From patchwork Tue Nov 9 17:12:02 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bryan Wu X-Patchwork-Id: 311632 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 oA9HCoYd019099 for ; Tue, 9 Nov 2010 17:12:50 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753665Ab0KIRMT (ORCPT ); Tue, 9 Nov 2010 12:12:19 -0500 Received: from mail-vw0-f46.google.com ([209.85.212.46]:56806 "EHLO mail-vw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752658Ab0KIRMR (ORCPT ); Tue, 9 Nov 2010 12:12:17 -0500 Received: by vws13 with SMTP id 13so3401736vws.19 for ; Tue, 09 Nov 2010 09:12:16 -0800 (PST) Received: by 10.229.246.145 with SMTP id ly17mr6849018qcb.11.1289322735063; Tue, 09 Nov 2010 09:12:15 -0800 (PST) Received: from roc-laptop (bismuth.canonical.com [209.6.3.210]) by mx.google.com with ESMTPS id k15sm1160353qcu.47.2010.11.09.09.12.13 (version=SSLv3 cipher=RC4-MD5); Tue, 09 Nov 2010 09:12:13 -0800 (PST) From: Bryan Wu To: tomi.valkeinen@nokia.com, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, gadiyar@ti.com Subject: [PATCH 1/3] OMAP: DSS2: Add generic DPI panel display driver Date: Tue, 9 Nov 2010 12:12:02 -0500 Message-Id: <1289322724-20998-2-git-send-email-bryan.wu@canonical.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1289322724-20998-1-git-send-email-bryan.wu@canonical.com> References: <1289322724-20998-1-git-send-email-bryan.wu@canonical.com> 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, 09 Nov 2010 17:12:50 +0000 (UTC) diff --git a/arch/arm/plat-omap/include/plat/panel-generic-dpi.h b/arch/arm/plat-omap/include/plat/panel-generic-dpi.h new file mode 100644 index 0000000..7906197 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/panel-generic-dpi.h @@ -0,0 +1,37 @@ +/* + * Header for generic DPI panel driver + * + * Copyright (C) 2010 Canonical Ltd. + * Author: Bryan Wu + * + * 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 . + */ + +#ifndef __ARCH_ARM_PLAT_OMAP_PANEL_GENERIC_DPI_H +#define __ARCH_ARM_PLAT_OMAP_PANEL_GENERIC_DPI_H + +#include "display.h" + +/** + * struct panel_generic_dpi_data - panel driver configuration data + * @name: panel name + * @platform_enable: platform specific panel enable function + * @platform_disable: platform specific panel disable function + */ +struct panel_generic_dpi_data { + const char *name; + int (*platform_enable)(struct omap_dss_device *dssdev); + void (*platform_disable)(struct omap_dss_device *dssdev); +}; + +#endif /* __ARCH_ARM_PLAT_OMAP_PANEL_GENERIC_DPI_H */ diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig index 12327bb..cb3e339 100644 --- a/drivers/video/omap2/displays/Kconfig +++ b/drivers/video/omap2/displays/Kconfig @@ -1,6 +1,14 @@ menu "OMAP2/3 Display Device Drivers" depends on OMAP2_DSS +config PANEL_GENERIC_DPI + tristate "Generic DPI Panel" + help + Generic DPI panel driver. + Supports DVI output for Beagle and OMAP3 SDP. + Supports LCD Panel used in TI SDP3430 and EVM boards, + OMAP3517 EVM boards and CM-T35. + config PANEL_GENERIC tristate "Generic Panel" help diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile index aa38609..022058c 100644 --- a/drivers/video/omap2/displays/Makefile +++ b/drivers/video/omap2/displays/Makefile @@ -1,3 +1,4 @@ +obj-$(CONFIG_PANEL_GENERIC_DPI) += panel-generic-dpi.o obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o obj-$(CONFIG_PANEL_SHARP_LQ043T1DG01) += panel-sharp-lq043t1dg01.o diff --git a/drivers/video/omap2/displays/panel-generic-dpi.c b/drivers/video/omap2/displays/panel-generic-dpi.c new file mode 100644 index 0000000..7ddd631 --- /dev/null +++ b/drivers/video/omap2/displays/panel-generic-dpi.c @@ -0,0 +1,309 @@ +/* + * Generic DPI Panels support + * + * Copyright (C) 2010 Canonical Ltd. + * Author: Bryan Wu + * + * Copyright (C) 2008 Nokia Corporation + * Author: Tomi Valkeinen + * + * 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 + +struct panel_config { + struct omap_video_timings timings; + + int acbi; /* ac-bias pin transitions per interrupt */ + /* Unit: line clocks */ + int acb; /* ac-bias pin frequency */ + + enum omap_panel_config config; + + /* + * Used to match device to panel configuration + * when use generic panel driver + */ + const char *name; +}; + +/* Panel configurations */ +static struct panel_config generic_dpi_panels[] = { + /* Generic Panel */ + { + { + .x_res = 640, + .y_res = 480, + + .pixel_clock = 23500, + + .hfp = 48, + .hsw = 32, + .hbp = 80, + + .vfp = 3, + .vsw = 4, + .vbp = 7, + }, + .acbi = 0x0, + .acb = 0x0, + .config = OMAP_DSS_LCD_TFT, + .name = "generic", + }, + + /* Sharp LQ043T1DG01 */ + { + { + .x_res = 480, + .y_res = 272, + + .pixel_clock = 9000, + + .hsw = 42, + .hfp = 3, + .hbp = 2, + + .vsw = 11, + .vfp = 3, + .vbp = 2, + }, + .acbi = 0x0, + .acb = 0x0, + .