Merge tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "This merge window brings a good size of cleanups on various platforms.
  Among the bigger ones:

   - Removal of Samsung s5pc100 and s5p64xx platforms.  Both of these
     have lacked active support for quite a while, and after asking
     around nobody showed interest in keeping them around.  If needed,
     they could be resurrected in the future but it's more likely that
     we would prefer reintroduction of them as DT and
     multiplatform-enabled platforms instead.

   - OMAP4 controller code register define diet.  They defined a lot of
     registers that were never actually used, etc.

   - Move of some of the Tegra platform code (PMC, APBIO, fuse,
     powergate) to drivers/soc so it can be shared with 64-bit code.
     This also converts them over to traditional driver models where
     possible.

   - Removal of legacy gpio-samsung driver, since the last users have
     been removed (moved to pinctrl)

  Plus a bunch of smaller changes for various platforms that sort of
  dissapear in the diffstat for the above.  clps711x cleanups, shmobile
  header file refactoring/moves for multiplatform friendliness, some
  misc cleanups, etc"

* tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits)
  drivers: CCI: Correct use of ! and &
  video: clcd-versatile: Depend on ARM
  video: fix up versatile CLCD helper move
  MAINTAINERS: Add sdhci-st file to ARCH/STI architecture
  ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
  MAINTAINERS: Remove Kirkwood
  ARM: tegra: Convert PMC to a driver
  soc/tegra: fuse: Set up in early initcall
  ARM: tegra: Always lock the CPU reset vector
  ARM: tegra: Setup CPU hotplug in a pure initcall
  soc/tegra: Implement runtime check for Tegra SoCs
  soc/tegra: fuse: fix dummy functions
  soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
  soc/tegra: Add efuse and apbmisc bindings
  soc/tegra: Add efuse driver for Tegra
  ARM: tegra: move fuse exports to soc/tegra/fuse.h
  ARM: tegra: export apb dma readl/writel
  ARM: tegra: Use a function to get the chip ID
  ARM: tegra: Sort includes alphabetically
  ARM: tegra: Move includes to include/soc/tegra
  ...

12 files changed, 139 insertions, 100 deletions

diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 1ee91763fa7c..f8daa9cc5617 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -111,25 +111,14 @@ IS_SAMSUNG_CPU(exynos5800, EXYNOS5800_SOC_ID, EXYNOS5_SOC_MASK)
 #define soc_is_exynos5() (soc_is_exynos5250() || soc_is_exynos5410() || \
                           soc_is_exynos5420() || soc_is_exynos5800())
 
-void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1);
-
-struct map_desc;
 extern void __iomem *sysram_ns_base_addr;
 extern void __iomem *sysram_base_addr;
-void exynos_init_io(void);
-void exynos_restart(enum reboot_mode mode, const char *cmd);
+extern void __iomem *pmu_base_addr;
 void exynos_sysram_init(void);
-void exynos_cpuidle_init(void);
-void exynos_cpufreq_init(void);
-void exynos_init_late(void);
 
 void exynos_firmware_init(void);
 
-#ifdef CONFIG_PINCTRL_EXYNOS
 extern u32 exynos_get_eint_wake_mask(void);
-#else
-static inline u32 exynos_get_eint_wake_mask(void) { return 0xffffffff; }
-#endif
 
 #ifdef CONFIG_PM_SLEEP
 extern void __init exynos_pm_init(void);
diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
index 66c9b9614f3c..3164ef2e6b6c 100644
--- a/arch/arm/mach-exynos/exynos.c
+++ b/arch/arm/mach-exynos/exynos.c
@@ -19,6 +19,7 @@
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
+#include <linux/irqchip.h>
 
 #include <asm/cacheflush.h>
 #include <asm/hardware/cache-l2x0.h>
@@ -29,6 +30,9 @@
 #include "common.h"
 #include "mfc.h"
 #include "regs-pmu.h"
+#include "regs-sys.h"
+
+void __iomem *pmu_base_addr;
 
 static struct map_desc exynos4_iodesc[] __initdata = {
         {
@@ -143,7 +147,7 @@ static struct map_desc exynos5_iodesc[] __initdata = {
         },
 };
 
-void exynos_restart(enum reboot_mode mode, const char *cmd)
+static void exynos_restart(enum reboot_mode mode, const char *cmd)
 {
         struct device_node *np;
         u32 val = 0x1;
@@ -204,7 +208,7 @@ void __init exynos_sysram_init(void)
         }
 }
 
