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FAILED: patch "[PATCH] acpi, nfit: Fix ARS overflow continuation" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 3fa58dcab50a0aa16817f16a8d38aee869eb3fb9 Mon Sep 17 00:00:00 2001 From: Dan Williams <dan.j.williams(a)intel.com> Date: Thu, 1 Nov 2018 00:30:22 -0700 Subject: [PATCH] acpi, nfit: Fix ARS overflow continuation When the platform BIOS is unable to report all the media error records it requires the OS to restart the scrub at a prescribed location. The driver detects the overflow condition, but then fails to report it to the ARS state machine after reaping the records. Propagate -ENOSPC correctly to continue the ARS operation. Cc: <stable(a)vger.kernel.org> Fixes: 1cf03c00e7c1 ("nfit: scrub and register regions in a workqueue") Reported-by: Jacek Zloch <jacek.zloch(a)intel.com> Reviewed-by: Dave Jiang <dave.jiang(a)intel.com> Signed-off-by: Dan Williams <dan.j.williams(a)intel.com> diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index f8c638f3c946..5970b8f5f768 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -2928,9 +2928,9 @@ static int acpi_nfit_query_poison(struct acpi_nfit_desc *acpi_desc) return rc; if (ars_status_process_records(acpi_desc)) - return -ENOMEM; + dev_err(acpi_desc->dev, "Failed to process ARS records\n"); - return 0; + return rc; } static int ars_register(struct acpi_nfit_desc *acpi_desc,

7 years, 1 month

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FAILED: patch "[PATCH] acpi, nfit: Fix ARS overflow continuation" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 3fa58dcab50a0aa16817f16a8d38aee869eb3fb9 Mon Sep 17 00:00:00 2001 From: Dan Williams <dan.j.williams(a)intel.com> Date: Thu, 1 Nov 2018 00:30:22 -0700 Subject: [PATCH] acpi, nfit: Fix ARS overflow continuation When the platform BIOS is unable to report all the media error records it requires the OS to restart the scrub at a prescribed location. The driver detects the overflow condition, but then fails to report it to the ARS state machine after reaping the records. Propagate -ENOSPC correctly to continue the ARS operation. Cc: <stable(a)vger.kernel.org> Fixes: 1cf03c00e7c1 ("nfit: scrub and register regions in a workqueue") Reported-by: Jacek Zloch <jacek.zloch(a)intel.com> Reviewed-by: Dave Jiang <dave.jiang(a)intel.com> Signed-off-by: Dan Williams <dan.j.williams(a)intel.com> diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index f8c638f3c946..5970b8f5f768 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -2928,9 +2928,9 @@ static int acpi_nfit_query_poison(struct acpi_nfit_desc *acpi_desc) return rc; if (ars_status_process_records(acpi_desc)) - return -ENOMEM; + dev_err(acpi_desc->dev, "Failed to process ARS records\n"); - return 0; + return rc; } static int ars_register(struct acpi_nfit_desc *acpi_desc,

