Re: [RESEND] [PATCH v2 2/4] dt-bindings: Add jdi lt070me05000 panel bindings

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Aug 24, 2016 at 05:53:00PM +0530, Vinay Simha wrote:
> if we do not set the polarity to 8mA, panel will have gibberish display.
> (information to set 8mA is available only in
> nexus7-msm-flo-3.4-lollipop-release_dsi kernel nx7 release)
> 
> i will add this
> reset-gpios = <&tlmm_pinmux 54 GPIO_ACTIVE_LOW>;

I don't think that will work with the current driver, because the GPIO
subsystem will automatically invert the value for you. Currently the
panel driver sets the GPIO value to 0 to assert the reset. With the
GPIO_ACTIVE_LOW flag you'd end up setting the actual level of the GPIO
to high, which is going to deassert. So I think if you make the above
change (which I think is the right thing to do), you'll also have to
update the driver to use high-active logic.

Thierry

Attachment: signature.asc
Description: PGP signature

_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel

[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux