]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/commitdiff
OMAP_LDP: Support LCD display as a FB device on ZOOM MDK
authorStanley.Miao <stanley.miao@windriver.com>
Tue, 4 Nov 2008 03:31:56 +0000 (11:31 +0800)
committerTony Lindgren <tony@atomide.com>
Thu, 6 Nov 2008 03:19:36 +0000 (19:19 -0800)
Add glue to control the OMAP_LDP LCD as a frame buffer device
using the existing dispc.c driver under omapfb.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/configs/omap_ldp_defconfig
arch/arm/mach-omap2/board-ldp.c
drivers/video/omap/Kconfig
drivers/video/omap/Makefile
drivers/video/omap/lcd_ldp.c [new file with mode: 0644]

index 0acaee56a4169dca90c5caae12b4afd5227e688b..b8135d2fb04cbd1078014b63f1b289129d620f7a 100644 (file)
@@ -667,8 +667,45 @@ 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
@@ -680,6 +717,16 @@ 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
index d4d4e903cd15d928a8d8df0fa3e3cdb57ba0bcee..e046b101c3269bbe64ea1a0b8ee318578207ab0f 100644 (file)
@@ -168,7 +168,13 @@ static struct spi_board_info ldp_spi_board_info[] __initdata = {
        },
 };
 
+static struct platform_device ldp_lcd_device = {
+       .name           = "ldp_lcd",
+       .id             = -1,
+};
+
 static struct platform_device *ldp_devices[] __initdata = {
+       &ldp_lcd_device,
 };
 
 static void __init omap_ldp_init_irq(void)
@@ -182,8 +188,13 @@ 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 int ldp_batt_table[] = {
index 5ebd59151686722fa026fee908368f8d2c0f292e..c355b59d2d816993f8a61716d75866dd12c93123 100644 (file)
@@ -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"
index 291c46ee588058a5b7e1bc615b5748466b49c8c7..881e87d7f6db9d79454eac3880499c5224d1bd76 100644 (file)
@@ -31,6 +31,7 @@ objs-y$(CONFIG_MACH_SX1) += lcd_sx1.o
 objs-y$(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 (file)
index 0000000..e944166
--- /dev/null
@@ -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)
+{
+       omap_request_gpio(LCD_PANEL_RESET_GPIO);
+       omap_request_gpio(LCD_PANEL_QVGA_GPIO);
+       gpio_request(LCD_PANEL_ENABLE_GPIO, "lcd panel");
+       gpio_request(LCD_PANEL_BACKLIGHT_GPIO, "lcd backlight");
+
+       omap_set_gpio_direction(LCD_PANEL_QVGA_GPIO, 0);
+       omap_set_gpio_direction(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
+       omap_set_gpio_dataout(LCD_PANEL_QVGA_GPIO, 0);
+#else
+       omap_set_gpio_dataout(LCD_PANEL_QVGA_GPIO, 1);
+#endif
+       omap_set_gpio_dataout(LCD_PANEL_RESET_GPIO, 1);
+
+       return 0;
+}
+
+static void ldp_panel_cleanup(struct lcd_panel *panel)
+{
+       omap_free_gpio(LCD_PANEL_RESET_GPIO);
+       omap_free_gpio(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);