Tegra only supports, and always enables, device tree. Remove all ifdefs
for DT support from the driver.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>

CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.
Signed-off-by: NBill Pemberton <wfp5p@virginia.edu>
Acked-by: NThierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.
Signed-off-by: NBill Pemberton <wfp5p@virginia.edu>
Acked-by: NThierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The implementation in devm_request_and_ioremap() already shows error message,
so no need to show dev_err again if devm_request_and_ioremap() fails.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Philip, Avinash <avinashphilip@ti.com>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>

Also return proper error in tegra_pwm_remove() if pwmchip_remove()
fails.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>

Add auxdata to instantiate the PWFM controller from a device tree,
include the corresponding nodes in the dtsi files for Tegra 20 and
Tegra 30 and add binding documentation.
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>

This commit adds a generic PWM framework driver for the PWFM controller
found on NVIDIA Tegra SoCs. The driver is based on code from the
Chromium kernel tree and was originally written by Gary King (NVIDIA)
and later modified by Simon Que (Chromium).
Acked-by: NStephen Warren <swarren@wwwdotorg.org>
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>