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authorÁlvaro Fernández Rojas <noltari@gmail.com>2015-10-08 12:35:54 +0200
committerJacek Anaszewski <j.anaszewski@samsung.com>2015-11-03 08:59:44 +0100
commit9f82c778ce17789a038351a411ff65cd41033c7a (patch)
treea6aaeeb31a26452b9dad9b5290d9aaba069c8312 /drivers/leds
parentd8fe1606d1a7181c877d8b1727cdcfb82f76e91c (diff)
leds-bcm6328: add more init configuration options
This patch adds more init register configuration options: - Serial LEDs multiplexing. - Serial LEDs clock signal low/high polarity. - Serial LEDs data signal low/high polarity. - Serial LEDs shift direction inverted/normal. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds-bcm6328.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/leds/leds-bcm6328.c b/drivers/leds/leds-bcm6328.c
index bf063fae4ad0..18de0942c795 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
@@ -366,9 +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) {