From: Krzysztof Kozlowski <krzk@kernel.org>
To: Arun Muthusamy <arun.muthusamy@gaisler.com>
Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
mkl@pengutronix.de, mailhol@kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-can@vger.kernel.org
Subject: Re: [PATCH 02/10] dt-bindings: net: can: grcan: Convert GRCAN CAN controllers binding from txt to YAML
Date: Thu, 18 Dec 2025 11:10:56 +0100 [thread overview]
Message-ID: <f57ccf4a-b43d-4de2-b745-3591cb18e730@kernel.org> (raw)
In-Reply-To: <0c4a38e1-29e9-4892-ad99-539dd889d4a8@gaisler.com>
On 24/11/2025 16:26, Arun Muthusamy wrote:
> Thank you for the review. I wish to clarify a few details concerning
> the DT binding and seek your guidance on the preferred approach
>
> On 11/18/2025 12:01 PM, Krzysztof Kozlowski wrote:
>>>> + Fallback on node name matching for systems that don't provide compatible.
>>>> + enum:
>>>> + - GAISLER_GRCAN
>>>> + - 01_03d
>>>> + - GAISLER_GRHCAN
>>>> + - "01_034"
>>> This does not really work. Are you really defining here "name" property?
>
> PROM-based LEON systems identify uses the "node name" property, while
> DTS-based NOEL systems use proper "|compatible"| strings.
>
No, either node name or name property. There is no such thing as node
name property.
> The updated schema now uses:
> properties:
> $nodename:
> pattern: "^(GAISLER_GRCAN|01_03d|GAISLER_GRHCAN|01_034)$"
So node name?
Anyway, names are wrong - they do not follow DTS coding style at all.
You need to come rationale why incorrect style has to be used.
>
> compatible:
> enum:
> - gaisler,grcan
> - gaisler,grcanfd
>
> Please advice me if its the preferred is a preferred way to describe or
> structure this dual-matching approach.
Nothing above usually - you need specific device compatible. I also do
not know what is the difference between one and another - in terms of
hardware (don't mention drivers please).
Best regards,
Krzysztof
next prev parent reply other threads:[~2025-12-18 10:11 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-18 9:21 [PATCH 00/10] can: grcan: Enhance driver with CANFD Support and Improvements Arun Muthusamy
2025-11-18 9:21 ` [PATCH 01/10] dt-bindings: Add vendor prefix for Frontgrade Gaisler AB Arun Muthusamy
2025-11-18 10:56 ` Krzysztof Kozlowski
2025-11-18 9:21 ` [PATCH 02/10] dt-bindings: net: can: grcan: Convert GRCAN CAN controllers binding from txt to YAML Arun Muthusamy
2025-11-18 11:01 ` Krzysztof Kozlowski
2025-11-24 9:37 ` Arun Muthusamy
2025-11-24 11:28 ` Krzysztof Kozlowski
2025-12-11 10:11 ` Arun Muthusamy
2025-12-18 10:12 ` Krzysztof Kozlowski
[not found] ` <0c4a38e1-29e9-4892-ad99-539dd889d4a8@gaisler.com>
2025-12-18 10:10 ` Krzysztof Kozlowski [this message]
2025-11-18 9:21 ` [PATCH 03/10] MAINTAINERS: Add entry for GRCAN CAN network driver Arun Muthusamy
2025-11-18 9:21 ` [PATCH 04/10] can: grcan: Add clock handling Arun Muthusamy
2025-11-18 11:01 ` Krzysztof Kozlowski
2025-11-24 9:46 ` Arun Muthusamy
2025-11-24 11:10 ` Krzysztof Kozlowski
2025-11-18 9:21 ` [PATCH 05/10] can: grcan: add FD capability detection and nominal bit-timing Arun Muthusamy
2025-11-21 10:52 ` Marc Kleine-Budde
2025-11-18 9:21 ` [PATCH 06/10] can: grcan: optimize DMA by 32-bit accesses Arun Muthusamy
2025-11-21 11:00 ` Marc Kleine-Budde
2025-11-18 9:21 ` [PATCH 07/10] can: grcan: set DMA mask for GRCAN and GRCANFD to 32-bit Arun Muthusamy
2025-11-21 12:46 ` Marc Kleine-Budde
2025-11-18 9:21 ` [PATCH 08/10] can: grcan: Add saving and restoring of CAN FD baud-rate registers Arun Muthusamy
2025-11-21 12:50 ` Marc Kleine-Budde
2025-12-11 9:13 ` Arun Muthusamy
2025-12-11 11:37 ` Marc Kleine-Budde
2025-11-18 9:21 ` [PATCH 09/10] can: grcan: Reserve space between cap and next register to align with address layout Arun Muthusamy
2025-11-18 9:21 ` [PATCH 10/10] can: grcan: Add CANFD support alongside legacy CAN Arun Muthusamy
2025-11-21 13:03 ` Marc Kleine-Budde
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