linux-kernel - Re: [PATCH v2 2/3] spi: omap2-mcspi: Add support for MULTI-mode

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Message-ID: <8e5f3551-75c5-4211-84f6-18bbaf061dfb@sirena.org.uk>
Date: Mon, 25 Mar 2024 14:05:24 +0000
From: Mark Brown <broonie@...nel.org>
To: Louis Chauvet <louis.chauvet@...tlin.com>
Cc: linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	thomas.petazzoni@...tlin.com,
	Miquel Raynal <miquel.raynal@...tlin.com>, yen-mei.goh@...sight.com,
	koon-kee.lie@...sight.com, jeremie.dautheribes@...tlin.com
Subject: Re: [PATCH v2 2/3] spi: omap2-mcspi: Add support for MULTI-mode

On Fri, Feb 23, 2024 at 10:32:12AM +0100, Louis Chauvet wrote:
> Introduce support for MULTI-mode in the OMAP2 MCSPI driver. Currently, the
> driver always uses SINGLE mode to handle the chip select (CS). With this
> enhancement, MULTI-mode is enabled for specific messages, allowing for a
> shorter delay between CS enable and the message (some FPGA devices are
> sensitive to this delay).

This breaks an allmodconfig build:

/build/stage/linux/drivers/spi/spi-omap2-mcspi.c: In function ‘omap2_mcspi_prepare_message’:
/build/stage/linux/drivers/spi/spi-omap2-mcspi.c:1280:17: error: "/*" within comment [-Werror=comment]
 1280 |                 /*
      |                  
/build/stage/linux/drivers/spi/spi-omap2-mcspi.c:1265:14: error: unused variable ‘word_delay_is_zero’ [-Werror=unused-variable]
 1265 |         bool word_delay_is_zero;
      |              ^~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

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