Other Parts Discussed in Thread: OPA362, TFP410, TPD12S015, LM3630A, LM3639, TPS65217
SDK : ti-processor-sdk-linux-rt-am57xx-evm-05.03.00.07
linux : linux-rt-4.14.79+gitAUTOINC+a72bf1418c-ga72bf1418c
u-boot : u-boot-2018.01+gitAUTOINC+313dcd69c2-ge2bc936055
toolchain : gcc-linaro-7.2.1-2017.11-x86_64_arm-linux-gnueabihf
-----------------------------------------------------------------------------------------------------
Hi,
I'm using a custom board that uses AM5718.
I want to make the TFT-LCD Interface the RGB interface.
I am using am571x-idk.dtb.
However, /dev/fb0 is not generated at boot time.
---------------------------------------------------------------------------------------
am57xx-idk-common.dtsi :
aliases {
display0 = &lcd0;
};
...
lcd0: display {
compatible = "panel-dpi";
backlight = <&lcd_bl>;
/* enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; */ /* skaskawl - 2019.09.11 : LCD POWER ALWAYS INPUT */
label = "lcd";
panel-timing {
clock-frequency = <33000000>;
de-active = <1>;
hactive = <800>;
hback-porch = <16>;
hfront-porch = <210>;
hsync-active = <0>;
hsync-len = <30>;
pixelclk-active = <1>;
vactive = <480>;
vback-porch = <10>;
vfront-porch = <22>;
vsync-active = <0>;
vsync-len = <13>;
};
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>;
};
...
&dss {
status = "okay";
vdda_video-supply = <&ldoln_reg>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port {
reg = <0>;
dpi_out: endpoint {
data-lines = <24>;
remote-endpoint = <&lcd_in>;
};
};
};
};
&ehrpwm1 {
status = "okay";
};
-----------------------------------------------------------------------------------
.config :
...
#
# Graphics support
#
# CONFIG_VGA_ARB is not set
# CONFIG_IMX_IPUV3_CORE is not set
CONFIG_DRM=y
# CONFIG_DRM_DP_AUX_CHARDEV is not set
# CONFIG_DRM_DEBUG_MM is not set
# CONFIG_DRM_DEBUG_MM_SELFTEST is not set
CONFIG_DRM_KMS_HELPER=y
CONFIG_DRM_KMS_FB_HELPER=y
CONFIG_DRM_FBDEV_EMULATION=y
CONFIG_DRM_FBDEV_OVERALLOC=100
# CONFIG_DRM_LOAD_EDID_FIRMWARE is not set
CONFIG_DRM_GEM_CMA_HELPER=y
CONFIG_DRM_KMS_CMA_HELPER=y
CONFIG_DRM_VM=y
#
# I2C encoder or helper chips
#
# CONFIG_DRM_I2C_CH7006 is not set
# CONFIG_DRM_I2C_SIL164 is not set
CONFIG_DRM_I2C_NXP_TDA998X=y
# CONFIG_DRM_HDLCD is not set
# CONFIG_DRM_MALI_DISPLAY is not set
# CONFIG_DRM_RADEON is not set
# CONFIG_DRM_AMDGPU is not set
#
# ACP (Audio CoProcessor) Configuration
#
# CONFIG_DRM_NOUVEAU is not set
# CONFIG_DRM_VGEM is not set
# CONFIG_DRM_EXYNOS is not set
# CONFIG_DRM_AST is not set
# CONFIG_DRM_MGAG200 is not set
# CONFIG_DRM_CIRRUS_QEMU is not set
# CONFIG_DRM_ARMADA is not set
# CONFIG_DRM_RCAR_DW_HDMI is not set
CONFIG_DRM_OMAP=y
CONFIG_DRM_OMAP_WB=y
CONFIG_OMAP2_DSS_INIT=y
CONFIG_OMAP_DSS_BASE=y
CONFIG_OMAP2_DSS=y
# CONFIG_OMAP2_DSS_DEBUG is not set
CONFIG_OMAP2_DSS_DEBUGFS=y
# CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS is not set
CONFIG_OMAP2_DSS_DPI=y
CONFIG_OMAP2_DSS_VENC=y
# CONFIG_OMAP4_DSS_HDMI is not set
# CONFIG_OMAP5_DSS_HDMI is not set
# CONFIG_OMAP2_DSS_SDI is not set
# CONFIG_OMAP2_DSS_DSI is not set
CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK=0
CONFIG_OMAP2_DSS_SLEEP_AFTER_VENC_RESET=y
CONFIG_TI_DSS6=y
#
# OMAPDRM External Display Device Drivers
#
# CONFIG_DRM_OMAP_ENCODER_OPA362 is not set
CONFIG_DRM_OMAP_ENCODER_TFP410=y
# CONFIG_DRM_OMAP_ENCODER_TPD12S015 is not set
# CONFIG_DRM_OMAP_ENCODER_TC358768 is not set
# CONFIG_DRM_OMAP_ENCODER_SII9022 is not set
CONFIG_DRM_OMAP_CONNECTOR_DVI=y
# CONFIG_DRM_OMAP_CONNECTOR_HDMI is not set
# CONFIG_DRM_OMAP_CONNECTOR_ANALOG_TV is not set
CONFIG_DRM_OMAP_PANEL_DPI=y
CONFIG_DRM_OMAP_PANEL_DSI_CM=y
