From: Krzysztof Kozlowski <krzk@kernel.org>
To: Shengjiu Wang <shengjiu.wang@gmail.com>
Cc: shengjiu.wang@oss.nxp.com, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, shengjiu.wang@nxp.com,
daniel.baluta@nxp.com, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, andersson@kernel.org,
mathieu.poirier@linaro.org, Frank.Li@nxp.com,
s.hauer@pengutronix.de, kernel@pengutronix.de,
festevam@gmail.com, p.zabel@pengutronix.de,
linux-remoteproc@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 1/4] dt-bindings: dsp: fsl,dsp: document debug reset control
Date: Mon, 9 Nov 2026 08:29:26 +0100 [thread overview]
Message-ID: <80990ab6-5072-43a2-b829-177c956080c6@kernel.org> (raw)
In-Reply-To: <CAA+D8AMxrUb-Pj74wrRn=vEyRUFKWWsR4Eq1LZ2ErsX=rRq=rA@mail.gmail.com>
On 09/11/2026 03:22, Shengjiu Wang wrote:
> On Fri, Nov 6, 2026 at 8:57 PM Krzysztof Kozlowski <krzk@kernel.org> wrote:
>>
>> On Thu, Nov 05, 2026 at 10:41:03AM +0800, shengjiu.wang@oss.nxp.com wrote:
>>> From: Shengjiu Wang <shengjiu.wang@nxp.com>
>>>
>>> The HiFi4 DSP provides a separate reset control for its debug logic.
>>> Keep this reset deasserted so that an external debug agent can access
>>> the DSP and perform debug operations.
>>>
>>> Also require the reset properties for the i.MX8ULP HiFi4 DSP.
>>
>> That's ABI break without explanation.
>>
>
> The i.MX8ULP HiFi4 DSP has not been enabled upstream before. This series
> adds the DSP node for the first time, so there should be no existing upstream
> DT relying on this compatible without the reset properties.
That does not change the fact that you break ABI, does it?
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-11-09 7:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-05 2:41 [PATCH v2 0/4] Enable DSP device for i.MX8ULP shengjiu.wang
2026-11-05 2:41 ` [PATCH v2 1/4] dt-bindings: dsp: fsl,dsp: document debug reset control shengjiu.wang
2026-11-06 12:52 ` Krzysztof Kozlowski
2026-11-09 2:22 ` Shengjiu Wang
2026-11-09 7:29 ` Krzysztof Kozlowski [this message]
2026-11-09 7:40 ` Shengjiu Wang
2026-11-05 2:41 ` [PATCH v2 2/4] remoteproc: imx_dsp_rproc: Add softreset and dbgreset handling shengjiu.wang
2026-11-05 2:41 ` [PATCH v2 3/4] arm64: dts: imx8ulp: add HiFi4 DSP node shengjiu.wang
2026-11-05 2:41 ` [PATCH v2 4/4] arm64: dts: imx8ulp-evk: Enable HiFi4 DSP shengjiu.wang
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