40 files changed, 220 insertions, 195 deletions

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index ecfcdba2d17c..9b31f4311ea2 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -495,6 +495,7 @@ config DEBUG_IMX_UART_PORT
                                                 DEBUG_IMX53_UART || \
                                                 DEBUG_IMX6Q_UART
         default 1
+        depends on ARCH_MXC
         help
           Choose UART port on which kernel low-level debug messages
           should be output.
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 48d00a099ce3..3d3f64d2111a 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -385,7 +385,7 @@
 
         spi@7000d800 {
                 compatible = "nvidia,tegra20-slink";
-                reg = <0x7000d480 0x200>;
+                reg = <0x7000d800 0x200>;
                 interrupts = <0 83 0x04>;
                 nvidia,dma-request-selector = <&apbdma 17>;
                 #address-cells = <1>;
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 9d87a3ffe998..dbf46c272562 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -372,7 +372,7 @@
 
         spi@7000d800 {
                 compatible = "nvidia,tegra30-slink", "nvidia,tegra20-slink";
-                reg = <0x7000d480 0x200>;
+                reg = <0x7000d800 0x200>;
                 interrupts = <0 83 0x04>;
                 nvidia,dma-request-selector = <&apbdma 17>;
                 #address-cells = <1>;
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 0f82098c9bfe..cd22d821bf74 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -562,21 +562,21 @@ ENDPROC(__und_usr)
         @ Fall-through from Thumb-2 __und_usr
         @
 #ifdef CONFIG_NEON
+        get_thread_info r10                     @ get current thread
         adr     r6, .LCneon_thumb_opcodes
         b       2f
 #endif
 call_fpe:
+        get_thread_info r10                     @ get current thread
 #ifdef CONFIG_NEON
         adr     r6, .LCneon_arm_opcodes
-2:
-        ldr     r7, [r6], #4                    @ mask value
-        cmp     r7, #0                          @ end mask?
-        beq     1f
-        and     r8, r0, r7
+2:      ldr     r5, [r6], #4                    @ mask value
         ldr     r7, [r6], #4                    @ opcode bits matching in mask
+        cmp     r5, #0                          @ end mask?
+        beq     1f
+        and     r8, r0, r5
         cmp     r8, r7                          @ NEON instruction?
         bne     2b
-        get_thread_info r10
         mov     r7, #1
         strb    r7, [r10, #TI_USED_CP + 10]     @ mark CP#10 as used
         strb    r7, [r10, #TI_USED_CP + 11]     @ mark CP#11 as used
@@ -586,7 +586,6 @@ call_fpe:
         tst     r0, #0x08000000                 @ only CDP/CPRT/LDC/STC have bit 27
         tstne   r0, #0x04000000                 @ bit 26 set on both ARM and Thumb-2
         moveq   pc, lr
-        get_thread_info r10                     @ get current thread
         and     r8, r0, #0x00000f00             @ mask out CP number
  THUMB( lsr     r8, r8, #8              )
         mov     r7, #1
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 047d3e40e470..cbd0f51937cc 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -459,15 +459,16 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
  * atomic helpers and the signal restart code. Insert it into the
  * gate_vma so that it is visible through ptrace and /proc/<pid>/mem.
  */
-static struct vm_area_struct gate_vma;
+static struct vm_area_struct gate_vma = {
+        .vm_start       = 0xffff0000,
+        .vm_end         = 0xffff0000 + PAGE_SIZE,
+        .vm_flags       = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC,
+        .vm_mm          = &init_mm,
+};
 
 static int __init gate_vma_init(void)
 {
-        gate_vma.vm_start       = 0xffff0000;
-        gate_vma.vm_end         = 0xffff0000 + PAGE_SIZE;
-        gate_vma.vm_page_prot   = PAGE_READONLY_EXEC;
-        gate_vma.vm_flags       = VM_READ | VM_EXEC |
-                                  VM_MAYREAD | VM_MAYEXEC;
+        gate_vma.vm_page_prot = PAGE_READONLY_EXEC;
         return 0;
 }
 arch_initcall(gate_vma_init);
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index ea961445e0e9..b23c8e4f28e8 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -536,16 +536,14 @@ static void __init ap_init_of(void)
                                            'A' + (ap_sc_id & 0x0f));
 
         soc_dev = soc_device_register(soc_dev_attr);
-        if (IS_ERR_OR_NULL(soc_dev)) {
+        if (IS_ERR(soc_dev)) {
                 kfree(soc_dev_attr->revision);
                 kfree(soc_dev_attr);
                 return;
         }
 
         parent = soc_device_to_device(soc_dev);
-
-        if (!IS_ERR_OR_NULL(parent))
-                integrator_init_sysfs(parent, ap_sc_id);
+        integrator_init_sysfs(parent, ap_sc_id);
 
         of_platform_populate(root, of_default_bus_match_table,
                         ap_auxdata_lookup, parent);
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 2b0db82a5381..da1091be0887 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -360,17 +360,14 @@ static void __init intcp_init_of(void)
                                            'A' + (intcp_sc_id & 0x0f));
 
         soc_dev = soc_device_register(soc_dev_attr);
-        if (IS_ERR_OR_NULL(soc_dev)) {
+        if (IS_ERR(soc_dev)) {
                 kfree(soc_dev_attr->revision);
                 kfree(soc_dev_attr);
                 return;
         }
 
         parent = soc_device_to_device(soc_dev);
-
-        if (!IS_ERR_OR_NULL(parent))
-                integrator_init_sysfs(parent, intcp_sc_id);
-
+        integrator_init_sysfs(parent, intcp_sc_id);
         of_platform_populate(root, of_default_bus_match_table,
                         intcp_auxdata_lookup, parent);
 }
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 3218f1f2c0e0..e7b781d3788f 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -41,8 +41,6 @@ static struct fb_videomode mx23evk_video_modes[] = {
                 .lower_margin   = 4,
                 .hsync_len      = 1,
                 .vsync_len      = 1,
-                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT |
-                                  FB_SYNC_DOTCLK_FAILING_ACT,
         },
 };
 
@@ -59,8 +57,6 @@ static struct fb_videomode mx28evk_video_modes[] = {
                 .lower_margin   = 10,
                 .hsync_len      = 10,
                 .vsync_len      = 10,
-                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT |
-                                  FB_SYNC_DOTCLK_FAILING_ACT,
         },
 };
 
@@ -77,7 +73,6 @@ static struct fb_videomode m28evk_video_modes[] = {
                 .lower_margin   = 45,
                 .hsync_len      = 1,
                 .vsync_len      = 1,
-                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT,
         },
 };
 
@@ -94,9 +89,7 @@ static struct fb_videomode apx4devkit_video_modes[] = {
                 .lower_margin   = 13,
                 .hsync_len      = 48,
                 .vsync_len      = 3,
-                .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT |
-                                  FB_SYNC_DATA_ENABLE_HIGH_ACT |
-                                  FB_SYNC_DOTCLK_FAILING_ACT,
+                .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
         },
 };
 
@@ -113,9 +106,7 @@ static struct fb_videomode apf28dev_video_modes[] = {
                 .lower_margin = 0x15,
                 .hsync_len = 64,
                 .vsync_len = 4,
-                .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT |
-                                FB_SYNC_DATA_ENABLE_HIGH_ACT |
-                                FB_SYNC_DOTCLK_FAILING_ACT,
+                .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
         },
 };
 
@@ -132,7 +123,6 @@ static struct fb_videomode cfa10049_video_modes[] = {
                 .lower_margin   = 2,
                 .hsync_len      = 15,
                 .vsync_len      = 15,
-                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT
         },
 };
 
@@ -259,6 +249,8 @@ static void __init imx23_evk_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(mx23evk_video_modes);
         mxsfb_pdata.default_bpp = 32;
         mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                MXSFB_SYNC_DOTCLK_FAILING_ACT;
 }
 
 static inline void enable_clk_enet_out(void)
@@ -278,6 +270,8 @@ static void __init imx28_evk_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(mx28evk_video_modes);
         mxsfb_pdata.default_bpp = 32;
         mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                MXSFB_SYNC_DOTCLK_FAILING_ACT;
 
         mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
 }
@@ -297,6 +291,7 @@ static void __init m28evk_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(m28evk_video_modes);
         mxsfb_pdata.default_bpp = 16;
         mxsfb_pdata.ld_intf_width = STMLCDIF_18BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT;
 }
 
 static void __init sc_sps1_init(void)
@@ -322,6 +317,8 @@ static void __init apx4devkit_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(apx4devkit_video_modes);
         mxsfb_pdata.default_bpp = 32;
         mxsfb_pdata.ld_intf_width = STMLCDIF_24BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                MXSFB_SYNC_DOTCLK_FAILING_ACT;
 }
 
 #define ENET0_MDC__GPIO_4_0     MXS_GPIO_NR(4, 0)
@@ -407,6 +404,7 @@ static void __init cfa10049_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(cfa10049_video_modes);
         mxsfb_pdata.default_bpp = 32;
         mxsfb_pdata.ld_intf_width = STMLCDIF_18BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT;
 }
 
 static void __init cfa10037_init(void)
@@ -423,6 +421,8 @@ static void __init apf28_init(void)
         mxsfb_pdata.mode_count = ARRAY_SIZE(apf28dev_video_modes);
         mxsfb_pdata.default_bpp = 16;
         mxsfb_pdata.ld_intf_width = STMLCDIF_16BIT;
+        mxsfb_pdata.sync = MXSFB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                MXSFB_SYNC_DOTCLK_FAILING_ACT;
 }
 
 static void __init mxs_machine_init(void)
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
index 903da8eb886c..cdd05f2e67ee 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -55,12 +55,6 @@ config MACH_OMAP_H3
           TI OMAP 1710 H3 board support. Say Y here if you have such
           a board.
 
-config MACH_OMAP_HTCWIZARD
-        bool "HTC Wizard"
-        depends on ARCH_OMAP850
-        help
-          HTC Wizard smartphone support (AKA QTEK 9100, ...)
-
 config MACH_HERALD
         bool "HTC Herald"
         depends on ARCH_OMAP850
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 8111cd9ff3e5..b9c0ed3f648c 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -408,7 +408,7 @@ config OMAP3_SDRC_AC_TIMING
 
 config OMAP4_ERRATA_I688
         bool "OMAP4 errata: Async Bridge Corruption"
-        depends on ARCH_OMAP4 && !ARCH_MULTIPLATFORM
+        depends on (ARCH_OMAP4 || SOC_OMAP5) && !ARCH_MULTIPLATFORM
         select ARCH_HAS_BARRIERS
         help
           If a data is stalled inside asynchronous bridge because of back
diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c
index a3e0aaa4886b..cb0596b631cf 100644
--- a/arch/arm/mach-omap2/board-2430sdp.c
+++ b/arch/arm/mach-omap2/board-2430sdp.c
@@ -166,7 +166,7 @@ static void __init sdp2430_display_init(void)
         omap_display_init(&sdp2430_dss_data);
 }
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 
 static struct omap_smc91x_platform_data board_smc91x_data = {
         .cs             = 5,
diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c
index 6920f6cfc97c..4eb5e6f2f7f5 100644
--- a/arch/arm/mach-omap2/board-cm-t3517.c
+++ b/arch/arm/mach-omap2/board-cm-t3517.c
@@ -332,6 +332,6 @@ MACHINE_START(CM_T3517, "Compulab CM-T3517")
         .handle_irq     = omap3_intc_handle_irq,
         .init_machine   = cm_t3517_init,
         .init_late      = am35xx_init_late,
-        .init_time      = omap3_gp_gptimer_timer_init,
+        .init_time      = omap3_gptimer_timer_init,
         .restart        = omap3xxx_restart,
 MACHINE_END
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index e54a48060198..78813b397209 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -140,7 +140,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
         .init_irq       = omap_intc_of_init,
         .handle_irq     = omap3_intc_handle_irq,
         .init_machine   = omap_generic_init,
-        .init_time      = omap3_am33xx_gptimer_timer_init,
+        .init_time      = omap3_gptimer_timer_init,
         .dt_compat      = am33xx_boards_compat,
         .restart        = am33xx_restart,
 MACHINE_END
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index 812c829fa46f..5b4ec51c385f 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -246,7 +246,7 @@ static u32 is_gpmc_muxed(void)
                 return 0;
 }
 
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91x_MODULE)
+#if IS_ENABLED(CONFIG_SMC91X)
 
 static struct omap_smc91x_platform_data board_smc91x_data = {
         .cs             = 1,
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 5382215a49bc..6955a428f534 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -489,7 +489,7 @@ static int __init beagle_opp_init(void)
 
         /* Initialize the omap3 opp table if not already created. */
         r = omap3_opp_init();
-        if (IS_ERR_VALUE(r) && (r != -EEXIST)) {
+        if (r < 0 && (r != -EEXIST)) {
                 pr_err("%s: opp default init failed\n", __func__);
                 return r;
         }
diff --git a/arch/arm/mach-omap2/cclock33xx_data.c b/arch/arm/mach-omap2/cclock33xx_data.c
index 476b82066cb6..7f091c85384e 100644
--- a/arch/arm/mach-omap2/cclock33xx_data.c
+++ b/arch/arm/mach-omap2/cclock33xx_data.c
@@ -958,6 +958,14 @@ int __init am33xx_clk_init(void)
 
         clk_set_parent(&timer3_fck, &sys_clkin_ck);
         clk_set_parent(&timer6_fck, &sys_clkin_ck);
+        /*
+         * The On-Chip 32K RC Osc clock is not an accurate clock-source as per
+         * the design/spec, so as a result, for example, timer which supposed
+         * to get expired @60Sec, but will expire somewhere ~@40Sec, which is
+         * not expected by any use-case, so change WDT1 clock source to PRCM
+         * 32KHz clock.
+         */
+        clk_set_parent(&wdt1_fck, &clkdiv32k_ick);
 
         return 0;
 }
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index e4ec3a69ee2e..2191f25ad21b 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -596,7 +596,7 @@ int __init omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name)
                 return -ENOENT;
 
         r = clk_set_rate(mpurate_ck, mpurate);
-        if (IS_ERR_VALUE(r)) {
+        if (r < 0) {
                 WARN(1, "clock: %s: unable to set MPU rate to %d: %d\n",
                      mpurate_ck_name, mpurate, r);
                 clk_put(mpurate_ck);
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 40f4a03d728f..bf70e2b57ff8 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -82,8 +82,7 @@ extern void omap2_init_common_infrastructure(void);
 extern void omap2_sync32k_timer_init(void);
 extern void omap3_sync32k_timer_init(void);
 extern void omap3_secure_sync32k_timer_init(void);
-extern void omap3_gp_gptimer_timer_init(void);
-extern void omap3_am33xx_gptimer_timer_init(void);
+extern void omap3_gptimer_timer_init(void);
 extern void omap4_local_timer_init(void);
 extern void omap5_realtime_timer_init(void);
 
diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c
index 3aed4b0b9563..3a0296cfcace 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/arch/arm/mach-omap2/dpll3xxx.c
@@ -307,10 +307,10 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel)
         _omap3_noncore_dpll_bypass(clk);
 
         /*
-         * Set jitter correction. No jitter correction for OMAP4 and 3630
-         * since freqsel field is no longer present
+         * Set jitter correction. Jitter correction applicable for OMAP343X
+         * only since freqsel field is no longer present on other devices.
          */
-        if (!soc_is_am33xx() && !cpu_is_omap44xx() && !cpu_is_omap3630()) {
+        if (cpu_is_omap343x()) {
                 v = __raw_readl(dd->control_reg);
                 v &= ~dd->freqsel_mask;
                 v |= freqsel << __ffs(dd->freqsel_mask);
@@ -480,29 +480,30 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
         if (!dd)
                 return -EINVAL;
 
-        __clk_prepare(dd->clk_bypass);
-        clk_enable(dd->clk_bypass);
-        __clk_prepare(dd->clk_ref);
-        clk_enable(dd->clk_ref);
-
         if (__clk_get_rate(dd->clk_bypass) == rate &&
             (dd->modes & (1 << DPLL_LOW_POWER_BYPASS))) {
                 pr_debug("%s: %s: set rate: entering bypass.\n",
                          __func__, __clk_get_name(hw->clk));
 
+                __clk_prepare(dd->clk_bypass);
+                clk_enable(dd->clk_bypass);
                 ret = _omap3_noncore_dpll_bypass(clk);
                 if (!ret)
                         new_parent = dd->clk_bypass;
+                clk_disable(dd->clk_bypass);
+                __clk_unprepare(dd->clk_bypass);
         } else {
+                __clk_prepare(dd->clk_ref);
+                clk_enable(dd->clk_ref);
+
                 if (dd->last_rounded_rate != rate)
                         rate = __clk_round_rate(hw->clk, rate);
 
                 if (dd->last_rounded_rate == 0)
                         return -EINVAL;
 
-                /* No freqsel on AM335x, OMAP4 and OMAP3630 */
-                if (!soc_is_am33xx() && !cpu_is_omap44xx() &&
-                    !cpu_is_omap3630()) {
+                /* Freqsel is available only on OMAP343X devices */
+                if (cpu_is_omap343x()) {
                         freqsel = _omap3_dpll_compute_freqsel(clk,
                                                 dd->last_rounded_n);
                         WARN_ON(!freqsel);
@@ -514,6 +515,8 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
                 ret = omap3_noncore_dpll_program(clk, freqsel);
                 if (!ret)
                         new_parent = dd->clk_ref;
+                clk_disable(dd->clk_ref);
+                __clk_unprepare(dd->clk_ref);
         }
         /*
         * FIXME - this is all wrong.  common code handles reparenting and
@@ -525,11 +528,6 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
         if (!ret)
                 __clk_reparent(hw->clk, new_parent);
 
-        clk_disable(dd->clk_ref);
-        __clk_unprepare(dd->clk_ref);
-        clk_disable(dd->clk_bypass);
-        __clk_unprepare(dd->clk_bypass);
-
         return 0;
 }
 
diff --git a/arch/arm/mach-omap2/dsp.c b/arch/arm/mach-omap2/dsp.c
index b155500e84a8..b8208b4b1bd9 100644
--- a/arch/arm/mach-omap2/dsp.c
+++ b/arch/arm/mach-omap2/dsp.c
@@ -26,7 +26,7 @@
 #include "control.h"
 #include "cm2xxx_3xxx.h"
 #include "prm2xxx_3xxx.h"
-#ifdef CONFIG_BRIDGE_DVFS
+#ifdef CONFIG_TIDSPBRIDGE_DVFS
 #include "omap-pm.h"
 #endif
 
@@ -35,7 +35,7 @@
 static struct platform_device *omap_dsp_pdev;
 
 static struct omap_dsp_platform_data omap_dsp_pdata __initdata = {
-#ifdef CONFIG_BRIDGE_DVFS
+#ifdef CONFIG_TIDSPBRIDGE_DVFS
         .dsp_set_min_opp = omap_pm_dsp_set_min_opp,
         .dsp_get_opp = omap_pm_dsp_get_opp,
         .cpu_set_freq = omap_pm_cpu_set_freq,
diff --git a/arch/arm/mach-omap2/gpmc-onenand.c b/arch/arm/mach-omap2/gpmc-onenand.c
index fadd87435cd0..0d75889c0a6f 100644
--- a/arch/arm/mach-omap2/gpmc-onenand.c
+++ b/arch/arm/mach-omap2/gpmc-onenand.c
@@ -303,7 +303,7 @@ static int omap2_onenand_setup_async(void __iomem *onenand_base)
         t = omap2_onenand_calc_async_timings();
 
         ret = gpmc_set_async_mode(gpmc_onenand_data->cs, &t);
-        if (IS_ERR_VALUE(ret))
+        if (ret < 0)
                 return ret;
 
         omap2_onenand_set_async_mode(onenand_base);
@@ -325,7 +325,7 @@ static int omap2_onenand_setup_sync(void __iomem *onenand_base, int *freq_ptr)
         t = omap2_onenand_calc_sync_timings(gpmc_onenand_data, freq);
 
         ret = gpmc_set_sync_mode(gpmc_onenand_data->cs, &t);
-        if (IS_ERR_VALUE(ret))
+        if (ret < 0)
                 return ret;
 
         set_onenand_cfg(onenand_base);
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 410e1bac7815..6de31739b45c 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -716,7 +716,7 @@ static int gpmc_setup_irq(void)
                 return -EINVAL;
 
         gpmc_irq_start = irq_alloc_descs(-1, 0, GPMC_NR_IRQ, 0);
-        if (IS_ERR_VALUE(gpmc_irq_start)) {
+        if (gpmc_irq_start < 0) {
                 pr_err("irq_alloc_descs failed\n");
                 return gpmc_irq_start;
         }
@@ -801,7 +801,7 @@ static int gpmc_mem_init(void)
                         continue;
                 gpmc_cs_get_memconf(cs, &base, &size);
                 rc = gpmc_cs_insert_mem(cs, base, size);
-                if (IS_ERR_VALUE(rc)) {
+                if (rc < 0) {
                         while (--cs >= 0)
                                 if (gpmc_cs_mem_enabled(cs))
                                         gpmc_cs_delete_mem(cs);
@@ -1370,14 +1370,14 @@ static int gpmc_probe(struct platform_device *pdev)
                  GPMC_REVISION_MINOR(l));
 
         rc = gpmc_mem_init();
-        if (IS_ERR_VALUE(rc)) {
+        if (rc < 0) {
                 clk_disable_unprepare(gpmc_l3_clk);
                 clk_put(gpmc_l3_clk);
                 dev_err(gpmc_dev, "failed to reserve memory\n");
                 return rc;
         }
 
