Allow overwriting the values in BD718XX_REG_PWRONCONFIG0 and
BD718XX_REG_PWRONCONFIG1 via devicetree.
Keep existing values (from bootloader or OTP) if property is not
present.
Signed-off-by: Leonard Crestez <leonard.crestez@xxxxxxx>
---
drivers/mfd/rohm-bd718x7.c | 42 ++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/drivers/mfd/rohm-bd718x7.c b/drivers/mfd/rohm-bd718x7.c
index cdbef83884f0..dffa3f4bffad 100644
--- a/drivers/mfd/rohm-bd718x7.c
+++ b/drivers/mfd/rohm-bd718x7.c
@@ -79,10 +79,48 @@ static const struct regmap_config bd718xx_regmap_config = {
.volatile_table = &volatile_regs,
.max_register = BD718XX_MAX_REGISTER - 1,
.cache_type = REGCACHE_RBTREE,
};
+static int bd718xx_init_press_duration(struct bd718xx *bd718xx)
+{
+ struct device* dev = bd718xx->dev;
+ u32 short_press_ms, long_press_ms;
+ u32 short_press_value, long_press_value;
+ int ret;
+
+ ret = of_property_read_u32(dev->of_node, "rohm,short-press-ms",
+ &short_press_ms);
+ if (!ret) {
+ short_press_value = min(15u, short_press_ms / 500);
+ ret = regmap_update_bits(bd718xx->regmap,
+ BD718XX_REG_PWRONCONFIG0,
+ BD718XX_PWRBTN_PRESS_DURATION_MASK,
+ short_press_value);
+ if (ret) {
+ dev_err(dev, "Failed to init pwron short press\n");
+ return ret;
+ }
+ }
+
+ ret = of_property_read_u32(dev->of_node, "rohm,long-press-ms",
+ &long_press_ms);
+ if (!ret) {
+ long_press_value = min(15u, long_press_ms / 1000);
+ ret = regmap_update_bits(bd718xx->regmap,
+ BD718XX_REG_PWRONCONFIG1,
+ BD718XX_PWRBTN_PRESS_DURATION_MASK,
+ long_press_value);
+ if (ret) {
+ dev_err(dev, "Failed to init pwron long press\n");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
static int bd718xx_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct bd718xx *bd718xx;
int ret;
@@ -115,10 +153,14 @@ static int bd718xx_i2c_probe(struct i2c_client *i2c,
if (ret) {
dev_err(&i2c->dev, "Failed to add irq_chip\n");
return ret;
}
+ ret = bd718xx_init_press_duration(bd718xx);
+ if (ret)
+ return ret;
+
ret = regmap_irq_get_virq(bd718xx->irq_data, BD718XX_INT_PWRBTN_S);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to get the IRQ\n");
return ret;
--
2.17.1
