--- /dev/null
+From 512a928affd51c2dc631401e56ad5ee5d5dd68b6 Mon Sep 17 00:00:00 2001
+From: Ahmad Fatoum <a.fatoum@pengutronix.de>
+Date: Thu, 16 Jan 2020 15:18:49 +0100
+Subject: ARM: imx: build v7_cpu_resume() unconditionally
+
+From: Ahmad Fatoum <a.fatoum@pengutronix.de>
+
+commit 512a928affd51c2dc631401e56ad5ee5d5dd68b6 upstream.
+
+This function is not only needed by the platform suspend code, but is also
+reused as the CPU resume function when the ARM cores can be powered down
+completely in deep idle, which is the case on i.MX6SX and i.MX6UL(L).
+
+Providing the static inline stub whenever CONFIG_SUSPEND is disabled means
+that those platforms will hang on resume from cpuidle if suspend is disabled.
+
+So there are two problems:
+
+ - The static inline stub masks the linker error
+ - The function is not available where needed
+
+Fix both by just building the function unconditionally, when
+CONFIG_SOC_IMX6 is enabled. The actual code is three instructions long,
+so it's arguably ok to just leave it in for all i.MX6 kernel configurations.
+
+Fixes: 05136f0897b5 ("ARM: imx: support arm power off in cpuidle for i.mx6sx")
+Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
+Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
+Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
+Signed-off-by: Shawn Guo <shawnguo@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/arm/mach-imx/Makefile | 2 ++
+ arch/arm/mach-imx/common.h | 4 ++--
+ arch/arm/mach-imx/resume-imx6.S | 24 ++++++++++++++++++++++++
+ arch/arm/mach-imx/suspend-imx6.S | 14 --------------
+ 4 files changed, 28 insertions(+), 16 deletions(-)
+
+--- a/arch/arm/mach-imx/Makefile
++++ b/arch/arm/mach-imx/Makefile
+@@ -91,6 +91,8 @@ AFLAGS_suspend-imx6.o :=-Wa,-march=armv7
+ obj-$(CONFIG_SOC_IMX6) += suspend-imx6.o
+ obj-$(CONFIG_SOC_IMX53) += suspend-imx53.o
+ endif
++AFLAGS_resume-imx6.o :=-Wa,-march=armv7-a
++obj-$(CONFIG_SOC_IMX6) += resume-imx6.o
+ obj-$(CONFIG_SOC_IMX6) += pm-imx6.o
+
+ obj-$(CONFIG_SOC_IMX50) += mach-imx50.o
+--- a/arch/arm/mach-imx/common.h
++++ b/arch/arm/mach-imx/common.h
+@@ -115,17 +115,17 @@ void imx_cpu_die(unsigned int cpu);
+ int imx_cpu_kill(unsigned int cpu);
+
+ #ifdef CONFIG_SUSPEND
+-void v7_cpu_resume(void);
+ void imx53_suspend(void __iomem *ocram_vbase);
+ extern const u32 imx53_suspend_sz;
+ void imx6_suspend(void __iomem *ocram_vbase);
+ #else
+-static inline void v7_cpu_resume(void) {}
+ static inline void imx53_suspend(void __iomem *ocram_vbase) {}
+ static const u32 imx53_suspend_sz;
+ static inline void imx6_suspend(void __iomem *ocram_vbase) {}
+ #endif
+
++void v7_cpu_resume(void);
++
+ void imx6_pm_ccm_init(const char *ccm_compat);
+ void imx6q_pm_init(void);
+ void imx6dl_pm_init(void);
+--- /dev/null
++++ b/arch/arm/mach-imx/resume-imx6.S
+@@ -0,0 +1,24 @@
++/* SPDX-License-Identifier: GPL-2.0-or-later */
++/*
++ * Copyright 2014 Freescale Semiconductor, Inc.
++ */
++
++#include <linux/linkage.h>
++#include <asm/assembler.h>
++#include <asm/asm-offsets.h>
++#include <asm/hardware/cache-l2x0.h>
++#include "hardware.h"
++
++/*
++ * The following code must assume it is running from physical address
++ * where absolute virtual addresses to the data section have to be
++ * turned into relative ones.
++ */
++
++ENTRY(v7_cpu_resume)
++ bl v7_invalidate_l1
++#ifdef CONFIG_CACHE_L2X0
++ bl l2c310_early_resume
++#endif
++ b cpu_resume
++ENDPROC(v7_cpu_resume)
+--- a/arch/arm/mach-imx/suspend-imx6.S
++++ b/arch/arm/mach-imx/suspend-imx6.S
+@@ -333,17 +333,3 @@ resume:
+
+ ret lr
+ ENDPROC(imx6_suspend)
+-
+-/*
+- * The following code must assume it is running from physical address
+- * where absolute virtual addresses to the data section have to be
+- * turned into relative ones.
+- */
+-
+-ENTRY(v7_cpu_resume)
+- bl v7_invalidate_l1
+-#ifdef CONFIG_CACHE_L2X0
+- bl l2c310_early_resume
+-#endif
+- b cpu_resume
+-ENDPROC(v7_cpu_resume)
--- /dev/null
+From 36d5d22090d13fd3a7a8c9663a711cbe6970aac8 Mon Sep 17 00:00:00 2001
+From: Dan Carpenter <dan.carpenter@oracle.com>
+Date: Mon, 17 Feb 2020 17:40:50 +0300
+Subject: dmaengine: coh901318: Fix a double lock bug in dma_tc_handle()
+
+From: Dan Carpenter <dan.carpenter@oracle.com>
+
+commit 36d5d22090d13fd3a7a8c9663a711cbe6970aac8 upstream.