-        if (IS_ERR_VALUE(gpmc_setup_irq()))
+        if (gpmc_setup_irq() < 0)
                 dev_warn(gpmc_dev, "gpmc_setup_irq failed\n");
 
         /* Now the GPMC is initialised, unreserve the chip-selects */
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 8a68f1ec66b9..ff0bc9e51aa7 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -529,22 +529,28 @@ void __init omap5xxx_check_revision(void)
         case 0xb942:
                 switch (rev) {
                 case 0:
-                default:
                         omap_revision = OMAP5430_REV_ES1_0;
+                        break;
+                case 1:
+                default:
+                        omap_revision = OMAP5430_REV_ES2_0;
                 }
                 break;
 
         case 0xb998:
                 switch (rev) {
                 case 0:
-                default:
                         omap_revision = OMAP5432_REV_ES1_0;
+                        break;
+                case 1:
+                default:
+                        omap_revision = OMAP5432_REV_ES2_0;
                 }
                 break;
 
         default:
                 /* Unknown default to latest silicon rev as default*/
-                omap_revision = OMAP5430_REV_ES1_0;
+                omap_revision = OMAP5430_REV_ES2_0;
         }
 
         pr_info("OMAP%04x ES%d.0\n",
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 2c3fdd65387b..2bef5a7e6af8 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -271,6 +271,14 @@ static struct map_desc omap54xx_io_desc[] __initdata = {
                 .length         = L4_PER_54XX_SIZE,
                 .type           = MT_DEVICE,
         },
+#ifdef CONFIG_OMAP4_ERRATA_I688
+        {
+                .virtual        = OMAP4_SRAM_VA,
+                .pfn            = __phys_to_pfn(OMAP4_SRAM_PA),
+                .length         = PAGE_SIZE,
+                .type           = MT_MEMORY_SO,
+        },
+#endif
 };
 #endif
 
@@ -323,6 +331,7 @@ void __init omap4_map_io(void)
 void __init omap5_map_io(void)
 {
         iotable_init(omap54xx_io_desc, ARRAY_SIZE(omap54xx_io_desc));
+        omap_barriers_init();
 }
 #endif
 /*
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 708bb115a27f..2aeb928efdfd 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -240,15 +240,21 @@ void __iomem *omap4_get_sar_ram_base(void)
  */
 static int __init omap4_sar_ram_init(void)
 {
+        unsigned long sar_base;
+
         /*
          * To avoid code running on other OMAPs in
          * multi-omap builds
          */
-        if (!cpu_is_omap44xx())
+        if (cpu_is_omap44xx())
+                sar_base = OMAP44XX_SAR_RAM_BASE;
+        else if (soc_is_omap54xx())
+                sar_base = OMAP54XX_SAR_RAM_BASE;
+        else
                 return -ENOMEM;
 
         /* Static mapping, never released */
-        sar_ram_base = ioremap(OMAP44XX_SAR_RAM_BASE, SZ_16K);
+        sar_ram_base = ioremap(sar_base, SZ_16K);
         if (WARN_ON(!sar_ram_base))
                 return -ENOMEM;
 
diff --git a/arch/arm/mach-omap2/omap4-sar-layout.h b/arch/arm/mach-omap2/omap4-sar-layout.h
index e170fe803b04..937417523b8e 100644
--- a/arch/arm/mach-omap2/omap4-sar-layout.h
+++ b/arch/arm/mach-omap2/omap4-sar-layout.h
@@ -48,13 +48,13 @@
 #define SAR_BACKUP_STATUS_WAKEUPGEN             0x10
 
 /* WakeUpGen save restore offset from OMAP54XX_SAR_RAM_BASE */
-#define OMAP5_WAKEUPGENENB_OFFSET_CPU0          (SAR_BANK3_OFFSET + 0x8d4)
-#define OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU0   (SAR_BANK3_OFFSET + 0x8e8)
-#define OMAP5_WAKEUPGENENB_OFFSET_CPU1          (SAR_BANK3_OFFSET + 0x8fc)
-#define OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU1   (SAR_BANK3_OFFSET + 0x910)
-#define OMAP5_AUXCOREBOOT0_OFFSET               (SAR_BANK3_OFFSET + 0x924)
-#define OMAP5_AUXCOREBOOT1_OFFSET               (SAR_BANK3_OFFSET + 0x928)
-#define OMAP5_AMBA_IF_MODE_OFFSET               (SAR_BANK3_OFFSET + 0x92c)
+#define OMAP5_WAKEUPGENENB_OFFSET_CPU0          (SAR_BANK3_OFFSET + 0x9dc)
+#define OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU0   (SAR_BANK3_OFFSET + 0x9f0)
+#define OMAP5_WAKEUPGENENB_OFFSET_CPU1          (SAR_BANK3_OFFSET + 0xa04)
+#define OMAP5_WAKEUPGENENB_SECURE_OFFSET_CPU1   (SAR_BANK3_OFFSET + 0xa18)
+#define OMAP5_AUXCOREBOOT0_OFFSET               (SAR_BANK3_OFFSET + 0xa2c)
+#define OMAP5_AUXCOREBOOT1_OFFSET               (SAR_BANK3_OFFSET + 0x930)
+#define OMAP5_AMBA_IF_MODE_OFFSET               (SAR_BANK3_OFFSET + 0xa34)
 #define OMAP5_SAR_BACKUP_STATUS_OFFSET          (SAR_BANK3_OFFSET + 0x800)
 
 #endif
diff --git a/arch/arm/mach-omap2/omap54xx.h b/arch/arm/mach-omap2/omap54xx.h
index a2582bb3cab3..a086ba15868b 100644
--- a/arch/arm/mach-omap2/omap54xx.h
+++ b/arch/arm/mach-omap2/omap54xx.h
@@ -28,5 +28,6 @@
 #define OMAP54XX_PRCM_MPU_BASE          0x48243000
 #define OMAP54XX_SCM_BASE               0x4a002000
 #define OMAP54XX_CTRL_BASE              0x4a002800
+#define OMAP54XX_SAR_RAM_BASE           0x4ae26000
 
