linux-kernel - spi_topcliff

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Date:	Tue, 22 Feb 2011 10:22:11 +0900
From:	"Tomoya MORINAGA" <morinaga526@....okisemi.com>
To:	"'David Brownell'" <dbrownell@...rs.sourceforge.net>,
	"'Grant Likely'" <grant.likely@...retlab.ca>,
	<spi-devel-general@...ts.sourceforge.net>,
	<linux-kernel@...r.kernel.org>
Cc:	<qi.wang@...el.com>, <yong.y.wang@...el.com>,
	<joel.clark@...el.com>, <kok.howg.ewe@...el.com>,
	"Toshiharu Okada" <toshiharu-linux@....okisemi.com>
Subject: spi_topcliff_pch: reload issue

Hi,

issue: after reload the spi module, it can't do SPI communication.

We have faced issue when execute the following command.
insmod xxx.ko(Then, /dev/spidev0.0 is created with success)
rmmod xxx.ko (Then, /dev/spidev0.0 is deleted with success)
insmod xxx.ko(Then, /dev/spidev0.0 is created, however, below error message is showed)

  0000:02:0c.1: registered master spi0
  0000:02:0c.1: chipselect 0 already in use
  0000:02:0c.1: can't create new device for spidev

Do you have any information about the above ?

kernel=2.6.37 on FC14

With Best Regards,
-----------------------------------------
Tomoya MORINAGA
OKI SEMICONDUCTOR CO., LTD.

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