94, 0x1C); + spi_send(spi, 95, 0x27); + spi_send(spi, 98, 0x49); + spi_send(spi, 99, 0x27); + spi_send(spi, 102, 0x76); + spi_send(spi, 103, 0x27); + spi_send(spi, 112, 0x01); + spi_send(spi, 113, 0x0E); + spi_send(spi, 114, 0x02); + spi_send(spi, 115, 0x0C); + spi_send(spi, 118, 0x0C); + spi_send(spi, 121, 0x30); /* R121 = 0x30 (normal), 0x10 (reversed) */ + spi_send(spi, 130, 0x00); + spi_send(spi, 131, 0x00); + spi_send(spi, 132, 0xFC); + spi_send(spi, 134, 0x00); + spi_send(spi, 136, 0x00); + spi_send(spi, 138, 0x00); + spi_send(spi, 139, 0x00); + spi_send(spi, 140, 0x00); + spi_send(spi, 141, 0xFC); + spi_send(spi, 143, 0x00); + spi_send(spi, 145, 0x00); + spi_send(spi, 147, 0x00); + spi_send(spi, 148, 0x00); + spi_send(spi, 149, 0x00); + spi_send(spi, 150, 0xFC); + spi_send(spi, 152, 0x00); + spi_send(spi, 154, 0x00); + spi_send(spi, 156, 0x00); + spi_send(spi, 157, 0x00); + udelay(20); + spi_send(spi, 2, 0x00); + + 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) +{ + 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); + 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_LICENSE("GPL"); +