Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc device tree conversions (part 2) from Olof Johansson:
 "These continue the device tree work from part 1, this set is for the
  tegra, mxs and imx platforms, all of which have dependencies on clock
  or pinctrl changes submitted earlier."

Fix up trivial conflicts due to nearby changes in
drivers/{gpio/gpio,i2c/busses/i2c}-mxs.c

* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (73 commits)
  ARM: dt: tegra: invert status=disable vs status=okay
  ARM: dt: tegra: consistent basic property ordering
  ARM: dt: tegra: sort nodes based on bus order
  ARM: dt: tegra: remove duplicate device_type property
  ARM: dt: tegra: consistenly use lower-case for hex constants
  ARM: dt: tegra: format regs properties consistently
  ARM: dt: tegra: gpio comment cleanup
  ARM: dt: tegra: remove unnecessary unit addresses
  ARM: dt: tegra: whitespace cleanup
  ARM: dt: tegra cardhu: fix typo in SDHCI node name
  ARM: dt: tegra: cardhu: register core regulator tps62361
  ARM: dt: tegra30.dtsi: Add SMMU node
  ARM: dt: tegra20.dtsi: Add GART node
  ARM: dt: tegra30.dtsi: Add Memory Controller(MC) nodes
  ARM: dt: tegra20.dtsi: Add Memory Controller(MC) nodes
  ARM: dt: tegra: Add device tree support for AHB
  ARM: dts: enable audio support for imx28-evk
  ARM: dts: enable i2c device for imx28-evk
  i2c: mxs: add device tree probe support
  ARM: dts: enable mmc for imx28-evk
  ...

11 files changed, 169 insertions, 74 deletions

diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
index 07d5383d68ee..91cf0625819c 100644
--- a/arch/arm/mach-mxs/Kconfig
+++ b/arch/arm/mach-mxs/Kconfig
@@ -7,18 +7,28 @@ config MXS_OCOTP
 
 config SOC_IMX23
         bool
+        select ARM_AMBA
         select CPU_ARM926T
         select HAVE_PWM
         select PINCTRL_IMX23
 
 config SOC_IMX28
         bool
+        select ARM_AMBA
         select CPU_ARM926T
         select HAVE_PWM
         select PINCTRL_IMX28
 
 comment "MXS platforms:"
 
+config MACH_MXS_DT
+        bool "Support MXS platforms from device tree"
+        select SOC_IMX23
+        select SOC_IMX28
+        help
+          Include support for Freescale MXS platforms(i.MX23 and i.MX28)
+          using the device tree for discovery
+
 config MACH_STMP378X_DEVB
         bool "Support STMP378x_devb Platform"
         select SOC_IMX23
diff --git a/arch/arm/mach-mxs/Makefile b/arch/arm/mach-mxs/Makefile
index 6ce21a26412e..e41590ccb437 100644
--- a/arch/arm/mach-mxs/Makefile
+++ b/arch/arm/mach-mxs/Makefile
@@ -4,6 +4,7 @@ obj-y := devices.o icoll.o iomux.o system.o timer.o mm.o
 obj-$(CONFIG_MXS_OCOTP) += ocotp.o
 obj-$(CONFIG_PM) += pm.o
 
+obj-$(CONFIG_MACH_MXS_DT) += mach-mxs.o
 obj-$(CONFIG_MACH_STMP378X_DEVB) += mach-stmp378x_devb.o
 obj-$(CONFIG_MACH_MX23EVK) += mach-mx23evk.o
 obj-$(CONFIG_MACH_MX28EVK) += mach-mx28evk.o
diff --git a/arch/arm/mach-mxs/devices/Kconfig b/arch/arm/mach-mxs/devices/Kconfig
index b8913df4cfa2..19659de1c4e8 100644
--- a/arch/arm/mach-mxs/devices/Kconfig
+++ b/arch/arm/mach-mxs/devices/Kconfig
@@ -1,6 +1,5 @@
 config MXS_HAVE_AMBA_DUART
         bool
-        select ARM_AMBA
 
 config MXS_HAVE_PLATFORM_AUART
         bool
diff --git a/arch/arm/mach-mxs/devices/platform-dma.c b/arch/arm/mach-mxs/devices/platform-dma.c
index 6a0202b1016c..46824501de00 100644
--- a/arch/arm/mach-mxs/devices/platform-dma.c
+++ b/arch/arm/mach-mxs/devices/platform-dma.c
@@ -14,7 +14,7 @@
 #include <mach/mx28.h>
 #include <mach/devices-common.h>
 