# CONFIG_DRM_OMAP_PANEL_SONY_ACX565AKM is not set
# CONFIG_DRM_OMAP_PANEL_LGPHILIPS_LB035Q02 is not set
# CONFIG_DRM_OMAP_PANEL_SHARP_LS037V7DW01 is not set
# CONFIG_DRM_OMAP_PANEL_TPO_TD028TTEC1 is not set
# CONFIG_DRM_OMAP_PANEL_TPO_TD043MTEA1 is not set
# CONFIG_DRM_OMAP_PANEL_NEC_NL8048HL11 is not set
CONFIG_DRM_TILCDC=y
# CONFIG_DRM_TILCDC_SLAVE_COMPAT is not set
# CONFIG_DRM_QXL is not set
# CONFIG_DRM_BOCHS is not set
# CONFIG_DRM_VIRTIO_GPU is not set
# CONFIG_DRM_FSL_DCU is not set
# CONFIG_DRM_STM is not set
CONFIG_DRM_PANEL=y
#
# Display Panels
#
# CONFIG_DRM_PANEL_LVDS is not set
CONFIG_DRM_PANEL_SIMPLE=y
CONFIG_DRM_PANEL_SAMSUNG_LD9040=m
# CONFIG_DRM_PANEL_LG_LG4573 is not set
# CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0 is not set
# CONFIG_DRM_PANEL_SITRONIX_ST7789V is not set
CONFIG_DRM_BRIDGE=y
CONFIG_DRM_PANEL_BRIDGE=y
#
# Display Interface Bridges
#
# CONFIG_DRM_ANALOGIX_ANX78XX is not set
CONFIG_DRM_DUMB_VGA_DAC=m
# CONFIG_DRM_LVDS_ENCODER is not set
# CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW is not set
# CONFIG_DRM_NXP_PTN3460 is not set
# CONFIG_DRM_PARADE_PS8622 is not set
# CONFIG_DRM_SIL_SII8620 is not set
# CONFIG_DRM_SII902X is not set
# CONFIG_DRM_TOSHIBA_TC358767 is not set
# CONFIG_DRM_TI_TFP410 is not set
# CONFIG_DRM_I2C_ADV7511 is not set
# CONFIG_DRM_STI is not set
# CONFIG_DRM_ARCPGU is not set
# CONFIG_DRM_HISI_HIBMC is not set
# CONFIG_DRM_MXSFB is not set
# CONFIG_DRM_TINYDRM is not set
# CONFIG_DRM_PL111 is not set
# CONFIG_DRM_TIDSS is not set
CONFIG_DRM_LEGACY=y
# CONFIG_DRM_TDFX is not set
# CONFIG_DRM_R128 is not set
# CONFIG_DRM_MGA is not set
# CONFIG_DRM_VIA is not set
# CONFIG_DRM_SAVAGE is not set
# CONFIG_DRM_LIB_RANDOM is not set
#
# Frame buffer Devices
#
CONFIG_FB=y
# CONFIG_FIRMWARE_EDID is not set
CONFIG_FB_CMDLINE=y
CONFIG_FB_NOTIFY=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=y
CONFIG_FB_SYS_COPYAREA=y
CONFIG_FB_SYS_IMAGEBLIT=y
# CONFIG_FB_PROVIDE_GET_FB_UNMAPPED_AREA is not set
# CONFIG_FB_FOREIGN_ENDIAN is not set
CONFIG_FB_SYS_FOPS=y
CONFIG_FB_DEFERRED_IO=y
# CONFIG_FB_SVGALIB is not set
# CONFIG_FB_MACMODES is not set
CONFIG_FB_BACKLIGHT=y
# CONFIG_FB_MODE_HELPERS is not set
# CONFIG_FB_TILEBLITTING is not set
#
# Frame buffer hardware drivers
#
# CONFIG_FB_CIRRUS is not set
# CONFIG_FB_PM2 is not set
# CONFIG_FB_CYBER2000 is not set
# CONFIG_FB_ASILIANT is not set
# CONFIG_FB_IMSTT is not set
# CONFIG_FB_EFI is not set
# CONFIG_FB_OPENCORES is not set
# CONFIG_FB_S1D13XXX is not set
# CONFIG_FB_NVIDIA is not set
# CONFIG_FB_RIVA is not set
# CONFIG_FB_I740 is not set
# CONFIG_FB_MATROX is not set
# CONFIG_FB_RADEON is not set
# CONFIG_FB_ATY128 is not set
# CONFIG_FB_ATY is not set
# CONFIG_FB_S3 is not set
# CONFIG_FB_SAVAGE is not set
# CONFIG_FB_SIS is not set
# CONFIG_FB_NEOMAGIC is not set
# CONFIG_FB_KYRO is not set
# CONFIG_FB_3DFX is not set
# CONFIG_FB_VOODOO1 is not set
# CONFIG_FB_VT8623 is not set
# CONFIG_FB_TRIDENT is not set
# CONFIG_FB_ARK is not set
# CONFIG_FB_PM3 is not set
# CONFIG_FB_CARMINE is not set
# CONFIG_FB_IBM_GXT4500 is not set
# CONFIG_FB_VIRTUAL is not set
# CONFIG_FB_METRONOME is not set
# CONFIG_FB_MB862XX is not set
# CONFIG_FB_BROADSHEET is not set
# CONFIG_FB_AUO_K190X is not set
CONFIG_FB_SIMPLE=y
CONFIG_FB_SSD1307=y
# CONFIG_FB_SM712 is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
CONFIG_BACKLIGHT_GENERIC=y
CONFIG_BACKLIGHT_PWM=y
# CONFIG_BACKLIGHT_PM8941_WLED is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_TPS65217 is not set
CONFIG_BACKLIGHT_GPIO=y
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# CONFIG_BACKLIGHT_LED is not set
# CONFIG_VGASTATE is not set
CONFIG_VIDEOMODE_HELPERS=y
CONFIG_HDMI=y
...
-------------------------------------------------------------------------------------------------
Is there anything else I need to add?
