lkml.org 
[lkml]   [2009]   [Jun]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 10/20] omapfb: Add support for the ZOOM MDK LCD
    Date
    From: Stanley.Miao <stanley.miao@windriver.com>

    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.

    Fixed-by: Jarkko Nikula <jarkko.nikula@gmail.com>
    Fixed-by: Tony Lindgren <tony@atomide.com>
    Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
    Signed-off-by: Tony Lindgren <tony@atomide.com>
    Signed-off-by: Imre Deak <imre.deak@nokia.com>
    Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
    ---
    arch/arm/configs/omap_ldp_defconfig | 54 +++++++++-
    drivers/video/omap/Kconfig | 4 +
    drivers/video/omap/Makefile | 1 +
    drivers/video/omap/lcd_ldp.c | 200 +++++++++++++++++++++++++++++++++++
    4 files changed, 257 insertions(+), 2 deletions(-)
    create mode 100644 drivers/video/omap/lcd_ldp.c

    diff --git a/arch/arm/configs/omap_ldp_defconfig b/arch/arm/configs/omap_ldp_defconfig
    index 679a4a3..b9c4891 100644
    --- a/arch/arm/configs/omap_ldp_defconfig
    +++ b/arch/arm/configs/omap_ldp_defconfig
    @@ -690,6 +690,7 @@ CONFIG_GPIOLIB=y
    # 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:
    @@ -742,6 +743,7 @@ CONFIG_SSB_POSSIBLE=y
    # CONFIG_MFD_SM501 is not set
    # CONFIG_HTC_EGPIO is not set
    # CONFIG_HTC_PASIC3 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
    @@ -767,8 +769,46 @@ 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
    +# CONFIG_BACKLIGHT_GENERIC is not set

    #
    # Display device support
    @@ -780,6 +820,16 @@ 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/drivers/video/omap/Kconfig b/drivers/video/omap/Kconfig
    index eb05e09..2bffc07 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
    +
    choice
    depends on FB_OMAP && MACH_OVERO
    prompt "Screen resolution"
    diff --git a/drivers/video/omap/Makefile b/drivers/video/omap/Makefile
    index 0d2996a..b63b198 100644
    --- a/drivers/video/omap/Makefile
    +++ b/drivers/video/omap/Makefile
    @@ -29,6 +29,7 @@ objs-y$(CONFIG_MACH_OMAP_OSK) += lcd_osk.o
    objs-y$(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$(CONFIG_MACH_OMAP_LDP) += lcd_ldp.o
    objs-y$(CONFIG_MACH_OMAP2EVM) += lcd_omap2evm.o
    objs-y$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o
    objs-y$(CONFIG_MACH_OMAP3_BEAGLE) += lcd_omap3beagle.o
    diff --git a/drivers/video/omap/lcd_ldp.c b/drivers/video/omap/lcd_ldp.c
    new file mode 100644
    index 0000000..dbfe897
    --- /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_BACKLIGHT_GPIO);
    + gpio_free(LCD_PANEL_ENABLE_GPIO);
    + gpio_free(LCD_PANEL_QVGA_GPIO);
    + gpio_free(LCD_PANEL_RESET_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);
    + msleep(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);
    --
    1.6.3.2


    \
     
     \ /
      Last update: 2009-06-24 13:47    [W:0.037 / U:120.140 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site