SPI not working on 5.10 and 5.11, bisected to 766c6b63aa04 ("spi: fix client driver breakages when using GPIO descriptors")

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From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Sven Van Asbroeck <thesven73@gmail.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Mark Brown <broonie@kernel.org>
Cc: linux-spi <linux-spi@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>
Subject: SPI not working on 5.10 and 5.11, bisected to 766c6b63aa04 ("spi: fix client driver breakages when using GPIO descriptors")
Date: Wed, 13 Jan 2021 09:49:12 +0100	[thread overview]
Message-ID: <dc5d8d35-31aa-b36d-72b0-17c8a7c13061@csgroup.eu> (raw)

Hello,

My board has powerpc 885 microcontroler. Temperature sensor is an LM74.

Kernel has CONFIG_SPI_FSL_SPI and CONFIG_SPI_FSL_CPM and CONFIG_SENSORS_LM70.

Since kernel 5.10, 'sensors' reports temperature 0°C on my board:

	root@vgoip:~# sensors

	lm74-spi-0-5
	Adapter: SPI adapter
	temp1:         +0.0 C

	lm74-spi-0-1
	Adapter: SPI adapter
	temp1:         +0.0 C

With commit 766c6b63aa04 ("spi: fix client driver breakages when using GPIO descriptors") reverted, 
it is back to work:

	root@vgoip:~# sensors

	lm74-spi-0-5
	Adapter: SPI adapter
	temp1:        +38.9 C

	lm74-spi-0-1
	Adapter: SPI adapter
	temp1:        +37.2 C


What shall I do ?

Thanks
Christophe

next             reply	other threads:[~2021-01-13  8:49 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-13  8:49 Christophe Leroy [this message]
2021-01-13 12:33 ` Mark Brown
2021-01-14 11:27   ` Christophe Leroy
2021-01-14 11:59     ` Mark Brown
2021-01-14 12:33       ` Christophe Leroy
2021-01-14 13:22         ` Mark Brown
2021-01-14 13:42           ` Christophe Leroy
2021-01-14 13:59             ` Mark Brown

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