Commit add958ce authored by Soren Brinkmann's avatar Soren Brinkmann Committed by Linus Walleij

pinctrl: Add driver for Zynq

This adds a pin-control driver for Zynq.

Changes since v2:
- driver-specific DT properties are passed to the core in two arrays,
  one for the actual DT parsing one for the debugfs representation.
  Issue a compiler warning when the number of entries is not the same
  for both arrays.

Changes since v1:
 - fix EMIO_SD1_CD pin name
 - add USB to pinmux options

changes since RFCv2:
 - let Zynq select PINCTRL_ZYNQ. Boot hangs when pinctrl information is
   present in DT but no driver available.
 - add #defines to get rid of magical constants
 - add commas at end of initializers
 - separate changes in mach-zynq in separate patch
 - add driver specific io-standard DT property
 - refactored pinconf set function to not require arguments for
   argument-less properties
 - squash other patches in
   - support for IO-standard property
   - support for low-power mode property
   - migration to pinconf_generic_dt_node_to_map_all()
 - use newly created infrastructure to add pass driver-specific DT
   params to pinconf-generic

changes since RFC:
 - use syscon/regmap to access registers in SLCR space
 - rebase to 3.18: rename enable -> set_mux
 - add kernel-doc
 - support pinconf
   - supported attributes
     - pin-bias: pull up, tristate, disable
     - slew-rate: 0 == slow, 1 == fast; generic pinconf does not display
       argument
Signed-off-by: default avatarSoren Brinkmann <soren.brinkmann@xilinx.com>
Tested-by: Andreas Färber's avatarAndreas Färber <afaerber@suse.de>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent da085a86
......@@ -191,6 +191,14 @@ config PINCTRL_PALMAS
open drain configuration for the Palmas series devices like
TPS65913, TPS80036 etc.
config PINCTRL_ZYNQ
bool "Pinctrl driver for Xilinx Zynq"
depends on ARCH_ZYNQ
select PINMUX
select GENERIC_PINCONF
help
This selectes the pinctrl driver for Xilinx Zynq.
source "drivers/pinctrl/berlin/Kconfig"
source "drivers/pinctrl/freescale/Kconfig"
source "drivers/pinctrl/intel/Kconfig"
......
......@@ -35,6 +35,7 @@ obj-$(CONFIG_PINCTRL_XWAY) += pinctrl-xway.o
obj-$(CONFIG_PINCTRL_LANTIQ) += pinctrl-lantiq.o
obj-$(CONFIG_PINCTRL_TB10X) += pinctrl-tb10x.o
obj-$(CONFIG_PINCTRL_ST) += pinctrl-st.o
obj-$(CONFIG_PINCTRL_ZYNQ) += pinctrl-zynq.o
obj-$(CONFIG_ARCH_BERLIN) += berlin/
obj-y += freescale/
......
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