 #endif /* __ASM_SOC_OMAP555554XX_H */
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index 381be7ac0c17..eeea4fa28fbc 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -131,7 +131,7 @@ static int omap_device_build_from_dt(struct platform_device *pdev)
         int oh_cnt, i, ret = 0;
 
         oh_cnt = of_property_count_strings(node, "ti,hwmods");
-        if (!oh_cnt || IS_ERR_VALUE(oh_cnt)) {
+        if (oh_cnt <= 0) {
                 dev_dbg(&pdev->dev, "No 'hwmods' to build omap_device\n");
                 return -ENODEV;
         }
@@ -815,20 +815,17 @@ struct device *omap_device_get_by_hwmod_name(const char *oh_name)
         }
 
         oh = omap_hwmod_lookup(oh_name);
-        if (IS_ERR_OR_NULL(oh)) {
+        if (!oh) {
                 WARN(1, "%s: no hwmod for %s\n", __func__,
                         oh_name);
-                return ERR_PTR(oh ? PTR_ERR(oh) : -ENODEV);
+                return ERR_PTR(-ENODEV);
         }
-        if (IS_ERR_OR_NULL(oh->od)) {
+        if (!oh->od) {
                 WARN(1, "%s: no omap_device for %s\n", __func__,
                         oh_name);
-                return ERR_PTR(oh->od ? PTR_ERR(oh->od) : -ENODEV);
+                return ERR_PTR(-ENODEV);
         }
 
-        if (IS_ERR_OR_NULL(oh->od->pdev))
-                return ERR_PTR(oh->od->pdev ? PTR_ERR(oh->od->pdev) : -ENODEV);
-
         return &oh->od->pdev->dev;
 }
 
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index c2c798c08c2b..2520d46c8508 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -610,8 +610,6 @@ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v)
 
         /* XXX test pwrdm_get_wken for this hwmod's subsystem */
 
-        oh->_int_flags |= _HWMOD_WAKEUP_ENABLED;
-
         return 0;
 }
 
@@ -645,8 +643,6 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v)
 
         /* XXX test pwrdm_get_wken for this hwmod's subsystem */
 
-        oh->_int_flags &= ~_HWMOD_WAKEUP_ENABLED;
-
         return 0;
 }
 
@@ -1663,7 +1659,7 @@ static int _deassert_hardreset(struct omap_hwmod *oh, const char *name)
                 return -ENOSYS;
 
         ret = _lookup_hardreset(oh, name, &ohri);
-        if (IS_ERR_VALUE(ret))
+        if (ret < 0)
                 return ret;
 
         if (oh->clkdm) {
@@ -2413,7 +2409,7 @@ static int __init _init(struct omap_hwmod *oh, void *data)
         _init_mpu_rt_base(oh, NULL);
 
         r = _init_clocks(oh, NULL);
-        if (IS_ERR_VALUE(r)) {
+        if (r < 0) {
                 WARN(1, "omap_hwmod: %s: couldn't init clocks\n", oh->name);
                 return -EINVAL;
         }
diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index d43d9b608eda..28f4dea0512e 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -477,15 +477,13 @@ struct omap_hwmod_omap4_prcm {
  * These are for internal use only and are managed by the omap_hwmod code.
  *
  * _HWMOD_NO_MPU_PORT: no path exists for the MPU to write to this module
- * _HWMOD_WAKEUP_ENABLED: set when the omap_hwmod code has enabled ENAWAKEUP
  * _HWMOD_SYSCONFIG_LOADED: set when the OCP_SYSCONFIG value has been cached
  * _HWMOD_SKIP_ENABLE: set if hwmod enabled during init (HWMOD_INIT_NO_IDLE) -
  *     causes the first call to _enable() to only update the pinmux
  */
 #define _HWMOD_NO_MPU_PORT                      (1 << 0)
-#define _HWMOD_WAKEUP_ENABLED                   (1 << 1)
-#define _HWMOD_SYSCONFIG_LOADED                 (1 << 2)
-#define _HWMOD_SKIP_ENABLE                      (1 << 3)
+#define _HWMOD_SYSCONFIG_LOADED                 (1 << 1)
+#define _HWMOD_SKIP_ENABLE                      (1 << 2)
 
 /*
  * omap_hwmod._state definitions
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index 26eee4a556ad..31bea1ce3de1 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -28,6 +28,7 @@
 #include "prm-regbits-33xx.h"
 #include "i2c.h"
 #include "mmc.h"
+#include "wd_timer.h"
 
 /*
  * IP blocks
@@ -2087,8 +2088,21 @@ static struct omap_hwmod am33xx_uart6_hwmod = {
 };
 
 /* 'wd_timer' class */
+static struct omap_hwmod_class_sysconfig wdt_sysc = {
+        .rev_offs       = 0x0,
+        .sysc_offs      = 0x10,
+        .syss_offs      = 0x14,
+        .sysc_flags     = (SYSC_HAS_EMUFREE | SYSC_HAS_SIDLEMODE |
+                        SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+        .idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+                        SIDLE_SMART_WKUP),
+        .sysc_fields    = &omap_hwmod_sysc_type1,
+};
+
 static struct omap_hwmod_class am33xx_wd_timer_hwmod_class = {
         .name           = "wd_timer",
+        .sysc           = &wdt_sysc,
+        .pre_shutdown   = &omap2_wd_timer_disable,
 };
 
 /*
@@ -2099,6 +2113,7 @@ static struct omap_hwmod am33xx_wd_timer1_hwmod = {
         .name           = "wd_timer2",
         .class          = &am33xx_wd_timer_hwmod_class,
         .clkdm_name     = "l4_wkup_clkdm",
+        .flags          = HWMOD_SWSUP_SIDLE,
         .main_clk       = "wdt1_fck",
         .prcm           = {
                 .omap4  = {
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 1edd000a8143..0b339861d751 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -217,7 +217,7 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir)
                 return 0;
 
         d = debugfs_create_dir(pwrdm->name, (struct dentry *)dir);
-        if (!(IS_ERR_OR_NULL(d)))
+        if (d)
                 (void) debugfs_create_file("suspend", S_IRUGO|S_IWUSR, d,
                         (void *)pwrdm, &pwrdm_suspend_fops);
 
@@ -261,8 +261,8 @@ static int __init pm_dbg_init(void)
                 return 0;
 
         d = debugfs_create_dir("pm_debug", NULL);
-        if (IS_ERR_OR_NULL(d))
-                return PTR_ERR(d);
+        if (!d)
+                return -EINVAL;
 
         (void) debugfs_create_file("count", S_IRUGO,
                 d, (void *)DEBUG_FILE_COUNTERS, &debug_fops);
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 8e61d80bf6b3..86babd740d41 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -52,7 +52,6 @@ enum {
 #define ALREADYACTIVE_SWITCH            0
 #define FORCEWAKEUP_SWITCH              1
 #define LOWPOWERSTATE_SWITCH            2
-#define ERROR_SWITCH                    3
 
 /* pwrdm_list contains all registered struct powerdomains */
 static LIST_HEAD(pwrdm_list);
@@ -233,10 +232,7 @@ static u8 _pwrdm_save_clkdm_state_and_activate(struct powerdomain *pwrdm,
 {
         u8 sleep_switch;
 
