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test: dm: add video bridge tests

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Add tests for video bridge ops.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Svyatoslav Ryhel 2025-02-16 19:09:31 +02:00
parent 897b63d58c
commit da1eb50ca1
4 changed files with 116 additions and 0 deletions
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46
arch/sandbox/dts/test.dts
View file

@ -1047,6 +1047,31 @@
};
};
lvds-encoder {
compatible = "lvds-encoder";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
bridge_input: endpoint {
/* link to output */
};
};
port@1 {
reg = <1>;
bridge_output: endpoint {
remote-endpoint = <&panel_input>;
};
};
};
};
wdt-gpio-toggle {
gpios = <&gpio_a 8 0>;
compatible = "linux,wdt-gpio";
@ -1402,6 +1427,27 @@
panel {
compatible = "simple-panel";
backlight = <&backlight 0 100>;
display-timings {
timing@0 {
/* 1280x800@60Hz */
clock-frequency = <68000000>;
hactive = <1280>;
hfront-porch = <48>;
hback-porch = <18>;
hsync-len = <30>;
vactive = <800>;
vfront-porch = <3>;
vback-porch = <12>;
vsync-len = <5>;
};
};
port {
panel_input: endpoint {
remote-endpoint = <&bridge_output>;
};
};
};
scsi {

2
configs/sandbox_defconfig
View file

@ -328,6 +328,8 @@ CONFIG_USB_ETH_CDC=y
CONFIG_VIDEO=y
CONFIG_VIDEO_FONT_SUN12X22=y
CONFIG_VIDEO_COPY=y
CONFIG_VIDEO_BRIDGE=y
CONFIG_VIDEO_BRIDGE_LVDS_CODEC=y
CONFIG_CONSOLE_ROTATION=y
CONFIG_CONSOLE_TRUETYPE=y
CONFIG_CONSOLE_TRUETYPE_CANTORAONE=y

1
test/dm/Makefile
View file

@ -63,6 +63,7 @@ obj-$(CONFIG_SOUND) += i2s.o
obj-$(CONFIG_CLK_K210_SET_RATE) += k210_pll.o
obj-$(CONFIG_IOMMU) += iommu.o
obj-$(CONFIG_LED) += led.o
obj-$(CONFIG_VIDEO_BRIDGE_LVDS_CODEC) += video_bridge.o
obj-$(CONFIG_DM_MAILBOX) += mailbox.o
obj-$(CONFIG_DM_MDIO) += mdio.o
obj-$(CONFIG_DM_MDIO_MUX) += mdio_mux.o

67
test/dm/video_bridge.c Normal file
View file

@ -0,0 +1,67 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Test for video bridge uclass
*
* Copyright (c) 2025 Svyatoslav Ryhel <clamor95@gmail.com>
*/
#include <backlight.h>
#include <dm.h>
#include <panel.h>
#include <video.h>
#include <video_bridge.h>
#include <asm/gpio.h>
#include <asm/test.h>
#include <dm/test.h>
#include <power/regulator.h>
#include <test/test.h>
#include <test/ut.h>
/* Basic test of the video uclass, test is based on driven panel */
static int dm_test_video_bridge(struct unit_test_state *uts)
{
struct udevice *dev, *pwm, *gpio, *reg;
uint period_ns, duty_ns;
bool enable, polarity;
struct display_timing timing;
ut_assertok(uclass_first_device_err(UCLASS_VIDEO_BRIDGE, &dev));
ut_assertok(uclass_get_device_by_name(UCLASS_PWM, "pwm", &pwm));
ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio));
ut_assertok(regulator_get_by_platname("VDD_EMMC_1.8V", &reg));
ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
&enable, &polarity));
ut_asserteq(false, enable);
ut_asserteq(true, regulator_get_enable(reg));
/* bridge calls panel_enable_backlight() of panel */
ut_assertok(video_bridge_attach(dev));
ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
&enable, &polarity));
ut_asserteq(1000, period_ns);
ut_asserteq(170 * 1000 / 255, duty_ns);
ut_asserteq(true, enable);
ut_asserteq(false, polarity);
ut_asserteq(1, sandbox_gpio_get_value(gpio, 1));
ut_asserteq(true, regulator_get_enable(reg));
/* bridge calls panel_set_backlight() of panel */
ut_assertok(video_bridge_set_backlight(dev, BACKLIGHT_DEFAULT));
ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
&enable, &polarity));
ut_asserteq(true, enable);
ut_asserteq(170 * 1000 / 255, duty_ns);
/* bridge should be active */
ut_assertok(video_bridge_set_active(dev, true));
/* bridge is internal and has no hotplug gpio */
ut_asserteq(-ENOENT, video_bridge_check_attached(dev));
/* check passing timings and EDID */
ut_assertok(video_bridge_get_display_timing(dev, &timing));
ut_assertok(video_bridge_read_edid(dev, NULL, 0));
return 0;
}
DM_TEST(dm_test_video_bridge, UTF_SCAN_PDATA | UTF_SCAN_FDT);