RE: [PATCH] PCI: Do not enable async suspend for JMicron chips
Hello Bjorn, Will send out one new quirk-solution, and some reaction below:) > -Original Message- > From: Bjorn Helgaas [mailto:bhelg...@google.com] > Sent: Friday, November 07, 2014 1:39 AM > To: Liu, Chuansheng > Cc: Lu, Aaron; Barto; Tejun Heo (t...@kernel.org); Rafael Wysocki; > linux-...@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips > > On Wed, Nov 5, 2014 at 11:39 PM, Liu, Chuansheng > wrote: > > > > > >> -Original Message- > >> From: Lu, Aaron > >> Sent: Thursday, November 06, 2014 1:37 PM > >> To: Liu, Chuansheng; Bjorn Helgaas > >> Cc: Barto; Tejun Heo (t...@kernel.org); Rafael Wysocki; > >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org > >> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips > >> > >> On 11/06/2014 01:29 PM, Liu, Chuansheng wrote: > >> > Hello Bjorn, > >> > > >> >> -Original Message- > >> >> From: Bjorn Helgaas [mailto:bhelg...@google.com] > >> >> Sent: Thursday, November 06, 2014 12:09 PM > >> >> To: Liu, Chuansheng > >> >> Cc: Barto; Tejun Heo (t...@kernel.org); Lu, Aaron; Rafael Wysocki; > >> >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org > >> >> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips > >> >> > >> >> On Wed, Nov 5, 2014 at 6:48 PM, Liu, Chuansheng > >> >> wrote: > >> >>> Hello Bjorn, > >> >>> > >> >>>> -----Original Message- > >> >>>> From: Bjorn Helgaas [mailto:bhelg...@google.com] > >> >>>> Sent: Thursday, November 06, 2014 3:04 AM > >> >>>> To: Barto > >> >>>> Cc: Liu, Chuansheng; Lu, Aaron; Tejun Heo; Rafael Wysocki; > >> >>>> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org > >> >>>> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron > chips > >> >>>> > >> >>>> On Wed, Nov 5, 2014 at 11:46 AM, Barto > > >> >>>> wrote: > >> >>>>> this patch solves these 2 bug reports : > >> >>>>> > >> >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=84861 > >> >>>>> > >> >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551 > >> >>>> > >> >>>> Those bugs were already mentioned. But e6b7e41cdd8c claims to > solve > >> >>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a > >> >>>> duplicate of 81551, so it should also be fixed by e6b7e41cdd8c. > >> >>>> > >> >>>> So the question is, why was e6b7e41cdd8c insufficient? Presumably > it > >> >>>> was tested and somebody thought it did fix the problem. > >> >>> > >> >>> The first patch e6b7e41cdd8c which is just exclude some of JMicron > >> >> chips(363/361) out of async_suspend, > >> >>> then Barto found the same issue on JMicron 368, so we need one more > >> >> general patch to let JMicron chips > >> >>> out of async_suspend, so we make this patch. > >> >>> > >> >>> Bjorn, tj, > >> >>> Could you kindly take this patch? As Barto said, it effected the user > >> >> experience indeed, thanks. > >> >> > >> >> Thanks for clarifying the changelog as far as the different chips and > >> >> the different bugzillas. > >> >> > >> >> But you haven't addressed my concerns about (1) putting a PCI vendor > >> >> ID check in the generic PCI core code, and (2) applying this to *all* > >> >> JMicron devices. You might want to explore a quirk-type solution or > >> >> maybe just add the JMicron 368 to the checks added by e6b7e41cdd8c. > >> > Understand your point, in fact, before this patch submitted, I had > >> > written > >> another patch https://lkml.org/lkml/2014/9/24/68 > >> > which addressed to add the quirk-type solution in ATA code, and Aaron > given > >> better suggestion that implemented at pci_pm_init(). > >> > How do you think of it? Thanks. > >> > >> I think Bjorn means that we should place the code as a fixup somewhere > >> in the qui
