Merge tag 'tty-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the big set of TTY / Serial patches for 5.7-rc1

  Lots of console fixups and reworking in here, serial core tweaks
  (doesn't that ever get old, why are we still creating new serial
  devices?), serial driver updates, line-protocol driver updates, and
  some vt cleanups and fixes included in here as well.

  All have been in linux-next with no reported issues"

* tag 'tty-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (161 commits)
  serial: 8250: Optimize irq enable after console write
  serial: 8250: Fix rs485 delay after console write
  vt: vt_ioctl: fix use-after-free in vt_in_use()
  vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
  tty: serial: make SERIAL_SPRD depend on COMMON_CLK
  tty: serial: fsl_lpuart: fix return value checking
  tty: serial: fsl_lpuart: move dma_request_chan()
  ARM: dts: tango4: Make /serial compatible with ns16550a
  ARM: dts: mmp*: Make the serial ports compatible with xscale-uart
  ARM: dts: mmp*: Fix serial port names
  ARM: dts: mmp2-brownstone: Don't redeclare phandle references
  ARM: dts: pxa*: Make the serial ports compatible with xscale-uart
  ARM: dts: pxa*: Fix serial port names
  ARM: dts: pxa*: Don't redeclare phandle references
  serial: omap: drop unused dt-bindings header
  serial: 8250: 8250_omap: Add DMA support for UARTs on K3 SoCs
  serial: 8250: 8250_omap: Work around errata causing spurious IRQs with DMA
  serial: 8250: 8250_omap: Extend driver data to pass FIFO trigger info
  serial: 8250: 8250_omap: Move locking out from __dma_rx_do_complete()
  serial: 8250: 8250_omap: Account for data in flight during DMA teardown
  ...

10 files changed, 427 insertions, 354 deletions

diff --git a/arch/arm/boot/dts/mmp2-brownstone.dts b/arch/arm/boot/dts/mmp2-brownstone.dts
index aaedc4c742ea..04f1ae1382e7 100644
--- a/arch/arm/boot/dts/mmp2-brownstone.dts
+++ b/arch/arm/boot/dts/mmp2-brownstone.dts
@@ -19,176 +19,174 @@
 		device_type = "memory";
 		reg = <0x00000000 0x08000000>;
 	};
+};
+
+&uart3 {
+	status = "okay";
+};
 
-	soc {
-		apb@d4000000 {
-			uart3: uart@d4018000 {
-				status = "okay";
-			};
-			twsi1: i2c@d4011000 {
-				status = "okay";
-				pmic: max8925@3c {
-					compatible = "maxium,max8925";
-					reg = <0x3c>;
-					interrupts = <1>;
-					interrupt-parent = <&intcmux4>;
-					interrupt-controller;
-					#interrupt-cells = <1>;
-					maxim,tsc-irq = <0>;
+&twsi1 {
+	status = "okay";
+	pmic: max8925@3c {
+		compatible = "maxium,max8925";
+		reg = <0x3c>;
+		interrupts = <1>;
+		interrupt-parent = <&intcmux4>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		maxim,tsc-irq = <0>;
 
-					regulators {
-						SDV1 {
-							regulator-min-microvolt = <637500>;
-							regulator-max-microvolt = <1425000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						SDV2 {
-							regulator-min-microvolt = <650000>;
-							regulator-max-microvolt = <2225000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						SDV3 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO1 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO2 {
-							regulator-min-microvolt = <650000>;
-							regulator-max-microvolt = <2250000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO3 {
-							regulator-min-microvolt = <650000>;
-							regulator-max-microvolt = <2250000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO4 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO5 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO6 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO7 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO8 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO9 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO10 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-						};
-						LDO11 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO12 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO13 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO14 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO15 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO16 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO17 {
-							regulator-min-microvolt = <650000>;
-							regulator-max-microvolt = <2250000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO18 {
-							regulator-min-microvolt = <650000>;
-							regulator-max-microvolt = <2250000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO19 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO20 {
-							regulator-min-microvolt = <750000>;
-							regulator-max-microvolt = <3900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-					};
-					backlight {
-						maxim,max8925-dual-string = <0>;
-					};
-					charger {
-						batt-detect = <0>;
-						topoff-threshold = <1>;
-						fast-charge = <7>;
-						no-temp-support = <0>;
-						no-insert-detect = <0>;
-					};
-				};
-			};
-			rtc: rtc@d4010000 {
-				status = "okay";
+		regulators {
+			SDV1 {
+				regulator-min-microvolt = <637500>;
+				regulator-max-microvolt = <1425000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			SDV2 {
+				regulator-min-microvolt = <650000>;
+				regulator-max-microvolt = <2225000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			SDV3 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO1 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO2 {
+				regulator-min-microvolt = <650000>;
+				regulator-max-microvolt = <2250000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO3 {
+				regulator-min-microvolt = <650000>;
+				regulator-max-microvolt = <2250000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO4 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO5 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO6 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO7 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO8 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO9 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO10 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
 			};
+			LDO11 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO12 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO13 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO14 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO15 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO16 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO17 {
+				regulator-min-microvolt = <650000>;
+				regulator-max-microvolt = <2250000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO18 {
+				regulator-min-microvolt = <650000>;
+				regulator-max-microvolt = <2250000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO19 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO20 {
+				regulator-min-microvolt = <750000>;
+				regulator-max-microvolt = <3900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+		backlight {
+			maxim,max8925-dual-string = <0>;
+		};
+		charger {
+			batt-detect = <0>;
+			topoff-threshold = <1>;
+			fast-charge = <7>;
+			no-temp-support = <0>;
+			no-insert-detect = <0>;
 		};
 	};
 };
+
+&rtc {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/mmp2.dtsi b/arch/arm/boot/dts/mmp2.dtsi
index 6a2f072c1d0a..da10567b5aca 100644
--- a/arch/arm/boot/dts/mmp2.dtsi
+++ b/arch/arm/boot/dts/mmp2.dtsi
@@ -208,8 +208,8 @@
 				clocks = <&soc_clocks MMP2_CLK_TIMER>;
 			};
 
-			uart1: uart@d4030000 {
-				compatible = "mrvl,mmp-uart";
+			uart1: serial@d4030000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4030000 0x1000>;
 				interrupts = <27>;
 				clocks = <&soc_clocks MMP2_CLK_UART0>;
@@ -218,8 +218,8 @@
 				status = "disabled";
 			};
 
-			uart2: uart@d4017000 {
-				compatible = "mrvl,mmp-uart";
+			uart2: serial@d4017000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4017000 0x1000>;
 				interrupts = <28>;
 				clocks = <&soc_clocks MMP2_CLK_UART1>;
@@ -228,8 +228,8 @@
 				status = "disabled";
 			};
 
-			uart3: uart@d4018000 {
-				compatible = "mrvl,mmp-uart";
+			uart3: serial@d4018000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4018000 0x1000>;
 				interrupts = <24>;
 				clocks = <&soc_clocks MMP2_CLK_UART2>;
@@ -238,8 +238,8 @@
 				status = "disabled";
 			};
 
-			uart4: uart@d4016000 {
-				compatible = "mrvl,mmp-uart";
+			uart4: serial@d4016000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4016000 0x1000>;
 				interrupts = <46>;
 				clocks = <&soc_clocks MMP2_CLK_UART3>;
diff --git a/arch/arm/boot/dts/mmp3.dtsi b/arch/arm/boot/dts/mmp3.dtsi
index 59a108e49b41..9b5087a95e73 100644
--- a/arch/arm/boot/dts/mmp3.dtsi
+++ b/arch/arm/boot/dts/mmp3.dtsi
@@ -318,8 +318,8 @@
 				clocks = <&soc_clocks MMP2_CLK_TIMER>;
 			};
 
-			uart1: uart@d4030000 {
-				compatible = "mrvl,mmp-uart";
+			uart1: serial@d4030000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4030000 0x1000>;
 				interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&soc_clocks MMP2_CLK_UART0>;
@@ -328,8 +328,8 @@
 				status = "disabled";
 			};
 
-			uart2: uart@d4017000 {
-				compatible = "mrvl,mmp-uart";
+			uart2: serial@d4017000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4017000 0x1000>;
 				interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&soc_clocks MMP2_CLK_UART1>;
@@ -338,8 +338,8 @@
 				status = "disabled";
 			};
 
-			uart3: uart@d4018000 {
-				compatible = "mrvl,mmp-uart";
+			uart3: serial@d4018000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4018000 0x1000>;
 				interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&soc_clocks MMP2_CLK_UART2>;
@@ -348,8 +348,8 @@
 				status = "disabled";
 			};
 
-			uart4: uart@d4016000 {
-				compatible = "mrvl,mmp-uart";
+			uart4: serial@d4016000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4016000 0x1000>;
 				interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&soc_clocks MMP2_CLK_UART3>;
diff --git a/arch/arm/boot/dts/pxa168-aspenite.dts b/arch/arm/boot/dts/pxa168-aspenite.dts
index 2ad40e373194..8bade6bf395b 100644
--- a/arch/arm/boot/dts/pxa168-aspenite.dts
+++ b/arch/arm/boot/dts/pxa168-aspenite.dts
@@ -18,18 +18,16 @@
 	memory {
 		reg = <0x00000000 0x04000000>;
 	};
+};
 
-	soc {
-		apb@d4000000 {
-			uart1: uart@d4017000 {
-				status = "okay";
-			};
-			twsi1: i2c@d4011000 {
-				status = "okay";
-			};
-			rtc: rtc@d4010000 {
-				status = "okay";
-			};
-		};
-	};
+&uart1 {
+	status = "okay";
+};
+
+&twsi1 {
+	status = "okay";
+};
+
+&rtc {
+	status = "okay";
 };
diff --git a/arch/arm/boot/dts/pxa168.dtsi b/arch/arm/boot/dts/pxa168.dtsi
index 72f8cb60cb53..9a9e38245e88 100644
--- a/arch/arm/boot/dts/pxa168.dtsi
+++ b/arch/arm/boot/dts/pxa168.dtsi
@@ -55,27 +55,30 @@
 				interrupts = <13>;
 			};
 
-			uart1: uart@d4017000 {
-				compatible = "mrvl,mmp-uart";
+			uart1: serial@d4017000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4017000 0x1000>;
+				reg-shift = <2>;
 				interrupts = <27>;
 				clocks = <&soc_clocks PXA168_CLK_UART0>;
 				resets = <&soc_clocks PXA168_CLK_UART0>;
 				status = "disabled";
 			};
 
-			uart2: uart@d4018000 {
-				compatible = "mrvl,mmp-uart";
+			uart2: serial@d4018000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4018000 0x1000>;
+				reg-shift = <2>;
 				interrupts = <28>;
 				clocks = <&soc_clocks PXA168_CLK_UART1>;
 				resets = <&soc_clocks PXA168_CLK_UART1>;
 				status = "disabled";
 			};
 
-			uart3: uart@d4026000 {
-				compatible = "mrvl,mmp-uart";
+			uart3: serial@d4026000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4026000 0x1000>;
+				reg-shift = <2>;
 				interrupts = <29>;
 				clocks = <&soc_clocks PXA168_CLK_UART2>;
 				resets = <&soc_clocks PXA168_CLK_UART2>;
diff --git a/arch/arm/boot/dts/pxa910-dkb.dts b/arch/arm/boot/dts/pxa910-dkb.dts
index 0f899e672e82..ce76158867c7 100644
--- a/arch/arm/boot/dts/pxa910-dkb.dts
+++ b/arch/arm/boot/dts/pxa910-dkb.dts
@@ -18,155 +18,153 @@
 	memory {
 		reg = <0x00000000 0x10000000>;
 	};
+};
 
-	soc {
-		apb@d4000000 {
-			uart1: uart@d4017000 {
-				status = "okay";
-			};
-			twsi1: i2c@d4011000 {
-				status = "okay";
+&uart1 {
+	status = "okay";
+};
+
+&twsi1 {
+	status = "okay";
 
-				pmic: 88pm860x@34 {
-					compatible = "marvell,88pm860x";
-					reg = <0x34>;
-					interrupts = <4>;
-					interrupt-parent = <&intc>;
-					interrupt-controller;
-					#interrupt-cells = <1>;
+	pmic: 88pm860x@34 {
+		compatible = "marvell,88pm860x";
+		reg = <0x34>;
+		interrupts = <4>;
+		interrupt-parent = <&intc>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
 
-					marvell,88pm860x-irq-read-clr;
-					marvell,88pm860x-slave-addr = <0x11>;
+		marvell,88pm860x-irq-read-clr;
+		marvell,88pm860x-slave-addr = <0x11>;
 
-					regulators {
-						BUCK1 {
-							regulator-min-microvolt = <1000000>;
-							regulator-max-microvolt = <1500000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						BUCK2 {
-							regulator-min-microvolt = <1000000>;
-							regulator-max-microvolt = <1500000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						BUCK3 {
-							regulator-min-microvolt = <1000000>;
-							regulator-max-microvolt = <3000000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO1 {
-							regulator-min-microvolt = <1200000>;
-							regulator-max-microvolt = <2800000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO2 {
-							regulator-min-microvolt = <1800000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO3 {
-							regulator-min-microvolt = <1800000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO4 {
-							regulator-min-microvolt = <1800000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-always-on;
-						};
-						LDO5 {
-							regulator-min-microvolt = <2900000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO6 {
-							regulator-min-microvolt = <1800000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO7 {
-							regulator-min-microvolt = <1800000>;
-							regulator-max-microvolt = <2900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO8 {
-							regulator-min-microvolt = <1800000>;
-							regulator-max-microvolt = <2900000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO9 {
-							regulator-min-microvolt = <1800000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO10 {
-							regulator-min-microvolt = <1200000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-boot-on;
-							regulator-always-on;
-						};
-						LDO12 {
-							regulator-min-microvolt = <1200000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-always-on;
-						};
-						LDO13 {
-							regulator-min-microvolt = <1200000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-always-on;
-						};
-						LDO14 {
-							regulator-min-microvolt = <1800000>;
-							regulator-max-microvolt = <3300000>;
-							regulator-always-on;
-						};
-					};
-					rtc {
-						marvell,88pm860x-vrtc = <1>;
-					};
-					touch {
-						marvell,88pm860x-gpadc-prebias = <1>;
-						marvell,88pm860x-gpadc-slot-cycle = <1>;
-						marvell,88pm860x-tsi-prebias = <6>;
-						marvell,88pm860x-pen-prebias = <16>;
-						marvell,88pm860x-pen-prechg = <2>;
-						marvell,88pm860x-resistor-X = <300>;
-					};
-					backlights {
-						backlight-0 {
-							marvell,88pm860x-iset = <4>;
-							marvell,88pm860x-pwm = <3>;
-						};
-						backlight-2 {
-						};
-					};
-					leds {
-						led0-red {
-							marvell,88pm860x-iset = <12>;
-						};
-						led0-green {
-							marvell,88pm860x-iset = <12>;
-						};
-						led0-blue {
-							marvell,88pm860x-iset = <12>;
-						};
-					};
-				};
-			};
-			rtc: rtc@d4010000 {
-				status = "okay";
+		regulators {
+			BUCK1 {
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			BUCK2 {
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			BUCK3 {
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO1 {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <2800000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO2 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO3 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO4 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			LDO5 {
+				regulator-min-microvolt = <2900000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO6 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO7 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <2900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO8 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <2900000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO9 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO10 {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+			LDO12 {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			LDO13 {
+				regulator-min-microvolt = <1200000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+			LDO14 {
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-always-on;
+			};
+		};
+		rtc {
+			marvell,88pm860x-vrtc = <1>;
+		};
+		touch {
+			marvell,88pm860x-gpadc-prebias = <1>;
+			marvell,88pm860x-gpadc-slot-cycle = <1>;
+			marvell,88pm860x-tsi-prebias = <6>;
+			marvell,88pm860x-pen-prebias = <16>;
+			marvell,88pm860x-pen-prechg = <2>;
+			marvell,88pm860x-resistor-X = <300>;
+		};
+		backlights {
+			backlight-0 {
+				marvell,88pm860x-iset = <4>;
+				marvell,88pm860x-pwm = <3>;
+			};
+			backlight-2 {
+			};
+		};
+		leds {
+			led0-red {
+				marvell,88pm860x-iset = <12>;
+			};
+			led0-green {
+				marvell,88pm860x-iset = <12>;
+			};
+			led0-blue {
+				marvell,88pm860x-iset = <12>;
 			};
 		};
 	};
 };
+
+&rtc {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/pxa910.dtsi b/arch/arm/boot/dts/pxa910.dtsi
index b3d6182d4de4..587a5e7f0702 100644
--- a/arch/arm/boot/dts/pxa910.dtsi
+++ b/arch/arm/boot/dts/pxa910.dtsi
@@ -67,27 +67,30 @@
 				status = "disabled";
 			};
 
-			uart1: uart@d4017000 {
-				compatible = "mrvl,mmp-uart";
+			uart1: serial@d4017000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4017000 0x1000>;
+				reg-shift = <2>;
 				interrupts = <27>;
 				clocks = <&soc_clocks PXA910_CLK_UART0>;
 				resets = <&soc_clocks PXA910_CLK_UART0>;
 				status = "disabled";
 			};
 
-			uart2: uart@d4018000 {
-				compatible = "mrvl,mmp-uart";
+			uart2: serial@d4018000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4018000 0x1000>;
+				reg-shift = <2>;
 				interrupts = <28>;
 				clocks = <&soc_clocks PXA910_CLK_UART1>;
 				resets = <&soc_clocks PXA910_CLK_UART1>;
 				status = "disabled";
 			};
 
-			uart3: uart@d4036000 {
-				compatible = "mrvl,mmp-uart";
+			uart3: serial@d4036000 {
+				compatible = "mrvl,mmp-uart", "intel,xscale-uart";
 				reg = <0xd4036000 0x1000>;
+				reg-shift = <2>;
 				interrupts = <59>;
 				clocks = <&soc_clocks PXA910_CLK_UART2>;
 				resets = <&soc_clocks PXA910_CLK_UART2>;
diff --git a/arch/arm/boot/dts/tango4-common.dtsi b/arch/arm/boot/dts/tango4-common.dtsi
index ff72a8efb73d..54fd522badfc 100644
--- a/arch/arm/boot/dts/tango4-common.dtsi
+++ b/arch/arm/boot/dts/tango4-common.dtsi
@@ -85,7 +85,7 @@
 		};
 
 		uart: serial@10700 {
-			compatible = "ralink,rt2880-uart";
+			compatible = "ralink,rt2880-uart", "ns16550a";
 			reg = <0x10700 0x30>;
 			interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
 			clock-frequency = <7372800>;
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index b2b504ea6fd6..76778b2f520d 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -249,7 +249,7 @@ config ARCH_TEGRA
 	  This enables support for the NVIDIA Tegra SoC family.
 
 config ARCH_SPRD
-	bool "Spreadtrum SoC platform"
+	tristate "Spreadtrum SoC platform"
 	help
 	  Support for Spreadtrum ARM based SoCs
 
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
index 55b71bb4baf8..c28a25b145ae 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
@@ -333,6 +333,79 @@
 			status = "disabled";
 		};
 
+
+		lpuart0: serial@2260000 {
+			compatible = "fsl,ls1028a-lpuart";
+			reg = <0x0 0x2260000 0x0 0x1000>;
+			interrupts = <GIC_SPI 232 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clockgen 4 1>;
+			clock-names = "ipg";
+			dma-names = "rx","tx";
+			dmas = <&edma0 1 32>,
+			       <&edma0 1 33>;
+			status = "disabled";
+		};
+
+		lpuart1: serial@2270000 {
+			compatible = "fsl,ls1028a-lpuart";
+			reg = <0x0 0x2270000 0x0 0x1000>;
+			interrupts = <GIC_SPI 233 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clockgen 4 1>;
+			clock-names = "ipg";
+			dma-names = "rx","tx";
+			dmas = <&edma0 1 30>,
+			       <&edma0 1 31>;
+			status = "disabled";
+		};
+
+		lpuart2: serial@2280000 {
+			compatible = "fsl,ls1028a-lpuart";
+			reg = <0x0 0x2280000 0x0 0x1000>;
+			interrupts = <GIC_SPI 234 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clockgen 4 1>;
+			clock-names = "ipg";
+			dma-names = "rx","tx";
+			dmas = <&edma0 1 28>,
+			       <&edma0 1 29>;
+			status = "disabled";
+		};
+
+		lpuart3: serial@2290000 {
+			compatible = "fsl,ls1028a-lpuart";
+			reg = <0x0 0x2290000 0x0 0x1000>;
+			interrupts = <GIC_SPI 235 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clockgen 4 1>;
+			clock-names = "ipg";
+			dma-names = "rx","tx";
+			dmas = <&edma0 1 26>,
+			       <&edma0 1 27>;
+			status = "disabled";
+		};
+
+		lpuart4: serial@22a0000 {
+			compatible = "fsl,ls1028a-lpuart";
+			reg = <0x0 0x22a0000 0x0 0x1000>;
+			interrupts = <GIC_SPI 236 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clockgen 4 1>;
+			clock-names = "ipg";
+			dma-names = "rx","tx";
+			dmas = <&edma0 1 24>,
+			       <&edma0 1 25>;
+			status = "disabled";
+		};
+
+		lpuart5: serial@22b0000 {
+			compatible = "fsl,ls1028a-lpuart";
+			reg = <0x0 0x22b0000 0x0 0x1000>;
+			interrupts = <GIC_SPI 237 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clockgen 4 1>;
+			clock-names = "ipg";
+			dma-names = "rx","tx";
+			dmas = <&edma0 1 22>,
+			       <&edma0 1 23>;
+			status = "disabled";
+		};
+
 		edma0: dma-controller@22c0000 {
 			#dma-cells = <2>;
 			compatible = "fsl,ls1028a-edma";