On 19 December 2014 at 20:02, Doug Anderson [off-list ref] wrote:

Ulf,

On Fri, Dec 19, 2014 at 2:17 AM, Ulf Hansson [off-list ref] wrote:

quoted

On 3 December 2014 at 00:42, Doug Anderson [off-list ref] wrote:

quoted

Bing Zhao at Marvell found a problem with dw_mmc where interrupts
weren't firing sometimes.  He tracked it down to a read-modify-write
problem with the INTMASK.  These patches fix the problem.

Note: I've picked up a > 1-year old series here to make another
attempt at landing it upstream.  These patches have been in shipping
Chromebooks for the last year.  Note that v3 to v4 has no changes
other than a rebase and a small commit message update.

The first two patches extend the "init_card()" mechanism of MMC core
to actually be called for all card types, not just SDIO.  That could
be applied any time and should fix at least one longstanding bug
(untested).

The third patch is a cleanup patch to use init_card() to move things
around a bit so we don't need to handle SDIO cards in such a strange
place.  On earlier versions of this patch Seungwon brought up a few
points which I have _not_ addressed.  See
<https://patchwork.kernel.org/patch/3049071/>.  Other than talk of
cards with out of band interrupts maybe being able to gate their
clocks, he wanted to use MMC_QUIRK_BROKEN_CLK_GATING.  I didn't do
that because of the ordering of init_card() and when the quirks are
set.  Some users of init_card() like pandora_wl1251_init_card() rely
on it being called very early in the process.
pandora_wl1251_init_card() hardcodes a vendor and device and thus need
to be called super early.  On the other hand the code that adds quirks
_reads_ the vendor and device.  It can't possibly move before
init_card().  If folks are willing to take an additional host op of
init_card_late() I can certainly go that way, though.

The fourth patch is (I think) reviewed and ready to go assuming the
other two land.

I have queued this up for 3.20.

Thanks!

quoted

It was a bit hard to follow the
updated the revisions, please don't send patches "in-reply-to" for
future sets.

Very strange.  I didn't send out anything in-reply-to other than what
git-send-email usually does.  I believe I had:

[0] - no in reply to.
 [1] - in reply to [0]
 [2] - in reply to [0]
 [3] - in reply to [0]
 [4] - in reply to [0]

That's good. As long as there are no in-reply to previous versions of
patches/patchsets.

I am using gmails web-based client so it could very well be that it
does some magic, which I am not yet aware of.

Is there some other way you'd prefer?

Looking full headers in <https://patchwork.kernel.org/patch/5425241/>,
I confirm it is "in-reply-to"
"1417563767-32181-1-git-send-email-dianders at chromium.org".  Patchwork
doesn't keep cover letters, but you can see at
<http://www.spinics.net/lists/linux-mmc/msg29699.html>) that there is
no in-reply-to.

I'm more than happy to adjust my workflow if you can give me some
specifics.  Thanks!  :)

quoted

In v5, I don't find a patch 1/4. Anyway, I have taken patch 2->4.

Ah, maybe because it wasn't sent to linux-mmc?  I messed that up and
will try to do better in the future.  Sorry.  :(  You were in the To
line, though.  You can see at
<https://patchwork.kernel.org/patch/5425241/>.

Do you want me to repost it and CC linux-mmc with Tony's Ack?

I suggest you have a look at my next branch and to verify that I
haven't screwed things up. If so, either I should drop the patches and
you make a resend or if it's possible to just send an incremental path
on top?

Kind regards
Uffe

---

Note: patchwork seems to find all my patches:

pwclient list -w dianders at chromium.org -p ""

5425241 New          [v5,1/4] ARM: OMAP2+: Make sure
pandora_wl1251_init_card() applies to SDIO only
5425291 New          [v5,1/4] ARM: OMAP2+: Make sure
pandora_wl1251_init_card() applies to SDIO only
5425311 New          [v5,1/4] ARM: OMAP2+: Make sure
pandora_wl1251_init_card() applies to SDIO only
5425231 New          [v5,2/4] mmc: core: Support the optional
init_card() callback for MMC and SD
5425301 New          [v5,2/4] mmc: core: Support the optional
init_card() callback for MMC and SD
5425271 New          [v5,3/4] mmc: dw_mmc: Cleanup disable of low
power mode w/ SDIO interrupts
5425281 New          [v5,3/4] mmc: dw_mmc: Cleanup disable of low
power mode w/ SDIO interrupts
5425251 New          [v5,4/4] mmc: dw_mmc: Protect read-modify-write
of INTMASK with a lock
5425261 New          [v5,4/4] mmc: dw_mmc: Protect read-modify-write
of INTMASK with a lock