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
> The idea of a quirk is to work around a defect in a device. What is > the defect in this case? It seems there are two devices involved, > e.g. (from https://bugzilla.kernel.org/show_bug.cgi?id=81551): > > 02:00.0 JMicron Technology Corp. JMB363 SATA/IDE Controller > 02:00.1 JMicron Technology Corp. JMB363 SATA/IDE Controller > in my case I don't have exactly the same lines in dmesg, my JMicron JMB363/368 seems to have a different design, it's not exactly identical to JMB363 SATA/IDE Controller, in dmesg I can read this : dmesg | grep micron [0.860659] pata_jmicron :03:00.1: enabling device ( -> 0001) [0.866760] scsi0 : pata_jmicron [0.870045] scsi1 : pata_jmicron lspci : lspci | grep JMicron 03:00.0 SATA controller: JMicron Technology Corp. JMB363 SATA/IDE Controller (rev 10) 03:00.1 IDE interface: JMicron Technology Corp. JMB368 IDE controller (rev 10) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On Wed, Nov 5, 2014 at 11:39 PM, Liu, Chuansheng wrote: > > >> -Original Message- >> From: Lu, Aaron >> Sent: Thursday, November 06, 2014 1:37 PM >> To: Liu, Chuansheng; Bjorn Helgaas >> Cc: Barto; Tejun Heo (t...@kernel.org); Rafael Wysocki; >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org >> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips >> >> On 11/06/2014 01:29 PM, Liu, Chuansheng wrote: >> > Hello Bjorn, >> > >> >> -Original Message- >> >> From: Bjorn Helgaas [mailto:bhelg...@google.com] >> >> Sent: Thursday, November 06, 2014 12:09 PM >> >> To: Liu, Chuansheng >> >> Cc: Barto; Tejun Heo (t...@kernel.org); Lu, Aaron; Rafael Wysocki; >> >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org >> >> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips >> >> >> >> On Wed, Nov 5, 2014 at 6:48 PM, Liu, Chuansheng >> >> wrote: >> >>> Hello Bjorn, >> >>> >> >>>> -Original Message- >> >>>> From: Bjorn Helgaas [mailto:bhelg...@google.com] >> >>>> Sent: Thursday, November 06, 2014 3:04 AM >> >>>> To: Barto >> >>>> Cc: Liu, Chuansheng; Lu, Aaron; Tejun Heo; Rafael Wysocki; >> >>>> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org >> >>>> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips >> >>>> >> >>>> On Wed, Nov 5, 2014 at 11:46 AM, Barto >> >>>> wrote: >> >>>>> this patch solves these 2 bug reports : >> >>>>> >> >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=84861 >> >>>>> >> >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551 >> >>>> >> >>>> Those bugs were already mentioned. But e6b7e41cdd8c claims to solve >> >>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a >> >>>> duplicate of 81551, so it should also be fixed by e6b7e41cdd8c. >> >>>> >> >>>> So the question is, why was e6b7e41cdd8c insufficient? Presumably it >> >>>> was tested and somebody thought it did fix the problem. >> >>> >> >>> The first patch e6b7e41cdd8c which is just exclude some of JMicron >> >> chips(363/361) out of async_suspend, >> >>> then Barto found the same issue on JMicron 368, so we need one more >> >> general patch to let JMicron chips >> >>> out of async_suspend, so we make this patch. >> >>> >> >>> Bjorn, tj, >> >>> Could you kindly take this patch? As Barto said, it effected the user >> >> experience indeed, thanks. >> >> >> >> Thanks for clarifying the changelog as far as the different chips and >> >> the different bugzillas. >> >> >> >> But you haven't addressed my concerns about (1) putting a PCI vendor >> >> ID check in the generic PCI core code, and (2) applying this to *all* >> >> JMicron devices. You might want to explore a quirk-type solution or >> >> maybe just add the JMicron 368 to the checks added by e6b7e41cdd8c. >> > Understand your point, in fact, before this patch submitted, I had written >> another patch https://lkml.org/lkml/2014/9/24/68 >> > which addressed to add the quirk-type solution in ATA code, and Aaron given >> better suggestion that implemented at pci_pm_init(). >> > How do you think of it? Thanks. >> >> I think Bjorn means that we should place the code as a fixup somewhere >> in the quirks.c. I didn't take a closer look but DECLARE_PCI_FIXUP_FINAL >> for those JMicron PCI devices seems to be a proper phase. > > Thanks Aaron, then how about below patch? > > diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c > index 47e418b..9e85f86 100644 > --- a/drivers/ata/pata_jmicron.c > +++ b/drivers/ata/pata_jmicron.c > @@ -158,6 +158,21 @@ static int jmicron_init_one (struct pci_dev *pdev, const > struct pci_device_id *i > return ata_pci_bmdma_init_one(pdev, ppi, &jmicron_sht, NULL, 0); > } > > +/* > + * For JMicron chips, we need to disable the async_suspend method, otherwise > + * they will hit the power-on issue when doing device resume, add one quick > + * solution to disable the async_suspend method. A "quick solution" is a red flag for me, bec
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
I tried your patch and it doesn't work,
I think you have forgotten something, maybe you need also to modify the
file /drivers/ata/ahci.c and not only /drivers/ata/pata_jmicron.c
don't forget that I have a JMB363/368 SATA/IDE controller PCIe, which is
both a SATA and IDE controller in one PCie card, and a IDE hardisk is
connected on this JMB363/368 SATA/IDE controller PCIe,
for now the patch who works is this :
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev)
pm_runtime_forbid(&dev->dev);
pm_runtime_set_active(&dev->dev);
pm_runtime_enable(&dev->dev);
- device_enable_async_suspend(&dev->dev);
+
+ /*
+ * The JMicron chip 361/363/368 contains one SATA controller and
+ * one PATA controller, they are brother-relation ship in PCI tree,
+ * but for powering on these both controller, we must follow the
+ * sequence one by one, otherwise one of them can not be powered on
+ * successfully, so here we disable the async suspend method for
+ * Jmicron chip.
+ */
+ if (dev->vendor != PCI_VENDOR_ID_JMICRON)
+ device_enable_async_suspend(&dev->dev);
dev->wakeup_prepared = false;
dev->pm_cap = 0;
Le 06/11/2014 07:39, Liu, Chuansheng a écrit :
>
> diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
> index 47e418b..9e85f86 100644
> --- a/drivers/ata/pata_jmicron.c
> +++ b/drivers/ata/pata_jmicron.c
> @@ -158,6 +158,21 @@ static int jmicron_init_one (struct pci_dev *pdev, const
> struct pci_device_id *i
> return ata_pci_bmdma_init_one(pdev, ppi, &jmicron_sht, NULL, 0);
> }
>
> +/*
> + * For JMicron chips, we need to disable the async_suspend method, otherwise
> + * they will hit the power-on issue when doing device resume, add one quick
> + * solution to disable the async_suspend method.
> + */
> +static void pci_async_suspend_fixup(struct pci_dev *pdev)
> +{
> + /*
> +* disabling the async_suspend method for JMicron chips to
> +* avoid device resuming issue.
> +*/
> + device_disable_async_suspend(&pdev->dev);
> +}
> +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID,
> pci_async_suspend_fixup);
> +
> static const struct pci_device_id jmicron_pci_tbl[] = {
> { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
> PCI_CLASS_STORAGE_IDE << 8, 0x00, 0 },
>
> Barto,
> Could you have a try on your side? Thanks.
