OMAP_LDP: Support LCD display as a FB device on ZOOM MDK (Re: LDP support)

Message ID	20090506224917.GS5593@atomide.com (mailing list archive)
State	Superseded, archived
Headers	show Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n46MnZNv011645 for <patchwork-omap@patchwork.kernel.org>; Wed, 6 May 2009 22:49:35 GMT Date: Wed, 6 May 2009 15:49:18 -0700 From: Tony Lindgren <tony@atomide.com> To: Russell King - ARM Linux <linux@arm.linux.org.uk>, Stanley Miao <stanley.miao@windriver.com> Cc: linux-omap@vger.kernel.org, Imre Deak <imre.deak@nokia.com>, Tomi Valkeinen <tomi.valkeinen@nokia.com> Subject: [PATCH] OMAP_LDP: Support LCD display as a FB device on ZOOM MDK (Re: LDP support) Message-ID: <20090506224917.GS5593@atomide.com> References: <20090428220712.GF29277@n2100.arm.linux.org.uk> <20090428224237.GT22457@atomide.com> <20090505195231.GB8004@n2100.arm.linux.org.uk> <20090506040015.GM5593@atomide.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="WfZ7S8PLGjBY9Voh" Content-Disposition: inline In-Reply-To: <20090506040015.GM5593@atomide.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-omap-owner@vger.kernel.org Precedence: bulk

commit 6ceeed27b64fab326963a8a867c7549443e7536e Author: Stanley Miao <stanley.miao@windriver.com> Date: Wed May 6 15:09:35 2009 -0700 OMAP_LDP: Support LCD display as a FB device on ZOOM MDK Add glue to control the OMAP_LDP LCD as a frame buffer device using the existing dispc.c driver under omapfb. Patch updated for mainline kernel. Note that the drivers/video/omap should be updated to pass omap_lcd_config in platform_data. The patch should also be updated to compile if twl4030 is not selected, and eventually to use the regulator framework. Signed-off-by: Stanley.Miao <stanley.miao@windriver.com> Signed-off-by: Tony Lindgren <tony@atomide.com> diff --git a/arch/arm/configs/omap_ldp_defconfig b/arch/arm/configs/omap_ldp_defconfig index 679a4a3..8a979cd 100644 --- a/arch/arm/configs/omap_ldp_defconfig +++ b/arch/arm/configs/omap_ldp_defconfig @@ -685,11 +685,16 @@ CONFIG_GPIOLIB=y # CONFIG_GPIO_SYSFS is not set # +# Memory mapped GPIO expanders: +# + +# # I2C GPIO expanders: # # CONFIG_GPIO_MAX732X is not set # CONFIG_GPIO_PCA953X is not set # CONFIG_GPIO_PCF857X is not set +CONFIG_GPIO_TWL4030=y # # PCI GPIO expanders: @@ -740,12 +745,19 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_MFD_CORE is not set # CONFIG_MFD_SM501 is not set +# CONFIG_MFD_ASIC3 is not set # CONFIG_HTC_EGPIO is not set # CONFIG_HTC_PASIC3 is not set +# CONFIG_TPS65010 is not set +CONFIG_TWL4030_CORE=y # CONFIG_MFD_TMIO is not set # CONFIG_MFD_T7L66XB is not set # CONFIG_MFD_TC6387XB is not set # CONFIG_MFD_TC6393XB is not set +# CONFIG_PMIC_DA903X is not set +# CONFIG_MFD_WM8400 is not set +# CONFIG_MFD_WM8350_I2C is not set +# CONFIG_MFD_PCF50633 is not set # # Multimedia devices @@ -767,8 +779,45 @@ CONFIG_DAB=y # # CONFIG_VGASTATE is not set CONFIG_VIDEO_OUTPUT_CONTROL=m -# CONFIG_FB is not set -# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +CONFIG_FB=y +CONFIG_FIRMWARE_EDID=y +# CONFIG_FB_DDC is not set +# CONFIG_FB_BOOT_VESA_SUPPORT is not set +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set +# CONFIG_FB_SYS_FILLRECT is not set +# CONFIG_FB_SYS_COPYAREA is not set +# CONFIG_FB_SYS_IMAGEBLIT is not set +# CONFIG_FB_FOREIGN_ENDIAN is not set +# CONFIG_FB_SYS_FOPS is not set +# CONFIG_FB_SVGALIB is not set +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +CONFIG_FB_MODE_HELPERS=y +CONFIG_FB_TILEBLITTING=y + +# +# Frame buffer hardware drivers +# +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_VIRTUAL is not set +# CONFIG_FB_METRONOME is not set +CONFIG_FB_OMAP=y +CONFIG_FB_OMAP_LCD_VGA=y +# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set +# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set +CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=4 +CONFIG_BACKLIGHT_LCD_SUPPORT=y +CONFIG_LCD_CLASS_DEVICE=y +# CONFIG_LCD_LTV350QV is not set +# CONFIG_LCD_ILI9320 is not set +# CONFIG_LCD_TDO24M is not set +# CONFIG_LCD_VGG2432A4 is not set +CONFIG_LCD_PLATFORM=y +CONFIG_BACKLIGHT_CLASS_DEVICE=y +# CONFIG_BACKLIGHT_CORGI is not set # # Display device support @@ -780,6 +829,16 @@ CONFIG_VIDEO_OUTPUT_CONTROL=m # # CONFIG_VGA_CONSOLE is not set CONFIG_DUMMY_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +# CONFIG_FONTS is not set +CONFIG_FONT_8x8=y +CONFIG_FONT_8x16=y +CONFIG_LOGO=y +CONFIG_LOGO_LINUX_MONO=y +CONFIG_LOGO_LINUX_VGA16=y +CONFIG_LOGO_LINUX_CLUT224=y CONFIG_SOUND=y CONFIG_SND=y # CONFIG_SND_SEQUENCER is not set diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index da57b0f..abbbdfc 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -77,8 +77,14 @@ static struct platform_device ldp_smsc911x_device = { }, }; +static struct platform_device ldp_lcd_device = { + .name = "ldp_lcd", + .id = -1, +}; + static struct platform_device *ldp_devices[] __initdata = { &ldp_smsc911x_device, + &ldp_lcd_device, }; static inline void __init ldp_init_smsc911x(void) @@ -122,8 +128,13 @@ static struct omap_uart_config ldp_uart_config __initdata = { .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), }; +static struct omap_lcd_config ldp_lcd_config __initdata = { + .ctrl_name = "internal", +}; + static struct omap_board_config_kernel ldp_config[] __initdata = { { OMAP_TAG_UART, &ldp_uart_config }, + { OMAP_TAG_LCD, &ldp_lcd_config }, }; static struct twl4030_gpio_platform_data ldp_gpio_data = { diff --git a/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig index 4440885..6c86ec0 100644 --- a/drivers/video/omap/Kconfig +++ b/drivers/video/omap/Kconfig @@ -7,6 +7,10 @@ config FB_OMAP help Frame buffer driver for OMAP based boards. +config FB_OMAP_LCD_VGA + bool "Use LCD in VGA mode" + depends on MACH_OMAP_3430SDP || MACH_OMAP_LDP + config FB_OMAP_BOOTLOADER_INIT bool "Check bootloader initialization" depends on FB_OMAP diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile index ed13889..a8f5b2e 100644 --- a/drivers/video/omap/Makefile +++ b/drivers/video/omap/Makefile @@ -8,6 +8,7 @@ objs-yy := omapfb_main.o objs-y$(CONFIG_ARCH_OMAP1) += lcdc.o objs-y$(CONFIG_ARCH_OMAP2) += dispc.o +objs-y$(CONFIG_ARCH_OMAP3) += dispc.o objs-$(CONFIG_ARCH_OMAP1)$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += sossi.o objs-$(CONFIG_ARCH_OMAP2)$(CONFIG_FB_OMAP_LCDC_EXTERNAL) += rfbi.o @@ -23,6 +24,7 @@ objs-y$(CONFIG_MACH_OMAP_PALMZ71) += lcd_palmz71.o objs-$(CONFIG_ARCH_OMAP16XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1610.o objs-$(CONFIG_ARCH_OMAP15XX)$(CONFIG_MACH_OMAP_INNOVATOR) += lcd_inn1510.o objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o +objs-y$(CONFIG_MACH_OMAP_LDP) += lcd_ldp.o omapfb-objs := $(objs-yy) diff --git a/drivers/video/omap/lcd_ldp.c b/drivers/video/omap/lcd_ldp.c new file mode 100644 index 0000000..8925230 --- /dev/null +++ b/drivers/video/omap/lcd_ldp.c @@ -0,0 +1,200 @@ +/* + * LCD panel support for the TI LDP board + * + * Copyright (C) 2007 WindRiver + * Author: Stanley Miao <stanley.miao@windriver.com> + * + * Derived from drivers/video/omap/lcd-2430sdp.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 <linux/module.