This patch changes the tmio_mmc driver to wait 100ms
before checking the card detect status. This type of
delay is quite common among mmc drivers, it seems that
most hardware platforms need to give the hardware some
time to settle before checking card availabilty.

Hotplug is half-broken without this patch on the sh7724
Ecovec board. Hot insertion seems ok but eject is never
detected without this patch.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Enable MMC_CAP_XX support in the tmio_mmc driver if
pdata->capabilities is set.
Signed-off-by: NYusuke Goda <goda.yusuke@renesas.com>
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

This patch abstracts out the CNF area code from tmio_mmc which
is not present in all hardware that can use this driver. This
is required so that we can support non-toshiba based hardware.

ASIC3 support by Philipp Zabel
Signed-off-by: NIan Molton <ian@mnementh.co.uk>
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>

Improve the /proc/interrupts output so the irq number can be mapped to
platform device on boards with multiple tmio_mmc instances.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Cc: <linux-mmc@vger.kernel.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Now tmio_mmc is able to drive the MMC/SD cell in ASIC3.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Acked-by: NIan Molton <spyro@f2s.com>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

This patch fixes the clock setup in tmio_mmc.

  * Incorrect divider setting
  * Cruft written to the clock registers (seemingly harmless but Not
Good (tm))

It also eliminates some unnecessary ifs and tidies the loop syntax.

Thanks to Philipp Zabel who discovered the divider issue, commenting

   "Except for the SDCLK = HCLK (divider bypassed) case, the clock
    setting resulted in double the requested frequency.
    The smallest possible frequency (f_max/512) is configured with
    a divider setting 0x80, not 0x40."
Signed-off-by: NIan Molton <ian@mnementh.co.uk>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

ASIC3 can disable the memory, so we need to wait for mfd_cell->enable
to enable the memory before we can map the SD control registers.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Acked-by: NIan Molton <ian@mnementh.co.uk>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Acked-by: NIan Molton <ian@mnementh.co.uk>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

Use an IRQF_TRIGGER_ flag in request_irq instead.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Acked-by: NIan Molton <ian@mnementh.co.uk>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

Some ASIC3 devices in the wild are connected with the address bus shifted
by one line, so that its 16-bit registers appear 32-bit aligned in host
memory space.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Acked-by: NIan Molton <ian@mnementh.co.uk>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

The Toshiba parts all have a 24 MHz HCLK, but HTC ASIC3 has a 24.576 MHz HCLK
and AMD Imageon w228x's HCLK is 80 MHz. With this patch, the MFD driver
provides the HCLK frequency to tmio_mmc via mfd_cell->driver_data.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Acked-by: NIan Molton <ian@mnementh.co.uk>
Acked-by: NSamuel Ortiz <sameo@openedhand.com>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

Update the tmio_mmc code to call mmc_free_host() when
done using the private data. Without this fix the driver
frees memory and then keeps on using it as private data.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Acked-by: NIan Molton <ian@mnementh.co.uk>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>

Update the tmio_mmc code to use resource_size(). With this
patch applied the correct resource size is passed to ioremap().
Signed-off-by: NMagnus Damm <damm@opensource.se>
Acked-by: NIan Molton <ian@mnementh.co.uk>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>

In each case, if the NULL test is necessary, then the dereference should be
moved below the NULL test.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// </smpl>
Signed-off-by: NJulia Lawall <julia@diku.dk>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>

This patch adds support for the MMC subdevice 'cell' commonly found in
TMIO based MFDs.
Signed-off-by: NIan Molton <spyro@f2s.com>
Acked-by: NPierre Ossman <drzeus@drzeus.cx>
Signed-off-by: NSamuel Ortiz <sameo@openedhand.com>