7 years, 1 month

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FAILED: patch "[PATCH] acpi/nfit, x86/mce: Validate a MCE's address before using it" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From e8a308e5f47e545e0d41d0686c00f5f5217c5f61 Mon Sep 17 00:00:00 2001 From: Vishal Verma <vishal.l.verma(a)intel.com> Date: Thu, 25 Oct 2018 18:37:29 -0600 Subject: [PATCH] acpi/nfit, x86/mce: Validate a MCE's address before using it The NFIT machine check handler uses the physical address from the mce structure, and compares it against information in the ACPI NFIT table to determine whether that location lies on an NVDIMM. The mce->addr field however may not always be valid, and this is indicated by the MCI_STATUS_ADDRV bit in the status field. Export mce_usable_address() which already performs validation for the address, and use it in the NFIT handler. Fixes: 6839a6d96f4e ("nfit: do an ARS scrub on hitting a latent media error") Reported-by: Robert Elliott <elliott(a)hpe.com> Signed-off-by: Vishal Verma <vishal.l.verma(a)intel.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> CC: Arnd Bergmann <arnd(a)arndb.de> Cc: Dan Williams <dan.j.williams(a)intel.com> CC: Dave Jiang <dave.jiang(a)intel.com> CC: elliott(a)hpe.com CC: "H. Peter Anvin" <hpa(a)zytor.com> CC: Ingo Molnar <mingo(a)redhat.com> CC: Len Brown <lenb(a)kernel.org> CC: linux-acpi(a)vger.kernel.org CC: linux-edac <linux-edac(a)vger.kernel.org> CC: linux-nvdimm(a)lists.01.org CC: Qiuxu Zhuo <qiuxu.zhuo(a)intel.com> CC: "Rafael J. Wysocki" <rjw(a)rjwysocki.net> CC: Ross Zwisler <zwisler(a)kernel.org> CC: stable <stable(a)vger.kernel.org> CC: Thomas Gleixner <tglx(a)linutronix.de> CC: Tony Luck <tony.luck(a)intel.com> CC: x86-ml <x86(a)kernel.org> CC: Yazen Ghannam <yazen.ghannam(a)amd.com> Link: http://lkml.kernel.org/r/20181026003729.8420-2-vishal.l.verma@intel.com diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index dbd9fe2f6163..c1a812bd5a27 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -222,6 +222,7 @@ static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c) { return mce_am int mce_available(struct cpuinfo_x86 *c); bool mce_is_memory_error(struct mce *m); bool mce_is_correctable(struct mce *m); +int mce_usable_address(struct mce *m); DECLARE_PER_CPU(unsigned, mce_exception_count); DECLARE_PER_CPU(unsigned, mce_poll_count); diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 77527b8ea982..36d2696c9563 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -485,7 +485,7 @@ static void mce_report_event(struct pt_regs *regs) * be somewhat complicated (e.g. segment offset would require an instruction * parser). So only support physical addresses up to page granuality for now. */ -static int mce_usable_address(struct mce *m) +int mce_usable_address(struct mce *m) { if (!(m->status & MCI_STATUS_ADDRV)) return 0; @@ -505,6 +505,7 @@ static int mce_usable_address(struct mce *m) return 1; } +EXPORT_SYMBOL_GPL(mce_usable_address); bool mce_is_memory_error(struct mce *m) { diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c index 7a51707f87e9..d6c1b10f6c25 100644 --- a/drivers/acpi/nfit/mce.c +++ b/drivers/acpi/nfit/mce.c @@ -29,6 +29,10 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val, if (!mce_is_memory_error(mce) || mce_is_correctable(mce)) return NOTIFY_DONE; + /* Verify the address reported in the MCE is valid. */ + if (!mce_usable_address(mce)) + return NOTIFY_DONE; + /* * mce->addr contains the physical addr accessed that caused the * machine check. We need to walk through the list of NFITs, and see

