Adding pinctrl driver for Xilinx ZynqMP platform.
This driver queries pin information from firmware and registers
pin control accordingly.

Signed-off-by: Sai Krishna Potthuri <redacted>
---
 drivers/pinctrl/Kconfig          |   13 +
 drivers/pinctrl/Makefile         |    1 +
 drivers/pinctrl/pinctrl-zynqmp.c | 1031 ++++++++++++++++++++++++++++++
 3 files changed, 1045 insertions(+)
 create mode 100644 drivers/pinctrl/pinctrl-zynqmp.c

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 815095326e2d..25d3c7208975 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig

@@ -341,6 +341,19 @@ config PINCTRL_ZYNQ
        help
          This selects the pinctrl driver for Xilinx Zynq.

+config PINCTRL_ZYNQMP
+       bool "Pinctrl driver for Xilinx ZynqMP"
+       depends on ARCH_ZYNQMP
+       select PINMUX
+       select GENERIC_PINCONF
+       help
+         This selects the pinctrl driver for Xilinx ZynqMP platform.
+         This driver will query the pin information from the firmware
+         and allow configuring the pins.
+         Configuration can include the mux function to select on those
+         pin(s)/group(s), and various pin configuration parameters
+         such as pull-up, slew rate, etc.
+
 config PINCTRL_INGENIC
        bool "Pinctrl driver for the Ingenic JZ47xx SoCs"
        default MACH_INGENIC

diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index f53933b2ff02..7e058739f0d5 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile

@@ -43,6 +43,7 @@ obj-$(CONFIG_PINCTRL_TB10X)   += pinctrl-tb10x.o
 obj-$(CONFIG_PINCTRL_ST)       += pinctrl-st.o
 obj-$(CONFIG_PINCTRL_STMFX)    += pinctrl-stmfx.o
 obj-$(CONFIG_PINCTRL_ZYNQ)     += pinctrl-zynq.o
+obj-$(CONFIG_PINCTRL_ZYNQMP)    += pinctrl-zynqmp.o
 obj-$(CONFIG_PINCTRL_INGENIC)  += pinctrl-ingenic.o
 obj-$(CONFIG_PINCTRL_RK805)    += pinctrl-rk805.o
 obj-$(CONFIG_PINCTRL_OCELOT)   += pinctrl-ocelot.o

diff --git a/drivers/pinctrl/pinctrl-zynqmp.c b/drivers/pinctrl/pinctrl-zynqmp.c
new file mode 100644
index 000000000000..ec0a5d0e22d5
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-zynqmp.c

@@ -0,0 +1,1031 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ZynqMP pin controller
+ *
+ *  Copyright (C) 2020 Xilinx, Inc.
+ *
+ *  Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
+ *  Rajan Vaja <rajanv@xilinx.com>
+ */