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add overlay for vc4-kms-waveshare-28dpi

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This commit is contained in:
DanyLE 2023-07-08 22:38:49 +02:00
parent 1642c8f7d4
commit 9180aef180
3 changed files with 105 additions and 3 deletions
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101
recipes-bsp/waveshare-2.8-lcd/files/dts/vc4-kms-waveshare-28dpi.dts Normal file
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@ -0,0 +1,101 @@
/*
* vc4-kms-waveshare-28dpi-overlay.dts
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/bcm2835.h>
/ {
compatible = "brcm,bcm2835";
fragment@0 {
target = <&gpio>;
__overlay__ {
pwm_pins: pwm_pins {
brcm,pins = <18>;
brcm,function = <BCM2835_FSEL_ALT5>;
brcm,pull = <0>;
};
};
};
fragment@1 {
target = <&pwm>;
frag1: __overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&pwm_pins>;
assigned-clock-rates = <100000000>;
status = "okay";
};
};
fragment@2 {
target-path = "/";
__overlay__ {
//#gpio-cells = <2>;
/* Panel backlight through PWM0_0 on GPIO18 */
backlight_lvds: backlight {
compatible = "pwm-backlight";
pwms = <&pwm 0 10000000>;
brightness-levels = <0 1000>;
num-interpolated-steps = <1000>;
default-brightness-level = <1000>;
};
panel: panel {
reg = <0>;
compatible = "panel-dpi";
backlight = <&backlight_lvds>;
width-mm = <154>;
height-mm = <86>;
bus-format = <0x1015>;
timing: panel-timing {
clock-frequency = <28000000>;
hactive = <480>;
hfront-porch = <26>;
hsync-len = <16>;
hback-porch = <10>;
hsync-active = <0>;
vactive = <640>;
vfront-porch = <25>;
vsync-len = <10>;
vback-porch = <16>;
vsync-active = <0>;
de-active = <1>;
pixelclk-active = <1>;
};
port {
panel_in: endpoint {
remote-endpoint = <&dpi_out>;
};
};
};
};
};
fragment@3 {
target = <&dpi>;
dpi_node: __overlay__ {
status = "okay";
pinctrl-names = "default";
/* refer to /home/pi/linux/arch/arm/boot/dts/bcm270x.dtsi
* for the pin multiplex setting
*/
pinctrl-0 = <&dpi_18bit_cpadhi_gpio0>;
port {
dpi_out: endpoint {
remote-endpoint = <&panel_in>;
};
};
};
};
};

5
recipes-bsp/waveshare-2.8-lcd/waveshare-2.8-lcd.bb
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@ -5,15 +5,16 @@ LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda
inherit devicetree
FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
SRC_URI = " file://dts/ads1115-i2c-gpio.dts "
SRC_URI = " file://dts/ads1115-i2c-gpio.dts file://vc4-kms-waveshare-28dpi.dts "
S = "${WORKDIR}/dts"
DT_FILES = "ads1115-i2c-gpio.dtbo"
DT_FILES = "ads1115-i2c-gpio.dtbo vc4-kms-waveshare-28dpi.dtbo"
COMPATIBLE_MACHINE = "raspberrypi.*"
do_deploy:append () {
install -d ${DEPLOY_DIR_IMAGE}
install -m 0755 ${B}/vc4-kms-waveshare-28dpi.dtbo ${DEPLOY_DIR_IMAGE}/vc4-kms-waveshare-28dpi.dtbo
install -m 0755 ${B}/ads1115-i2c-gpio.dtbo ${DEPLOY_DIR_IMAGE}/ads1115-i2c-gpio.dtbo
install -m 0755 ${THISDIR}/files/vc4-kms-DPI-28inch.dtbo ${DEPLOY_DIR_IMAGE}/vc4-kms-DPI-28inch.dtbo
install -m 0755 ${THISDIR}/files/waveshare-28dpi-3b-4b.dtbo ${DEPLOY_DIR_IMAGE}/waveshare-28dpi-3b-4b.dtbo

2
recipes-core/images/core-image-minimal.bbappend
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@ -1,6 +1,6 @@
inherit extrausers
KERNEL_DEVICETREE:append = "${@bb.utils.contains('RPI_USE_wS_28_DPI_LCD', '1', ' overlays/dpi24.dtbo overlays/vc4-kms-dpi-generic.dtbo overlays/ads1115-i2c-gpio.dtbo overlays/ads1115-i2c-gpio.dtbo overlays/vc4-kms-DPI-28inch.dtbo overlays/waveshare-28dpi-3b-4b.dtbo overlays/waveshare-28dpi-3b.dtbo overlays/waveshare-28dpi-4b.dtbo ', ' ', d)}"
KERNEL_DEVICETREE:append = "${@bb.utils.contains('RPI_USE_wS_28_DPI_LCD', '1', ' overlays/vc4-kms-waveshare-28dpi.dtbo overlays/dpi24.dtbo overlays/vc4-kms-dpi-generic.dtbo overlays/ads1115-i2c-gpio.dtbo overlays/ads1115-i2c-gpio.dtbo overlays/vc4-kms-DPI-28inch.dtbo overlays/waveshare-28dpi-3b-4b.dtbo overlays/waveshare-28dpi-3b.dtbo overlays/waveshare-28dpi-4b.dtbo ', ' ', d)}"
EXTRA_USERS_PARAMS = "usermod -p BJpK8ADNDLsGg root; \