Update the driver to parse the new unified bus-width property introduced
in commit 7f217794 "mmc: dt: Consolidate DT bindings", instead of the legacy
support-8bit property.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NChris Ball <cjb@laptop.org>

Tegra3 SDHOST controller doesn't advertise v3.00 support by default.
This support has to be enabled by configuring a vendor register in
the tegra3 sd host address space.
Signed-off-by: NPavan Kunapuli <pkunapuli@nvidia.com>
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
Signed-off-by: NChris Ball <cjb@laptop.org>

Recent pinctrl discussions concluded that gpiolib APIs should in fact do
whatever is required to mux a GPIO onto pins, by calling pinctrl APIs if
required. This change implements this for the Tegra GPIO driver, and removes
calls to the Tegra-specific APIs from drivers and board files.

Cc: Chris Ball <cjb@laptop.org>
Cc: linux-mmc@vger.kernel.org
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: Chris Ball <cjb@laptop.org> # for sdhci-tegra.c
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NOlof Johansson <olof@lixom.net>

Tegra30 differs from Tegra20 in a number of ways. This patch implements a
minimal set of differences in order to get the Cardhu board's SD slot and
eMMC working. Given the diffs between the mainline sdhci-tegra.c and our
downstream versions, I expect we'll eventually need to add many more
differences, hence the seemingly heavy-weight addition of the soc_data
structure.

* Tegra30 doesn't need to override register access to SDHCI_HOST_VERSION or
  SDHCI_INT_ENABLE.

* Tegra30 needs quirk SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

Different tree maintainers picked up independently generated
trivial compile fixes based on linux-next testing, resulting
in some cases where a file would have got more than one addition
of module.h once everything was all merged together.

Delete any duplicates so includecheck isn't complaining about
anything related to module.h/export.h changes.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>

This patch converts the drivers in drivers/mmc/host/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Acked-by: N"Michał Mirosław" <mirq-linux@rere.qmqm.pl>
Acked-by: NDavid Brown <davidb@codeaurora.org>
Acked-by: NViresh Kumar <viresh.kumar@st.com>
Acked-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NAnton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

Drop the "state" argument from sdhci_suspend_host.  Its only user is the
PCI glue;  this allows to move all SDHCI glues to use dev_pm_ops instead.
Signed-off-by: NManuel Lauss <manuel.lauss@googlemail.com>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

We are cleaning up the implicit presence of module.h; these guys are
some of the people who just assume it will be there.  Call it out
explitly for those that really need it.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>

We are cleaning up the implicit presence of module.h; these guys are
some of the people who just assume it will be there.  Call it out
explitly for those that really need it.
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

The previous patch which implemented a DT binding for sdhci-tegra did not
allow all platform data fields to be initialized from DT. The following
were missing:

is_8bit: Implemented by this patch.

pm_flags: Not implemented yet. There are no mainline users of this field.
  I'm not quite sure what it's for, and hence how to represent this
  in DT; the value ends up being assigned to host->mmc->pm_caps.

While we're at it, fix the binding documentation to refer to "SD/MMC"
instead of "eSDHC", since that's the correct name; "eSDHC" was cut/paste
from the Freescale binding docs.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

Add hooks to read gpio configuration out of the device tree node.

[grant.likely: Rewrite of original patch from John Bonesio]
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
[swarren: Fixed tegra_sdhci_get_ro() to retrieve pdata correctly]
[swarren: Reworked to avoid #ifdef CONFIG_OF]
[swarren: Reworked binding based on fsl-imx-esdhc.txt]
[swarren: Documented binding]
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

This will eventually allow <mach/gpio.h> to be deleted. This mirrors
LinusW's recent equivalent work on various other ARM platforms.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

There are a couple of problems left from the sdhci pltfm and OF
consolidation changes.

* When building more than one sdhci-pltfm based drivers in the same
  image, linker will give multiple definition error on the sdhci-pltfm
  helper functions.  For example right now, building sdhci-of-esdhc
  and sdhci-of-hlwd together is a valid combination from Kconfig view.

* With the current build method, there is error with building the
  drivers as module, but module installation fails with modprobe.

The patch fixes above problems by changing sdhci-pltfm into a module.
To avoid EXPORT_SYMBOL on so many big endian IO accessors, it moves
these accessors into sdhci-pltfm.h as the 'static inline' functions.
As a result, sdhci.h needs to be included in sdhci-pltfm.h, and in
turn can be removed from individual drivers which already include
sdhci-pltfm.h.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Signed-off-by: NChris Ball <cjb@laptop.org>

The patch turns the common stuff in sdhci-pltfm.c into functions, and
add device drivers their own .probe and .remove which in turn call
into the common functions, so that those sdhci-pltfm device drivers
register itself and keep all device specific things away from common
sdhci-pltfm file.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Reviewed-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NAnton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: NChris Ball <cjb@laptop.org>

Enable fast bcm4329 WIFI suspend/resume on Tegra2 board.

This patch allows the mach-tegra support to tell the tegra MMC host
controller to NOT turn off power for the MMC controller the WIFI part
lives behind.  Thus bcm4329 firmware doesn't need to be reloaded.
Signed-off-by: NVenkat Rao <vrao@broadcom.com>
Tested-by: NGrant Grundler <grundler@chromium.org>
Reviewed-by: NOlof Johansson <olof@lixom.net>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NChris Ball <cjb@laptop.org>

Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NChris Ball <cjb@laptop.org>

SDHCI driver for Tegra. This driver plugs in as a new variant of
sdhci-pltfm, using the platform data structure passed in to specify the
GPIOs to use for card detect, write protect and card power enablement.

Original driver (of which only the header file is left):
Signed-off-by: NYvonne Yip <y@palm.com>

The rest, which has been rewritten by now:
Signed-off-by: NOlof Johansson <olof@lixom.net>
Reviewed-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NMike Rapoport <mike@compulab.co.il>
Signed-off-by: NChris Ball <cjb@laptop.org>