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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-10 21:55:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-10 21:55:17 -0800
commitaa2cf420593b67cc93de7a3f675b2a88eba0505f (patch)
treedfb3c73a8a3987c3b3ba08083f379ebc90942e03
parentd71cb81af3817193bc605de061da0499934263a6 (diff)
parent178ff4c9175db447f93b7343954b1d44707c881b (diff)
Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux: MAINTAINERS: Add OMAP2/3 DSS and OMAPFB maintainer OMAP: SDP: Enable DSS2 for OMAP3 SDP board OMAP: DSS2: Taal DSI command mode panel driver OMAP: DSS2: Add generic and Sharp panel drivers OMAP: DSS2: omapfb driver OMAP: DSS2: DSI driver OMAP: DSS2: SDI driver OMAP: DSS2: RFBI driver OMAP: DSS2: Video encoder driver OMAP: DSS2: DPI driver OMAP: DSS2: DISPC OMAP: DSS2: Add more core files OMAP: DSS2: Display Subsystem Driver core OMAP: DSS2: Documentation for DSS2 OMAP: Add support for VRFB rotation engine OMAP: Add VRAM manager OMAP: OMAPFB: add omapdss device OMAP: OMAPFB: split omapfb.h OMAP2: Add funcs for writing SMS_ROT_* registers
-rw-r--r--Documentation/arm/OMAP/DSS317
-rw-r--r--MAINTAINERS17
-rw-r--r--arch/arm/configs/omap_3430sdp_defconfig28
-rw-r--r--arch/arm/mach-omap1/board-nokia770.c2
-rw-r--r--arch/arm/mach-omap2/board-3430sdp.c167
-rw-r--r--arch/arm/mach-omap2/clock24xx.c8
-rw-r--r--arch/arm/mach-omap2/clock34xx.c14
-rw-r--r--arch/arm/mach-omap2/io.c4
-rw-r--r--arch/arm/mach-omap2/sdrc.c16
-rw-r--r--arch/arm/plat-omap/fb.c49
-rw-r--r--arch/arm/plat-omap/include/plat/display.h575
-rw-r--r--arch/arm/plat-omap/include/plat/sdrc.h9
-rw-r--r--arch/arm/plat-omap/include/plat/vram.h62
-rw-r--r--arch/arm/plat-omap/include/plat/vrfb.h50
-rw-r--r--arch/arm/plat-omap/sram.c8
-rw-r--r--drivers/video/Kconfig1
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/omap/Kconfig5
-rw-r--r--drivers/video/omap/blizzard.c2
-rw-r--r--drivers/video/omap/dispc.c21
-rw-r--r--drivers/video/omap/hwa742.c3
-rw-r--r--drivers/video/omap/lcd_2430sdp.c3
-rw-r--r--drivers/video/omap/lcd_ams_delta.c3
-rw-r--r--drivers/video/omap/lcd_apollon.c3
-rw-r--r--drivers/video/omap/lcd_h3.c2
-rw-r--r--drivers/video/omap/lcd_h4.c2
-rw-r--r--drivers/video/omap/lcd_htcherald.c2
-rw-r--r--drivers/video/omap/lcd_inn1510.c2
-rw-r--r--drivers/video/omap/lcd_inn1610.c2
-rw-r--r--drivers/video/omap/lcd_ldp.c3
-rw-r--r--drivers/video/omap/lcd_mipid.c3
-rw-r--r--drivers/video/omap/lcd_omap2evm.c3
-rw-r--r--drivers/video/omap/lcd_omap3beagle.c4
-rw-r--r--drivers/video/omap/lcd_omap3evm.c3
-rw-r--r--drivers/video/omap/lcd_osk.c2
-rw-r--r--drivers/video/omap/lcd_overo.c3
-rw-r--r--drivers/video/omap/lcd_palmte.c2
-rw-r--r--drivers/video/omap/lcd_palmtt.c2
-rw-r--r--drivers/video/omap/lcd_palmz71.c2
-rw-r--r--drivers/video/omap/lcdc.c3
-rw-r--r--drivers/video/omap/omapfb.h (renamed from arch/arm/plat-omap/include/plat/omapfb.h)191
-rw-r--r--drivers/video/omap/omapfb_main.c2
-rw-r--r--drivers/video/omap/rfbi.c3
