diff options
| -rw-r--r-- | drivers/leds/blink/leds-bcm63138.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/leds/blink/leds-bcm63138.c b/drivers/leds/blink/leds-bcm63138.c index 374f68f4f277..9fe1af156c80 100644 --- a/drivers/leds/blink/leds-bcm63138.c +++ b/drivers/leds/blink/leds-bcm63138.c @@ -2,6 +2,7 @@ /* * Copyright (C) 2021 Rafał Miłecki <rafal@milecki.pl> */ +#include <linux/bits.h> #include <linux/cleanup.h> #include <linux/delay.h> #include <linux/io.h> @@ -254,6 +255,7 @@ static int bcm63138_leds_probe(struct platform_device *pdev) struct device_node *np = dev_of_node(&pdev->dev); struct device *dev = &pdev->dev; struct bcm63138_leds *leds; + u32 shift_bits; leds = devm_kzalloc(dev, sizeof(*leds), GFP_KERNEL); if (!leds) @@ -267,6 +269,12 @@ static int bcm63138_leds_probe(struct platform_device *pdev) spin_lock_init(&leds->lock); + /* If this property is not present, we use boot defaults */ + if (!of_property_read_u32(np, "brcm,serial-shift-bits", &shift_bits)) { + bcm63138_leds_write(leds, BCM63138_SERIAL_LED_SHIFT_SEL, + GENMASK(shift_bits - 1, 0)); + } + bcm63138_leds_write(leds, BCM63138_GLB_CTRL, BCM63138_GLB_CTRL_SERIAL_LED_DATA_PPOL | BCM63138_GLB_CTRL_SERIAL_LED_EN_POL); |