linux-kernel - Re: [RESEND PATCH v2 1/5] dt-bindings: display: ti,am65x-dss: Add clk property for data edge synchronization

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Message-ID: <20251107-amaranth-platypus-from-betelgeuse-7673b9@kuoka>
Date: Fri, 7 Nov 2025 08:54:29 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Swamil Jain <s-jain1@...com>
Cc: jyri.sarha@....fi, tomi.valkeinen@...asonboard.com, 
	maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com, 
	simona@...ll.ch, nm@...com, vigneshr@...com, kristo@...nel.org, robh@...nel.org, 
	krzk+dt@...nel.org, conor+dt@...nel.org, lee@...nel.org, louis.chauvet@...tlin.com, 
	aradhya.bhatia@...ux.dev, devarsht@...com, praneeth@...com, h-shenoy@...com, 
	dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [RESEND PATCH v2 1/5] dt-bindings: display: ti,am65x-dss: Add
 clk property for data edge synchronization

On Thu, Nov 06, 2025 at 07:42:23PM +0530, Swamil Jain wrote:
> From: Louis Chauvet <louis.chauvet@...tlin.com>
> 
> The dt-bindings for the display, specifically ti,am65x-dss, need to
> include a clock property for data edge synchronization. The current

clock properties are called "clocks". Please rephrase commit msg or use
proper clocks to indicate you access here a clock (if that's the case).

> implementation does not correctly apply the data edge sampling property.

Where is "data edge sampling property"? I do not see it in this binding.

> 
> To address this, synchronization of writes to two different registers is

How this binding achieves that "synchronization"? What are you even
describing here?

> required: one in the TIDSS IP (which is already described in the tidss
> node) and one is in the Memory Mapped Control Register Modules.
> 
> As the Memory Mapped Control Register Modules is located in a different

And now another therm - MMCR...

This commit msg is barely parseable - language is correct but it is a
mix of completely wrong terms.

In case you used LLM to write this - don't. Ever.

> IP, we need to use a phandle to write values in its registers.
> 
> Fixes: ad2ac9dc9426 ("drm/tidss: Add support for AM625 DSS")
> Fixes: 5cc5ea7b6d7b ("drm/tidss: Add support for AM62A7 DSS")

You still did not describe the actual bug being fixed here.

> Cc: stable@...r.kernel.org

Best regards,
Krzysztof