linux-kernel - Re: [PATCH v3 1/4] soc: fsl: qmc: Only set completion interrupt when needed

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Message-ID: <20250821182307.2f7c8aeb@bootlin.com>
Date: Thu, 21 Aug 2025 18:23:07 +0200
From: Herve Codina <herve.codina@...tlin.com>
To: Christophe Leroy <christophe.leroy@...roup.eu>
Cc: Qiang Zhao <qiang.zhao@....com>, Shengjiu Wang
 <shengjiu.wang@...il.com>, Xiubo Li <Xiubo.Lee@...il.com>, Fabio Estevam
 <festevam@...il.com>, Nicolin Chen <nicoleotsuka@...il.com>, Liam Girdwood
 <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, Jaroslav Kysela
 <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
 linuxppc-dev@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-sound@...r.kernel.org
Subject: Re: [PATCH v3 1/4] soc: fsl: qmc: Only set completion interrupt
 when needed

Hi Christophe,

On Mon, 18 Aug 2025 10:20:00 +0200
Christophe Leroy <christophe.leroy@...roup.eu> wrote:

> When no post-completion processing is expected, don't waste time
> handling useless interrupts.
> 
> Only set QMC_BD_[R/T]X_I when a completion function is passed in,
> and perform seamless completion on submit for interruptless buffers.
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
> ---
>  drivers/soc/fsl/qe/qmc.c | 44 ++++++++++++++++++++++++++++++----------
>  1 file changed, 33 insertions(+), 11 deletions(-)
> 

Acked-by: Herve Codina <herve.codina@...tlin.com>

Best regards,
Hervé