commit 5620cf8ca7fae8067358cec6a18116c2749b4877
author Simon Glass <sjg@chromium.org> Mon Oct 01 12:22:40 2018 -0600
committer Simon Glass <sjg@chromium.org> Tue Oct 09 04:40:27 2018 -0600
tree 1ce98cc7c8752f59280d131a8ad0cb2c32ac6071
parent 4ed88a510bb86a8924ac17ca1099774c8f7ce196

test: panel: Add a test for the panel uclass

At present this uclass has no tests. Add a simple one which checks the PWM
configuration, regulator and GPIO.

Signed-off-by: Simon Glass <sjg@chromium.org>

test/dm/panel.c

diff --git a/test/dm/panel.c b/test/dm/panel.c
new file mode 100644
index 0000000..ca03240
--- /dev/null
+++ b/test/dm/panel.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Test for panel uclass
+ *
+ * Copyright (c) 2018 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <backlight.h>
+#include <dm.h>
+#include <panel.h>
+#include <video.h>
+#include <asm/gpio.h>
+#include <asm/test.h>
+#include <dm/test.h>
+#include <test/ut.h>
+#include <power/regulator.h>
+
+/* Basic test of the panel uclass */
+static int dm_test_panel(struct unit_test_state *uts)
+{
+	struct udevice *dev, *pwm, *gpio, *reg;
+	uint period_ns;
+	uint duty_ns;
+	bool enable;
+	bool polarity;
+
+	ut_assertok(uclass_first_device_err(UCLASS_PANEL, &dev));
+	ut_assertok(uclass_first_device_err(UCLASS_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(false, regulator_get_enable(reg));
+
+	ut_assertok(panel_enable_backlight(dev));
+	ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
+					   &enable, &polarity));
+	ut_asserteq(1000, period_ns);
+	ut_asserteq(170 * 1000 / 256, 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));
+
+	return 0;
+}
+DM_TEST(dm_test_panel, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);