Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759871AbZFXLkx (ORCPT ); Wed, 24 Jun 2009 07:40:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757835AbZFXLgo (ORCPT ); Wed, 24 Jun 2009 07:36:44 -0400 Received: from smtp.nokia.com ([192.100.122.230]:52727 "EHLO mgw-mx03.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756737AbZFXLgl (ORCPT ); Wed, 24 Jun 2009 07:36:41 -0400 From: Imre Deak To: Andrew Morton Cc: linux-kernel@vger.kernel.org, Krzysztof Helt , Antonino Daplas , Tony Lindgren , Tomi Valkeinen Subject: [PATCH 07/20] omapfb: Add support for the OMAP3 EVM LCD Date: Wed, 24 Jun 2009 14:33:32 +0300 Message-Id: X-Mailer: git-send-email 1.6.3.2 In-Reply-To: <0e2b7b0555c657a8eab00df0091b9828fb292f4c.1245842329.git.imre.deak@nokia.com> References: <1245843225-1036-1-git-send-email-imre.deak@nokia.com> <34904fad6190ff9d35eb942460ece639f4b7d58f.1245842329.git.imre.deak@nokia.com> <5cf7e298c3b70ad6e07d34034cc901689445e978.1245842329.git.imre.deak@nokia.com> <9cecdc5077b72042551eb8e3dc96911e9f4fa3fd.1245842329.git.imre.deak@nokia.com> <0e2b7b0555c657a8eab00df0091b9828fb292f4c.1245842329.git.imre.deak@nokia.com> In-Reply-To: <34904fad6190ff9d35eb942460ece639f4b7d58f.1245842329.git.imre.deak@nokia.com> References: <34904fad6190ff9d35eb942460ece639f4b7d58f.1245842329.git.imre.deak@nokia.com> X-OriginalArrivalTime: 24 Jun 2009 11:36:01.0497 (UTC) FILETIME=[F3527C90:01C9F4BF] X-Nokia-AV: Clean Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6921 Lines: 237 From: Steve Sakoman Add LCD support for OMAP3 EVM Backlight support by Arun C Fixed-by: Jarkko Nikula Fixed-by: David Brownell Signed-off-by: Steve Sakoman Acked-by: Syed Mohammed Khasim Signed-off-by: Tony Lindgren Signed-off-by: Imre Deak Acked-by: Krzysztof Helt --- drivers/video/omap/Makefile | 1 + drivers/video/omap/lcd_omap3evm.c | 192 +++++++++++++++++++++++++++++++++++++ 2 files changed, 193 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap/lcd_omap3evm.c diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile index 96d2d43..4345157 100644 --- a/drivers/video/omap/Makefile +++ b/drivers/video/omap/Makefile @@ -30,6 +30,7 @@ objs-y$(CONFIG_MACH_OMAP_APOLLON) += lcd_apollon.o objs-y$(CONFIG_MACH_OMAP_2430SDP) += lcd_2430sdp.o objs-y$(CONFIG_MACH_OMAP_3430SDP) += lcd_2430sdp.o objs-y$(CONFIG_MACH_OMAP2EVM) += lcd_omap2evm.o +objs-y$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o omapfb-objs := $(objs-yy) diff --git a/drivers/video/omap/lcd_omap3evm.c b/drivers/video/omap/lcd_omap3evm.c new file mode 100644 index 0000000..b6a4c2c --- /dev/null +++ b/drivers/video/omap/lcd_omap3evm.c @@ -0,0 +1,192 @@ +/* + * LCD panel support for the TI OMAP3 EVM board + * + * Author: Steve Sakoman + * + * Derived from drivers/video/omap/lcd-apollon.c + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * 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, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include +#include +#include +#include + +#include +#include +#include + +#define LCD_PANEL_ENABLE_GPIO 153 +#define LCD_PANEL_LR 2 +#define LCD_PANEL_UD 3 +#define LCD_PANEL_INI 152 +#define LCD_PANEL_QVGA 154 +#define LCD_PANEL_RESB 155 + +#define ENABLE_VDAC_DEDICATED 0x03 +#define ENABLE_VDAC_DEV_GRP 0x20 +#define ENABLE_VPLL2_DEDICATED 0x05 +#define ENABLE_VPLL2_DEV_GRP 0xE0 + +#define TWL_LED_LEDEN 0x00 +#define TWL_PWMA_PWMAON 0x00 +#define TWL_PWMA_PWMAOFF 0x01 + +static unsigned int bklight_level; + +static int