7 years, 1 month

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FAILED: patch "[PATCH] acpi/nfit, x86/mce: Validate a MCE's address before using it" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From e8a308e5f47e545e0d41d0686c00f5f5217c5f61 Mon Sep 17 00:00:00 2001 From: Vishal Verma <vishal.l.verma(a)intel.com> Date: Thu, 25 Oct 2018 18:37:29 -0600 Subject: [PATCH] acpi/nfit, x86/mce: Validate a MCE's address before using it The NFIT machine check handler uses the physical address from the mce structure, and compares it against information in the ACPI NFIT table to determine whether that location lies on an NVDIMM. The mce->addr field however may not always be valid, and this is indicated by the MCI_STATUS_ADDRV bit in the status field. Export mce_usable_address() which already performs validation for the address, and use it in the NFIT handler. Fixes: 6839a6d96f4e ("nfit: do an ARS scrub on hitting a latent media error") Reported-by: Robert Elliott <elliott(a)hpe.com> Signed-off-by: Vishal Verma <vishal.l.verma(a)intel.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> CC: Arnd Bergmann <arnd(a)arndb.de> Cc: Dan Williams <dan.j.williams(a)intel.com> CC: Dave Jiang <dave.jiang(a)intel.com> CC: elliott(a)hpe.com CC: "H. Peter Anvin" <hpa(a)zytor.com> CC: Ingo Molnar <mingo(a)redhat.com> CC: Len Brown <lenb(a)kernel.org> CC: linux-acpi(a)vger.kernel.org CC: linux-edac <linux-edac(a)vger.kernel.org> CC: linux-nvdimm(a)lists.01.org CC: Qiuxu Zhuo <qiuxu.zhuo(a)intel.com> CC: "Rafael J. Wysocki" <rjw(a)rjwysocki.net> CC: Ross Zwisler <zwisler(a)kernel.org> CC: stable <stable(a)vger.kernel.org> CC: Thomas Gleixner <tglx(a)linutronix.de> CC: Tony Luck <tony.luck(a)intel.com> CC: x86-ml <x86(a)kernel.org> CC: Yazen Ghannam <yazen.ghannam(a)amd.com> Link: http://lkml.kernel.org/r/20181026003729.8420-2-vishal.l.verma@intel.com diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index dbd9fe2f6163..c1a812bd5a27 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -222,6 +222,7 @@ static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c) { return mce_am int mce_available(struct cpuinfo_x86 *c); bool mce_is_memory_error(struct mce *m); bool mce_is_correctable(struct mce *m); +int mce_usable_address(struct mce *m); DECLARE_PER_CPU(unsigned, mce_exception_count); DECLARE_PER_CPU(unsigned, mce_poll_count); diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 77527b8ea982..36d2696c9563 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -485,7 +485,7 @@ static void mce_report_event(struct pt_regs *regs) * be somewhat complicated (e.g. segment offset would require an instruction * parser). So only support physical addresses up to page granuality for now. */ -static int mce_usable_address(struct mce *m) +int mce_usable_address(struct mce *m) { if (!(m->status & MCI_STATUS_ADDRV)) return 0; @@ -505,6 +505,7 @@ static int mce_usable_address(struct mce *m) return 1; } +EXPORT_SYMBOL_GPL(mce_usable_address); bool mce_is_memory_error(struct mce *m) { diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c index 7a51707f87e9..d6c1b10f6c25 100644 --- a/drivers/acpi/nfit/mce.c +++ b/drivers/acpi/nfit/mce.c @@ -29,6 +29,10 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val, if (!mce_is_memory_error(mce) || mce_is_correctable(mce)) return NOTIFY_DONE; + /* Verify the address reported in the MCE is valid. */ + if (!mce_usable_address(mce)) + return NOTIFY_DONE; + /* * mce->addr contains the physical addr accessed that caused the * machine check. We need to walk through the list of NFITs, and see

