linux-kernel - Re: [PATCH 1/3] i3c: master: Add inline i3c_master_readsl and i3c_master

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Message-ID: <aFXPXTUSvgj-a2zC@shikoro>
Date: Fri, 20 Jun 2025 23:15:09 +0200
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Jorge Marques <jorge.marques@...log.com>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Frank Li <Frank.Li@....com>,
	Przemysław Gaj <pgaj@...ence.com>,
	linux-i3c@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] i3c: master: Add inline i3c_master_readsl and
 i3c_master_writesl

On Fri, Jun 20, 2025 at 06:54:59PM +0200, Jorge Marques wrote:
> The i3c abstraction excepts u8 buffers, but some controllers have a bus
> width of 32-bits and don't support flagging valid bytes, so it is
> required to read/write long words and to use memcpy on the remainder of
> the number of bytes by 32-bits to not write/read outside the buffer
> bounds.
> 
> Signed-off-by: Jorge Marques <jorge.marques@...log.com>

Suggested-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

> + * i3c_master_writesl- Write bytes to long memory region from byte array

Frank proposed the name 'i3c_writel_fifo' which I like a tad better.
Opinions?


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