... > 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 - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
RE: [PATCH] spi: Raise limit on number of chip selects
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- Subject: RE: [PATCH] spi: Raise limit on number of chip selects
- From: David Laight <David.Laight@xxxxxxxxxx>
- Date: Wed, 24 Jan 2024 14:35:45 +0000
- Accept-language: en-GB, en-US
- Cc: Mark Brown <broonie@xxxxxxxxxx>, Christophe Leroy <christophe.leroy@xxxxxxxxxx>, Herve Codina <herve.codina@xxxxxxxxxxx>, "Amit Kumar Mahapatra" <amit.kumar-mahapatra@xxxxxxx>, "linux-spi@xxxxxxxxxxxxxxx" <linux-spi@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxx>
- In-reply-to: <CAOiHx=mM7kpzR-MOshsgXZM+CSB0nawfWxMhpt=tuhmJyMTCzQ@mail.gmail.com>
- References: <20240122-spi-multi-cs-max-v1-1-a7e98cd5f6c7@kernel.org> <20240123120430.75c7ace0@bootlin.com> <cefafa30-b78d-471b-83e0-b05060d806d4@sirena.org.uk> <93385fc2-7596-4f66-b0c1-07d7d5c9ed8d@csgroup.eu> <49b52941-6205-48bd-b2ae-e334018ac5cd@sirena.org.uk> <CAOiHx==FzSyyqP3NzLTeOSVxUQYy3ZhypZrDLsc-OjGCdSzvUA@mail.gmail.com> <801eecbe-4bf9-4bb8-9de0-1a7ca6673ddf@roeck-us.net> <CAOiHx=mM7kpzR-MOshsgXZM+CSB0nawfWxMhpt=tuhmJyMTCzQ@mail.gmail.com>
- References:
- [PATCH] spi: Raise limit on number of chip selects
- From: Mark Brown
- Re: [PATCH] spi: Raise limit on number of chip selects
- From: Herve Codina
- Re: [PATCH] spi: Raise limit on number of chip selects
- From: Mark Brown
- Re: [PATCH] spi: Raise limit on number of chip selects
- From: Christophe Leroy
- Re: [PATCH] spi: Raise limit on number of chip selects
- From: Mark Brown
- Re: [PATCH] spi: Raise limit on number of chip selects
- From: Jonas Gorski
- Re: [PATCH] spi: Raise limit on number of chip selects
- From: Guenter Roeck
- Re: [PATCH] spi: Raise limit on number of chip selects
- From: Jonas Gorski
- [PATCH] spi: Raise limit on number of chip selects
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