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authorDario Binacchi <dariobin@libero.it>2020-10-11 14:28:04 +0200
committerAnatolij Gustschin <agust@denx.de>2020-10-18 15:07:33 +0200
commit76c2ff3e5fd8068b433acbb0e76d33fa5116dade (patch)
tree3baaf2748b10f35d80c1ee06477e63f1fba5d778 /test
parentf9b94055bdde93a302075ff86a1046b98e2c8e05 (diff)
video: backlight: fix pwm's duty cycle calculation
For levels equal to the maximum value, the duty cycle must be equal to the period. Signed-off-by: Dario Binacchi <dariobin@libero.it> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'test')
-rw-r--r--test/dm/panel.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/test/dm/panel.c b/test/dm/panel.c
index a840fb4951..49f5ac7169 100644
--- a/test/dm/panel.c
+++ b/test/dm/panel.c
@@ -40,7 +40,7 @@ static int dm_test_panel(struct unit_test_state *uts)
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(170 * 1000 / 255, duty_ns);
ut_asserteq(true, enable);
ut_asserteq(false, polarity);
ut_asserteq(1, sandbox_gpio_get_value(gpio, 1));
@@ -49,29 +49,29 @@ static int dm_test_panel(struct unit_test_state *uts)
ut_assertok(panel_set_backlight(dev, 40));
ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
&enable, &polarity));
- ut_asserteq(64 * 1000 / 256, duty_ns);
+ ut_asserteq(64 * 1000 / 255, duty_ns);
ut_assertok(panel_set_backlight(dev, BACKLIGHT_MAX));
ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
&enable, &polarity));
- ut_asserteq(255 * 1000 / 256, duty_ns);
+ ut_asserteq(255 * 1000 / 255, duty_ns);
ut_assertok(panel_set_backlight(dev, BACKLIGHT_MIN));
ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
&enable, &polarity));
- ut_asserteq(0 * 1000 / 256, duty_ns);
+ ut_asserteq(0 * 1000 / 255, duty_ns);
ut_asserteq(1, sandbox_gpio_get_value(gpio, 1));
ut_assertok(panel_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 / 256, duty_ns);
+ ut_asserteq(170 * 1000 / 255, duty_ns);
ut_assertok(panel_set_backlight(dev, BACKLIGHT_OFF));
ut_assertok(sandbox_pwm_get_config(pwm, 0, &period_ns, &duty_ns,
&enable, &polarity));
- ut_asserteq(0 * 1000 / 256, duty_ns);
+ ut_asserteq(0 * 1000 / 255, duty_ns);
ut_asserteq(0, sandbox_gpio_get_value(gpio, 1));
ut_asserteq(false, regulator_get_enable(reg));