diff options
| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2017-07-18 09:26:59 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-08-26 20:26:35 -0400 |
| commit | 503dd28af108888c505e8d6a86f4acf5eb20f3b7 (patch) | |
| tree | dea246924c83804906a36d125b2d33f26af68de8 /drivers/leds/leds-max77693.c | |
| parent | 428359cbfe086f43cb84b7ab7b48e7e7862700e2 (diff) | |
media: v4l2-flash-led-class: Create separate sub-devices for indicators
The V4L2 flash interface allows controlling multiple LEDs through a single
sub-devices if, and only if, these LEDs are of different types. This
approach scales badly for flash controllers that drive multiple flash LEDs
or for LED specific associations. Essentially, the original assumption of a
LED driver chip that drives a single flash LED and an indicator LED is no
longer valid.
Address the matter by registering one sub-device per LED.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> (for greybus/light)
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/leds/leds-max77693.c')
| -rw-r--r-- | drivers/leds/leds-max77693.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/leds/leds-max77693.c b/drivers/leds/leds-max77693.c index 2d3062d53325..adf0f191f794 100644 --- a/drivers/leds/leds-max77693.c +++ b/drivers/leds/leds-max77693.c @@ -856,7 +856,7 @@ static void max77693_init_v4l2_flash_config(struct max77693_sub_led *sub_led, "%s %d-%04x", sub_led->fled_cdev.led_cdev.name, i2c_adapter_id(i2c->adapter), i2c->addr); - s = &v4l2_sd_cfg->torch_intensity; + s = &v4l2_sd_cfg->intensity; s->min = TORCH_IOUT_MIN; s->max = sub_led->fled_cdev.led_cdev.max_brightness * TORCH_IOUT_STEP; s->step = TORCH_IOUT_STEP; @@ -931,7 +931,7 @@ static int max77693_register_led(struct max77693_sub_led *sub_led, /* Register in the V4L2 subsystem. */ sub_led->v4l2_flash = v4l2_flash_init(dev, of_fwnode_handle(sub_node), - fled_cdev, NULL, &v4l2_flash_ops, + fled_cdev, &v4l2_flash_ops, &v4l2_sd_cfg); if (IS_ERR(sub_led->v4l2_flash)) { ret = PTR_ERR(sub_led->v4l2_flash); |