From: Dan Murphy <dmurphy@ti.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>,
Rob Herring <robh@kernel.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <linux-leds@vger.kernel.org>,
<lee.jones@linaro.org>, <tony@atomide.com>
Subject: Re: [PATCH v4 2/7] dt-bindings: ti-lmu: Modify dt bindings for the LM3697
Date: Mon, 4 Mar 2019 13:14:04 -0600 [thread overview]
Message-ID: <46624fe6-c767-1872-c8c0-06cbf9a59e05@ti.com> (raw)
In-Reply-To: <20190302230725.GA9225@amd>
Pavel
On 3/2/19 5:07 PM, Pavel Machek wrote:
> Hi!
>
>> I just want to follow up here and let you know that I have not abandoned this.
>> I am trying to rework and fix up the ti lmu binding as asked by Pavel. Its proving
>> to be a bit of a challenge based on looking forward to what will be the implementation.
>>
>> I also did go offline and speak with Tony. I have a Droid 4 so I can test all of this on
>> production hardware as well.
>>
>> Updated patchset will take some time to get out.
>
> Is there any progress here?
>
> This is needed for display on Droid 4, so it is somehow
> important... and Milo Kim's patches are pretty reasonable.
>
> I still believe best way forward is to merge them, and let you submit
> any improvements on top of them...
>
I had looked at this a while back. And I will pick this up again as it seems that the
multi color framework will take longer than expected.
For the Droid 4 it uses the lm3552 backlight driver, at least that is what is in the DT.
There is a lm3530 backlight driver that is already available and could be upgraded to DT support and have the lm3552
added to it but the issues are the 3532 has 3 outputs and the 3530 has 1 and the register map is a bit different.
There are register differences between the two devices but the driver already has ramp support, PWM support (exponential/linear),
ALS support and manual support already available along with user space configuration.
I was working on creating a new lm3532 driver based off the lm3530 driver or adapting the 3530 to include the 3532 and
making the driver generic to this family.
Dan
> Best regards,
> Pavel
>
--
------------------
Dan Murphy
next prev parent reply other threads:[~2019-03-04 19:14 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-23 17:06 [PATCH v4 1/7] leds: add TI LMU backlight driver Dan Murphy
2018-10-23 17:06 ` [PATCH v4 2/7] dt-bindings: ti-lmu: Modify dt bindings for the LM3697 Dan Murphy
2018-10-24 9:04 ` Pavel Machek
2018-10-24 12:07 ` Dan Murphy
2018-10-24 13:43 ` Pavel Machek
2018-10-24 14:54 ` Rob Herring
2018-10-25 18:07 ` Dan Murphy
2018-10-25 18:27 ` Jacek Anaszewski
2018-10-25 18:32 ` Dan Murphy
2018-10-25 19:54 ` Rob Herring
2018-10-26 8:30 ` Pavel Machek
2018-10-26 8:37 ` Pavel Machek
2018-10-30 13:40 ` Dan Murphy
2019-03-02 23:07 ` Pavel Machek
2019-03-04 19:14 ` Dan Murphy [this message]
2018-10-24 14:49 ` Rob Herring
2018-10-25 17:56 ` Dan Murphy
2018-10-23 17:06 ` [PATCH v4 3/7] mfd: ti-lmu: Remove support for LM3697 Dan Murphy
2018-10-23 17:06 ` [PATCH v4 4/7] leds: lm3697: Introduce the lm3697 driver Dan Murphy
2018-10-23 17:06 ` [PATCH v4 5/7] dt-bindings: ti-lmu: Modify dt bindings for the LM3633 Dan Murphy
2018-10-24 9:23 ` Pavel Machek
2018-10-24 14:35 ` Rob Herring
2018-10-24 18:38 ` Pavel Machek
2018-10-24 21:50 ` Rob Herring
2018-10-25 18:01 ` Dan Murphy
2018-10-23 17:06 ` [PATCH v4 6/7] mfd: ti-lmu: Remove support for LM3633 Dan Murphy
2018-10-23 17:06 ` [PATCH v4 7/7] leds: lm3633: Introduce the lm3633 driver Dan Murphy
2018-10-24 9:14 ` [PATCH v4 1/7] leds: add TI LMU backlight driver Pavel Machek
2018-10-24 12:27 ` Dan Murphy
2018-10-24 13:17 ` Pavel Machek
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