linux-kernel - RE: [PATCH] spi: Raise limit on number of chip selects

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Message-ID: <7cadfe452f614e92be81d01111203a54@AcuMS.aculab.com>
Date: Wed, 24 Jan 2024 14:35:45 +0000
From: David Laight <David.Laight@...LAB.COM>
To: 'Jonas Gorski' <jonas.gorski@...il.com>, Guenter Roeck
	<linux@...ck-us.net>
CC: Mark Brown <broonie@...nel.org>, Christophe Leroy
	<christophe.leroy@...roup.eu>, Herve Codina <herve.codina@...tlin.com>, "Amit
 Kumar Mahapatra" <amit.kumar-mahapatra@....com>, "linux-spi@...r.kernel.org"
	<linux-spi@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, Thomas Petazzoni
	<thomas.petazzoni@...tlin.com>
Subject: RE: [PATCH] spi: Raise limit on number of chip selects

...
> For some reason we don't store neither the actual number of supported
> parallel chipselects in the controller, nor the amount of chipselects
> used by the spi device, so all loops always  need to iterate
> SPI_CS_CNT_MAX times and check for the chipselect numbers not being
> 0xff instead of limiting by the (possible to know) actual number of
> chip selects in use.

Or even the highest one ever used.

	David

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