-static struct platform_device *__init mxs_add_dma(const char *devid,
+struct platform_device *__init mxs_add_dma(const char *devid,
                                                 resource_size_t base)
 {
         struct resource res[] = {
@@ -29,22 +29,3 @@ static struct platform_device *__init mxs_add_dma(const char *devid,
                                 res, ARRAY_SIZE(res), NULL, 0,
                                 DMA_BIT_MASK(32));
 }
-
-static int __init mxs_add_mxs_dma(void)
-{
-        char *apbh = "mxs-dma-apbh";
-        char *apbx = "mxs-dma-apbx";
-
-        if (cpu_is_mx23()) {
-                mxs_add_dma(apbh, MX23_APBH_DMA_BASE_ADDR);
-                mxs_add_dma(apbx, MX23_APBX_DMA_BASE_ADDR);
-        }
-
-        if (cpu_is_mx28()) {
-                mxs_add_dma(apbh, MX28_APBH_DMA_BASE_ADDR);
-                mxs_add_dma(apbx, MX28_APBX_DMA_BASE_ADDR);
-        }
-
-        return 0;
-}
-arch_initcall(mxs_add_mxs_dma);
diff --git a/arch/arm/mach-mxs/devices/platform-gpio-mxs.c b/arch/arm/mach-mxs/devices/platform-gpio-mxs.c
index ed0885e414e0..cd99f19ec637 100644
--- a/arch/arm/mach-mxs/devices/platform-gpio-mxs.c
+++ b/arch/arm/mach-mxs/devices/platform-gpio-mxs.c
@@ -14,7 +14,7 @@
 #include <mach/devices-common.h>
 
 struct platform_device *__init mxs_add_gpio(
-        int id, resource_size_t iobase, int irq)
+        char *name, int id, resource_size_t iobase, int irq)
 {
         struct resource res[] = {
                 {
@@ -29,25 +29,5 @@ struct platform_device *__init mxs_add_gpio(
         };
 
         return platform_device_register_resndata(&mxs_apbh_bus,
-                        "gpio-mxs", id, res, ARRAY_SIZE(res), NULL, 0);
+                        name, id, res, ARRAY_SIZE(res), NULL, 0);
 }
-
-static int __init mxs_add_mxs_gpio(void)
-{
-        if (cpu_is_mx23()) {
-                mxs_add_gpio(0, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO0);
-                mxs_add_gpio(1, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO1);
-                mxs_add_gpio(2, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO2);
-        }
-
-        if (cpu_is_mx28()) {
-                mxs_add_gpio(0, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO0);
-                mxs_add_gpio(1, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO1);
-                mxs_add_gpio(2, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO2);
-                mxs_add_gpio(3, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO3);
-                mxs_add_gpio(4, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO4);
-        }
-
-        return 0;
-}
-postcore_initcall(mxs_add_mxs_gpio);
diff --git a/arch/arm/mach-mxs/devices/platform-mxs-mmc.c b/arch/arm/mach-mxs/devices/platform-mxs-mmc.c
index bef9d923f54e..b33c9d05c552 100644
--- a/arch/arm/mach-mxs/devices/platform-mxs-mmc.c
+++ b/arch/arm/mach-mxs/devices/platform-mxs-mmc.c
@@ -17,8 +17,9 @@
 #include <mach/mx28.h>
 #include <mach/devices-common.h>
 
-#define mxs_mxs_mmc_data_entry_single(soc, _id, hwid)                   \
+#define mxs_mxs_mmc_data_entry_single(soc, _devid, _id, hwid)           \
         {                                                               \
+                .devid = _devid,                                        \
                 .id = _id,                                              \
                 .iobase = soc ## _SSP ## hwid ## _BASE_ADDR,            \
                 .dma = soc ## _DMA_SSP ## hwid,                         \
@@ -26,23 +27,23 @@
                 .irq_dma = soc ## _INT_SSP ## hwid ## _DMA,             \
         }
 
-#define mxs_mxs_mmc_data_entry(soc, _id, hwid)                          \
-        [_id] = mxs_mxs_mmc_data_entry_single(soc, _id, hwid)
+#define mxs_mxs_mmc_data_entry(soc, _devid, _id, hwid)                  \
+        [_id] = mxs_mxs_mmc_data_entry_single(soc, _devid, _id, hwid)
 