-void __init exynos_init_late(void)
+static void __init exynos_init_late(void)
 {
         if (of_machine_is_compatible("samsung,exynos5440"))
                 /* to be supported later */
@@ -251,7 +255,7 @@ static void __init exynos_map_io(void)
                 iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc));
 }
 
-void __init exynos_init_io(void)
+static void __init exynos_init_io(void)
 {
         debug_ll_io_init();
 
@@ -263,6 +267,39 @@ void __init exynos_init_io(void)
         exynos_map_io();
 }
 
+static const struct of_device_id exynos_dt_pmu_match[] = {
+        { .compatible = "samsung,exynos3250-pmu" },
+        { .compatible = "samsung,exynos4210-pmu" },
+        { .compatible = "samsung,exynos4212-pmu" },
+        { .compatible = "samsung,exynos4412-pmu" },
+        { .compatible = "samsung,exynos5250-pmu" },
+        { .compatible = "samsung,exynos5420-pmu" },
+        { /*sentinel*/ },
+};
+
+static void exynos_map_pmu(void)
+{
+        struct device_node *np;
+
+        np = of_find_matching_node(NULL, exynos_dt_pmu_match);
+        if (np)
+                pmu_base_addr = of_iomap(np, 0);
+
+        if (!pmu_base_addr)
+                panic("failed to find exynos pmu register\n");
+}
+
+static void __init exynos_init_irq(void)
+{
+        irqchip_init();
+        /*
+         * Since platsmp.c needs pmu base address by the time
+         * DT is not unflatten so we can't use DT APIs before
+         * init_irq
+         */
+        exynos_map_pmu();
+}
+
 static void __init exynos_dt_machine_init(void)
 {
         struct device_node *i2c_np;
@@ -352,6 +389,7 @@ DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)")
         .smp            = smp_ops(exynos_smp_ops),
         .map_io         = exynos_init_io,
         .init_early     = exynos_firmware_init,
+        .init_irq       = exynos_init_irq,
         .init_machine   = exynos_dt_machine_init,
         .init_late      = exynos_init_late,
         .dt_compat      = exynos_dt_compat,
diff --git a/arch/arm/mach-exynos/headsmp.S b/arch/arm/mach-exynos/headsmp.S
index cdd9d91e9933..b54f9701e421 100644
--- a/arch/arm/mach-exynos/headsmp.S
+++ b/arch/arm/mach-exynos/headsmp.S
@@ -1,5 +1,4 @@
 /*
- *  linux/arch/arm/mach-exynos4/headsmp.S
  *
  *  Cloned from linux/arch/arm/mach-realview/headsmp.S
  *
diff --git a/arch/arm/mach-exynos/hotplug.c b/arch/arm/mach-exynos/hotplug.c
index 920a4baa53cd..4d86961a7957 100644
--- a/arch/arm/mach-exynos/hotplug.c
+++ b/arch/arm/mach-exynos/hotplug.c
@@ -1,5 +1,4 @@
-/* linux arch/arm/mach-exynos4/hotplug.c
- *
+/*
  *  Cloned from linux/arch/arm/mach-realview/hotplug.c
  *
  *  Copyright (C) 2002 ARM Ltd.
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index 548269a60634..963002fb15c3 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -1,5 +1,4 @@
-/* linux/arch/arm/mach-exynos/include/mach/map.h
- *
+/*
  * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
  *              http://www.samsung.com/
  *
diff --git a/arch/arm/mach-exynos/include/mach/memory.h b/arch/arm/mach-exynos/include/mach/memory.h
index 2a4cdb7cb326..e19df1f18c0d 100644
--- a/arch/arm/mach-exynos/include/mach/memory.h
+++ b/arch/arm/mach-exynos/include/mach/memory.h
@@ -1,5 +1,4 @@
-/* linux/arch/arm/mach-exynos4/include/mach/memory.h
- *
+/*
  * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
  *              http://www.samsung.com
  *
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 70d1e65a51d8..e5a8d764f24c 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -1,5 +1,4 @@
-/* linux/arch/arm/mach-exynos4/platsmp.c
- *
+ /*
  * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
  *              http://www.samsung.com
  *
@@ -32,6 +31,72 @@
 
 extern void exynos4_secondary_startup(void);
 
