linux-kernel - [PATCH v2 0/3] tpm_tis: Clean up force module parameter

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Message-Id: <1448996309-15220-1-git-send-email-jgunthorpe@obsidianresearch.com>
Date:	Tue,  1 Dec 2015 11:58:26 -0700
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
	tpmdd-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Cc:	Martin Wilck <Martin.Wilck@...fujitsu.com>,
	Peter Huewe <peterhuewe@....de>,
	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Subject: [PATCH v2 0/3] tpm_tis: Clean up force module parameter

Drive the force=1 flow through the driver core. There are two main reasons to do this:
 1) To enable tpm_tis for OF environments requires a platform_device anyhow, so
    the probe/release code needs to be re-used for that.
 2) Recent changes in the core code break the assumption that a driver will be
    'attached' to things created through platform_device_register_simple,
    which causes the tpm core to blow up.

v2:
 - Make sure we request the mem resource in tpm_tis to avoid double-loading
   the driver
 - Re-order the init sequence so that a forced platform device gets first crack at
   loading, and excludes the other mechanisms via the above
 - Checkpatch clean
 - Gotos renamed

Martin, this should fix the double loading you noticed, please confirm.  There
is a possibility the force path needs a bit more code to be compatible with
devm_ioremap_resource, I'm not sure, hoping not.

Jason Gunthorpe (3):
  tpm_tis: Disable interrupt auto probing on a per-device basis
  tpm_tis: Use devm_ioremap_resource
  tpm_tis: Clean up the force=1 module parameter

 drivers/char/tpm/tpm_tis.c | 203 +++++++++++++++++++++++++++------------------
 1 file changed, 122 insertions(+), 81 deletions(-)

-- 
2.1.4

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