-rw-r--r--drivers/video/omap/sossi.c3
-rw-r--r--drivers/video/omap2/Kconfig9
-rw-r--r--drivers/video/omap2/Makefile6
-rw-r--r--drivers/video/omap2/displays/Kconfig22
-rw-r--r--drivers/video/omap2/displays/Makefile4
-rw-r--r--drivers/video/omap2/displays/panel-generic.c104
-rw-r--r--drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c153
-rw-r--r--drivers/video/omap2/displays/panel-taal.c1003
-rw-r--r--drivers/video/omap2/dss/Kconfig89
-rw-r--r--drivers/video/omap2/dss/Makefile6
-rw-r--r--drivers/video/omap2/dss/core.c919
-rw-r--r--drivers/video/omap2/dss/dispc.c3091
-rw-r--r--drivers/video/omap2/dss/display.c671
-rw-r--r--drivers/video/omap2/dss/dpi.c399
-rw-r--r--drivers/video/omap2/dss/dsi.c3710
-rw-r--r--drivers/video/omap2/dss/dss.c596
-rw-r--r--drivers/video/omap2/dss/dss.h370
-rw-r--r--drivers/video/omap2/dss/manager.c1487
-rw-r--r--drivers/video/omap2/dss/overlay.c680
-rw-r--r--drivers/video/omap2/dss/rfbi.c1309
-rw-r--r--drivers/video/omap2/dss/sdi.c277
-rw-r--r--drivers/video/omap2/dss/venc.c797
-rw-r--r--drivers/video/omap2/omapfb/Kconfig37
-rw-r--r--drivers/video/omap2/omapfb/Makefile2
-rw-r--r--drivers/video/omap2/omapfb/omapfb-ioctl.c755
-rw-r--r--drivers/video/omap2/omapfb/omapfb-main.c2261
-rw-r--r--drivers/video/omap2/omapfb/omapfb-sysfs.c507
-rw-r--r--drivers/video/omap2/omapfb/omapfb.h146
-rw-r--r--drivers/video/omap2/vram.c655
-rw-r--r--drivers/video/omap2/vrfb.c315
-rw-r--r--include/linux/omapfb.h251
74 files changed, 21991 insertions, 247 deletions
diff --git a/Documentation/arm/OMAP/DSS b/Documentation/arm/OMAP/DSS
new file mode 100644
index 00000000000..0af0e9eed5d
--- /dev/null
+++ b/Documentation/arm/OMAP/DSS
@@ -0,0 +1,317 @@
+OMAP2/3 Display Subsystem
+-------------------------
+
+This is an almost total rewrite of the OMAP FB driver in drivers/video/omap
+(let's call it DSS1). The main differences between DSS1 and DSS2 are DSI,
+TV-out and multiple display support, but there are lots of small improvements
+also.
+
+The DSS2 driver (omapdss module) is in arch/arm/plat-omap/dss/, and the FB,
+panel and controller drivers are in drivers/video/omap2/. DSS1 and DSS2 live
+currently side by side, you can choose which one to use.
+
+Features
+--------
+
+Working and tested features include:
+
+- MIPI DPI (parallel) output
+- MIPI DSI output in command mode
+- MIPI DBI (RFBI) output
+- SDI output
+- TV output
+- All pieces can be compiled as a module or inside kernel
+- Use DISPC to update any of the outputs
+- Use CPU to update RFBI or DSI output
+- OMAP DISPC planes
+- RGB16, RGB24 packed, RGB24 unpacked
+- YUV2, UYVY
+- Scaling
+- Adjusting DSS FCK to find a good pixel clock
+- Use DSI DPLL to create DSS FCK
+
+Tested boards include:
+- OMAP3 SDP board
+- Beagle board
+- N810
+
+omapdss driver
+--------------
+
+The DSS driver does not itself have any support for Linux framebuffer, V4L or
+such like the current ones, but it has an internal kernel API that upper level
+drivers can use.