+/**
+ * exynos_core_power_down : power down the specified cpu
+ * @cpu : the cpu to power down
+ *
+ * Power down the specified cpu. The sequence must be finished by a
+ * call to cpu_do_idle()
+ *
+ */
+void exynos_cpu_power_down(int cpu)
+{
+        __raw_writel(0, EXYNOS_ARM_CORE_CONFIGURATION(cpu));
+}
+
+/**
+ * exynos_cpu_power_up : power up the specified cpu
+ * @cpu : the cpu to power up
+ *
+ * Power up the specified cpu
+ */
+void exynos_cpu_power_up(int cpu)
+{
+        __raw_writel(S5P_CORE_LOCAL_PWR_EN,
+                     EXYNOS_ARM_CORE_CONFIGURATION(cpu));
+}
+
+/**
+ * exynos_cpu_power_state : returns the power state of the cpu
+ * @cpu : the cpu to retrieve the power state from
+ *
+ */
+int exynos_cpu_power_state(int cpu)
+{
+        return (__raw_readl(EXYNOS_ARM_CORE_STATUS(cpu)) &
+                        S5P_CORE_LOCAL_PWR_EN);
+}
+
+/**
+ * exynos_cluster_power_down : power down the specified cluster
+ * @cluster : the cluster to power down
+ */
+void exynos_cluster_power_down(int cluster)
+{
+        __raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster));
+}
+
+/**
+ * exynos_cluster_power_up : power up the specified cluster
+ * @cluster : the cluster to power up
+ */
+void exynos_cluster_power_up(int cluster)
+{
+        __raw_writel(S5P_CORE_LOCAL_PWR_EN,
+                     EXYNOS_COMMON_CONFIGURATION(cluster));
+}
+
+/**
+ * exynos_cluster_power_state : returns the power state of the cluster
+ * @cluster : the cluster to retrieve the power state from
+ *
+ */
+int exynos_cluster_power_state(int cluster)
+{
+        return (__raw_readl(EXYNOS_COMMON_STATUS(cluster)) &
+                        S5P_CORE_LOCAL_PWR_EN);
+}
+
 static inline void __iomem *cpu_boot_reg_base(void)
 {
         if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_1_1)
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index 67d383de614f..6ab68a068e93 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -35,6 +35,7 @@
 
 #include "common.h"
 #include "regs-pmu.h"
+#include "regs-sys.h"
 
 /**
  * struct exynos_wkup_irq - Exynos GIC to PMU IRQ mapping
@@ -100,72 +101,6 @@ static int exynos_irq_set_wake(struct irq_data *data, unsigned int state)
         return -ENOENT;
 }
 
-/**
- * exynos_core_power_down : power down the specified cpu
- * @cpu : the cpu to power down
- *
- * Power down the specified cpu. The sequence must be finished by a
- * call to cpu_do_idle()
- *
- */
-void exynos_cpu_power_down(int cpu)
-{
-        __raw_writel(0, EXYNOS_ARM_CORE_CONFIGURATION(cpu));
-}
-
-/**
- * exynos_cpu_power_up : power up the specified cpu
- * @cpu : the cpu to power up
- *
- * Power up the specified cpu
- */
-void exynos_cpu_power_up(int cpu)
-{
-        __raw_writel(S5P_CORE_LOCAL_PWR_EN,
-                     EXYNOS_ARM_CORE_CONFIGURATION(cpu));
-}
-
-/**
- * exynos_cpu_power_state : returns the power state of the cpu
- * @cpu : the cpu to retrieve the power state from
- *
- */
-int exynos_cpu_power_state(int cpu)
-{
-        return (__raw_readl(EXYNOS_ARM_CORE_STATUS(cpu)) &
-                        S5P_CORE_LOCAL_PWR_EN);
-}
-
-/**
- * exynos_cluster_power_down : power down the specified cluster
- * @cluster : the cluster to power down
- */
-void exynos_cluster_power_down(int cluster)
-{
-        __raw_writel(0, EXYNOS_COMMON_CONFIGURATION(cluster));
-}
-
-/**
- * exynos_cluster_power_up : power up the specified cluster
- * @cluster : the cluster to power up
- */
-void exynos_cluster_power_up(int cluster)
-{
-        __raw_writel(S5P_CORE_LOCAL_PWR_EN,
-                     EXYNOS_COMMON_CONFIGURATION(cluster));
-}
-
-/**
- * exynos_cluster_power_state : returns the power state of the cluster
- * @cluster : the cluster to retrieve the power state from
- *
- */
-int exynos_cluster_power_state(int cluster)
-{
-        return (__raw_readl(EXYNOS_COMMON_STATUS(cluster)) &
-                        S5P_CORE_LOCAL_PWR_EN);
-}
-
 #define EXYNOS_BOOT_VECTOR_ADDR (samsung_rev() == EXYNOS4210_REV_1_1 ? \
                         S5P_INFORM7 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \
                         (sysram_base_addr + 0x24) : S5P_INFORM0))
diff --git a/arch/arm/mach-exynos/pm_domains.c b/arch/arm/mach-exynos/pm_domains.c
index 797cb134bfff..fd76e1b5a471 100644
--- a/arch/arm/mach-exynos/pm_domains.c
+++ b/arch/arm/mach-exynos/pm_domains.c
@@ -23,8 +23,7 @@
 #include <linux/of_platform.h>
 #include <linux/sched.h>
 
