linux-kernel - Re: [PATCH v2 1/2] leds: Add Intel Cherry Trail Whiskey Cove PMIC LEDs

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Message-ID: <079efdd4-2259-1e6f-48dd-5876f2bd7a93@redhat.com>
Date:   Thu, 14 Feb 2019 11:04:44 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     Yauhen Kharuzhy <jekhor@...il.com>, linux-kernel@...r.kernel.org,
        linux-leds@...r.kernel.org
Subject: Re: [PATCH v2 1/2] leds: Add Intel Cherry Trail Whiskey Cove PMIC
 LEDs

Hi,

On 13-02-19 23:43, Hans de Goede wrote:
> Hi,
> 
> On 12-02-19 21:59, Yauhen Kharuzhy wrote:
>> Add support for LEDs connected to the Intel Cherry Trail Whiskey Cove
>> PMIC. Charger and general-purpose leds are supported. Hardware blinking
>> is implemented, breathing is not.
>>
>> This driver was tested with Lenovo Yoga Book notebook.

<snip>

> Note that in my experience the "charging" mode only works
> when bits 0-1 have the value 10.

Ok, scrap that I don't know where this info in my notes
came from (probably user error), the power-on-reset
value for bits 0-1 is 00 and then the hw controls the
charging LED just fine. So your code is right, bit 0
switches between hw-control (0) and user-control (1) and
bit 1 is on/off when user-control is enabled.

Regards,

Hans