APPLIED: ARM: tegra: fix Dalmore pinctrl configuration

Remove some entries from Dalmore's device tree that attempt to set some
options which aren't supported for the drive_gma pin group.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
LINUX-NEXT FIX: arm: pj4: check cpu id for pj4 cp0 access

Check cpu id in pj4_cp0_init. So for no-PJ4 V7 cpus,
pj4_cpu0_init just return.
This fix will help to make the all the V7 cpus(pj4 and no-PJ4)
use same platform code.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
ARM: tegra: fix board DT pinmux setup

Neither Tegra114 nor Tegra124 allow "low power mode" to be configured
on SDIO1 or SDIO3 drive groups. Remove the attempt to configure that
option from the Dalmore and Venice2 DTs.

The Venice2 DT contained duplicate configurations for most sdmmc1_*
pins. Remove the duplicate pins from one of the nodes, and fix the
configuration since the remaining clk pin is output-only.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
pinctrl: tegra: remove redundant data table fields

Any SoC which supports the einput, odrain, lock, ioreset, or rcv_sel
options has the relevant HW register fields in the same register as the
mux function selection. Similarly, the drvtype option is always in the
drive register, if it is supported at all. Hence, we don't need to have
struct *_reg fields in the pin group table to define which register and
bank to use for those options. Delete this to save space in the driver's
data tables.

However, many of those options are not supported on all SoCs, or not
supported on some pingroups. We need a way to detect when they are
supported. Previously, this was indicated by setting the struct *_reg
field to -1. With the struct *_reg fields removed, we use the struct
*_bit fields for this purpose instead. The struct *_bit fields need to
be expanded from 5 to 6 bits in order to store a value outside the valid
HW bit range of 0..31.

Even without removing the struct *_reg fields, we still need to add code
to validate the struct *_bit fields, since some struct *_bit fields were
already being set to -1, without an option-specific struct *_reg field to
"guard" them. In other words, before this change, the pinmux driver might
allow some unsupported options to be written to HW.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
pinctrl: tegra: remove fsafe from data tables

The fsafe value in the pingroup data tables is only used to implement
tegra_pinctrl_disable(). The only reason this function is called is when
dynamically switching between pinmux states, i.e. when disabling the old
state before programming the new state. It's simpler to have the new
target state define the expected value of each pin (and all current DTs
do that). This also gives more flexibility, since it allows individual
boards explicit control over the "inactive" mux function for each pin,
rather than requiring it to be an SoC-specific value. Assuming this, we
can get rid of the fsafe value from the driver completely, thus saving
some more space in the driver tables.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
pinctrl: tegra: reduce size of data table fields

The range of npins and function ID values is small enough to fit into a
u8. Use this type rather than unsigned to shrink the pinmux data tables.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
pinctrl: tegra: print better error messages

When an attempt is made to configure an unsupported option on a pin,
print the DT property name of that option, so it's easier to debug
what the problem is.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
ARM: tegra: rebuild tegra_defconfig on next-20140319

Signed-off-by: Stephen Warren <swarren@nvidia.com>
LOCAL HACK: tegra_defconfig changes

Signed-off-by: Stephen Warren <swarren@nvidia.com>
ARM: tegra: bluetooth testing hacks for Cardhu

Signed-off-by: Stephen Warren <swarren@nvidia.com>
HACK venice2 not to use an audio CODEC
HACK venice2 to work on tegrasim again
Revert "HACK venice2 to work on tegrasim again"

This reverts commit ca881fab84612917149afb3ace3601f7ceeaa8ef.
Revert "HACK venice2 not to use an audio CODEC"

This reverts commit dcb81b8af8fe21353d92915e0621acde703ca7b7.