omap3evm_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + gpio_request(LCD_PANEL_LR, "LCD lr"); + gpio_request(LCD_PANEL_UD, "LCD ud"); + gpio_request(LCD_PANEL_INI, "LCD ini"); + gpio_request(LCD_PANEL_RESB, "LCD resb"); + gpio_request(LCD_PANEL_QVGA, "LCD qvga"); + + gpio_direction_output(LCD_PANEL_RESB, 1); + gpio_direction_output(LCD_PANEL_INI, 1); + gpio_direction_output(LCD_PANEL_QVGA, 0); + gpio_direction_output(LCD_PANEL_LR, 1); + gpio_direction_output(LCD_PANEL_UD, 1); + + twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN); + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON); + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF); + bklight_level = 100; + + return 0; +} + +static void omap3evm_panel_cleanup(struct lcd_panel *panel) +{ + gpio_free(LCD_PANEL_QVGA); + gpio_free(LCD_PANEL_RESB); + gpio_free(LCD_PANEL_INI); + gpio_free(LCD_PANEL_UD); + gpio_free(LCD_PANEL_LR); +} + +static int omap3evm_panel_enable(struct lcd_panel *panel) +{ + gpio_set_value(LCD_PANEL_ENABLE_GPIO, 0); + return 0; +} + +static void omap3evm_panel_disable(struct lcd_panel *panel) +{ + gpio_set_value(LCD_PANEL_ENABLE_GPIO, 1); +} + +static unsigned long omap3evm_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +static int omap3evm_bklight_setlevel(struct lcd_panel *panel, + unsigned int level) +{ + u8 c; + if ((level >= 0) && (level <= 100)) { + c = (125 * (100 - level)) / 100 + 2; + twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, c, TWL_PWMA_PWMAOFF); + bklight_level = level; + } + return 0; +} + +static unsigned int omap3evm_bklight_getlevel(struct lcd_panel *panel) +{ + return bklight_level; +} + +static unsigned int omap3evm_bklight_getmaxlevel(struct lcd_panel *panel) +{ + return 100; +} + +struct lcd_panel omap3evm_panel = { + .name = "omap3evm", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC, + + .bpp = 16, + .data_lines = 18, + .x_res = 480, + .y_res = 640, + .hsw = 3, /* hsync_len (4) - 1 */ + .hfp = 3, /* right_margin (4) - 1 */ + .hbp = 39, /* left_margin (40) - 1 */ + .vsw = 1, /* vsync_len (2) - 1 */ + .vfp = 2, /* lower_margin */ + .vbp = 7, /* upper_margin (8) - 1 */ + + .pixel_clock = 26000, + + .init = omap3evm_panel_init, + .cleanup = omap3evm_panel_cleanup, + .enable = omap3evm_panel_enable, + .disable = omap3evm_panel_disable, + .get_caps = omap3evm_panel_get_caps, + .set_bklight_level = omap3evm_bklight_setlevel, + .get_bklight_level = omap3evm_bklight_getlevel, + .get_bklight_max = omap3evm_bklight_getmaxlevel, +}; + +static int omap3evm_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&omap3evm_panel); + return 0; +} + +static int omap3evm_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int omap3evm_panel_suspend(struct platform_device *pdev, + pm_message_t mesg) +{ + return 0; +} + +static int omap3evm_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver omap3evm_panel_driver = { + .probe = omap3evm_panel_probe, + .remove = omap3evm_panel_remove, + .suspend = omap3evm_panel_suspend, + .resume = omap3evm_panel_resume, + .driver = { + .name = "omap3evm_lcd", + .owner = THIS_MODULE, + }, +}; + +static int __init omap3evm_panel_drv_init(void) +{ + return platform_driver_register(&omap3evm_panel_driver); +} + +static void __exit omap3evm_panel_drv_exit(void) +{ + platform_driver_unregister(&omap3evm_panel_driver); +} + +module_init(omap3evm_panel_drv_init); +module_exit(omap3evm_panel_drv_exit); -- 1.6.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/