+
+The caller is already holding the lock so this will deadlock.
+
+Fixes: 0b58828c923e ("DMAENGINE: COH 901 318 remove irq counting")
+Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
+Link: https://lore.kernel.org/r/20200217144050.3i4ymbytogod4ijn@kili.mountain
+Signed-off-by: Vinod Koul <vkoul@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/dma/coh901318.c | 4 ----
+ 1 file changed, 4 deletions(-)
+
+--- a/drivers/dma/coh901318.c
++++ b/drivers/dma/coh901318.c
+@@ -1960,8 +1960,6 @@ static void dma_tc_handle(struct coh9013
+ return;
+ }
+
+- spin_lock(&cohc->lock);
+-
+ /*
+ * When we reach this point, at least one queue item
+ * should have been moved over from cohc->queue to
+@@ -1982,8 +1980,6 @@ static void dma_tc_handle(struct coh9013
+ if (coh901318_queue_start(cohc) == NULL)
+ cohc->busy = 0;
+
+- spin_unlock(&cohc->lock);
+-
+ /*
+ * This tasklet will remove items from cohc->active
+ * and thus terminates them.
--- /dev/null
+From 44f2f882909fedfc3a56e4b90026910456019743 Mon Sep 17 00:00:00 2001
+From: Dan Carpenter <dan.carpenter@oracle.com>
+Date: Tue, 3 Mar 2020 13:16:08 +0300
+Subject: hwmon: (adt7462) Fix an error return in ADT7462_REG_VOLT()
+
+From: Dan Carpenter <dan.carpenter@oracle.com>
+
+commit 44f2f882909fedfc3a56e4b90026910456019743 upstream.
+
+This is only called from adt7462_update_device(). The caller expects it
+to return zero on error. I fixed a similar issue earlier in commit
+a4bf06d58f21 ("hwmon: (adt7462) ADT7462_REG_VOLT_MAX() should return 0")
+but I missed this one.
+
+Fixes: c0b4e3ab0c76 ("adt7462: new hwmon driver")
+Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
+Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
+Link: https://lore.kernel.org/r/20200303101608.kqjwfcazu2ylhi2a@kili.mountain
+Signed-off-by: Guenter Roeck <linux@roeck-us.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/hwmon/adt7462.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/hwmon/adt7462.c
++++ b/drivers/hwmon/adt7462.c
+@@ -426,7 +426,7 @@ static int ADT7462_REG_VOLT(struct adt74
+ return 0x95;
+ break;
+ }
+- return -ENODEV;
++ return 0;
+ }
+
+ /* Provide labels for sysfs */
--- /dev/null
+From fc37a1632d40c80c067eb1bc235139f5867a2667 Mon Sep 17 00:00:00 2001
+From: "Desnes A. Nunes do Rosario" <desnesn@linux.ibm.com>
+Date: Thu, 27 Feb 2020 10:47:15 -0300
+Subject: powerpc: fix hardware PMU exception bug on PowerVM compatibility mode systems
+
+From: Desnes A. Nunes do Rosario <desnesn@linux.ibm.com>
+
+commit fc37a1632d40c80c067eb1bc235139f5867a2667 upstream.
+
+PowerVM systems running compatibility mode on a few Power8 revisions are
+still vulnerable to the hardware defect that loses PMU exceptions arriving
+prior to a context switch.
+
+The software fix for this issue is enabled through the CPU_FTR_PMAO_BUG
+cpu_feature bit, nevertheless this bit also needs to be set for PowerVM
+compatibility mode systems.
+
+Fixes: 68f2f0d431d9ea4 ("powerpc: Add a cpu feature CPU_FTR_PMAO_BUG")
+Signed-off-by: Desnes A. Nunes do Rosario <desnesn@linux.ibm.com>
+Reviewed-by: Leonardo Bras <leonardo@linux.ibm.com>
+Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
+Link: https://lore.kernel.org/r/20200227134715.9715-1-desnesn@linux.ibm.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/powerpc/kernel/cputable.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/arch/powerpc/kernel/cputable.c
++++ b/arch/powerpc/kernel/cputable.c
+@@ -2147,11 +2147,13 @@ static struct cpu_spec * __init setup_cp
+ * oprofile_cpu_type already has a value, then we are
+ * possibly overriding a real PVR with a logical one,
+ * and, in that case, keep the current value for
+- * oprofile_cpu_type.
++ * oprofile_cpu_type. Futhermore, let's ensure that the
++ * fix for the PMAO bug is enabled on compatibility mode.
+ */
+ if (old.oprofile_cpu_type != NULL) {
+ t->oprofile_cpu_type = old.oprofile_cpu_type;
+ t->oprofile_type = old.oprofile_type;
++ t->cpu_features |= old.cpu_features & CPU_FTR_PMAO_BUG;
+ }
+ }
+
asoc-dapm-correct-dapm-handling-of-active-widgets-during-shutdown.patch
rdma-iwcm-fix-iwcm-work-deallocation.patch
rmda-cm-fix-missing-ib_cm_destroy_id-in-ib_cm_insert_listen.patch
+arm-imx-build-v7_cpu_resume-unconditionally.patch
+hwmon-adt7462-fix-an-error-return-in-adt7462_reg_volt.patch
+dmaengine-coh901318-fix-a-double-lock-bug-in-dma_tc_handle.patch
+powerpc-fix-hardware-pmu-exception-bug-on-powervm-compatibility-mode-systems.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
