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Date:   Sat, 31 Oct 2020 11:34:27 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Chris Clayton <chris2553@...glemail.com>
Cc:     ricky_wu@...ltek.com, arnd@...db.de, bhelgaas@...gle.com,
        vaibhavgupta40@...il.com, rui_feng@...lsil.com.cn, kdlnx@...h.eu,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] misc: rtsx: do not setting OC_POWER_DOWN reg in
 rtsx_pci_init_ocp()

On Thu, Oct 15, 2020 at 07:20:34PM +0100, Chris Clayton wrote:
> Hi Greg,
> 
> On 18/09/2020 15:35, Chris Clayton wrote:
> > Mmm, gmail on android seems to have snuck some html into my reply, so here goes again...
> > 
> > On 14/09/2020 16:58, Greg KH wrote:
> >> On Sun, Sep 13, 2020 at 09:40:56AM +0100, Chris Clayton wrote:
> >>> Hi Greg and Arnd,
> >>>
> >>> On 24/08/2020 04:00, ricky_wu@...ltek.com wrote:
> >>>> From: Ricky Wu <ricky_wu@...ltek.com>
> >>>>
> >>>> this power saving action in rtsx_pci_init_ocp() cause INTEL-NUC6 platform
> >>>> missing card reader
> >>>>
> >>>
> >>> In his changelog above, Ricky didn't mention that this patch fixes a regression that was introduced (in 5.1) by commit
> >>> bede03a579b3.
> >>>
> >>> The patch that I posted to LKML contained the appropriate Fixes, etc tags. After discussion, the patch was changed to
> >>> remove the code that effectively disables the RTS5229 cardreader on (at least some) Intel NUC boxes. I prepared the
> >>> patch that Ricky submitted but he didn't include my Signed-off-by or the Fixes tag. I think the following needs to be
> >>> added to the changelog.
> >>>
> >>> Fixes: bede03a579b3 ("misc: rtsx: Enable OCP for rts522a rts524a rts525a rts5260")
> >>> Link: https://marc.info/?l=linux-kernel&m=159105912832257
> >>> Link: https://bugzilla.kernel.org/show_bug.cgi?id=204003
> >>> Signed-off-by: Chris Clayton <chris2553@...glemail.com>
> >>>
> >>> bede03a579b3 introduced a bug which leaves the rts5229 PCI Express card reader on the Intel NUC6CAYH box.
> >>>
> >>> My main point, however, is that the patch is also needed in the 5.4 (longterm) and 5.8 (stable) series kernels.
> >>
> >> It's too late to change the commit log now that it is in my tree, but
> >> once it hits Linus's tree for 5.9-rc1, I can backport it to those stable
> >> trees if someone reminds me :)
> >>
> 
> This is the reminder you suggested. The patch is now in Linus's tree and the commit id is
> 551b6729578a8981c46af964c10bf7d5d9ddca83.

Now queued up, thanks.

greg k-h

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