[PATCH] Documentation: leds-lp5523: describe master fader attributes

[PATCH] Documentation: leds-lp5523: describe master fader attributes

[Toshi Kikuchi]

Add the usage of the new attributes for master faders.

Signed-off-by: Toshi Kikuchi <toshik@chromium.org>
---
 Documentation/leds/leds-lp5523.txt | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/Documentation/leds/leds-lp5523.txt b/Documentation/leds/leds-lp5523.txt
index 5b3e91d..0dbbd27 100644
--- a/Documentation/leds/leds-lp5523.txt
+++ b/Documentation/leds/leds-lp5523.txt
@@ -49,6 +49,36 @@ There are two ways to run LED patterns.
 2) Firmware interface - LP55xx common interface
   For the details, please refer to 'firmware' section in leds-lp55xx.txt
 
+LP5523 has three master faders. If a channel is mapped to one of
+the master faders, its output is dimmed based on the value of the master
+fader.
+
+For example,
+
+  echo "123000123" > master_fader_leds
+
+creates the following channel-fader mappings:
+
+  channel 0,6 to master_fader1
+  channel 1,7 to master_fader2
+  channel 2,8 to master_fader3
+
+Then, to have 25% of the original output on channel 0,6:
+
+  echo 64 > master_fader1
+
+To have 0% of the original output (i.e. no output) channel 1,7:
+
+  echo 0 > master_fader2
+
+To have 100% of the original output (i.e. no dimming) on channel 2,8:
+
+  echo 255 > master_fader3
+
+To clear all master fader controls:
+
+  echo "000000000" > master_fader_leds
+
 Selftest uses always the current from the platform data.
 
 Each channel contains led current settings.
-- 
2.2.1.62.g3f15098

Re: [PATCH] Documentation: leds-lp5523: describe master fader attributes

[Kim, Milo]

On 5/13/2015 10:15 AM, Toshi Kikuchi wrote:
> Add the usage of the new attributes for master faders.
>
> Signed-off-by: Toshi Kikuchi <toshik@chromium.org>

Acked-by: Milo Kim <milo.kim@ti.com>

Best regards,
Milo

Re: [PATCH] Documentation: leds-lp5523: describe master fader attributes

[Jacek Anaszewski]

Hi Toshi,

On 05/13/2015 03:15 AM, Toshi Kikuchi wrote:
> Add the usage of the new attributes for master faders.
>
> Signed-off-by: Toshi Kikuchi <toshik@chromium.org>
> ---
>   Documentation/leds/leds-lp5523.txt | 30 ++++++++++++++++++++++++++++++
>   1 file changed, 30 insertions(+)

Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>

-- 
Best Regards,
Jacek Anaszewski

Re: [PATCH] Documentation: leds-lp5523: describe master fader attributes

[Bryan Wu]

On Wed, May 13, 2015 at 2:57 AM, Jacek Anaszewski
<j.anaszewski@samsung.com> wrote:
> Hi Toshi,
>
> On 05/13/2015 03:15 AM, Toshi Kikuchi wrote:
>>
>> Add the usage of the new attributes for master faders.
>>
>> Signed-off-by: Toshi Kikuchi <toshik@chromium.org>
>> ---
>>   Documentation/leds/leds-lp5523.txt | 30 ++++++++++++++++++++++++++++++
>>   1 file changed, 30 insertions(+)
>
>
> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
>

Merged with Milo and Jacek's Acks.

Thanks,
-Bryan