Re: [PATCH v2 1/2] arm64: dts: qcom: shikra-iqs-evk: Add LT9611UXD HDMI bridge support
From: Dmitry Baryshkov
Date: Wed Jul 22 2026 - 10:06:34 EST
On Sat, Jul 18, 2026 at 04:54:07PM +0530, Mohit Dsor wrote:
> On Fri, Jul 17, 2026 at 11:17:10AM +0200, Konrad Dybcio wrote:
> > On 7/16/26 9:30 PM, mohit.dsor@xxxxxxxxxxxxxxxx wrote:
> > > From: Mohit Dsor <mdsor@xxxxxxxxxxxxxxxx>
> > >
> > > Enable the Shikra MDSS display subsystem on the Qualcomm Shikra IQS
> > > EVK board and add the Lontium LT9611UXD DSI-to-HDMI bridge node.
> > >
> > > The LT9611UXD is connected via I2C (bus 4, address 0x41), powered by
> > > a GPIO-controlled 3.3V regulator (PM8150 GPIO4) and an always-on 1.8V
> > > rail. Reset is on GPIO76 and interrupt on GPIO85.
> > >
> > > The bridge receives DSI output from MDSS and drives an HDMI-A
> > > connector, with the link wired as: DPU -> DSI0 -> LT9611UXD -> HDMI.
> > >
> > > Signed-off-by: Mohit Dsor <mohit.dsor@xxxxxxxxxxxxxxxx>
> > > ---
> >
> > Does the other EVK not have this same hardware?
> Yes other variants have this hardware but only IQS variant has
> DS-HDMI as default, others have DLC panel as default.
By 'default' do you mean some DIP switches? If so, please consider
providing overlays for the bridge to be used on other variants of the
EVK.
> >
> > [...]
> >
> > > +&pm8150_l11 {
> > > + /* DSI VDDA - must be at NOM voltage for PHY PLL lock */
> >
> > This comment is superfluous
> This comment will be removed in next revision.
> >
> > Konrad
--
With best wishes
Dmitry