17 files changed, 101 insertions, 47 deletions

diff --git a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
index 558cdf3c9abc..d4eab9227ea4 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt
@@ -1,4 +1,19 @@
-GPIO line that should be set high/low to power off a device
+Driver a GPIO line that can be used to turn the power off.
+
+The driver supports both level triggered and edge triggered power off.
+At driver load time, the driver will request the given gpio line and
+install a pm_power_off handler. If the optional properties 'input' is
+not found, the GPIO line will be driven in the inactive
+state. Otherwise its configured as an input.
+
+When the pm_power_off is called, the gpio is configured as an output,
+and drive active, so triggering a level triggered power off
+condition. This will also cause an inactive->active edge condition, so
+triggering positive edge triggered power off. After a delay of 100ms,
+the GPIO is set to inactive, thus causing an active->inactive edge,
+triggering negative edge triggered power off. After another 100ms
+delay the GPIO is driver active again. If the power is still on and
+the CPU still running after a 3000ms delay, a WARN_ON(1) is emitted.
 
 Required properties:
 - compatible : should be "gpio-poweroff".
@@ -13,10 +28,9 @@ Optional properties:
   property is not specified, the GPIO is initialized as an output in its
   inactive state.
 
-
 Examples:
 
 gpio-poweroff {
         compatible = "gpio-poweroff";
-        gpios = <&gpio 4 0>; /* GPIO 4 Active Low */
+        gpios = <&gpio 4 0>;
 };
diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
index cf6c48a09eac..4c0abe85405f 100644
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -50,17 +50,19 @@
                 ranges;
 
                 serial@d0012000 {
-                                compatible = "ns16550";
+                                compatible = "snps,dw-apb-uart";
                                 reg = <0xd0012000 0x100>;
                                 reg-shift = <2>;
                                 interrupts = <41>;
+                                reg-io-width = <4>;
                                 status = "disabled";
                 };
                 serial@d0012100 {
-                                compatible = "ns16550";
+                                compatible = "snps,dw-apb-uart";
                                 reg = <0xd0012100 0x100>;
                                 reg-shift = <2>;
                                 interrupts = <42>;
+                                reg-io-width = <4>;
                                 status = "disabled";
                 };
 
diff --git a/arch/arm/boot/dts/armada-xp-mv78230.dtsi b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
index c45c7b4dc352..271855a6e224 100644
--- a/arch/arm/boot/dts/armada-xp-mv78230.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
@@ -34,7 +34,14 @@
                 reg = <0>;
                 clocks = <&cpuclk 0>;
             };
-        }
+
+            cpu@1 {
+                device_type = "cpu";
+                compatible = "marvell,sheeva-v7";
+                reg = <1>;
+                clocks = <&cpuclk 1>;
+            };
+        };
 
         soc {
                 pinctrl {
diff --git a/arch/arm/boot/dts/armada-xp-mv78260.dtsi b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
index a2aee5707377..1c1937dbce73 100644
--- a/arch/arm/boot/dts/armada-xp-mv78260.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
@@ -85,5 +85,13 @@
                         #interrupts-cells = <2>;
                         interrupts = <24>;
                 };
+
+                ethernet@d0034000 {
+                                compatible = "marvell,armada-370-neta";
+                                reg = <0xd0034000 0x2500>;
+                                interrupts = <14>;
+                                clocks = <&gateclk 1>;
+                                status = "disabled";
+                };
         };
 };
diff --git a/arch/arm/boot/dts/armada-xp-mv78460.dtsi b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
index da03a129243a..4905cf3a5ef8 100644
--- a/arch/arm/boot/dts/armada-xp-mv78460.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
@@ -100,5 +100,13 @@
                         #interrupts-cells = <2>;
                         interrupts = <24>;
                 };
+
+                ethernet@d0034000 {
+                                compatible = "marvell,armada-370-neta";
+                                reg = <0xd0034000 0x2500>;
+                                interrupts = <14>;
+                                clocks = <&gateclk 1>;
+                                status = "disabled";
+                };
         };
  };
diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi
index 367aa3f94912..2e37ef101c90 100644
--- a/arch/arm/boot/dts/armada-xp.dtsi
+++ b/arch/arm/boot/dts/armada-xp.dtsi
@@ -42,17 +42,19 @@
 
         soc {
                 serial@d0012200 {
-                                compatible = "ns16550";
+                                compatible = "snps,dw-apb-uart";
                                 reg = <0xd0012200 0x100>;
                                 reg-shift = <2>;
                                 interrupts = <43>;
+                                reg-io-width = <4>;
                                 status = "disabled";
                 };
                 serial@d0012300 {
-                                compatible = "ns16550";
+                                compatible = "snps,dw-apb-uart";
                                 reg = <0xd0012300 0x100>;
                                 reg-shift = <2>;
                                 interrupts = <44>;
+                                reg-io-width = <4>;
                                 status = "disabled";
                 };
 
@@ -93,14 +95,6 @@
                                 status = "disabled";
                 };
 
-                ethernet@d0034000 {
-                                compatible = "marvell,armada-370-neta";
-                                reg = <0xd0034000 0x2500>;
-                                interrupts = <14>;
-                                clocks = <&gateclk 1>;
-                                status = "disabled";
-                };
-
                 xor@d0060900 {
                         compatible = "marvell,orion-xor";
                         reg = <0xd0060900 0x100
diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index f3f7e9d8adca..42eac1ff3cc8 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -117,6 +117,7 @@
                 pinctrl: pinctrl@d0200 {
                         compatible = "marvell,dove-pinctrl";
                         reg = <0xd0200 0x10>;
+                        clocks = <&gate_clk 22>;
                 };
 
                 spi0: spi@10600 {
diff --git a/arch/arm/boot/dts/kirkwood-6282.dtsi b/arch/arm/boot/dts/kirkwood-6282.dtsi
index 9ae2004d5675..4ccea2130a6c 100644
--- a/arch/arm/boot/dts/kirkwood-6282.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6282.dtsi
@@ -39,6 +39,7 @@
                         #size-cells = <0>;
                         interrupts = <32>;
                         clock-frequency = <100000>;
+                        clocks = <&gate_clk 7>;
                         status = "disabled";
                 };
         };
diff --git a/arch/arm/boot/dts/kirkwood-topkick.dts b/arch/arm/boot/dts/kirkwood-topkick.dts
index c0de5a7f660d..cd15452a52a6 100644
--- a/arch/arm/boot/dts/kirkwood-topkick.dts
+++ b/arch/arm/boot/dts/kirkwood-topkick.dts
@@ -82,4 +82,21 @@
                         gpios = <&gpio1 16 1>;
                 };
         };
+        regulators {
+                compatible = "simple-bus";
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                sata0_power: regulator@1 {
+                        compatible = "regulator-fixed";
+                        reg = <1>;
+                        regulator-name = "SATA0 Power";
+                        regulator-min-microvolt = <5000000>;
+                        regulator-max-microvolt = <5000000>;
+                        enable-active-high;
+                        regulator-always-on;
+                        regulator-boot-on;
+                        gpio = <&gpio1 4 0>;
+                };
+        };
 };
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index 7735cee4a9c6..110d6cbb795b 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -144,6 +144,7 @@
                         compatible = "marvell,orion-ehci";
                         reg = <0x50000 0x1000>;
                         interrupts = <19>;
+                        clocks = <&gate_clk 3>;
                         status = "okay";
                 };
 
diff --git a/arch/arm/configs/mvebu_defconfig b/arch/arm/configs/mvebu_defconfig
index a702fb345c01..b5bc96cb65a7 100644
--- a/arch/arm/configs/mvebu_defconfig
+++ b/arch/arm/configs/mvebu_defconfig
@@ -33,9 +33,7 @@ CONFIG_MVNETA=y
 CONFIG_MARVELL_PHY=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_OF_PLATFORM=y
-CONFIG_I2C=y
-CONFIG_I2C_MV64XXX=y
+CONFIG_SERIAL_8250_DW=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_USB_SUPPORT is not set
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index ff4150a2ad05..de4fd2bb1e27 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -67,6 +67,10 @@ static void __init kirkwood_legacy_clk_init(void)
         orion_clkdev_add(NULL, "mv643xx_eth_port.1",
                          of_clk_get_from_provider(&clkspec));
 
+        clkspec.args[0] = CGC_BIT_SDIO;
+        orion_clkdev_add(NULL, "mvsdio",
+                         of_clk_get_from_provider(&clkspec));
+
 }
 
 static void __init kirkwood_of_clk_init(void)
diff --git a/arch/arm/mach-kirkwood/board-usi_topkick.c b/arch/arm/mach-kirkwood/board-usi_topkick.c
index 15e69fcde9f4..23d2dd1b1b1e 100644
--- a/arch/arm/mach-kirkwood/board-usi_topkick.c
+++ b/arch/arm/mach-kirkwood/board-usi_topkick.c
@@ -64,8 +64,6 @@ static unsigned int topkick_mpp_config[] __initdata = {
         0
 };
 
-#define TOPKICK_SATA0_PWR_ENABLE 36
-
 void __init usi_topkick_init(void)
 {
         /*
@@ -73,8 +71,6 @@ void __init usi_topkick_init(void)
          */
         kirkwood_mpp_conf(topkick_mpp_config);
 
-        /* SATA0 power enable */
-        gpio_set_value(TOPKICK_SATA0_PWR_ENABLE, 1);
 
         kirkwood_ge00_init(&topkick_ge00_data);
         kirkwood_sdio_init(&topkick_mvsdio_data);
diff --git a/drivers/clk/mvebu/clk-gating-ctrl.c b/drivers/clk/mvebu/clk-gating-ctrl.c
index c6d3c263b070..8fa5408b6c7d 100644
--- a/drivers/clk/mvebu/clk-gating-ctrl.c
+++ b/drivers/clk/mvebu/clk-gating-ctrl.c
@@ -32,7 +32,7 @@ struct mvebu_soc_descr {
 
 #define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw)
 
