Porting LCD on omap4460

Hi,

Did you manage to change the defconfig  file in order to use the DPI display.

Also check this thread about the error that is probably produced by the dvi

http://e2e.ti.com/support/omap/f/849/p/230424/809241.aspx

Best Regards,

Boyko

Hi Bokyo

Thank you for your quickly reply

The board are not here now, I will try your suggestions later.

in my patch:

                    +    /* INNOLUX EJ070NA-01J */
                    +    {
                    +       {
                    +           .x_res            = 1024,
                    +           .y_res            = 600,
                    +           .pixel_clock        = 40800,
                    +           .hsw            = 20, //20

                    +           .hbp            = 45, //90,
                    +           .vsw            = 20, //20,
                    +           .vfp            = 5, //12,
                    +           .vbp            = 5, //10,
                    +       },
                    +       .acbi                = 0x0,
                    +       .acb                = 0x0,
                    +       .config                = OMAP_DSS_LCD_TFT,
                    +       .power_on_delay        = 0,
                    +       .power_off_delay    = 0,
                    +       .name                = "EJ070NA-01J",
                    +    }, 

So you suggestion me to adjust default config and device.mk to 1024:600 resolution   ?

There are my settings:

android_omap_defconfig

    CONFIG_CMDLINE="console=ttyO2,115200n8 androidboot.console=ttyO2 omap_wdt.timer_margin=30 vmalloc=496M omapfb.fb_opt=-1,-1,-1,1,1280,720 omap-cpufreq.safe_suspend_freq=600000000 smsc95xx.turbo_mode=N omapfb.tiler=y"

device.mk

persist.hwc.mirroring.region=0:0:1280:720

BestRegards

Bernie

Hi Boyko

we cat /sys/devices/platform/omapdss/overlay0/*

0
255
1024,600
lcd2
gfx
1024,600
0,0
0
1024
1..255
1..255
0

and

overlay0--------------->manager2(LCD2)-------------->display0(DVI)

Is it correctly?

BestRegards

Bernie

Hi,

Please clarify on which interface are you trying to output DVI or DPI?

Regards,

Boyko

Hello

We are sure that 4AI-1.4-P1 on our board and LCD have screen

fb0--->overlay0---->manager2(lcd2)----->display(DVI)

But with JAJ.2.5P2 revised from 4AJ2.5P2 on our board and we apply DPI patch to our board LCD have no screen
. There are same with above.

fb0---->overlay0----->manager2(lcd2)----->display(DVI)

but I check overlay0's properties that enabled is "0"

                                                                                                                    
root@android:/sys/devices/platform/omapdss/overlay0  # ls
                           1.4P1                                                                                              2.5P2
enabled                 (1)                                                                                                  (0)                      

                                                                                                                                                                          global_alpha       (255)                                                                                               (255)
input_size              (1024,600)                                                                                     (1024,600)
manager                (lcd2)                                                                                              (lcd2)
name                       (gfx)                                                                                                 (gfx)
output_size            (1024,600)                                                                                     (1024,600)
position                   (0,0)                                                                                                 (0,0)
pre_mult_alpha     (1)                                                                                                    (0)
screen_width          (0)                                                                                                    (1024)
x_decim                   (1..255)                                                                                           (1..255)
y_decim                   (1..255)                                                                                           (1..255)
zorder                       (1)                                                                                                     (0)

And also the property of enabled  is "0" in display0(DVI) .But in 4AI-1.4-P1 the property of enabled is "1"

I have referenced http://omappedia.org/wiki/Bootargs_for_enabling_display , and make instruction

echo "1" > /sys/devices/platform/omapdss/overlay0/enabled

It is not any changed and the property of enabled still "0"


echo "1" > /sys/devices/platform/omapdss/display0/enabled

[   61.453094] omapdss DISPC error: mgr or device is NULL
[   61.453094] omapdss DISPC error: mgr or device is NULL
[   61.453124] omapdss DISPC error: mgr or device is NULL
[   61.453124] omapdss DISPC error: mgr or device is NULL
[   61.453124] omapdss DISPC error: mgr or device is NULL
[   61.453155] omapdss DISPC error: mgr or device is NULL
[   61.453155] omapdss DISPC error: mgr or device is NULL
[   61.453186] omapdss DISPC error: mgr or device is NULL
[   61.453216] omapdss DISPC error: mgr or device is NULL
[   61.453247] omapdss DISPC error: mgr or device is NULL
[   61.453247] omapdss DISPC error: mgr or device is NULL
[   61.453247] omapdss DISPC error: mgr or device is NULL
[   61.453277] omapdss DISPC error: mgr or device is NULL
[   61.453277] omapdss DISPC error: mgr or device is NULL
[   61.453308] omapdss DISPC error: mgr or device is NULL
[   61.453338] omapdss DISPC error: mgr or device is NULL
[   61.453338] omapdss DISPC error: mgr or device is NULL
[   61.453338] omapdss DISPC error: mgr or device is NULL
[   61.453369] omapdss DISPC error: mgr or device is NULL

What is root cause lead to overlay0 and display0 disabled?

Thank you very much, Boyko.

BestRegards
Bernie

Hello Ti

I found that our DISPC2_PCLK has no signal, so It is may be a cause lead the LCD doesn't work.

but I make instruction on command line to check all of pinmux in system

cat /sys/kernel/debug/omap_mux/board/core

The DISPC2_PClK is exist in system.

Does our patch not fit to 2.5P2 ? I need some directions to try, thank you.

5557.dpi.diff.txt

BestRegards

Bernie