Dear mailing-list,
I am working with a vanilla 3.0.17 kernel with some patch for my Omap4430 based
board.
I am using the driver video/omap2/panel-lgphilips-lb025q02.c with a very
similar screen.
I have added on my board init file the init code for both the SPI and the
panel, like below.
static struct omap_dss_device sb_dpi_device = {
.type = OMAP_DISPLAY_TYPE_DPI,
.name = "lcd35",
.driver_name = "lgphilips_lb035q02_panel",
.phy.dpi.data_lines = 24,
.platform_enable = sb_panel_enable_lcd,
.platform_disable = sb_panel_disable_lcd,
};
...
static struct spi_board_info sb_spi_board_info[] __initdata = {
{
.modalias = "lgphilips_lb035q02_panel-spi",
.bus_num = 1,
.chip_select = 0,
.max_speed_hz = 500000,
.mode = SPI_MODE_3,
},
};
The init of the SPI is done before the one of the panel.
When my kernel boot he freeze (without error message) at the moment where it
should do the :
"Console: switching to colour frame buffer device..."
But in my case it freeze somewhere just before this print.
Earlier in the boot process I have the following error message:
OMAP DSS rev 4.0
omapdss MANAGER error: display 'lcd35' does not support manager 'lcd'
Lcd35 is the name of the screen declared in the board config file.
I use the followings bootargs: omapdss.def_disp=lcd35 omapdss.debug=y vram=10M
I have tried with the video/omap2/panel-generic-display.c driver with the
correct timming.
The kernel boot but the screen doesn't work correctly (Only one vertical line
is colored).
I have tried with panel-lgphilips-lb025q02.c but with initialising only the SPI
from the board config file (without calling the display init). The kernel boot
but of course the screen doesn't work at all. So it seems that the problem is
not from the SPI side.
Do you have any idea why I have this problems ?
Thanks in advance for your help.
Patrick
static struct spi_board_info sb_spi_board_info[] __initdata = {
{
.modalias = "lgphilips_lb035q02_panel-spi",
.bus_num = 1,
.chip_select = 0,
.max_speed_hz = 500000,
.mode = SPI_MODE_3,
},
};
I init the SPI before the panel as in your overo board file.
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