From 6559ac32998248182572e1ccae79dc2eb40ac7c6 Mon Sep 17 00:00:00 2001 From: Dan Murphy Date: Tue, 20 Aug 2019 14:53:05 -0500 Subject: leds: lm3532: Fixes for the driver for stability Fixed misspelled words, added error check during probe on the init of the registers, and fixed ALS/I2C control mode. Fixes: bc1b8492c764 ("leds: lm3532: Introduce the lm3532 LED driver") Reported-by: Pavel Machek Signed-off-by: Dan Murphy Acked-by: Pavel Machek Signed-off-by: Jacek Anaszewski --- drivers/leds/leds-lm3532.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'drivers/leds') diff --git a/drivers/leds/leds-lm3532.c b/drivers/leds/leds-lm3532.c index 0c3d67671ab2..5e33ae4561f2 100644 --- a/drivers/leds/leds-lm3532.c +++ b/drivers/leds/leds-lm3532.c @@ -43,7 +43,7 @@ #define LM3532_REG_ZONE_TRGT_C 0x7a #define LM3532_REG_MAX 0x7e -/* Contorl Enable */ +/* Control Enable */ #define LM3532_CTRL_A_ENABLE BIT(0) #define LM3532_CTRL_B_ENABLE BIT(1) #define LM3532_CTRL_C_ENABLE BIT(2) @@ -307,7 +307,7 @@ static int lm3532_led_disable(struct lm3532_led *led_data) int ret; ret = regmap_update_bits(led_data->priv->regmap, LM3532_REG_ENABLE, - ctrl_en_val, ~ctrl_en_val); + ctrl_en_val, 0); if (ret) { dev_err(led_data->priv->dev, "Failed to set ctrl:%d\n", ret); return ret; @@ -326,7 +326,7 @@ static int lm3532_brightness_set(struct led_classdev *led_cdev, mutex_lock(&led->priv->lock); - if (led->mode == LM3532_BL_MODE_ALS) { + if (led->mode == LM3532_ALS_CTRL) { if (brt_val > LED_OFF) ret = lm3532_led_enable(led); else @@ -561,11 +561,14 @@ static int lm3532_parse_node(struct lm3532_data *priv) } if (led->mode == LM3532_BL_MODE_ALS) { + led->mode = LM3532_ALS_CTRL; ret = lm3532_parse_als(priv); if (ret) dev_err(&priv->client->dev, "Failed to parse als\n"); else lm3532_als_configure(priv, led); + } else { + led->mode = LM3532_I2C_CTRL; } led->num_leds = fwnode_property_count_u32(child, "led-sources"); @@ -606,7 +609,13 @@ static int lm3532_parse_node(struct lm3532_data *priv) goto child_out; } - lm3532_init_registers(led); + ret = lm3532_init_registers(led); + if (ret) { + dev_err(&priv->client->dev, "register init err: %d\n", + ret); + fwnode_handle_put(child); + goto child_out; + } i++; } -- cgit