fwk: dogwood: blink 12V LED for 30 seconds if not detect 12V

The 12V LED should blink for 30 seconds, or until the user pushes
the power button again to attempt to transition to S0.

BRANCH=fwk-dogwood-27111
BUG=https://app.clickup.com/t/86ettgaw5
TEST=Disconnect JPSU1 and then press the power button
     check that LED2 is blinking for 30 seconds.
TEST=Continue from the previous step. Connect the JPSU1 and
     then press the power button to power on the system,
     the LED2 will stop blink and keep on,
TEST=Enter 5VSB and check the LED2 is off.

Signed-off-by: Josh Tsai <Josh_Tsai@compal.com>

Author: Josh-Tsai

zephyr/program/framework/dogwood/src/power_sequence.c

@@ -44,6 +44,9 @@
  */
 #define TIMEOUT_VS_POWER_TURN_OFF (20 * MSEC)
 
+#define POWER_12V_LED_BLINKING_PERIOD (500 * MSEC)
+#define POWER_12V_LED_BLINKING_SECOND(x) ((x * SECOND) / POWER_12V_LED_BLINKING_PERIOD)
+
 /*
  * Time to wait until turning off the power supply in low power
  * usage (like suspend).
@@ -371,7 +374,14 @@ void power_led2_blinking(void)
 
 	/* blink LED2 with 2 Hz */
 	gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_led2_drv), !!(tick++ % 2));
-	hook_call_deferred(&power_led2_blinking_data, 500 * MSEC);
+
+	if (tick < POWER_12V_LED_BLINKING_SECOND(30))
+		hook_call_deferred(&power_led2_blinking_data, POWER_12V_LED_BLINKING_PERIOD);
+	else {
+		/* Stop blinking the LED2 */
+		tick = 0;
+		gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_led2_drv), 0);
+	}
 }
 
 static void power_check_12vb_apu(void)
@@ -390,15 +400,12 @@ static void power_check_12vb_apu(void)
 	 * 12VB_APU is present or not to control the debug led2.
 	 */
 	if (voltage < 5000) {
-		if (!psu_is_supposed_to_be_on) {
-			/* Stop blinking the LED2 (G3) */
-			hook_call_deferred(&power_led2_blinking_data, -1);
-			gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_led2_drv), 0);
-		} else {
-			/* Start blinking the LED2 (S0 but 12V is not detected) */
-			power_led2_blinking();
-			set_diagnostic(DIAGNOSTICS_12V_OK, 1);
-		}
+		/* Start blinking the LED2 30 seconds */
+		power_led2_blinking();
+		set_diagnostic(DIAGNOSTICS_12V_OK, 1);
+	} else {
+		/* Stop blinking if the 12V is detected */
+		hook_call_deferred(&power_led2_blinking_data, -1);
 	}
 }