From: Stephen Boyd <sboyd@codeaurora.org>
To: "Ivan T. Ivanov" <iivanov@mm-sol.com>
Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>, Bryan Wu <cooloney@gmail.com>,
Richard Purdie <rpurdie@rpsys.net>,
Grant Likely <grant.likely@linaro.org>,
Courtney Cavin <courtney.cavin@sonymobile.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-leds@vger.kernel.org, linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH v2 2/2] leds: add Qualcomm PM8941 WLED driver
Date: Thu, 12 Feb 2015 20:34:20 -0800 [thread overview]
Message-ID: <54DD7ECC.5020504@codeaurora.org> (raw)
In-Reply-To: <1423801725.1241.1.camel@mm-sol.com>
On 02/12/15 20:28, Ivan T. Ivanov wrote:
> On Thu, 2015-02-12 at 20:07 -0800, Stephen Boyd wrote:
>> On 01/29/15 04:48, Ivan T. Ivanov wrote:
>>> Otherwise it looks good. Driver is loaded and device is detected
>>> properly (i have added readings for type and subtype registers).
>>> Do you know where I can measure result from changing brightness
>>> sysfs entry. I am using 8074 dragonboard?
>> Does the backlight turn on? From what I can tell it controls the
>> backlight, but it may be that nothings getting displayed so it won't be
>> noticeable.
>>
> Yes, I can not see visual changes. That is why I have asked where
> I could hook the probe and measure current change or wherever.
> BL_WLEDx signals go out from J2, but somehow I was unable to
> locate it on the board, will try to look harder :-)
>
>
When the screen is "off" in android I can still turn on the brightness
to max in sysfs and see the screen glow. Hopefully we don't need
something else to make that work.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2015-02-13 4:34 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-24 0:54 [PATCH v2 1/2] leds: add DT binding for Qualcomm PM8941 WLED block Bjorn Andersson
2015-01-24 0:54 ` Bjorn Andersson
2015-01-24 0:54 ` [PATCH v2 2/2] leds: add Qualcomm PM8941 WLED driver Bjorn Andersson
2015-01-24 0:54 ` Bjorn Andersson
2015-01-24 1:22 ` Bjorn Andersson
[not found] ` <1422060853-1067-2-git-send-email-bjorn.andersson-/MT0OVThwyLZJqsBc5GL+g@public.gmane.org>
2015-01-29 12:48 ` Ivan T. Ivanov
2015-01-29 12:48 ` Ivan T. Ivanov
[not found] ` <1422535712.28891.3.camel-NEYub+7Iv8PQT0dZR+AlfA@public.gmane.org>
2015-01-29 19:07 ` Bjorn Andersson
2015-01-29 19:07 ` Bjorn Andersson
2015-02-12 19:20 ` Bryan Wu
2015-02-13 4:07 ` Stephen Boyd
2015-02-13 4:28 ` Ivan T. Ivanov
2015-02-13 4:34 ` Stephen Boyd [this message]
2015-02-17 23:05 ` Bjorn Andersson
2015-02-13 4:04 ` Stephen Boyd
2015-02-17 22:14 ` Bryan Wu
[not found] ` <CAK5ve-KJK_aT_8sVmhtnTTJRZpdAvSGc45dtH-XH-E59wB=jXQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-02-17 22:30 ` Bjorn Andersson
2015-02-17 22:30 ` Bjorn Andersson
[not found] ` <CAJAp7OgkY+zsp_Yfgnri2H7yv8xrwVMR9UugFv8oEh4x-Fs82g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-02-17 22:32 ` Bryan Wu
2015-02-17 22:32 ` Bryan Wu
2015-02-17 23:13 ` Bjorn Andersson
2015-02-13 4:26 ` Stephen Boyd
2015-02-17 23:02 ` Bjorn Andersson
2015-02-18 2:45 ` Stephen Boyd
2015-02-18 14:54 ` Bjorn Andersson
2015-02-12 19:11 ` [PATCH v2 1/2] leds: add DT binding for Qualcomm PM8941 WLED block Bryan Wu
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