linux-kernel - Re: [PATCH v2 05/16] dt-bindings: display/msm: dp-controller: Add SM8750

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Message-ID: <h2shpen65r7v4in54avsez7qtlwojbt2cthyomqrsgs5ewprwb@bn53suqrzkac>
Date: Wed, 19 Feb 2025 19:08:18 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Rob Clark <robdclark@...il.com>, 
	Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, David Airlie <airlied@...il.com>, 
	Simona Vetter <simona@...ll.ch>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Krishna Manikandan <quic_mkrishn@...cinc.com>, 
	Jonathan Marek <jonathan@...ek.ca>, Kuogee Hsieh <quic_khsieh@...cinc.com>, 
	Neil Armstrong <neil.armstrong@...aro.org>, linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Srini Kandagatla <srinivas.kandagatla@...aro.org>
Subject: Re: [PATCH v2 05/16] dt-bindings: display/msm: dp-controller: Add
 SM8750

On Wed, Feb 19, 2025 at 06:02:20PM +0100, Krzysztof Kozlowski wrote:
> On 17/02/2025 19:58, Dmitry Baryshkov wrote:
> > On Mon, Feb 17, 2025 at 05:41:26PM +0100, Krzysztof Kozlowski wrote:
> >> Add DisplayPort controller for Qualcomm SM8750 SoC which so far looks
> >> fully compatible with earlier SM8650 variant.
> > 
> > As that became a question for QCS8300, does SM8750 also support exactly
> > two MST streams?
> 
> v1.5 of DP (starting from SA8775p , then SM8650 and SM8750) support 4x
> MST for DPTX0 and 2x MST for DPTX1.
> 
> The DP in SM8650 and SM8750 are identical, according to datasheet (v1.5.1).

Hmm. This also means that QCS8300 is compatible with SM8650. I'll let
Abhinav comment here.

-- 
With best wishes
Dmitry