pinctrl: qcom: sdm845: Provide ACPI support

This patch provides basic support for booting with ACPI instead
of the currently supported Device Tree.  When doing so there are a
couple of differences which we need to taken into consideration.

Firstly, the SDM850 ACPI tables omit information pertaining to the
4 reserved GPIOs on the platform.  If Linux attempts to touch/
initialise any of these lines, the firmware will restart the
platform.

Secondly, when booting with ACPI, it is expected that the firmware
will set-up things like; Regulators, Clocks, Pin Functions, etc in
their ideal configuration.  Thus, the possible Pin Functions
available to this platform are not advertised when providing the
higher GPIOD/Pinctrl APIs with pin information.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
index 2e66ab72c10b..aafbe932424f 100644
--- a/drivers/pinctrl/qcom/Kconfig
+++ b/drivers/pinctrl/qcom/Kconfig
@@ -168,7 +168,7 @@ config PINCTRL_SDM660
 
 config PINCTRL_SDM845
        tristate "Qualcomm Technologies Inc SDM845 pin controller driver"
-       depends on GPIOLIB && OF
+       depends on GPIOLIB && (OF || ACPI)
        select PINCTRL_MSM
        help
          This is the pinctrl, pinmux, pinconf and gpiolib driver for the