ddr: altera: stratix10: Add DDR support for Stratix10 SoC

[u-boot] / drivers / misc / pca9551_led.c

diff --git a/drivers/misc/pca9551_led.c b/drivers/misc/pca9551_led.c
index 79b1e20ccf1e12371d207ce6d42586d1307183d9..2333ec803829088c1c090e9b0b4d54a46b229439 100644 (file)
--- a/drivers/misc/pca9551_led.c
+++ b/drivers/misc/pca9551_led.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Stefan Roese <sr@denx.de>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -32,7 +31,10 @@ struct pca9551_blink_rate {
        u8 pwm; /* Pulse width modulation, see PCA9551_7.pdf p. 6 */
 };
 
-static int freq0, freq1;
+static int freq_last = -1;
+static int mask_last = -1;
+static int idx_last = -1;
+static int mode_last;
 
 static int pca9551_led_get_state(int led, int *state)
 {
@@ -113,11 +115,15 @@ static int pca9551_led_set_blink_rate(int idx, struct pca9551_blink_rate rate)
 }
 
 /*
- * Functions referenced by cmd_led.c
+ * Functions referenced by cmd_led.c or status_led.c
  */
+void __led_init(led_id_t id, int state)
+{
+}
+
 void __led_set(led_id_t mask, int state)
 {
-       if (state == STATUS_LED_OFF)
+       if (state == CONFIG_LED_STATUS_OFF)
                pca9551_led_set_state(mask, PCA9551_LED_STATE_OFF);
        else
                pca9551_led_set_state(mask, PCA9551_LED_STATE_ON);
@@ -135,21 +141,30 @@ void __led_blink(led_id_t mask, int freq)
 {
        struct pca9551_blink_rate rate;
        int mode;
-       int blink;
+       int idx;
 
-       if ((freq0 == 0) || (freq == freq0)) {
-               blink = 0;
-               mode = PCA9551_LED_STATE_BLINK0;
-               freq0 = freq;
+       if ((freq == freq_last) || (mask == mask_last)) {
+               idx = idx_last;
+               mode = mode_last;
        } else {
-               blink = 1;
-               mode = PCA9551_LED_STATE_BLINK1;
-               freq1 = freq;
+               /* Toggle blink index */
+               if (idx_last == 0) {
+                       idx = 1;
+                       mode = PCA9551_LED_STATE_BLINK1;
+               } else {
+                       idx = 0;
+                       mode = PCA9551_LED_STATE_BLINK0;
+               }
+
+               idx_last = idx;
+               mode_last = mode;
        }
+       freq_last = freq;
+       mask_last = mask;
 
        rate.psc = ((freq * 38) / 1000) - 1;
        rate.pwm = 128;         /* 50% duty cycle */
 
-       pca9551_led_set_blink_rate(blink, rate);
+       pca9551_led_set_blink_rate(idx, rate);
        pca9551_led_set_state(mask, mode);
 }