7 years, 1 month

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FAILED: patch "[PATCH] acpi/nfit, x86/mce: Handle only uncorrectable machine checks" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 5d96c9342c23ee1d084802dcf064caa67ecaa45b Mon Sep 17 00:00:00 2001 From: Vishal Verma <vishal.l.verma(a)intel.com> Date: Thu, 25 Oct 2018 18:37:28 -0600 Subject: [PATCH] acpi/nfit, x86/mce: Handle only uncorrectable machine checks The MCE handler for nfit devices is called for memory errors on a Non-Volatile DIMM and adds the error location to a 'badblocks' list. This list is used by the various NVDIMM drivers to avoid consuming known poison locations during IO. The MCE handler gets called for both corrected and uncorrectable errors. Until now, both kinds of errors have been added to the badblocks list. However, corrected memory errors indicate that the problem has already been fixed by hardware, and the resulting interrupt is merely a notification to Linux. As far as future accesses to that location are concerned, it is perfectly fine to use, and thus doesn't need to be included in the above badblocks list. Add a check in the nfit MCE handler to filter out corrected mce events, and only process uncorrectable errors. Fixes: 6839a6d96f4e ("nfit: do an ARS scrub on hitting a latent media error") Reported-by: Omar Avelar <omar.avelar(a)intel.com> Signed-off-by: Vishal Verma <vishal.l.verma(a)intel.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> CC: Arnd Bergmann <arnd(a)arndb.de> CC: Dan Williams <dan.j.williams(a)intel.com> CC: Dave Jiang <dave.jiang(a)intel.com> CC: elliott(a)hpe.com CC: "H. Peter Anvin" <hpa(a)zytor.com> CC: Ingo Molnar <mingo(a)redhat.com> CC: Len Brown <lenb(a)kernel.org> CC: linux-acpi(a)vger.kernel.org CC: linux-edac <linux-edac(a)vger.kernel.org> CC: linux-nvdimm(a)lists.01.org CC: Qiuxu Zhuo <qiuxu.zhuo(a)intel.com> CC: "Rafael J. Wysocki" <rjw(a)rjwysocki.net> CC: Ross Zwisler <zwisler(a)kernel.org> CC: stable <stable(a)vger.kernel.org> CC: Thomas Gleixner <tglx(a)linutronix.de> CC: Tony Luck <tony.luck(a)intel.com> CC: x86-ml <x86(a)kernel.org> CC: Yazen Ghannam <yazen.ghannam(a)amd.com> Link: http://lkml.kernel.org/r/20181026003729.8420-1-vishal.l.verma@intel.com diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index 4da9b1c58d28..dbd9fe2f6163 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -221,6 +221,7 @@ static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c) { return mce_am int mce_available(struct cpuinfo_x86 *c); bool mce_is_memory_error(struct mce *m); +bool mce_is_correctable(struct mce *m); DECLARE_PER_CPU(unsigned, mce_exception_count); DECLARE_PER_CPU(unsigned, mce_poll_count); diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 8c66d2fc8f81..77527b8ea982 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -534,7 +534,7 @@ bool mce_is_memory_error(struct mce *m) } EXPORT_SYMBOL_GPL(mce_is_memory_error); -static bool mce_is_correctable(struct mce *m) +bool mce_is_correctable(struct mce *m) { if (m->cpuvendor == X86_VENDOR_AMD && m->status & MCI_STATUS_DEFERRED) return false; @@ -547,6 +547,7 @@ static bool mce_is_correctable(struct mce *m) return true; } +EXPORT_SYMBOL_GPL(mce_is_correctable); static bool cec_add_mce(struct mce *m) { diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c index e9626bf6ca29..7a51707f87e9 100644 --- a/drivers/acpi/nfit/mce.c +++ b/drivers/acpi/nfit/mce.c @@ -25,8 +25,8 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val, struct acpi_nfit_desc *acpi_desc; struct nfit_spa *nfit_spa; - /* We only care about memory errors */ - if (!mce_is_memory_error(mce)) + /* We only care about uncorrectable memory errors */ + if (!mce_is_memory_error(mce) || mce_is_correctable(mce)) return NOTIFY_DONE; /*