-        if (curr_pwrst < 0) {
-                WARN_ON(1);
-                sleep_switch = ERROR_SWITCH;
-        } else if (curr_pwrst < PWRDM_POWER_ON) {
+        if (curr_pwrst < PWRDM_POWER_ON) {
                 if (curr_pwrst > pwrst &&
                     pwrdm->flags & PWRDM_HAS_LOWPOWERSTATECHANGE &&
                     arch_pwrdm->pwrdm_set_lowpwrstchange) {
@@ -1091,7 +1087,8 @@ int pwrdm_post_transition(struct powerdomain *pwrdm)
  */
 int omap_set_pwrdm_state(struct powerdomain *pwrdm, u8 pwrst)
 {
-        u8 curr_pwrst, next_pwrst, sleep_switch;
+        u8 next_pwrst, sleep_switch;
+        int curr_pwrst;
         int ret = 0;
         bool hwsup = false;
 
@@ -1107,16 +1104,17 @@ int omap_set_pwrdm_state(struct powerdomain *pwrdm, u8 pwrst)
         pwrdm_lock(pwrdm);
 
         curr_pwrst = pwrdm_read_pwrst(pwrdm);
+        if (curr_pwrst < 0) {
+                ret = -EINVAL;
+                goto osps_out;
+        }
+
         next_pwrst = pwrdm_read_next_pwrst(pwrdm);
         if (curr_pwrst == pwrst && next_pwrst == pwrst)
                 goto osps_out;
 
         sleep_switch = _pwrdm_save_clkdm_state_and_activate(pwrdm, curr_pwrst,
                                                             pwrst, &hwsup);
-        if (sleep_switch == ERROR_SWITCH) {
-                ret = -EINVAL;
-                goto osps_out;
-        }
 
         ret = pwrdm_set_next_pwrst(pwrdm, pwrst);
         if (ret)
@@ -1182,7 +1180,7 @@ bool pwrdm_can_ever_lose_context(struct powerdomain *pwrdm)
 {
         int i;
 
-        if (IS_ERR_OR_NULL(pwrdm)) {
+        if (!pwrdm) {
                 pr_debug("powerdomain: %s: invalid powerdomain pointer\n",
                          __func__);
                 return 1;
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index d35f98aabf7a..415c7e0c9393 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -81,13 +81,13 @@ static struct prm_reset_src_map omap44xx_prm_reset_src_map[] = {
 /* Read a register in a CM/PRM instance in the PRM module */
 u32 omap4_prm_read_inst_reg(s16 inst, u16 reg)
 {
-        return __raw_readl(OMAP44XX_PRM_REGADDR(inst, reg));
+        return __raw_readl(prm_base + inst + reg);
 }
 
 /* Write into a register in a CM/PRM instance in the PRM module */
 void omap4_prm_write_inst_reg(u32 val, s16 inst, u16 reg)
 {
-        __raw_writel(val, OMAP44XX_PRM_REGADDR(inst, reg));
+        __raw_writel(val, prm_base + inst + reg);
 }
 
 /* Read-modify-write a register in a PRM module. Caller must lock */
@@ -650,7 +650,7 @@ static struct prm_ll_data omap44xx_prm_ll_data = {
 
 int __init omap44xx_prm_init(void)
 {
-        if (!cpu_is_omap44xx())
+        if (!cpu_is_omap44xx() && !soc_is_omap54xx())
                 return 0;
 
         return prm_register(&omap44xx_prm_ll_data);
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index c62116bbc760..18fdeeb3a44a 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -413,7 +413,9 @@ IS_OMAP_TYPE(3430, 0x3430)
 
 #define OMAP54XX_CLASS          0x54000054
 #define OMAP5430_REV_ES1_0      (OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
+#define OMAP5430_REV_ES2_0      (OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
 #define OMAP5432_REV_ES1_0      (OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
+#define OMAP5432_REV_ES2_0      (OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
 
 void omap2xxx_check_revision(void);
 void omap3xxx_check_revision(void);
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 4fd80257c73e..f12aa6c15da4 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -57,15 +57,6 @@
 #include "common.h"
 #include "powerdomain.h"
 
-/* Parent clocks, eventually these will come from the clock framework */
-
-#define OMAP2_MPU_SOURCE        "sys_ck"
-#define OMAP3_MPU_SOURCE        OMAP2_MPU_SOURCE
-#define OMAP4_MPU_SOURCE        "sys_clkin_ck"
-#define OMAP2_32K_SOURCE        "func_32k_ck"
-#define OMAP3_32K_SOURCE        "omap_32k_fck"
-#define OMAP4_32K_SOURCE        "sys_32k_ck"
-
 #define REALTIME_COUNTER_BASE                           0x48243200
 #define INCREMENTER_NUMERATOR_OFFSET                    0x10
 #define INCREMENTER_DENUMERATOR_RELOAD_OFFSET           0x14
@@ -129,7 +120,6 @@ static void omap2_gp_timer_set_mode(enum clock_event_mode mode,
 }
 
 static struct clock_event_device clockevent_gpt = {
-        .name           = "gp_timer",
         .features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
         .rating         = 300,
         .set_next_event = omap2_gp_timer_set_next_event,
@@ -170,6 +160,12 @@ static struct device_node * __init omap_get_timer_dt(struct of_device_id *match,
                 if (property && !of_get_property(np, property, NULL))
                         continue;
 
+                if (!property && (of_get_property(np, "ti,timer-alwon", NULL) ||
+                                  of_get_property(np, "ti,timer-dsp", NULL) ||
+                                  of_get_property(np, "ti,timer-pwm", NULL) ||
+                                  of_get_property(np, "ti,timer-secure", NULL)))
+                        continue;
+
                 of_add_property(np, &device_disabled);
                 return np;
         }
@@ -214,16 +210,17 @@ static u32 __init omap_dm_timer_get_errata(void)
 }
 
 static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
-                                                int gptimer_id,
-                                                const char *fck_source,
-                                                const char *property,
-                                                int posted)
+                                         const char *fck_source,
+                                         const char *property,
+                                         const char **timer_name,
+                                         int posted)
 {
         char name[10]; /* 10 = sizeof("gptXX_Xck0") */
         const char *oh_name;
         struct device_node *np;
         struct omap_hwmod *oh;
         struct resource irq, mem;
+        struct clk *src;
         int r = 0;
 
         if (of_have_populated_dt()) {
@@ -243,10 +240,10 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
 
                 of_node_put(np);
         } else {
-                if (omap_dm_timer_reserve_systimer(gptimer_id))
+                if (omap_dm_timer_reserve_systimer(timer->id))
                         return -ENODEV;
 
-                sprintf(name, "timer%d", gptimer_id);
+                sprintf(name, "timer%d", timer->id);
                 oh_name = name;
         }
 
@@ -254,6 +251,8 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
         if (!oh)
                 return -ENODEV;
 
