Other Parts Discussed in Thread: SN75LVDS83B
Hello,
I am trying to port LCD ( Bolymin BTZ070H-CFC$ ) on AM5728 based bare custom board and I also have one AM5728 evaluation board on which LCD OSD_OSD101T2587_53TS is connected.
On EVM, in .config CONFIG_DRM_PANEL_SIMPLE & CONFIG_DRM_PANEL_OSD_OSD101T2587_53TS, CONFIG_DRM_MIPI_DSI are enabled.
As per our understanding, LCD is connected through MIPI_DSI interface on SoC and the driver functionality is present in drivers/gpu/drm/panel/panel-simple.c file.
Following changes have been done to port LCD. Please verify:
1. In our custom board, LCD is connected to LVDS interface, hence, the driver functionality shall be provided through drivers/gpu/drm/panel/panel-lvds.c file. Am I right?
2. We have modified the .config file,
CONFIG_DRM_PANEL_SIMPLE & CONFIG_DRM_PANEL_OSD_OSD101T2587_53TS, CONFIG_DRM_MIPI_DSI are disabled.
CONFIG_DRM_LVDS is enabled. Is this correct?
Issue Facing:
1. Probe function present in the LVDS driver (panel-lvds.c) is not getting called. Why this is happening?
Regards
Sahil Kalra
(Note: In DTS Entries, the panel-timing structure is provided by the vendor to us)
lcd0: display {
compatible = "panel-lvds";
backlight = <&lcd_bl>;
enable-gpios = <&gpio5 12 GPIO_ACTIVE_HIGH>;
label = "lcd";
panel-timing {
clock-frequency = <51200000>;
de-active = <1>;
hactive = <1024>;
hback-porch = <12>;
hfront-porch = <85>;
hsync-active = <0>;
hsync-len = <8>;
pixelclk-active = <1>;
vactive = <600>;
vback-porch = <12>;
vfront-porch = <12>;
vsync-active = <0>;
vsync-len = <8>;
};
port {
lcd_in: endpoint {
remote-endpoint = <&dpi_out>;
};
};
};
lcd_bl: backlight {
compatible = "pwm-backlight";
brightness-levels = <0 243 245 247 249 251 252 253 255>;
default-brightness-level = <8>;
pwms = <&ehrpwm1 0 50000 0>;
};
