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From: "Ivan T. Ivanov" <iivanov@mm-sol.com>
To: Stephen Boyd <sboyd@codeaurora.org>
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: Fri, 13 Feb 2015 12:28:45 +0800	[thread overview]
Message-ID: <1423801725.1241.1.camel@mm-sol.com> (raw)
In-Reply-To: <54DD7896.9020403@codeaurora.org>


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 :-)

Regards,
Ivan

  reply	other threads:[~2015-02-13  4:29 UTC|newest]

Thread overview: 20+ 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 ` [PATCH v2 2/2] leds: add Qualcomm PM8941 WLED driver Bjorn Andersson
2015-01-24  1:22   ` Bjorn Andersson
2015-01-29 12:48   ` Ivan T. Ivanov
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 [this message]
2015-02-13  4:34         ` Stephen Boyd
2015-02-17 23:05       ` Bjorn Andersson
2015-02-13  4:04   ` Stephen Boyd
2015-02-17 22:14     ` Bryan Wu
2015-02-17 22:30       ` Bjorn Andersson
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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