7 years, 1 month

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FAILED: patch "[PATCH] acpi/nfit, x86/mce: Handle only uncorrectable machine checks" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 5d96c9342c23ee1d084802dcf064caa67ecaa45b Mon Sep 17 00:00:00 2001 From: Vishal Verma <vishal.l.verma(a)intel.com> Date: Thu, 25 Oct 2018 18:37:28 -0600 Subject: [PATCH] acpi/nfit, x86/mce: Handle only uncorrectable machine checks The MCE handler for nfit devices is called for memory errors on a Non-Volatile DIMM and adds the error location to a 'badblocks' list. This list is used by the various NVDIMM drivers to avoid consuming known poison locations during IO. The MCE handler gets called for both corrected and uncorrectable errors. Until now, both kinds of errors have been added to the badblocks list. However, corrected memory errors indicate that the problem has already been fixed by hardware, and the resulting interrupt is merely a notification to Linux. As far as future accesses to that location are concerned, it is perfectly fine to use, and thus doesn't need to be included in the above badblocks list. Add a check in the nfit MCE handler to filter out corrected mce events, and only process uncorrectable errors. Fixes: 6839a6d96f4e ("nfit: do an ARS scrub on hitting a latent media error") Reported-by: Omar Avelar <omar.avelar(a)intel.com> Signed-off-by: Vishal Verma <vishal.l.verma(a)intel.com> Signed-off-by: Borislav Petkov <bp(a)suse.de> CC: Arnd Bergmann <arnd(a)arndb.de> CC: Dan Williams <dan.j.williams(a)intel.com> CC: Dave Jiang <dave.jiang(a)intel.com> CC: elliott(a)hpe.com CC: "H. Peter Anvin" <hpa(a)zytor.com> CC: Ingo Molnar <mingo(a)redhat.com> CC: Len Brown <lenb(a)kernel.org> CC: linux-acpi(a)vger.kernel.org CC: linux-edac <linux-edac(a)vger.kernel.org> CC: linux-nvdimm(a)lists.01.org CC: Qiuxu Zhuo <qiuxu.zhuo(a)intel.com> CC: "Rafael J. Wysocki" <rjw(a)rjwysocki.net> CC: Ross Zwisler <zwisler(a)kernel.org> CC: stable <stable(a)vger.kernel.org> CC: Thomas Gleixner <tglx(a)linutronix.de> CC: Tony Luck <tony.luck(a)intel.com> CC: x86-ml <x86(a)kernel.org> CC: Yazen Ghannam <yazen.ghannam(a)amd.com> Link: http://lkml.kernel.org/r/20181026003729.8420-1-vishal.l.verma@intel.com diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index 4da9b1c58d28..dbd9fe2f6163 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -221,6 +221,7 @@ static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c) { return mce_am int mce_available(struct cpuinfo_x86 *c); bool mce_is_memory_error(struct mce *m); +bool mce_is_correctable(struct mce *m); DECLARE_PER_CPU(unsigned, mce_exception_count); DECLARE_PER_CPU(unsigned, mce_poll_count); diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 8c66d2fc8f81..77527b8ea982 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -534,7 +534,7 @@ bool mce_is_memory_error(struct mce *m) } EXPORT_SYMBOL_GPL(mce_is_memory_error); -static bool mce_is_correctable(struct mce *m) +bool mce_is_correctable(struct mce *m) { if (m->cpuvendor == X86_VENDOR_AMD && m->status & MCI_STATUS_DEFERRED) return false; @@ -547,6 +547,7 @@ static bool mce_is_correctable(struct mce *m) return true; } +EXPORT_SYMBOL_GPL(mce_is_correctable); static bool cec_add_mce(struct mce *m) { diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c index e9626bf6ca29..7a51707f87e9 100644 --- a/drivers/acpi/nfit/mce.c +++ b/drivers/acpi/nfit/mce.c @@ -25,8 +25,8 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val, struct acpi_nfit_desc *acpi_desc; struct nfit_spa *nfit_spa; - /* We only care about memory errors */ - if (!mce_is_memory_error(mce)) + /* We only care about uncorrectable memory errors */ + if (!mce_is_memory_error(mce) || mce_is_correctable(mce)) return NOTIFY_DONE; /*

7 years, 1 month

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request for 4.14-stable: fec3624f0bcd ("thermal: enable broadcom menu for arm64 bcm2835")

by Sudip Mukherjee

Hi Greg, This was not marked for stable but seems it should be in stable. Please apply to your queue of 4.14-stable. -- Regards Sudip

7 years, 1 month

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[PATCH stable/4.14] media: ov7670: make "xclk" clock optional