>
>
--
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RE: [PATCH] PCI: Do not enable async suspend for JMicron chips
> -Original Message-
> From: Lu, Aaron
> Sent: Thursday, November 06, 2014 1:37 PM
> To: Liu, Chuansheng; Bjorn Helgaas
> Cc: Barto; Tejun Heo (t...@kernel.org); Rafael Wysocki;
> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
>
> On 11/06/2014 01:29 PM, Liu, Chuansheng wrote:
> > Hello Bjorn,
> >
> >> -Original Message-
> >> From: Bjorn Helgaas [mailto:bhelg...@google.com]
> >> Sent: Thursday, November 06, 2014 12:09 PM
> >> To: Liu, Chuansheng
> >> Cc: Barto; Tejun Heo (t...@kernel.org); Lu, Aaron; Rafael Wysocki;
> >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> >> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
> >>
> >> On Wed, Nov 5, 2014 at 6:48 PM, Liu, Chuansheng
> >> wrote:
> >>> Hello Bjorn,
> >>>
> >>>> -Original Message-
> >>>> From: Bjorn Helgaas [mailto:bhelg...@google.com]
> >>>> Sent: Thursday, November 06, 2014 3:04 AM
> >>>> To: Barto
> >>>> Cc: Liu, Chuansheng; Lu, Aaron; Tejun Heo; Rafael Wysocki;
> >>>> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> >>>> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
> >>>>
> >>>> On Wed, Nov 5, 2014 at 11:46 AM, Barto
> >>>> wrote:
> >>>>> this patch solves these 2 bug reports :
> >>>>>
> >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=84861
> >>>>>
> >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551
> >>>>
> >>>> Those bugs were already mentioned. But e6b7e41cdd8c claims to solve
> >>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a
> >>>> duplicate of 81551, so it should also be fixed by e6b7e41cdd8c.
> >>>>
> >>>> So the question is, why was e6b7e41cdd8c insufficient? Presumably it
> >>>> was tested and somebody thought it did fix the problem.
> >>>
> >>> The first patch e6b7e41cdd8c which is just exclude some of JMicron
> >> chips(363/361) out of async_suspend,
> >>> then Barto found the same issue on JMicron 368, so we need one more
> >> general patch to let JMicron chips
> >>> out of async_suspend, so we make this patch.
> >>>
> >>> Bjorn, tj,
> >>> Could you kindly take this patch? As Barto said, it effected the user
> >> experience indeed, thanks.
> >>
> >> Thanks for clarifying the changelog as far as the different chips and
> >> the different bugzillas.
> >>
> >> But you haven't addressed my concerns about (1) putting a PCI vendor
> >> ID check in the generic PCI core code, and (2) applying this to *all*
> >> JMicron devices. You might want to explore a quirk-type solution or
> >> maybe just add the JMicron 368 to the checks added by e6b7e41cdd8c.
> > Understand your point, in fact, before this patch submitted, I had written
> another patch https://lkml.org/lkml/2014/9/24/68
> > which addressed to add the quirk-type solution in ATA code, and Aaron given
> better suggestion that implemented at pci_pm_init().
> > How do you think of it? Thanks.
>
> I think Bjorn means that we should place the code as a fixup somewhere
> in the quirks.c. I didn't take a closer look but DECLARE_PCI_FIXUP_FINAL
> for those JMicron PCI devices seems to be a proper phase.
Thanks Aaron, then how about below patch?
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 47e418b..9e85f86 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -158,6 +158,21 @@ static int jmicron_init_one (struct pci_dev *pdev, const
struct pci_device_id *i
return ata_pci_bmdma_init_one(pdev, ppi, &jmicron_sht, NULL, 0);
}
+/*
+ * For JMicron chips, we need to disable the async_suspend method, otherwise
+ * they will hit the power-on issue when doing device resume, add one quick
+ * solution to disable the async_suspend method.
+ */
+static void pci_async_suspend_fixup(struct pci_dev *pdev)
+{
+ /*
+* disabling the async_suspend method for JMicron chips to
+* avoid device resuming issue.