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/i2c/twl4030.h> + +#include <mach/gpio.h> +#include <mach/mux.h> +#include <mach/omapfb.h> +#include <asm/mach-types.h> + +#define LCD_PANEL_BACKLIGHT_GPIO (15 + OMAP_MAX_GPIO_LINES) +#define LCD_PANEL_ENABLE_GPIO (7 + OMAP_MAX_GPIO_LINES) + +#define LCD_PANEL_RESET_GPIO 55 +#define LCD_PANEL_QVGA_GPIO 56 + +#ifdef CONFIG_FB_OMAP_LCD_VGA +#define LCD_XRES 480 +#define LCD_YRES 640 +#define LCD_PIXCLOCK_MAX 41700 +#else +#define LCD_XRES 240 +#define LCD_YRES 320 +#define LCD_PIXCLOCK_MAX 185186 +#endif + +#define PM_RECEIVER TWL4030_MODULE_PM_RECEIVER +#define ENABLE_VAUX2_DEDICATED 0x09 +#define ENABLE_VAUX2_DEV_GRP 0x20 +#define ENABLE_VAUX3_DEDICATED 0x03 +#define ENABLE_VAUX3_DEV_GRP 0x20 + +#define ENABLE_VPLL2_DEDICATED 0x05 +#define ENABLE_VPLL2_DEV_GRP 0xE0 +#define TWL4030_VPLL2_DEV_GRP 0x33 +#define TWL4030_VPLL2_DEDICATED 0x36 + +#define t2_out(c, r, v) twl4030_i2c_write_u8(c, r, v) + + +static int ldp_panel_init(struct lcd_panel *panel, + struct omapfb_device *fbdev) +{ + gpio_request(LCD_PANEL_RESET_GPIO, "lcd reset"); + gpio_request(LCD_PANEL_QVGA_GPIO, "lcd qvga"); + gpio_request(LCD_PANEL_ENABLE_GPIO, "lcd panel"); + gpio_request(LCD_PANEL_BACKLIGHT_GPIO, "lcd backlight"); + + gpio_direction_output(LCD_PANEL_QVGA_GPIO, 0); + gpio_direction_output(LCD_PANEL_RESET_GPIO, 0); + gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0); + gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 0); + +#ifdef CONFIG_FB_OMAP_LCD_VGA + gpio_set_value(LCD_PANEL_QVGA_GPIO, 0); +#else + gpio_set_value(LCD_PANEL_QVGA_GPIO, 1); +#endif + gpio_set_value(LCD_PANEL_RESET_GPIO, 1); + + return 0; +} + +static void ldp_panel_cleanup(struct lcd_panel *panel) +{ + gpio_free(LCD_PANEL_RESET_GPIO); + gpio_free(LCD_PANEL_QVGA_GPIO); + gpio_free(LCD_PANEL_ENABLE_GPIO); + gpio_free(LCD_PANEL_BACKLIGHT_GPIO); +} + +static int ldp_panel_enable(struct lcd_panel *panel) +{ + if (0 != t2_out(PM_RECEIVER, ENABLE_VPLL2_DEDICATED, + TWL4030_VPLL2_DEDICATED)) + return -EIO; + if (0 != t2_out(PM_RECEIVER, ENABLE_VPLL2_DEV_GRP, + TWL4030_VPLL2_DEV_GRP)) + return -EIO; + + gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 1); + gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 1); + + if (0 != t2_out(PM_RECEIVER, ENABLE_VAUX3_DEDICATED, + TWL4030_VAUX3_DEDICATED)) + return -EIO; + if (0 != t2_out(PM_RECEIVER, ENABLE_VAUX3_DEV_GRP, + TWL4030_VAUX3_DEV_GRP)) + return -EIO; + + return 0; +} + +static void ldp_panel_disable(struct lcd_panel *panel) +{ + gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0); + gpio_direction_output(LCD_PANEL_BACKLIGHT_GPIO, 0); + + t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEDICATED); + t2_out(PM_RECEIVER, 0x0, TWL4030_VPLL2_DEV_GRP); + mdelay(4); +} + +static unsigned long ldp_panel_get_caps(struct lcd_panel *panel) +{ + return 0; +} + +struct lcd_panel ldp_panel = { + .name = "ldp", + .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | + OMAP_LCDC_INV_HSYNC, + + .bpp = 16, + .data_lines = 18, + .x_res = LCD_XRES, + .y_res = LCD_YRES, + .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 = LCD_PIXCLOCK_MAX, + + .init = ldp_panel_init, + .cleanup = ldp_panel_cleanup, + .enable = ldp_panel_enable, + .disable = ldp_panel_disable, + .get_caps = ldp_panel_get_caps, +}; + +static int ldp_panel_probe(struct platform_device *pdev) +{ + omapfb_register_panel(&ldp_panel); + return 0; +} + +static int ldp_panel_remove(struct platform_device *pdev) +{ + return 0; +} + +static int ldp_panel_suspend(struct platform_device *pdev, pm_message_t mesg) +{ + return 0; +} + +static int ldp_panel_resume(struct platform_device *pdev) +{ + return 0; +} + +struct platform_driver ldp_panel_driver = { + .probe = ldp_panel_probe, + .remove = ldp_panel_remove, + .suspend = ldp_panel_suspend, + .resume = ldp_panel_resume, + .driver = { + .name = "ldp_lcd", + .owner = THIS_MODULE, + }, +}; + +static int __init ldp_panel_drv_init(void) +{ + return platform_driver_register(&ldp_panel_driver); +} + +static void __exit ldp_panel_drv_exit(void) +{ + platform_driver_unregister(&ldp_panel_driver); +} + +module_init(ldp_panel_drv_init); +module_exit(ldp_panel_drv_exit);

OMAP_LDP: Support LCD display as a FB device on ZOOM MDK (Re: LDP support)

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