linux-kernel - Re: [PATCH] ricoh_mmc: Handle newer models of Ricoh controllers

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Date:	Wed, 26 Nov 2008 14:36:56 +0100
From:	Frans Pop <elendil@...net.nl>
To:	Philip Langdale <philipl@...rt.org>
Cc:	linux-kernel@...r.kernel.org, sdhci-devel@...t.drzeus.cx,
	drzeus@...eus.cx, fseidel@...e.de, weyland@...rary.ethz.ch,
	Matthew Garrett <mjg59@...f.ucam.org>
Subject: Re: [PATCH] ricoh_mmc: Handle newer models of Ricoh controllers

> The latest generation of laptops are shipping with a newer
> model of Ricoh chip where the firewire controller is the
> primary PCI function but a cardbus controller is also present.

Note that the current separate ricoh_mmc disabling module approach has 
been shown to break during suspend/resume. Matthew Garret proposed a 
patch for that which (with minor fixups) I tested successfully.

A fixed up version of Matthew's patch (not signed off) rebased against 
current mainline git is attached below. It does not include the changes 
proposed here.

Original bug report: http://lkml.org/lkml/2008/9/28/90
Matthew's analysis and patch: http://lkml.org/lkml/2008/9/29/87
Test results with patch: http://lkml.org/lkml/2008/9/29/195

Cheers,
FJP

View attachment "mmc.patch" of type "text/x-diff" (11573 bytes)