+*/
+ device_disable_async_suspend(&pdev->dev);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID,
pci_async_suspend_fixup);
+
static const struct pci_device_id jmicron_pci_tbl[] = {
{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_IDE << 8, 0x00, 0 },
Barto,
Could you have a try on your side? Thanks.
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On 11/06/2014 01:29 PM, Liu, Chuansheng wrote: > Hello Bjorn, > >> -Original Message- >> From: Bjorn Helgaas [mailto:bhelg...@google.com] >> Sent: Thursday, November 06, 2014 12:09 PM >> To: Liu, Chuansheng >> Cc: Barto; Tejun Heo (t...@kernel.org); Lu, Aaron; Rafael Wysocki; >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org >> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips >> >> On Wed, Nov 5, 2014 at 6:48 PM, Liu, Chuansheng >> wrote: >>> Hello Bjorn, >>> >>>> -Original Message- >>>> From: Bjorn Helgaas [mailto:bhelg...@google.com] >>>> Sent: Thursday, November 06, 2014 3:04 AM >>>> To: Barto >>>> Cc: Liu, Chuansheng; Lu, Aaron; Tejun Heo; Rafael Wysocki; >>>> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org >>>> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips >>>> >>>> On Wed, Nov 5, 2014 at 11:46 AM, Barto >>>> wrote: >>>>> this patch solves these 2 bug reports : >>>>> >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=84861 >>>>> >>>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551 >>>> >>>> Those bugs were already mentioned. But e6b7e41cdd8c claims to solve >>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a >>>> duplicate of 81551, so it should also be fixed by e6b7e41cdd8c. >>>> >>>> So the question is, why was e6b7e41cdd8c insufficient? Presumably it >>>> was tested and somebody thought it did fix the problem. >>> >>> The first patch e6b7e41cdd8c which is just exclude some of JMicron >> chips(363/361) out of async_suspend, >>> then Barto found the same issue on JMicron 368, so we need one more >> general patch to let JMicron chips >>> out of async_suspend, so we make this patch. >>> >>> Bjorn, tj, >>> Could you kindly take this patch? As Barto said, it effected the user >> experience indeed, thanks. >> >> Thanks for clarifying the changelog as far as the different chips and >> the different bugzillas. >> >> But you haven't addressed my concerns about (1) putting a PCI vendor >> ID check in the generic PCI core code, and (2) applying this to *all* >> JMicron devices. You might want to explore a quirk-type solution or >> maybe just add the JMicron 368 to the checks added by e6b7e41cdd8c. > Understand your point, in fact, before this patch submitted, I had written > another patch https://lkml.org/lkml/2014/9/24/68 > which addressed to add the quirk-type solution in ATA code, and Aaron given > better suggestion that implemented at pci_pm_init(). > How do you think of it? Thanks. I think Bjorn means that we should place the code as a fixup somewhere in the quirks.c. I didn't take a closer look but DECLARE_PCI_FIXUP_FINAL for those JMicron PCI devices seems to be a proper phase. Thanks, Aaron -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: [PATCH] PCI: Do not enable async suspend for JMicron chips
Hello Bjorn,
> -Original Message-
> From: Bjorn Helgaas [mailto:bhelg...@google.com]
> Sent: Thursday, November 06, 2014 12:09 PM
> To: Liu, Chuansheng
> Cc: Barto; Tejun Heo (t...@kernel.org); Lu, Aaron; Rafael Wysocki;
> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
>
> On Wed, Nov 5, 2014 at 6:48 PM, Liu, Chuansheng
> wrote:
> > Hello Bjorn,
> >
> >> -Original Message-
> >> From: Bjorn Helgaas [mailto:bhelg...@google.com]
> >> Sent: Thursday, November 06, 2014 3:04 AM
> >> To: Barto
> >> Cc: Liu, Chuansheng; Lu, Aaron; Tejun Heo; