diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index 7b4099fcf81788714def505ff009e2b7a4948db2..d5c4669224b1734178f1a04efd42e9d5ec9cda27 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -17,14 +17,6 @@ / {
aliases {
ethernet0 = &emac;
- serial0 = &uart0;
- serial1 = &uart1;
- serial2 = &uart2;
- serial3 = &uart3;
- serial4 = &uart4;
- serial5 = &uart5;
- serial6 = &uart6;
- serial7 = &uart7;
};
chosen {
@@ -39,6 +31,14 @@ framebuffer@0 {
<&ahb_gates 44>;
status = "disabled";
};
+
+ framebuffer@1 {
+ compatible = "allwinner,simple-framebuffer", "simple-framebuffer";
+ allwinner,pipeline = "de_fe0-de_be0-lcd0-hdmi";
+ clocks = <&pll5 1>, <&ahb_gates 36>, <&ahb_gates 43>,
+ <&ahb_gates 44>, <&ahb_gates 46>;
+ status = "disabled";
+ };
};
cpus {
@@ -438,8 +438,8 @@ usbphy: phy@01c13400 {
reg-names = "phy_ctrl", "pmu1", "pmu2";
clocks = <&usb_clk 8>;
clock-names = "usb_phy";
- resets = <&usb_clk 1>, <&usb_clk 2>;
- reset-names = "usb1_reset", "usb2_reset";
+ resets = <&usb_clk 0>, <&usb_clk 1>, <&usb_clk 2>;
+ reset-names = "usb0_reset", "usb1_reset", "usb2_reset";
status = "disabled";
};
diff --git a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index fe3c559ca6a8e6d24412abe6d2a81c2a6b97bdda..bfa742817690d823d2044d3e6397f2237abb8cd9 100644
--- a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
@@ -55,6 +55,12 @@ / {
model = "Olimex A10s-Olinuxino Micro";
compatible = "olimex,a10s-olinuxino-micro", "allwinner,sun5i-a10s";
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart2;
+ serial2 = &uart3;
+ };
+
soc@01c00000 {
emac: ethernet@01c0b000 {
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
index 1b76667f3182694ffb7d055cb8f8e7230809a0bf..2e7d8263799d77fe864a4776285844deb6a21fa3 100644
--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
@@ -18,10 +18,6 @@ / {
aliases {
ethernet0 = &emac;
- serial0 = &uart0;
- serial1 = &uart1;
- serial2 = &uart2;
- serial3 = &uart3;
};
chosen {
@@ -390,8 +386,8 @@ usbphy: phy@01c13400 {
reg-names = "phy_ctrl", "pmu1";
clocks = <&usb_clk 8>;
clock-names = "usb_phy";
- resets = <&usb_clk 1>;
- reset-names = "usb1_reset";
+ resets = <&usb_clk 0>, <&usb_clk 1>;
+ reset-names = "usb0_reset", "usb1_reset";
status = "disabled";
};
diff --git a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
index eeed1f236ee8c400465cbe87824516462dc6ec63..c7be3abd9fcc31a9ab3280b0a7b4a01ba73880b4 100644
--- a/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
+++ b/arch/arm/boot/dts/sun5i-a13-hsg-h702.dts
@@ -53,6 +53,10 @@ / {
model = "HSG H702";
compatible = "hsg,h702", "allwinner,sun5i-a13";
+ aliases {
+ serial0 = &uart1;
+ };
+
soc@01c00000 {
mmc0: mmc@01c0f000 {
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
index 916ee8bb826f7186380ecaf967d55488f84db6aa..3decefb3c37ac438c27574e7aed940fa2a684ea8 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino-micro.dts
@@ -54,6 +54,10 @@ / {
model = "Olimex A13-Olinuxino Micro";
compatible = "olimex,a13-olinuxino-micro", "allwinner,sun5i-a13";
+ aliases {
+ serial0 = &uart1;
+ };
+
soc@01c00000 {
mmc0: mmc@01c0f000 {
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
index e31d291d14cbcd22add60622a9a2e83b8206ea11..b421f7fa197b475f7e0e3e23637c1acf6a7624ec 100644
--- a/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
+++ b/arch/arm/boot/dts/sun5i-a13-olinuxino.dts
@@ -55,6 +55,10 @@ / {
model = "Olimex A13-Olinuxino";
compatible = "olimex,a13-olinuxino", "allwinner,sun5i-a13";
+ aliases {
+ serial0 = &uart1;
+ };
+
soc@01c00000 {
mmc0: mmc@01c0f000 {
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
index c35217ea1f6473653b4d67ce953f3c761fa043a0..c556688f8b8ba400a7bef986690e40a633f836e2 100644
--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
@@ -16,11 +16,6 @@
/ {
interrupt-parent = <&intc>;
- aliases {
- serial0 = &uart1;
- serial1 = &uart3;
- };
-
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -349,8 +344,8 @@ usbphy: phy@01c13400 {
reg-names = "phy_ctrl", "pmu1";
clocks = <&usb_clk 8>;
clock-names = "usb_phy";
- resets = <&usb_clk 1>;
- reset-names = "usb1_reset";
+ resets = <&usb_clk 0>, <&usb_clk 1>;
+ reset-names = "usb0_reset", "usb1_reset";
status = "disabled";
};
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index f47156b6572bbaf09872686b70f09268200c3cc9..1e7e7bcf83071f005b2fd57c5fc8112432104f35 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -53,12 +53,6 @@ / {
interrupt-parent = <&gic>;
aliases {
- serial0 = &uart0;
- serial1 = &uart1;
- serial2 = &uart2;
- serial3 = &uart3;
- serial4 = &uart4;
- serial5 = &uart5;
ethernet0 = &gmac;
};
diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
index 1cf1214cc068f2e197335cfbfc10d1bf9054636d..bd7b15add6972d26fbcffdfa010fe3435141c0b5 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -55,6 +55,12 @@ / {
model = "LeMaker Banana Pi";
compatible = "lemaker,bananapi", "allwinner,sun7i-a20";
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart3;
+ serial2 = &uart7;
+ };
+
soc@01c00000 {
spi0: spi@01c05000 {
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
index 0e4bfa3b2b8540b361b07f9cf1c943c4cba8a9c6..0bcefcbbb756e0b7d7e8ad7450413e0c01c2a273 100644
--- a/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
+++ b/arch/arm/boot/dts/sun7i-a20-hummingbird.dts
@@ -19,6 +19,14 @@ / {
model = "Merrii A20 Hummingbird";
compatible = "merrii,a20-hummingbird", "allwinner,sun7i-a20";
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart2;
+ serial2 = &uart3;
+ serial3 = &uart4;
+ serial4 = &uart5;
+ };
+
soc@01c00000 {
mmc0: mmc@01c0f000 {
pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index 9d669cdf031d1aa1ea78c2d8a7c23b713dff3f98..66cc7770719867d8331b30b296611a1921bfac9b 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -20,6 +20,9 @@ / {
compatible = "olimex,a20-olinuxino-micro", "allwinner,sun7i-a20";
aliases {
+ serial0 = &uart0;
+ serial1 = &uart6;
+ serial2 = &uart7;
spi0 = &spi1;
spi1 = &spi2;
};
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index e21ce5992d565c348ae3b798ad232cd8f6c16c6b..89749ce34a844ef8777649a712232631534467d1 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -54,14 +54,6 @@ / {
aliases {
ethernet0 = &gmac;
- serial0 = &uart0;
- serial1 = &uart1;
- serial2 = &uart2;
- serial3 = &uart3;
- serial4 = &uart4;
- serial5 = &uart5;
- serial6 = &uart6;
- serial7 = &uart7;
};
chosen {
diff --git a/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts b/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
index 7f2117ce6985b1de46cfd2fbfbc42fb76e19a1d7..32ad80804dbbc3d31adb703b373c62e9cf597beb 100644
--- a/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
+++ b/arch/arm/boot/dts/sun8i-a23-ippo-q8h-v5.dts
@@ -55,6 +55,10 @@ / {
model = "Ippo Q8H Dual Core Tablet (v5)";
compatible = "ippo,q8h-v5", "allwinner,sun8i-a23";
+ aliases {
+ serial0 = &r_uart;
+ };
+
chosen {
bootargs = "earlyprintk console=ttyS0,115200";
};
diff --git a/arch/arm/boot/dts/sun8i-a23.dtsi b/arch/arm/boot/dts/sun8i-a23.dtsi
index 0746cd1024d7a73b32bcbf6002954a4859d77ee5..86584fcf5e323bc43489c79be74e43ef8931d3a2 100644
--- a/arch/arm/boot/dts/sun8i-a23.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23.dtsi
@@ -52,15 +52,6 @@
/ {
interrupt-parent = <&gic>;
- aliases {
- serial0 = &uart0;
- serial1 = &uart1;
- serial2 = &uart2;
- serial3 = &uart3;
- serial4 = &uart4;
- serial5 = &r_uart;
- };
-
cpus {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/sun9i-a80-optimus.dts b/arch/arm/boot/dts/sun9i-a80-optimus.dts
index 506948f582eee37a11fdb17ea5a7f5eb7277b390..11ec71072e815ac5b4e54a3db3cace2ee81b78b8 100644
--- a/arch/arm/boot/dts/sun9i-a80-optimus.dts
+++ b/arch/arm/boot/dts/sun9i-a80-optimus.dts
@@ -54,6 +54,11 @@ / {
model = "Merrii A80 Optimus Board";
compatible = "merrii,a80-optimus", "allwinner,sun9i-a80";
+ aliases {
+ serial0 = &uart0;
+ serial1 = &uart4;
+ };
+
chosen {
bootargs = "earlyprintk console=ttyS0,115200";
};
diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index 494714f67b57821816f1b484659765aca58b8eb0..9ef4438206a9986ed82b733ebeaf961f474b742a 100644
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -52,16 +52,6 @@
/ {
interrupt-parent = <&gic>;
- aliases {
- serial0 = &uart0;
- serial1 = &uart1;
- serial2 = &uart2;
- serial3 = &uart3;
- serial4 = &uart4;
- serial5 = &uart5;
- serial6 = &r_uart;
- };
-
cpus {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index caa21e9b8cd9819de5ff0c0e505a8a937940dfae..ccef8806bb58771b16a87dc80edc32e585597d29 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -189,6 +189,13 @@ static void __init armada_375_380_coherency_init(struct device_node *np)
coherency_cpu_base = of_iomap(np, 0);
arch_ioremap_caller = armada_pcie_wa_ioremap_caller;
+ /*
+ * We should switch the PL310 to I/O coherency mode only if
+ * I/O coherency is actually enabled.
+ */
+ if (!coherency_available())
+ return;
+
/*
* Add the PL310 property "arm,io-coherent". This makes sure the
* outer sync operation is not used, which allows to
diff --git a/arch/arm/mach-shmobile/board-ape6evm.c b/arch/arm/mach-shmobile/board-ape6evm.c
index 66f67816a844623977a4595ef23642ed381b3549..444f22d370f0ef7a4e35957abfc3d458e3d7e49e 100644
--- a/arch/arm/mach-shmobile/board-ape6evm.c
+++ b/arch/arm/mach-shmobile/board-ape6evm.c
@@ -18,6 +18,8 @@
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/interrupt.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/arm-gic.h>
#include <linux/kernel.h>
#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
@@ -273,6 +275,22 @@ static void __init ape6evm_add_standard_devices(void)
sizeof(ape6evm_leds_pdata));
}
+static void __init ape6evm_legacy_init_time(void)
+{
+ /* Do not invoke DT-based timers via clocksource_of_init() */
+}
+
+static void __init ape6evm_legacy_init_irq(void)
+{
+ void __iomem *gic_dist_base = ioremap_nocache(0xf1001000, 0x1000);
+ void __iomem *gic_cpu_base = ioremap_nocache(0xf1002000, 0x1000);
+
+ gic_init(0, 29, gic_dist_base, gic_cpu_base);
+
+ /* Do not invoke DT-based interrupt code via irqchip_init() */
+}
+
+
static const char *ape6evm_boards_compat_dt[] __initdata = {
"renesas,ape6evm",
NULL,
@@ -280,7 +298,9 @@ static const char *ape6evm_boards_compat_dt[] __initdata = {
DT_MACHINE_START(APE6EVM_DT, "ape6evm")
.init_early = shmobile_init_delay,
+ .init_irq = ape6evm_legacy_init_irq,
.init_machine = ape6evm_add_standard_devices,
.init_late = shmobile_init_late,
.dt_compat = ape6evm_boards_compat_dt,
+ .init_time = ape6evm_legacy_init_time,
MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index f8197eb6e5669ada1b8ddd57e7bb09e42bedfe62..65b128dd4072b8070fb1bb65edd97b7abb4c3d5e 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -21,6 +21,8 @@
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/arm-gic.h>
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/mfd/tmio.h>
@@ -811,6 +813,16 @@ static void __init lager_init(void)
lager_ksz8041_fixup);
}
+static void __init lager_legacy_init_irq(void)
+{
+ void __iomem *gic_dist_base = ioremap_nocache(0xf1001000, 0x1000);
+ void __iomem *gic_cpu_base = ioremap_nocache(0xf1002000, 0x1000);
+
+ gic_init(0, 29, gic_dist_base, gic_cpu_base);
+
+ /* Do not invoke DT-based interrupt code via irqchip_init() */
+}
+
static const char * const lager_boards_compat_dt[] __initconst = {
"renesas,lager",
NULL,
@@ -819,6 +831,7 @@ static const char * const lager_boards_compat_dt[] __initconst = {
DT_MACHINE_START(LAGER_DT, "lager")
.smp = smp_ops(r8a7790_smp_ops),
.init_early = shmobile_init_delay,
+ .init_irq = lager_legacy_init_irq,
.init_time = rcar_gen2_timer_init,
.init_machine = lager_init,
.init_late = shmobile_init_late,
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
index 3dd6edd9bd1d3dfe5b6bb7787e4d672c1a6f63be..cc9470dfb1cee51eb50d0597603c6a195d67af5f 100644
--- a/arch/arm/mach-shmobile/setup-rcar-gen2.c
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -133,7 +133,9 @@ void __init rcar_gen2_timer_init(void)
#ifdef CONFIG_COMMON_CLK
rcar_gen2_clocks_init(mode);
#endif
+#ifdef CONFIG_ARCH_SHMOBILE_MULTI
clocksource_of_init();
+#endif
}
struct memory_reserve_config {
diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index f1d027aa7a81ac3361401380553771bdb37d47d2..0edf2a6d2bbef7f78fcb8f5c0396445dde21618c 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -70,6 +70,18 @@ void __init shmobile_init_delay(void)
if (!max_freq)
return;
+#ifdef CONFIG_ARCH_SHMOBILE_LEGACY
+ /* Non-multiplatform r8a73a4 SoC cannot use arch timer due
+ * to GIC being initialized from C and arch timer via DT */
+ if (of_machine_is_compatible("renesas,r8a73a4"))
+ has_arch_timer = false;
+
+ /* Non-multiplatform r8a7790 SoC cannot use arch timer due
+ * to GIC being initialized from C and arch timer via DT */
+ if (of_machine_is_compatible("renesas,r8a7790"))
+ has_arch_timer = false;
+#endif
+
if (!has_arch_timer || !IS_ENABLED(CONFIG_ARM_ARCH_TIMER)) {
if (is_a7_a8_a9)
shmobile_setup_delay_hz(max_freq, 1, 3);
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 7864797609b3849628455782c79949f094f6997e..a673c7f7e208efe1bc9b2e2d4ff0cb8ab6a1c5da 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -1940,13 +1940,32 @@ void arm_iommu_release_mapping(struct dma_iommu_mapping *mapping)
}
EXPORT_SYMBOL_GPL(arm_iommu_release_mapping);
+static int __arm_iommu_attach_device(struct device *dev,
+ struct dma_iommu_mapping *mapping)
+{
+ int err;
+
+ err = iommu_attach_device(mapping->domain, dev);
+ if (err)
+ return err;
+
+ kref_get(&mapping->kref);
+ dev->archdata.mapping = mapping;
+
+ pr_debug("Attached IOMMU controller to %s device.\n", dev_name(dev));
+ return 0;
+}
+
/**
* arm_iommu_attach_device
* @dev: valid struct device pointer
* @mapping: io address space mapping structure (returned from
* arm_iommu_create_mapping)
*
- * Attaches specified io address space mapping to the provided device,
+ * Attaches specified io address space mapping to the provided device.
+ * This replaces the dma operations (dma_map_ops pointer) with the
+ * IOMMU aware version.
+ *
* More than one client might be attached to the same io address space
* mapping.
*/
@@ -1955,25 +1974,16 @@ int arm_iommu_attach_device(struct device *dev,
{
int err;
- err = iommu_attach_device(mapping->domain, dev);
+ err = __arm_iommu_attach_device(dev, mapping);
if (err)
return err;
- kref_get(&mapping->kref);
- dev->archdata.mapping = mapping;
-
- pr_debug("Attached IOMMU controller to %s device.\n", dev_name(dev));
+ set_dma_ops(dev, &iommu_ops);
return 0;
}
EXPORT_SYMBOL_GPL(arm_iommu_attach_device);
-/**
- * arm_iommu_detach_device
- * @dev: valid struct device pointer
- *
- * Detaches the provided device from a previously attached map.
- */
-void arm_iommu_detach_device(struct device *dev)
+static void __arm_iommu_detach_device(struct device *dev)
{
struct dma_iommu_mapping *mapping;
@@ -1989,6 +1999,19 @@ void arm_iommu_detach_device(struct device *dev)
pr_debug("Detached IOMMU controller from %s device.\n", dev_name(dev));
}
+
+/**
+ * arm_iommu_detach_device
+ * @dev: valid struct device pointer
+ *
+ * Detaches the provided device from a previously attached map.
+ * This voids the dma operations (dma_map_ops pointer)
+ */
+void arm_iommu_detach_device(struct device *dev)
+{
+ __arm_iommu_detach_device(dev);
+ set_dma_ops(dev, NULL);
+}
EXPORT_SYMBOL_GPL(arm_iommu_detach_device);
static struct dma_map_ops *arm_get_iommu_dma_map_ops(bool coherent)
@@ -2011,7 +2034,7 @@ static bool arm_setup_iommu_dma_ops(struct device *dev, u64 dma_base, u64 size,
return false;
}
- if (arm_iommu_attach_device(dev, mapping)) {
+ if (__arm_iommu_attach_device(dev, mapping)) {
pr_warn("Failed to attached device %s to IOMMU_mapping\n",
dev_name(dev));
arm_iommu_release_mapping(mapping);
@@ -2025,7 +2048,7 @@ static void arm_teardown_iommu_dma_ops(struct device *dev)
{
struct dma_iommu_mapping *mapping = dev->archdata.mapping;
- arm_iommu_detach_device(dev);
+ __arm_iommu_detach_device(dev);
arm_iommu_release_mapping(mapping);
}