+        *timer_name = oh->name;
+
         if (!of_have_populated_dt()) {
                 r = omap_hwmod_get_resource_byname(oh, IORESOURCE_IRQ, NULL,
                                                    &irq);
@@ -276,24 +275,24 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
         /* After the dmtimer is using hwmod these clocks won't be needed */
         timer->fclk = clk_get(NULL, omap_hwmod_get_main_clk(oh));
         if (IS_ERR(timer->fclk))
-                return -ENODEV;
+                return PTR_ERR(timer->fclk);
 
-        /* FIXME: Need to remove hard-coded test on timer ID */
-        if (gptimer_id != 12) {
-                struct clk *src;
-
-                src = clk_get(NULL, fck_source);
-                if (IS_ERR(src)) {
-                        r = -EINVAL;
-                } else {
-                        r = clk_set_parent(timer->fclk, src);
-                        if (IS_ERR_VALUE(r))
-                                pr_warn("%s: %s cannot set source\n",
-                                        __func__, oh->name);
+        src = clk_get(NULL, fck_source);
+        if (IS_ERR(src))
+                return PTR_ERR(src);
+
+        if (clk_get_parent(timer->fclk) != src) {
+                r = clk_set_parent(timer->fclk, src);
+                if (r < 0) {
+                        pr_warn("%s: %s cannot set source\n", __func__,
+                                oh->name);
                         clk_put(src);
+                        return r;
                 }
         }
 
+        clk_put(src);
+
         omap_hwmod_setup_one(oh_name);
         omap_hwmod_enable(oh);
         __omap_dm_timer_init_regs(timer);
@@ -317,6 +316,7 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
 {
         int res;
 
+        clkev.id = gptimer_id;
         clkev.errata = omap_dm_timer_get_errata();
 
         /*
@@ -326,8 +326,8 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
          */
         __omap_dm_timer_override_errata(&clkev, OMAP_TIMER_ERRATA_I103_I767);
 
-        res = omap_dm_timer_init_one(&clkev, gptimer_id, fck_source, property,
-                                     OMAP_TIMER_POSTED);
+        res = omap_dm_timer_init_one(&clkev, fck_source, property,
+                                     &clockevent_gpt.name, OMAP_TIMER_POSTED);
         BUG_ON(res);
 
         omap2_gp_timer_irq.dev_id = &clkev;
@@ -341,8 +341,8 @@ static void __init omap2_gp_clockevent_init(int gptimer_id,
                                         3, /* Timer internal resynch latency */
                                         0xffffffff);
 
-        pr_info("OMAP clockevent source: GPTIMER%d at %lu Hz\n",
-                gptimer_id, clkev.rate);
+        pr_info("OMAP clockevent source: %s at %lu Hz\n", clockevent_gpt.name,
+                clkev.rate);
 }
 
 /* Clocksource code */
@@ -359,7 +359,6 @@ static cycle_t clocksource_read_cycles(struct clocksource *cs)
 }
 
 static struct clocksource clocksource_gpt = {
-        .name           = "gp_timer",
         .rating         = 300,
         .read           = clocksource_read_cycles,
         .mask           = CLOCKSOURCE_MASK(32),
@@ -442,13 +441,16 @@ static int __init __maybe_unused omap2_sync32k_clocksource_init(void)
 }
 
 static void __init omap2_gptimer_clocksource_init(int gptimer_id,
-                                                const char *fck_source)
+                                                  const char *fck_source,
+                                                  const char *property)
 {
         int res;
 
+        clksrc.id = gptimer_id;
         clksrc.errata = omap_dm_timer_get_errata();
 
-        res = omap_dm_timer_init_one(&clksrc, gptimer_id, fck_source, NULL,
+        res = omap_dm_timer_init_one(&clksrc, fck_source, property,
+                                     &clocksource_gpt.name,
                                      OMAP_TIMER_NONPOSTED);
         BUG_ON(res);
 
@@ -461,8 +463,8 @@ static void __init omap2_gptimer_clocksource_init(int gptimer_id,
                 pr_err("Could not register clocksource %s\n",
                         clocksource_gpt.name);
         else
-                pr_info("OMAP clocksource: GPTIMER%d at %lu Hz\n",
-                        gptimer_id, clksrc.rate);
+                pr_info("OMAP clocksource: %s at %lu Hz\n",
+                        clocksource_gpt.name, clksrc.rate);
 }
 
 #ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
@@ -487,7 +489,7 @@ static void __init realtime_counter_init(void)
                 pr_err("%s: ioremap failed\n", __func__);
                 return;
         }
-        sys_clk = clk_get(NULL, "sys_clkin_ck");
+        sys_clk = clk_get(NULL, "sys_clkin");
         if (IS_ERR(sys_clk)) {
                 pr_err("%s: failed to get system clock handle\n", __func__);
                 iounmap(base);
@@ -544,49 +546,52 @@ static inline void __init realtime_counter_init(void)
 #endif
 
 #define OMAP_SYS_GP_TIMER_INIT(name, clkev_nr, clkev_src, clkev_prop,   \
-                               clksrc_nr, clksrc_src)                   \
+                               clksrc_nr, clksrc_src, clksrc_prop)      \
 void __init omap##name##_gptimer_timer_init(void)                       \
 {                                                                       \
         omap_dmtimer_init();                                            \
         omap2_gp_clockevent_init((clkev_nr), clkev_src, clkev_prop);    \
-        omap2_gptimer_clocksource_init((clksrc_nr), clksrc_src);        \
+        omap2_gptimer_clocksource_init((clksrc_nr), clksrc_src,         \
+                                        clksrc_prop);                   \
 }
 
 #define OMAP_SYS_32K_TIMER_INIT(name, clkev_nr, clkev_src, clkev_prop,  \
-                                clksrc_nr, clksrc_src)                  \
+                                clksrc_nr, clksrc_src, clksrc_prop)     \
 void __init omap##name##_sync32k_timer_init(void)               \
 {                                                                       \
         omap_dmtimer_init();                                            \
         omap2_gp_clockevent_init((clkev_nr), clkev_src, clkev_prop);    \
         /* Enable the use of clocksource="gp_timer" kernel parameter */ \
         if (use_gptimer_clksrc)                                         \
-                omap2_gptimer_clocksource_init((clksrc_nr), clksrc_src);\
+                omap2_gptimer_clocksource_init((clksrc_nr), clksrc_src, \
+                                                clksrc_prop);           \
         else                                                            \
                 omap2_sync32k_clocksource_init();                       \
 }
 
 #ifdef CONFIG_ARCH_OMAP2
-OMAP_SYS_32K_TIMER_INIT(2, 1, OMAP2_32K_SOURCE, "ti,timer-alwon",
-                        2, OMAP2_MPU_SOURCE);
+OMAP_SYS_32K_TIMER_INIT(2, 1, "timer_32k_ck", "ti,timer-alwon",
+                        2, "timer_sys_ck", NULL);
 #endif /* CONFIG_ARCH_OMAP2 */
 