by Lubomir Rintel

[ Upstream commit 786fa584eda86d6598db3b87c61dc81f68808d11 ] When the "xclk" clock was added, it was made mandatory. This broke the driver on an OLPC plaform which doesn't know such clock. Make it optional. Tested on a OLPC XO-1 laptop. Fixes: 0a024d634cee ("[media] ov7670: get xclk") Cc: stable(a)vger.kernel.org # 4.11+ Signed-off-by: Lubomir Rintel <lkundrak(a)v3.sk> Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung(a)kernel.org> --- drivers/media/i2c/ov7670.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c index e88549f0e704..39ff73a6a807 100644 --- a/drivers/media/i2c/ov7670.c +++ b/drivers/media/i2c/ov7670.c @@ -1612,23 +1612,29 @@ static int ov7670_probe(struct i2c_client *client, info->pclk_hb_disable = true; } - info->clk = devm_clk_get(&client->dev, "xclk"); - if (IS_ERR(info->clk)) - return PTR_ERR(info->clk); - ret = clk_prepare_enable(info->clk); - if (ret) - return ret; + info->clk = devm_clk_get(&client->dev, "xclk"); /* optional */ + if (IS_ERR(info->clk)) { + ret = PTR_ERR(info->clk); + if (ret == -ENOENT) + info->clk = NULL; + else + return ret; + } + if (info->clk) { + ret = clk_prepare_enable(info->clk); + if (ret) + return ret; + info->clock_speed = clk_get_rate(info->clk) / 1000000; + if (info->clock_speed < 10 || info->clock_speed > 48) { + ret = -EINVAL; + goto clk_disable; + } + } ret = ov7670_init_gpio(client, info); if (ret) goto clk_disable; - info->clock_speed = clk_get_rate(info->clk) / 1000000; - if (info->clock_speed < 10 || info->clock_speed > 48) { - ret = -EINVAL; - goto clk_disable; - } - /* Make sure it's an ov7670 */ ret = ov7670_detect(sd); if (ret) { -- 2.19.1

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request for 4.14-stable: 00c5a926af12 ("clk: mvebu: use correct bit for 98DX3236 NAND")

by Sudip Mukherjee

Hi Greg, This was not marked for stable but seems it should be in stable. Please apply to your queue of 4.14-stable. -- Regards Sudip

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FAILED: patch "[PATCH] clk: rockchip: fix wrong mmc sample phase shift for rk3328" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 82f4b67f018c88a7cc9337f0067ed3d6ec352648 Mon Sep 17 00:00:00 2001 From: Ziyuan Xu <xzy.xu(a)rock-chips.com> Date: Thu, 11 Oct 2018 15:26:43 +0800 Subject: [PATCH] clk: rockchip: fix wrong mmc sample phase shift for rk3328 mmc sample shift is 0 for RK3328 referring to the TRM. So fix them. Fixes: fe3511ad8a1c ("clk: rockchip: add clock controller for rk3328") Cc: stable(a)vger.kernel.org Signed-off-by: Ziyuan Xu <xzy.xu(a)rock-chips.com> Signed-off-by: Shawn Lin <shawn.lin(a)rock-chips.com> Signed-off-by: Heiko Stuebner <heiko(a)sntech.de> diff --git a/drivers/clk/rockchip/clk-rk3328.c b/drivers/clk/rockchip/clk-rk3328.c index 252366a5231f..2c5426607790 100644 --- a/drivers/clk/rockchip/clk-rk3328.c +++ b/drivers/clk/rockchip/clk-rk3328.c @@ -813,22 +813,22 @@ static struct rockchip_clk_branch rk3328_clk_branches[] __initdata = { MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "clk_sdmmc", RK3328_SDMMC_CON0, 1), MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "clk_sdmmc", - RK3328_SDMMC_CON1, 1), + RK3328_SDMMC_CON1, 0), MMC(SCLK_SDIO_DRV, "sdio_drv", "clk_sdio", RK3328_SDIO_CON0, 1), MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "clk_sdio", - RK3328_SDIO_CON1, 1), + RK3328_SDIO_CON1, 0), MMC(SCLK_EMMC_DRV, "emmc_drv", "clk_emmc", RK3328_EMMC_CON0, 1), MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "clk_emmc", - RK3328_EMMC_CON1, 1), + RK3328_EMMC_CON1, 0), MMC(SCLK_SDMMC_EXT_DRV, "sdmmc_ext_drv", "clk_sdmmc_ext", RK3328_SDMMC_EXT_CON0, 1), MMC(SCLK_SDMMC_EXT_SAMPLE, "sdmmc_ext_sample", "clk_sdmmc_ext", - RK3328_SDMMC_EXT_CON1, 1), + RK3328_SDMMC_EXT_CON1, 0), }; static const char *const rk3328_critical_clocks[] __initconst = {

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