Pull GPIO fixes from Linus Walleij:
 "Here is a bunch of GPIO fixes that I collected since -rc1, nothing
  controversial, nothing special:

   - fix a memory leak for GPIO hotplug.

   - fix a signedness bug in the ACPI GPIO pin validation.

   - driver fixes: Qualcomm SPMI and OMAP MPUIO IRQ issues"

* tag 'gpio-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: omap: Fix regression for MPUIO interrupts
  gpio: sysfs: fix memory leaks and device hotplug
  pinctrl: qcom-spmi-gpio: Fix input value report
  pinctrl: qcom-spmi-gpio: Fix output type configuration
  gpiolib: change gpio pin from unsigned to signed in acpi callback

Fix interpretation of the pmic_mpp_read() return code,
negative value means an error.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Read input buffer when input is enabled, not when it is
disabled. Also fix interpretation of the pmic_gpio_read()
return code, negative value means an error.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

GPIO output type configuration was incorrectly overwritten
by strength value. Fix this.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Pin direction configuration was incorrectly overwritten
by output and function values in set_mux(). Fix this.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Add compatible string definitions and supported pin functions.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

This enables support of 'input-enable' pinconf generic property in
the pinctrl driver.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

This makes the pinctrl driver to use the generic pinconf
interface. Mainly it gives us a way to use debugfs to dump
group configurations.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

The .pin_config_get/set operation are not supported in qcom pinctrl
driver. As the pinconf core is smart enough it doesn't complain
about that.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Add initial pinctrl driver to support pin configuration with
pinctrl framework for msm8916.

Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>