linux-toradex.git/drivers/mmc, branch v3.4.10

mmc: sdhci: fix incorrect command used in tuning

2012-08-09T15:31:27+00:00

commit 473b095a72a95ba719905b1f2e82cd18d099a427 upstream.

For SD hosts using retuning mode 1, when retuning timer expired, it will
need to do retuning in sdhci_request before processing the actual
request. But the retuning command is fixed: cmd19 for SD card and cmd21
for eMMC card, so we can't use the original request's command to do the
tuning.

And since the tuning command depends on the card type attached to the
host, we will need to know the card type to use the correct tuning
command.

Signed-off-by: Aaron Lu 
Reviewed-by: Philip Rakity 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: sdhci-pci: CaFe has broken card detection

2012-08-09T15:31:26+00:00

commit 55fc05b7414274f17795cd0e8a3b1546f3649d5e upstream.

At http://dev.laptop.org/ticket/11980 we have determined that the
Marvell CaFe SDHCI controller reports bad card presence during
resume. It reports that no card is present even when it is.
This is a regression -- resume worked back around 2.6.37.

Around 400ms after resuming, a "card inserted" interrupt is
generated, at which point it starts reporting presence.

Work around this hardware oddity by setting the
SDHCI_QUIRK_BROKEN_CARD_DETECTION flag.
Thanks to Chris Ball for helping with diagnosis.

Signed-off-by: Daniel Drake 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: omap_hsmmc: pass IRQF_ONESHOT to request_threaded_irq

2012-06-01T07:18:27+00:00

commit db35f83ef47b5f180f2670d11f5f93992314ea09 upstream.

The flag of IRQF_ONESHOT should be passed to request_threaded_irq,
otherwise the following failure message should be dumped because
hardware handler is defined as NULL:

[    3.383483] genirq: Threaded irq requested with handler=NULL and
!ONESHOT for irq 368
[    3.392730] omap_hsmmc: probe of omap_hsmmc.0 failed with error -22

The patch fixes one kernel hang bug which is caused by mmc card
probe failure and root device can't be brought up.

Signed-off-by: Ming Lei 
Acked-by: Venkatraman S 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: cd-gpio: protect against NULL context in mmc_cd_gpio_free()

2012-06-01T07:18:27+00:00

commit 0e9f480bb553d39ee06ccd45639ba7a5446a7b81 upstream.

Do not oops, even if mmc_cd_gpio_free() is mistakenly called on a driver
cleanup path, even though a previous call to mmc_cd_gpio_request() failed.

Signed-off-by: Guennadi Liakhovetski 
[stable@: please apply to 3.3-stable]
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: sdio: avoid spurious calls to interrupt handlers

2012-06-01T07:18:26+00:00

commit bbbc4c4d8c5face097d695f9bf3a39647ba6b7e7 upstream.

Commit 06e8935feb ("optimized SDIO IRQ handling for single irq")
introduced some spurious calls to SDIO function interrupt handlers,
such as when the SDIO IRQ thread is started, or the safety check
performed upon a system resume.  Let's add a flag to perform the
optimization only when a real interrupt is signaled by the host
driver and we know there is no point confirming it.

Reported-by: Sujit Reddy Thumma 
Signed-off-by: Nicolas Pitre 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma

2012-04-26T22:33:36+00:00

Pull [GIT PULL] slave-dmaengine fixes from Vinod Koul.

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine/amba-pl08x : reset phychan_hold on terminate all
  dma: pl330: fix a couple of compilation warnings
  dma/ste_dma40: fix erroneous comparison
  dma/ste_dma40: explicitly include regulator consumer header
  dma40: Improve the logic of stopping logical chan
  dmaengine: at_hdmac: remove clear-on-read in atc_dostart()
  dma: mxs-dma: enable channel in device_issue_pending call
  dmaengine: imx-dma: dont complete descriptor for cyclic dma

mmc: core: Do not pre-claim host in suspend

2012-04-21T01:52:13+00:00

Since SDIO drivers may want to do some SDIO operations in their suspend
callback functions, we must not keep the host claimed when calling them.

Daniel Drake reported that libertas_sdio encountered a deadlock in its
suspend function.

Signed-off-by: Ulf Hansson 
Tested-by: Daniel Drake 
[stable@: please apply to 3.2-stable and 3.3-stable]
Cc: stable 
Signed-off-by: Chris Ball

mmc: dw_mmc: prevent NULL dereference for dma_ops

2012-04-21T01:52:05+00:00

Now, dma_ops is assumed that use the IDMAC.  But if dma_ops is assigned
the pdata->dma_ops, we didn't ensure that callback function is defined.

If the callback isn't defined, then we should run in PIO mode.

Signed-off-by: Jaehoon Chung 
Signed-off-by: Kyungmin Park 
Acked-by: Will Newton 
Signed-off-by: Chris Ball

mmc: unbreak sdhci-esdhc-imx on i.MX25

2012-04-21T00:45:00+00:00

This was broken by me in 37865fe91582582a6f6c00652f6a2b1ff71f8a78
("mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhci") where more
extensive tests would have shown that read or write of data to the
card were failing (even if the partition table was correctly read).

Signed-off-by: Eric Bénard 
Acked-by: Wolfram Sang 
Cc: stable 
Signed-off-by: Chris Ball

mmc: cd-gpio: Include header to pickup exported symbol prototypes

2012-04-21T00:45:00+00:00

Include the linux/mmc/cd-gpio.h header to pickup the prototypes
for the two exported symbols.

This quiets the sparse warnings:

warning: symbol 'mmc_cd_gpio_request' was not declared. Should it be static?
warning: symbol 'mmc_cd_gpio_free' was not declared. Should it be static?

Signed-off-by: H Hartley Sweeten 
Acked-by: Guennadi Liakhovetski 
Acked-by: Venkatraman S 
Signed-off-by: Chris Ball