+
+The DSS driver models OMAP's overlays, overlay managers and displays in a
+flexible way to enable non-common multi-display configuration. In addition to
+modelling the hardware overlays, omapdss supports virtual overlays and overlay
+managers. These can be used when updating a display with CPU or system DMA.
+
+Panel and controller drivers
+----------------------------
+
+The drivers implement panel or controller specific functionality and are not
+usually visible to users except through omapfb driver. They register
+themselves to the DSS driver.
+
+omapfb driver
+-------------
+
+The omapfb driver implements arbitrary number of standard linux framebuffers.
+These framebuffers can be routed flexibly to any overlays, thus allowing very
+dynamic display architecture.
+
+The driver exports some omapfb specific ioctls, which are compatible with the
+ioctls in the old driver.
+
+The rest of the non standard features are exported via sysfs. Whether the final
+implementation will use sysfs, or ioctls, is still open.
+
+V4L2 drivers
+------------
+
+V4L2 is being implemented in TI.
+
+From omapdss point of view the V4L2 drivers should be similar to framebuffer
+driver.
+
+Architecture
+--------------------
+
+Some clarification what the different components do:
+
+ - Framebuffer is a memory area inside OMAP's SRAM/SDRAM that contains the
+ pixel data for the image. Framebuffer has width and height and color
+ depth.
+ - Overlay defines where the pixels are read from and where they go on the
+ screen. The overlay may be smaller than framebuffer, thus displaying only
+ part of the framebuffer. The position of the overlay may be changed if
+ the overlay is smaller than the display.
+ - Overlay manager combines the overlays in to one image and feeds them to
+ display.
+ - Display is the actual physical display device.
+
+A framebuffer can be connected to multiple overlays to show the same pixel data
+on all of the overlays. Note that in this case the overlay input sizes must be
+the same, but, in case of video overlays, the output size can be different. Any
+framebuffer can be connected to any overlay.
+
+An overlay can be connected to one overlay manager. Also DISPC overlays can be
+connected only to DISPC overlay managers, and virtual overlays can be only
+connected to virtual overlays.
+
+An overlay manager can be connected to one display. There are certain
+restrictions which kinds of displays an overlay manager can be connected:
+
+ - DISPC TV overlay manager can be only connected to TV display.
+ - Virtual overlay managers can only be connected to DBI or DSI displays.
+ - DISPC LCD overlay manager can be connected to all displays, except TV
+ display.
+
+Sysfs
+-----
+The sysfs interface is mainly used for testing. I don't think sysfs
+interface is the best for this in the final version, but I don't quite know
+what would be the best interfaces for these things.
+
+The sysfs interface is divided to two parts: DSS and FB.
+
+/sys/class/graphics/fb? directory:
+mirror 0=off, 1=on
+rotate Rotation 0-3 for 0, 90, 180, 270 degrees
+rotate_type 0 = DMA rotation, 1 = VRFB rotation
+overlays List of overlay numbers to which framebuffer pixels go
+phys_addr Physical address of the framebuffer
+virt_addr Virtual address of the framebuffer
+size Size of the framebuffer
+
+/sys/devices/platform/omapdss/overlay? directory:
+enabled 0=off, 1=on
+input_size width,height (ie. the framebuffer size)
+manager Destination overlay manager name
+name
+output_size width,height
+position x,y
+screen_width width
+global_alpha global alpha 0-255 0=transparent 255=opaque
+
+/sys/devices/platform/omapdss/manager? directory:
+display Destination display
+name
+alpha_blending_enabled 0=off, 1=on
+trans_key_enabled 0=off, 1=on
+trans_key_type gfx-destination, video-source
+trans_key_value transparency color key (RGB24)
+default_color default background color (RGB24)
+
+/sys/devices/platform/omapdss/display? directory:
+ctrl_name Controller name
+mirror 0=off, 1=on
+update_mode 0=off, 1=auto, 2=manual
+enabled 0=off, 1=on
+name
+rotate Rotation 0-3 for 0, 90, 180, 270 degrees
+timings Display timings (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw)
+ When writing, two special timings are accepted for tv-out:
+ "pal" and "ntsc"
+panel_name
+tear_elim Tearing elimination 0=off, 1=on
+
+There are also some debugfs files at <debugfs>/omapdss/ which show information
+about clocks and registers.