-static struct clk __init *mvebu_clk_gating_get_src(
+static struct clk *mvebu_clk_gating_get_src(
         struct of_phandle_args *clkspec, void *data)
 {
         struct mvebu_gating_ctrl *ctrl = (struct mvebu_gating_ctrl *)data;
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index ac71f555dd72..e17fad03cb80 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1361,13 +1361,16 @@ static int mv_xor_probe(struct platform_device *pdev)
 err_channel_add:
         for (i = 0; i < MV_XOR_MAX_CHANNELS; i++)
                 if (xordev->channels[i]) {
+                        mv_xor_channel_remove(xordev->channels[i]);
                         if (pdev->dev.of_node)
                                 irq_dispose_mapping(xordev->channels[i]->irq);
-                        mv_xor_channel_remove(xordev->channels[i]);
                 }
 
-        clk_disable_unprepare(xordev->clk);
-        clk_put(xordev->clk);
+        if (!IS_ERR(xordev->clk)) {
+                clk_disable_unprepare(xordev->clk);
+                clk_put(xordev->clk);
+        }
+
         return ret;
 }
 
diff --git a/drivers/pinctrl/mvebu/pinctrl-dove.c b/drivers/pinctrl/mvebu/pinctrl-dove.c
index 40c9c3eecd94..9cc219f61000 100644
--- a/drivers/pinctrl/mvebu/pinctrl-dove.c
+++ b/drivers/pinctrl/mvebu/pinctrl-dove.c
@@ -595,8 +595,11 @@ static int __devinit dove_pinctrl_probe(struct platform_device *pdev)
          * grab clk to make sure it is ticking.
          */
         clk = devm_clk_get(&pdev->dev, NULL);
-        if (!IS_ERR(clk))
-                clk_prepare_enable(clk);
+        if (IS_ERR(clk)) {
+                dev_err(&pdev->dev, "Unable to get pdma clock");
+                return PTR_RET(clk);
+        }
+        clk_prepare_enable(clk);
 
         return mvebu_pinctrl_probe(pdev);
 }
diff --git a/drivers/power/reset/gpio-poweroff.c b/drivers/power/reset/gpio-poweroff.c
index 0491e5335d02..adc943b3fc3f 100644
--- a/drivers/power/reset/gpio-poweroff.c
+++ b/drivers/power/reset/gpio-poweroff.c
@@ -29,15 +29,16 @@ static int gpio_active_low;
 
 static void gpio_poweroff_do_poweroff(void)
 {
-        BUG_ON(gpio_num == -1);
+        BUG_ON(!gpio_is_valid(gpio_num));
 
-        /* drive it active */
+        /* drive it active, also inactive->active edge */
         gpio_direction_output(gpio_num, !gpio_active_low);
         mdelay(100);
-        /* rising edge or drive inactive */
+        /* drive inactive, also active->inactive edge */
         gpio_set_value(gpio_num, gpio_active_low);
         mdelay(100);
-        /* falling edge */
+
+        /* drive it active, also inactive->active edge */
         gpio_set_value(gpio_num, !gpio_active_low);
 
         /* give it some time */
@@ -60,15 +61,12 @@ static int __devinit gpio_poweroff_probe(struct platform_device *pdev)
         }
 
         gpio_num = of_get_gpio_flags(pdev->dev.of_node, 0, &flags);
-        if (gpio_num < 0) {
-                pr_err("%s: Could not get GPIO configuration: %d",
-                       __func__, gpio_num);
-                return -ENODEV;
-        }
+        if (!gpio_is_valid(gpio_num))
+                return gpio_num;
+
         gpio_active_low = flags & OF_GPIO_ACTIVE_LOW;
 
-        if (of_get_property(pdev->dev.of_node, "input", NULL))
-                input = true;
+        input = of_property_read_bool(pdev->dev.of_node, "input");
 
         ret = gpio_request(gpio_num, "poweroff-gpio");
         if (ret) {
@@ -98,8 +96,7 @@ err:
 
 static int __devexit gpio_poweroff_remove(struct platform_device *pdev)
 {
-        if (gpio_num != -1)
-                gpio_free(gpio_num);
+        gpio_free(gpio_num);
         if (pm_power_off == &gpio_poweroff_do_poweroff)
                 pm_power_off = NULL;
 
@@ -115,15 +112,15 @@ static struct platform_driver gpio_poweroff_driver = {
         .probe = gpio_poweroff_probe,
         .remove = __devexit_p(gpio_poweroff_remove),
         .driver = {
-                   .name = "poweroff-gpio",
-                   .owner = THIS_MODULE,
-                   .of_match_table = of_gpio_poweroff_match,
-                   },
+                .name = "poweroff-gpio",
+                .owner = THIS_MODULE,
+                .of_match_table = of_gpio_poweroff_match,
+        },
 };
 
 module_platform_driver(gpio_poweroff_driver);
 
 MODULE_AUTHOR("Jamie Lentin <jm@lentin.co.uk>");
 MODULE_DESCRIPTION("GPIO poweroff driver");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:poweroff-gpio");