 
 #ifdef CONFIG_SOC_IMX23
 const struct mxs_mxs_mmc_data mx23_mxs_mmc_data[] __initconst = {
-        mxs_mxs_mmc_data_entry(MX23, 0, 1),
-        mxs_mxs_mmc_data_entry(MX23, 1, 2),
+        mxs_mxs_mmc_data_entry(MX23, "imx23-mmc", 0, 1),
+        mxs_mxs_mmc_data_entry(MX23, "imx23-mmc", 1, 2),
 };
 #endif
 
 #ifdef CONFIG_SOC_IMX28
 const struct mxs_mxs_mmc_data mx28_mxs_mmc_data[] __initconst = {
-        mxs_mxs_mmc_data_entry(MX28, 0, 0),
-        mxs_mxs_mmc_data_entry(MX28, 1, 1),
-        mxs_mxs_mmc_data_entry(MX28, 2, 2),
-        mxs_mxs_mmc_data_entry(MX28, 3, 3),
+        mxs_mxs_mmc_data_entry(MX28, "imx28-mmc", 0, 0),
+        mxs_mxs_mmc_data_entry(MX28, "imx28-mmc", 1, 1),
+        mxs_mxs_mmc_data_entry(MX28, "imx28-mmc", 2, 2),
+        mxs_mxs_mmc_data_entry(MX28, "imx28-mmc", 3, 3),
 };
 #endif
 
@@ -70,6 +71,6 @@ struct platform_device *__init mxs_add_mxs_mmc(
                 },
         };
 
-        return mxs_add_platform_device("mxs-mmc", data->id,
+        return mxs_add_platform_device(data->devid, data->id,
                         res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
 }
diff --git a/arch/arm/mach-mxs/include/mach/common.h b/arch/arm/mach-mxs/include/mach/common.h
index 84af61cf6a62..de6c7ba42544 100644
--- a/arch/arm/mach-mxs/include/mach/common.h
+++ b/arch/arm/mach-mxs/include/mach/common.h
@@ -18,17 +18,20 @@ extern void mxs_restart(char, const char *);
 extern int mxs_saif_clkmux_select(unsigned int clkmux);
 
 extern void mx23_soc_init(void);
-extern int mx23_register_gpios(void);
 extern int mx23_clocks_init(void);
 extern void mx23_map_io(void);
 extern void mx23_init_irq(void);
 
 extern void mx28_soc_init(void);
-extern int mx28_register_gpios(void);
 extern int mx28_clocks_init(void);
 extern void mx28_map_io(void);
 extern void mx28_init_irq(void);
 
 extern void icoll_init_irq(void);
 
+extern struct platform_device *mxs_add_dma(const char *devid,
+                                                resource_size_t base);
+extern struct platform_device *mxs_add_gpio(char *name, int id,
+                                            resource_size_t iobase, int irq);
+
 #endif /* __MACH_MXS_COMMON_H__ */
diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
index 21e45a70d344..e8b1d958240b 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -82,8 +82,9 @@ struct platform_device * __init mxs_add_mxs_i2c(
                 const struct mxs_mxs_i2c_data *data);
 