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO, + .name = "sharp_lq", + }, + + /* Sharp LS037V7DW01 */ + { + { + .x_res = 480, + .y_res = 640, + + .pixel_clock = 19200, + + .hsw = 2, + .hfp = 1, + .hbp = 28, + + .vsw = 1, + .vfp = 1, + .vbp = 1, + }, + .acbi = 0x0, + .acb = 0x28, + .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS, + .name = "sharp_ls", + }, + + /* Toppoly TDO35S */ + { + { + .x_res = 480, + .y_res = 640, + + .pixel_clock = 26000, + + .hfp = 104, + .hsw = 8, + .hbp = 8, + + .vfp = 4, + .vsw = 2, + .vbp = 2, + }, + .acbi = 0x0, + .acb = 0x0, + .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC | + OMAP_DSS_LCD_ONOFF, + .name = "toppoly_tdo35s", + }, +}; + +static inline struct panel_generic_dpi_data +*get_panel_data(const struct omap_dss_device *dssdev) +{ + return (struct panel_generic_dpi_data *) dssdev->data; +} + + +static int generic_dpi_panel_power_on(struct omap_dss_device *dssdev) +{ + int r; + struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); + + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) + return 0; + + r = omapdss_dpi_display_enable(dssdev); + if (r) + goto err0; + + if (panel_data->platform_enable) { + r = panel_data->platform_enable(dssdev); + if (r) + goto err1; + } + + return 0; +err1: + omapdss_dpi_display_disable(dssdev); +err0: + return r; +} + +static void generic_dpi_panel_power_off(struct omap_dss_device *dssdev) +{ + struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) + return; + + if (panel_data->platform_disable) + panel_data->platform_disable(dssdev); + + omapdss_dpi_display_disable(dssdev); +} + +static int generic_dpi_panel_probe(struct omap_dss_device *dssdev) +{ + struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev); + struct panel_config *panel_config = NULL; + int i; + + dev_dbg(&dssdev->dev, "probe\n"); + + if (!panel_data || !panel_data->name) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(generic_dpi_panels); i++) { + if (strcmp(panel_data->name, generic_dpi_panels[i].name) == 0) { + panel_config = &generic_dpi_panels[i]; + break; + } + } + + if (!panel_config) + return -EINVAL; + + dssdev->type = OMAP_DISPLAY_TYPE_DPI; + dssdev->panel.config = panel_config->config; + dssdev->panel.timings = panel_config->timings; + dssdev->panel.acb = panel_config->acb; + dssdev->panel.acbi = panel_config->acbi; + + return 0; +} + +static void generic_dpi_panel_remove(struct omap_dss_device *dssdev) +{ +} + +static int generic_dpi_panel_enable(struct omap_dss_device *dssdev) +{ + int r = 0; + + r = generic_dpi_panel_power_on(dssdev); + if (r) + return r; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + return 0; +} + +static void generic_dpi_panel_disable(struct omap_dss_device *dssdev) +{ + generic_dpi_panel_power_off(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; +} + +static int generic_dpi_panel_suspend(struct omap_dss_device *dssdev) +{ + generic_dpi_panel_power_off(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; + + return 0; +} + +static int generic_dpi_panel_resume(struct omap_dss_device *dssdev) +{ + int r = 0; + + r = generic_dpi_panel_power_on(dssdev); + if (r) + return r; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + return 0; +} + +static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + dpi_set_timings(dssdev, timings); +} + +static void generic_dpi_panel_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + *timings = dssdev->panel.timings; +} + +static int generic_dpi_panel_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + return dpi_check_timings(dssdev, timings); +} + +static struct omap_dss_driver dpi_driver = { + .probe = generic_dpi_panel_probe, + .remove = generic_dpi_panel_remove, + + .enable = generic_dpi_panel_enable, + .disable = generic_dpi_panel_disable, + .suspend = generic_dpi_panel_suspend, + .resume = generic_dpi_panel_resume, + + .set_timings = generic_dpi_panel_set_timings, + .get_timings = generic_dpi_panel_get_timings, + .check_timings = generic_dpi_panel_check_timings, + + .driver = { + .name = "generic_dpi_panel", + .owner = THIS_MODULE, + }, +}; + +static int __init generic_dpi_panel_drv_init(void) +{ + return omap_dss_register_driver(&dpi_driver); +} + +static void __exit generic_dpi_panel_drv_exit(void) +{ + omap_dss_unregister_driver(&dpi_driver); +} + +module_init(generic_dpi_panel_drv_init); +module_exit(generic_dpi_panel_drv_exit); +MODULE_LICENSE("GPL");