+
+Examples
+--------
+
+The following definitions have been made for the examples below:
+
+ovl0=/sys/devices/platform/omapdss/overlay0
+ovl1=/sys/devices/platform/omapdss/overlay1
+ovl2=/sys/devices/platform/omapdss/overlay2
+
+mgr0=/sys/devices/platform/omapdss/manager0
+mgr1=/sys/devices/platform/omapdss/manager1
+
+lcd=/sys/devices/platform/omapdss/display0
+dvi=/sys/devices/platform/omapdss/display1
+tv=/sys/devices/platform/omapdss/display2
+
+fb0=/sys/class/graphics/fb0
+fb1=/sys/class/graphics/fb1
+fb2=/sys/class/graphics/fb2
+
+Default setup on OMAP3 SDP
+--------------------------
+
+Here's the default setup on OMAP3 SDP board. All planes go to LCD. DVI
+and TV-out are not in use. The columns from left to right are:
+framebuffers, overlays, overlay managers, displays. Framebuffers are
+handled by omapfb, and the rest by the DSS.
+
+FB0 --- GFX -\ DVI
+FB1 --- VID1 --+- LCD ---- LCD
+FB2 --- VID2 -/ TV ----- TV
+
+Example: Switch from LCD to DVI
+----------------------
+
+w=`cat $dvi/timings | cut -d "," -f 2 | cut -d "/" -f 1`
+h=`cat $dvi/timings | cut -d "," -f 3 | cut -d "/" -f 1`
+
+echo "0" > $lcd/enabled
+echo "" > $mgr0/display
+fbset -fb /dev/fb0 -xres $w -yres $h -vxres $w -vyres $h
+# at this point you have to switch the dvi/lcd dip-switch from the omap board
+echo "dvi" > $mgr0/display
+echo "1" > $dvi/enabled
+
+After this the configuration looks like:
+
+FB0 --- GFX -\ -- DVI
+FB1 --- VID1 --+- LCD -/ LCD
+FB2 --- VID2 -/ TV ----- TV
+
+Example: Clone GFX overlay to LCD and TV
+-------------------------------
+
+w=`cat $tv/timings | cut -d "," -f 2 | cut -d "/" -f 1`
+h=`cat $tv/timings | cut -d "," -f 3 | cut -d "/" -f 1`
+
+echo "0" > $ovl0/enabled
+echo "0" > $ovl1/enabled
+
+echo "" > $fb1/overlays
+echo "0,1" > $fb0/overlays
+
+echo "$w,$h" > $ovl1/output_size
+echo "tv" > $ovl1/manager
+
+echo "1" > $ovl0/enabled
+echo "1" > $ovl1/enabled
+
+echo "1" > $tv/enabled
+
+After this the configuration looks like (only relevant parts shown):
+
+FB0 +-- GFX ---- LCD ---- LCD
+ \- VID1 ---- TV ---- TV
+
+Misc notes
+----------
+
+OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator.
+
+Using DSI DPLL to generate pixel clock it is possible produce the pixel clock
+of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI.
+
+Rotation and mirroring currently only supports RGB565 and RGB8888 modes. VRFB
+does not support mirroring.
+
+VRFB rotation requires much more memory than non-rotated framebuffer, so you
+probably need to increase your vram setting before using VRFB rotation. Also,
+many applications may not work with VRFB if they do not pay attention to all
+framebuffer parameters.
+
+Kernel boot arguments
+---------------------
+
+vram=<size>
+ - Amount of total VRAM to preallocate. For example, "10M". omapfb
+ allocates memory for framebuffers from VRAM.