 /* mmc */
-#include <mach/mmc.h>
+#include <linux/mmc/mxs-mmc.h>
 struct mxs_mxs_mmc_data {
+        const char *devid;
         int id;
         resource_size_t iobase;
         resource_size_t dma;
diff --git a/arch/arm/mach-mxs/include/mach/mmc.h b/arch/arm/mach-mxs/include/mach/mmc.h
deleted file mode 100644
index 211547a05564..000000000000
--- a/arch/arm/mach-mxs/include/mach/mmc.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __MACH_MXS_MMC_H__
-#define __MACH_MXS_MMC_H__
-
-struct mxs_mmc_platform_data {
-        int wp_gpio;    /* write protect pin */
-        unsigned int flags;
-#define SLOTF_4_BIT_CAPABLE     (1 << 0)
-#define SLOTF_8_BIT_CAPABLE     (1 << 1)
-};
-#endif /* __MACH_MXS_MMC_H__ */
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
new file mode 100644
index 000000000000..8cac94b33020
--- /dev/null
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2012 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/init.h>
+#include <linux/irqdomain.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <mach/common.h>
+
+static int __init mxs_icoll_add_irq_domain(struct device_node *np,
+                                struct device_node *interrupt_parent)
+{
+        irq_domain_add_legacy(np, 128, 0, 0, &irq_domain_simple_ops, NULL);
+
+        return 0;
+}
+
+static int __init mxs_gpio_add_irq_domain(struct device_node *np,
+                                struct device_node *interrupt_parent)
+{
+        static int gpio_irq_base = MXS_GPIO_IRQ_START;
+
+        irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, NULL);
+        gpio_irq_base += 32;
+
+        return 0;
+}
+
+static const struct of_device_id mxs_irq_match[] __initconst = {
+        { .compatible = "fsl,mxs-icoll", .data = mxs_icoll_add_irq_domain, },
+        { .compatible = "fsl,mxs-gpio", .data = mxs_gpio_add_irq_domain, },
+        { /* sentinel */ }
+};
+
+static void __init mxs_dt_init_irq(void)
+{
+        icoll_init_irq();
+        of_irq_init(mxs_irq_match);
+}
+
+static void __init imx23_timer_init(void)
+{
+        mx23_clocks_init();
+}
+
+static struct sys_timer imx23_timer = {
+        .init = imx23_timer_init,
+};
+
+static void __init imx28_timer_init(void)
+{
+        mx28_clocks_init();
+}
+
+static struct sys_timer imx28_timer = {
+        .init = imx28_timer_init,
+};
+
+static void __init imx28_evk_init(void)
+{
+        struct clk *clk;
+
+        /* Enable fec phy clock */
+        clk = clk_get_sys("enet_out", NULL);
+        if (!IS_ERR(clk))
+                clk_prepare_enable(clk);
+}
+
+static void __init mxs_machine_init(void)
+{
+        if (of_machine_is_compatible("fsl,imx28-evk"))
+                imx28_evk_init();
+
+        of_platform_populate(NULL, of_default_bus_match_table,
+                                NULL, NULL);
+}
+
+static const char *imx23_dt_compat[] __initdata = {
+        "fsl,imx23-evk",
+        "fsl,imx23",
+        NULL,
+};
+
+static const char *imx28_dt_compat[] __initdata = {
+        "fsl,imx28-evk",
+        "fsl,imx28",
+        NULL,
+};
+
+DT_MACHINE_START(IMX23, "Freescale i.MX23 (Device Tree)")
+        .map_io         = mx23_map_io,
+        .init_irq       = mxs_dt_init_irq,
+        .timer          = &imx23_timer,
+        .init_machine   = mxs_machine_init,
+        .dt_compat      = imx23_dt_compat,
+        .restart        = mxs_restart,
+MACHINE_END
+
+DT_MACHINE_START(IMX28, "Freescale i.MX28 (Device Tree)")
+        .map_io         = mx28_map_io,
+        .init_irq       = mxs_dt_init_irq,
+        .timer          = &imx28_timer,
+        .init_machine   = mxs_machine_init,
+        .dt_compat      = imx28_dt_compat,
+        .restart        = mxs_restart,
+MACHINE_END
diff --git a/arch/arm/mach-mxs/mm.c b/arch/arm/mach-mxs/mm.c
index 67a384edcf5b..dccb67a9e7c4 100644
--- a/arch/arm/mach-mxs/mm.c
+++ b/arch/arm/mach-mxs/mm.c
@@ -66,9 +66,25 @@ void __init mx28_init_irq(void)
 void __init mx23_soc_init(void)
 {
         pinctrl_provide_dummies();
+
+        mxs_add_dma("imx23-dma-apbh", MX23_APBH_DMA_BASE_ADDR);
+        mxs_add_dma("imx23-dma-apbx", MX23_APBX_DMA_BASE_ADDR);
+
+        mxs_add_gpio("imx23-gpio", 0, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO0);
+        mxs_add_gpio("imx23-gpio", 1, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO1);
+        mxs_add_gpio("imx23-gpio", 2, MX23_PINCTRL_BASE_ADDR, MX23_INT_GPIO2);
 }
 
 void __init mx28_soc_init(void)
 {
         pinctrl_provide_dummies();
+
+        mxs_add_dma("imx28-dma-apbh", MX23_APBH_DMA_BASE_ADDR);
+        mxs_add_dma("imx28-dma-apbx", MX23_APBX_DMA_BASE_ADDR);
+
+        mxs_add_gpio("imx28-gpio", 0, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO0);
+        mxs_add_gpio("imx28-gpio", 1, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO1);
+        mxs_add_gpio("imx28-gpio", 2, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO2);
+        mxs_add_gpio("imx28-gpio", 3, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO3);
+        mxs_add_gpio("imx28-gpio", 4, MX28_PINCTRL_BASE_ADDR, MX28_INT_GPIO4);
 }