 #ifdef CONFIG_ARCH_OMAP3
-OMAP_SYS_32K_TIMER_INIT(3, 1, OMAP3_32K_SOURCE, "ti,timer-alwon",
-                        2, OMAP3_MPU_SOURCE);
-OMAP_SYS_32K_TIMER_INIT(3_secure, 12, OMAP3_32K_SOURCE, "ti,timer-secure",
-                        2, OMAP3_MPU_SOURCE);
-OMAP_SYS_GP_TIMER_INIT(3_gp, 1, OMAP3_MPU_SOURCE, "ti,timer-alwon",
-                       2, OMAP3_MPU_SOURCE);
+OMAP_SYS_32K_TIMER_INIT(3, 1, "timer_32k_ck", "ti,timer-alwon",
+                        2, "timer_sys_ck", NULL);
+OMAP_SYS_32K_TIMER_INIT(3_secure, 12, "secure_32k_fck", "ti,timer-secure",
+                        2, "timer_sys_ck", NULL);
 #endif /* CONFIG_ARCH_OMAP3 */
 
-#ifdef CONFIG_SOC_AM33XX
-OMAP_SYS_GP_TIMER_INIT(3_am33xx, 1, OMAP4_MPU_SOURCE, "ti,timer-alwon",
-                       2, OMAP4_MPU_SOURCE);
-#endif /* CONFIG_SOC_AM33XX */
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM33XX)
+OMAP_SYS_GP_TIMER_INIT(3, 2, "timer_sys_ck", NULL,
+                       1, "timer_sys_ck", "ti,timer-alwon");
+#endif
+
+#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
+static OMAP_SYS_32K_TIMER_INIT(4, 1, "timer_32k_ck", "ti,timer-alwon",
+                               2, "sys_clkin_ck", NULL);
+#endif
 
 #ifdef CONFIG_ARCH_OMAP4
-OMAP_SYS_32K_TIMER_INIT(4, 1, OMAP4_32K_SOURCE, "ti,timer-alwon",
-                        2, OMAP4_MPU_SOURCE);
 #ifdef CONFIG_LOCAL_TIMERS
 static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, OMAP44XX_LOCAL_TWD_BASE, 29);
 void __init omap4_local_timer_init(void)
@@ -615,13 +620,11 @@ void __init omap4_local_timer_init(void)
 #endif /* CONFIG_ARCH_OMAP4 */
 
 #ifdef CONFIG_SOC_OMAP5
-OMAP_SYS_32K_TIMER_INIT(5, 1, OMAP4_32K_SOURCE, "ti,timer-alwon",
-                        2, OMAP4_MPU_SOURCE);
 void __init omap5_realtime_timer_init(void)
 {
         int err;
 
-        omap5_sync32k_timer_init();
+        omap4_sync32k_timer_init();
         realtime_counter_init();
 
         err = arch_timer_of_register();
diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c
index 3cdc1bb8254c..6d29e6a39540 100644
--- a/arch/arm/mach-tegra/board-harmony-pcie.c
+++ b/arch/arm/mach-tegra/board-harmony-pcie.c
@@ -56,9 +56,9 @@ int __init harmony_pcie_init(void)
         gpio_direction_output(en_vdd_1v05, 1);
 
         regulator = regulator_get(NULL, "vdd_ldo0,vddio_pex_clk");
-        if (IS_ERR_OR_NULL(regulator)) {
-                pr_err("%s: regulator_get failed: %d\n", __func__,
-                       (int)PTR_ERR(regulator));
+        if (IS_ERR(regulator)) {
+                err = PTR_ERR(regulator);
+                pr_err("%s: regulator_get failed: %d\n", __func__, err);
                 goto err_reg;
         }
 
diff --git a/arch/arm/mach-tegra/tegra2_emc.c b/arch/arm/mach-tegra/tegra2_emc.c
index ce7ce42a1ac9..9e8bdfa2b369 100644
--- a/arch/arm/mach-tegra/tegra2_emc.c
+++ b/arch/arm/mach-tegra/tegra2_emc.c
@@ -276,7 +276,7 @@ static struct tegra_emc_pdata *tegra_emc_fill_pdata(struct platform_device *pdev
         int i;
 
         WARN_ON(pdev->dev.platform_data);
-        BUG_ON(IS_ERR_OR_NULL(c));
+        BUG_ON(IS_ERR(c));
 
         pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
         pdata->tables = devm_kzalloc(&pdev->dev, sizeof(*pdata->tables),
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 537870d3fea8..002da9a369d5 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -140,14 +140,13 @@ struct device * __init ux500_soc_device_init(const char *soc_id)
         soc_info_populate(soc_dev_attr, soc_id);
 
         soc_dev = soc_device_register(soc_dev_attr);
-        if (IS_ERR_OR_NULL(soc_dev)) {
+        if (IS_ERR(soc_dev)) {
                 kfree(soc_dev_attr);
                 return NULL;
         }
 
         parent = soc_device_to_device(soc_dev);
-        if (!IS_ERR_OR_NULL(parent))
-                device_create_file(parent, &ux500_soc_attr);
+        device_create_file(parent, &ux500_soc_attr);
 
         return parent;
 }
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index a0daa2fb5de6..e6dbc8dbe6a6 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -140,8 +140,7 @@ static int omap_dm_timer_prepare(struct omap_dm_timer *timer)
          */
         if (!(timer->capability & OMAP_TIMER_NEEDS_RESET)) {
                 timer->fclk = clk_get(&timer->pdev->dev, "fck");
-                if (WARN_ON_ONCE(IS_ERR_OR_NULL(timer->fclk))) {
-                        timer->fclk = NULL;
+                if (WARN_ON_ONCE(IS_ERR(timer->fclk))) {
                         dev_err(&timer->pdev->dev, ": No fclk handle.\n");
                         return -EINVAL;
                 }
@@ -373,7 +372,7 @@ EXPORT_SYMBOL_GPL(omap_dm_timer_modify_idlect_mask);
 
 struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)
 {
-        if (timer)
+        if (timer && !IS_ERR(timer->fclk))
                 return timer->fclk;
         return NULL;
 }
@@ -482,7 +481,7 @@ int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
         if (pdata && pdata->set_timer_src)
                 return pdata->set_timer_src(timer->pdev, source);
 
-        if (!timer->fclk)
+        if (IS_ERR(timer->fclk))
                 return -EINVAL;
 
         switch (source) {
@@ -500,13 +499,13 @@ int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
         }
 
         parent = clk_get(&timer->pdev->dev, parent_name);
-        if (IS_ERR_OR_NULL(parent)) {
+        if (IS_ERR(parent)) {
                 pr_err("%s: %s not found\n", __func__, parent_name);
                 return -EINVAL;
         }
 
         ret = clk_set_parent(timer->fclk, parent);
-        if (IS_ERR_VALUE(ret))
+        if (ret < 0)
                 pr_err("%s: failed to set %s as parent\n", __func__,
                         parent_name);
 
@@ -808,6 +807,7 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
                 return  -ENOMEM;
         }
 
+        timer->fclk = ERR_PTR(-ENODEV);
         timer->io_base = devm_ioremap_resource(dev, mem);
         if (IS_ERR(timer->io_base))
                 return PTR_ERR(timer->io_base);