-#include "regs-pmu.h"
-
+#define INT_LOCAL_PWR_EN        0x7
 #define MAX_CLK_PER_DOMAIN      4
 
 /*
@@ -63,13 +62,13 @@ static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on)
                 }
         }
 
-        pwr = power_on ? S5P_INT_LOCAL_PWR_EN : 0;
+        pwr = power_on ? INT_LOCAL_PWR_EN : 0;
         __raw_writel(pwr, base);
 
         /* Wait max 1ms */
         timeout = 10;
 
-        while ((__raw_readl(base + 0x4) & S5P_INT_LOCAL_PWR_EN) != pwr) {
+        while ((__raw_readl(base + 0x4) & INT_LOCAL_PWR_EN) != pwr) {
                 if (!timeout) {
                         op = (power_on) ? "enable" : "disable";
                         pr_err("Power domain %s %s failed\n", domain->name, op);
@@ -231,7 +230,7 @@ static __init int exynos4_pm_init_power_domain(void)
 no_clk:
                 platform_set_drvdata(pdev, pd);
 
-                on = __raw_readl(pd->base + 0x4) & S5P_INT_LOCAL_PWR_EN;
+                on = __raw_readl(pd->base + 0x4) & INT_LOCAL_PWR_EN;
 
                 pm_genpd_init(&pd->pd, NULL, !on);
         }
diff --git a/arch/arm/mach-exynos/pmu.c b/arch/arm/mach-exynos/pmu.c
index fb0deda3b3a4..dcfcb44c3c55 100644
--- a/arch/arm/mach-exynos/pmu.c
+++ b/arch/arm/mach-exynos/pmu.c
@@ -11,7 +11,6 @@
 
 #include <linux/io.h>
 #include <linux/kernel.h>
-#include <linux/bug.h>
 
 #include "common.h"
 #include "regs-pmu.h"
diff --git a/arch/arm/mach-exynos/regs-pmu.h b/arch/arm/mach-exynos/regs-pmu.h
index 1d13b08708f0..1993e6bd5388 100644
--- a/arch/arm/mach-exynos/regs-pmu.h
+++ b/arch/arm/mach-exynos/regs-pmu.h
@@ -15,7 +15,6 @@
 #include <mach/map.h>
 
 #define S5P_PMUREG(x)                           (S5P_VA_PMU + (x))
-#define S5P_SYSREG(x)                           (S3C_VA_SYS + (x))
 
 #define S5P_CENTRAL_SEQ_CONFIGURATION           S5P_PMUREG(0x0200)
 
@@ -127,7 +126,6 @@
 #define S5P_PAD_RET_EBIB_OPTION                 S5P_PMUREG(0x31A8)
 
 #define S5P_CORE_LOCAL_PWR_EN                   0x3
-#define S5P_INT_LOCAL_PWR_EN                    0x7
 
 /* Only for EXYNOS4210 */
 #define S5P_CMU_CLKSTOP_LCD1_LOWPWR     S5P_PMUREG(0x1154)
@@ -188,8 +186,6 @@
 
 /* For EXYNOS5 */
 
-#define EXYNOS5_SYS_I2C_CFG                                     S5P_SYSREG(0x0234)
-
 #define EXYNOS5_AUTO_WDTRESET_DISABLE                           S5P_PMUREG(0x0408)
 #define EXYNOS5_MASK_WDTRESET_REQUEST                           S5P_PMUREG(0x040C)
 
diff --git a/arch/arm/mach-exynos/regs-sys.h b/arch/arm/mach-exynos/regs-sys.h
new file mode 100644
index 000000000000..84332b0dd7a6
--- /dev/null
+++ b/arch/arm/mach-exynos/regs-sys.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com
+ *
+ * EXYNOS - system register definition
+ *
+ * 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 __ASM_ARCH_REGS_SYS_H
+#define __ASM_ARCH_REGS_SYS_H __FILE__
+
+#include <mach/map.h>
+
+#define S5P_SYSREG(x)                          (S3C_VA_SYS + (x))
+
+/* For EXYNOS5 */
+#define EXYNOS5_SYS_I2C_CFG                    S5P_SYSREG(0x0234)
+
+#endif /* __ASM_ARCH_REGS_SYS_H */