+
+omapfb.mode=<display>:<mode>[,...]
+ - Default video mode for specified displays. For example,
+ "dvi:800x400MR-24@60". See drivers/video/modedb.c.
+ There are also two special modes: "pal" and "ntsc" that
+ can be used to tv out.
+
+omapfb.vram=<fbnum>:<size>[@<physaddr>][,...]
+ - VRAM allocated for a framebuffer. Normally omapfb allocates vram
+ depending on the display size. With this you can manually allocate
+ more or define the physical address of each framebuffer. For example,
+ "1:4M" to allocate 4M for fb1.
+
+omapfb.debug=<y|n>
+ - Enable debug printing. You have to have OMAPFB debug support enabled
+ in kernel config.
+
+omapfb.test=<y|n>
+ - Draw test pattern to framebuffer whenever framebuffer settings change.
+ You need to have OMAPFB debug support enabled in kernel config.
+
+omapfb.vrfb=<y|n>
+ - Use VRFB rotation for all framebuffers.
+
+omapfb.rotate=<angle>
+ - Default rotation applied to all framebuffers.
+ 0 - 0 degree rotation
+ 1 - 90 degree rotation
+ 2 - 180 degree rotation
+ 3 - 270 degree rotation
+
+omapfb.mirror=<y|n>
+ - Default mirror for all framebuffers. Only works with DMA rotation.
+
+omapdss.def_disp=<display>
+ - Name of default display, to which all overlays will be connected.
+ Common examples are "lcd" or "tv".
+
+omapdss.debug=<y|n>
+ - Enable debug printing. You have to have DSS debug support enabled in
+ kernel config.
+
+TODO
+----
+
+DSS locking
+
+Error checking
+- Lots of checks are missing or implemented just as BUG()
+
+System DMA update for DSI
+- Can be used for RGB16 and RGB24P modes. Probably not for RGB24U (how
+ to skip the empty byte?)
+
+OMAP1 support
+- Not sure if needed
+
diff --git a/MAINTAINERS b/MAINTAINERS
index d7f8668b7a7..98d5ca10ac0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3903,6 +3903,23 @@ L: linux-omap@vger.kernel.org
S: Maintained
F: drivers/video/omap/
+OMAP DISPLAY SUBSYSTEM SUPPORT (DSS2)
+M: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+L: linux-omap@vger.kernel.org
+L: linux-fbdev@vger.kernel.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/video/omap2/dss/
+F: drivers/video/omap2/vrfb.c
+F: drivers/video/omap2/vram.c
+F: Documentation/arm/OMAP/DSS
+
+OMAP FRAMEBUFFER SUPPORT (FOR DSS2)
+M: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+L: linux-omap@vger.kernel.org
+L: linux-fbdev@vger.kernel.org (moderated for non-subscribers)
+S: Maintained
+F: drivers/video/omap2/omapfb/
+
OMAP MMC SUPPORT
M: Jarkko Lavinen <jarkko.lavinen@nokia.com>
L: linux-omap@vger.kernel.org
diff --git a/arch/arm/configs/omap_3430sdp_defconfig b/arch/arm/configs/omap_3430sdp_defconfig
index 84829587d55..592457cfbbe 100644
--- a/arch/arm/configs/omap_3430sdp_defconfig
+++ b/arch/arm/configs/omap_3430sdp_defconfig
@@ -963,10 +963,32 @@ CONFIG_FB_CFB_IMAGEBLIT=y
#
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_VIRTUAL is not set
-CONFIG_FB_OMAP=y
-# CONFIG_FB_OMAP_LCDC_EXTERNAL is not set
+# CONFIG_FB_METRONOME is not set
+# CONFIG_FB_MB862XX is not set
+# CONFIG_FB_BROADSHEET is not set
+# CONFIG_FB_OMAP_LCD_VGA is not set
# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
-CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
+CONFIG_OMAP2_VRAM=y
+CONFIG_OMAP2_VRFB=y
+CONFIG_OMAP2_DSS=y
+CONFIG_OMAP2_VRAM_SIZE=4
+CONFIG_OMAP2_DSS_DEBUG_SUPPORT=y
+# CONFIG_OMAP2_DSS_RFBI is not set
+CONFIG_OMAP2_DSS_VENC=y
+# CONFIG_OMAP2_DSS_SDI is not set
+# CONFIG_OMAP2_DSS_DSI is not set
+# CONFIG_OMAP2_DSS_FAKE_VSYNC is not set
+CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
+CONFIG_FB_OMAP2=y
+CONFIG_FB_OMAP2_DEBUG_SUPPORT=y
+# CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE is not set
+CONFIG_FB_OMAP2_NUM_FBS=3
+
+#
+# OMAP2/3 Display Device Drivers
+#
+CONFIG_PANEL_GENERIC=y
+CONFIG_PANEL_SHARP_LS037V7DW01=y
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
#
diff --git a/arch/arm/mach-omap1/board-nokia770.c b/arch/arm/mach-omap1/board-nokia770.c
index 5a275bab2df..71e1a3fad0e 100644
--- a/arch/arm/mach-omap1/board-nokia770.c
+++ b/arch/arm/mach-omap1/board-nokia770.c
@@ -14,6 +14,7 @@
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/clk.h>
+#include <linux/omapfb.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
@@ -32,7 +33,6 @@
#include <plat/keypad.h>
#include <plat/common.h>
#include <plat/dsp_common.h>
-#include <plat/omapfb.h>
#include <plat/hwa742.h>
#include <plat/lcd_mipid.h>
#include <plat/mmc.h>
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index 491364e44c7..5bda9fdbee9 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -37,6 +37,7 @@
#include <plat/common.h>
#include <plat/dma.h>
#include <plat/gpmc.h>
+#include <plat/display.h>
#include <plat/control.h>
#include <plat/gpmc-smc91x.h>
@@ -152,31 +153,152 @@ static struct spi_board_info sdp3430_spi_board_info[] __initdata = {
},
};
-static struct platform_device sdp3430_lcd_device = {
- .name = "sdp2430_lcd",
- .id = -1,
+
+#define SDP3430_LCD_PANEL_BACKLIGHT_GPIO 8
+#define SDP3430_LCD_PANEL_ENABLE_GPIO 5
+
+static unsigned backlight_gpio;
+static unsigned enable_gpio;
+static int lcd_enabled;
+static int dvi_enabled;
+
+static void __init sdp3430_display_init(void)
+{
+ int r;
+
+ enable_gpio = SDP3430_LCD_PANEL_ENABLE_GPIO;
+ backlight_gpio = SDP3430_LCD_PANEL_BACKLIGHT_GPIO;
+
+ r = gpio_request(enable_gpio, "LCD reset");
+ if (r) {
+ printk(KERN_ERR "failed to get LCD reset GPIO\n");
+ goto err0;
+ }
+
+ r = gpio_request(backlight_gpio, "LCD Backlight");
+ if (r) {
+ printk(KERN_ERR "failed to get LCD backlight GPIO\n");
+ goto err1;
+ }
+
+ gpio_direction_output(enable_gpio, 0);
+ gpio_direction_output(backlight_gpio, 0);
+
+ return;
+err1:
+ gpio_free(enable_gpio);
+err0:
+ return;
+}
+
+static int sdp3430_panel_enable_lcd(struct omap_dss_device *dssdev)
+{
+ if (dvi_enabled) {
+ printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
+ return -EINVAL;
+ }
+
+ gpio_direction_output(enable_gpio, 1);
+ gpio_direction_output(backlight_gpio, 1);
+
+ lcd_enabled = 1;
+
+ return 0;
+}
+
+static void sdp3430_panel_disable_lcd(struct omap_dss_device *dssdev)
+{
+ lcd_enabled = 0;
+
+ gpio_direction_output(enable_gpio, 0);
+ gpio_direction_output(backlight_gpio, 0);
+}