X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=drivers%2Fleds%2Fleds-bcm6328.c;h=c7ea5c62633186294eff8046dba51c8865d06eab;hb=53528695ff6d8b77011bc818407c13e30914a946;hp=1793727bc9ae5f6c64467a68b4646b92e0963e1b;hpb=c2c80bdb9e91b412ea68f6dcc49c5d7b91e0b930;p=karo-tx-linux.git

diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index 1793727bc9ae..c7ea5c626331 100644
--- a/drivers/leds/leds-bcm6328.c
+++ b/drivers/leds/leds-bcm6328.c
@@ -41,6 +41,11 @@
 #define BCM6328_SERIAL_LED_SHIFT_DIR	BIT(16)
 #define BCM6328_LED_SHIFT_TEST		BIT(30)
 #define BCM6328_LED_TEST		BIT(31)
+#define BCM6328_INIT_MASK		(BCM6328_SERIAL_LED_EN | \
+					 BCM6328_SERIAL_LED_MUX  | \
+					 BCM6328_SERIAL_LED_CLK_NPOL | \
+					 BCM6328_SERIAL_LED_DATA_PPOL | \
+					 BCM6328_SERIAL_LED_SHIFT_DIR)
 
 #define BCM6328_LED_MODE_MASK		3
 #define BCM6328_LED_MODE_OFF		0
@@ -281,11 +286,10 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
 						    "linux,default-trigger",
 						    NULL);
 
+	spin_lock_irqsave(lock, flags);
 	if (!of_property_read_string(nc, "default-state", &state)) {
-		spin_lock_irqsave(lock, flags);
 		if (!strcmp(state, "on")) {
 			led->cdev.brightness = LED_FULL;
-			bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
 		} else if (!strcmp(state, "keep")) {
 			void __iomem *mode;
 			unsigned long val, shift;
@@ -296,21 +300,28 @@ static int bcm6328_led(struct device *dev, struct device_node *nc, u32 reg,
 			else
 				mode = mem + BCM6328_REG_MODE_LO;
 
-			val = bcm6328_led_read(mode) >> (shift % 16);
+			val = bcm6328_led_read(mode) >>
+			      BCM6328_LED_SHIFT(shift % 16);
 			val &= BCM6328_LED_MODE_MASK;
-			if (val == BCM6328_LED_MODE_ON)
+			if ((led->active_low && val == BCM6328_LED_MODE_ON) ||
+			    (!led->active_low && val == BCM6328_LED_MODE_OFF))
 				led->cdev.brightness = LED_FULL;
-			else {
+			else
 				led->cdev.brightness = LED_OFF;
-				bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
-			}
 		} else {
 			led->cdev.brightness = LED_OFF;
-			bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
 		}
-		spin_unlock_irqrestore(lock, flags);
+	} else {
+		led->cdev.brightness = LED_OFF;
 	}
 
+	if ((led->active_low && led->cdev.brightness == LED_FULL) ||
+	    (!led->active_low && led->cdev.brightness == LED_OFF))
+		bcm6328_led_mode(led, BCM6328_LED_MODE_ON);
+	else
+		bcm6328_led_mode(led, BCM6328_LED_MODE_OFF);
+	spin_unlock_irqrestore(lock, flags);
+
 	led->cdev.brightness_set = bcm6328_led_set;
 	led->cdev.blink_set = bcm6328_blink_set;
 
@@ -360,9 +371,17 @@ static int bcm6328_leds_probe(struct platform_device *pdev)
 	bcm6328_led_write(mem + BCM6328_REG_LNKACTSEL_LO, 0);
 
 	val = bcm6328_led_read(mem + BCM6328_REG_INIT);
-	val &= ~BCM6328_SERIAL_LED_EN;
+	val &= ~(BCM6328_INIT_MASK);
 	if (of_property_read_bool(np, "brcm,serial-leds"))
 		val |= BCM6328_SERIAL_LED_EN;
+	if (of_property_read_bool(np, "brcm,serial-mux"))
+		val |= BCM6328_SERIAL_LED_MUX;
+	if (of_property_read_bool(np, "brcm,serial-clk-low"))
+		val |= BCM6328_SERIAL_LED_CLK_NPOL;
+	if (!of_property_read_bool(np, "brcm,serial-dat-low"))
+		val |= BCM6328_SERIAL_LED_DATA_PPOL;
+	if (!of_property_read_bool(np, "brcm,serial-shift-inv"))
+		val |= BCM6328_SERIAL_LED_SHIFT_DIR;
 	bcm6328_led_write(mem + BCM6328_REG_INIT, val);
 
 	for_each_available_child_of_node(np, child) {
@@ -373,7 +392,7 @@ static int bcm6328_leds_probe(struct platform_device *pdev)
 			continue;
 
 		if (reg >= BCM6328_LED_MAX_COUNT) {
-			dev_err(dev, "invalid LED (>= %d)\n",
+			dev_err(dev, "invalid LED (%u >= %d)\n", reg,
 				BCM6328_LED_MAX_COUNT);
 			continue;
 		}
@@ -384,8 +403,10 @@ static int bcm6328_leds_probe(struct platform_device *pdev)
 			rc = bcm6328_led(dev, child, reg, mem, lock,
 					 blink_leds, blink_delay);
 
-		if (rc < 0)
+		if (rc < 0) {
+			of_node_put(child);
 			return rc;
+		}
 	}
 
 	return 0;