From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Stefan Eichenberger <eichest@gmail.com>
Cc: kernel@pengutronix.de, andi.shyti@kernel.org,
shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com,
Frank.Li@nxp.com, francesco.dolcini@toradex.com,
linux-i2c@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Stefan Eichenberger <stefan.eichenberger@toradex.com>
Subject: Re: [PATCH v2 3/4] i2c: imx: use readb_relaxed and writeb_relaxed
Date: Fri, 30 Aug 2024 09:37:14 +0200 [thread overview]
Message-ID: <ZtF2qj2cIjULy-RY@pengutronix.de> (raw)
In-Reply-To: <20240819072052.8722-4-eichest@gmail.com>
On Mon, Aug 19, 2024 at 09:19:09AM +0200, Stefan Eichenberger wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
>
> Use the relaxed version of readb and writeb to reduce overhead. It is
> safe to use the relaxed version because we either do not rely on dma
> completion, or we use a dma callback to ensure that the dma transfer is
> complete before we continue.
>
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Acked-by: Oleksij Rempel <o.rempel@pengutronix.de>
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next prev parent reply other threads:[~2024-08-30 7:37 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-19 7:19 [PATCH v2 0/4] i2c: imx: prevent rescheduling in non-dma mode Stefan Eichenberger
2024-08-19 7:19 ` [PATCH v2 1/4] i2c: imx: only poll for bus busy in multi master mode Stefan Eichenberger
2024-08-21 11:01 ` Fabio Estevam
2024-08-21 14:39 ` Oleksij Rempel
2024-08-21 15:23 ` Stefan Eichenberger
2024-08-21 16:43 ` Fabio Estevam
2024-08-21 22:31 ` Andi Shyti
2024-08-22 6:51 ` Oleksij Rempel
2024-08-22 11:07 ` Fabio Estevam
2024-08-22 11:50 ` Stefan Eichenberger
2024-08-22 12:59 ` Fabio Estevam
2024-08-23 13:43 ` Stefan Eichenberger
2024-08-21 22:21 ` Andi Shyti
2024-08-22 7:03 ` Stefan Eichenberger
2024-08-22 10:04 ` Oleksij Rempel
2024-08-22 12:03 ` Stefan Eichenberger
2024-08-23 0:35 ` Andi Shyti
2024-08-23 13:48 ` Stefan Eichenberger
2024-08-23 14:04 ` Oleksij Rempel
2024-08-23 14:42 ` Stefan Eichenberger
2024-08-19 7:19 ` [PATCH v2 2/4] i2c: imx: separate atomic, dma and non-dma use case Stefan Eichenberger
2024-08-30 7:31 ` Oleksij Rempel
2024-08-19 7:19 ` [PATCH v2 3/4] i2c: imx: use readb_relaxed and writeb_relaxed Stefan Eichenberger
2024-08-30 7:37 ` Oleksij Rempel [this message]
2024-08-19 7:19 ` [PATCH v2 4/4] i2c: imx: prevent rescheduling in non dma mode Stefan Eichenberger
2024-08-30 8:13 ` Oleksij Rempel
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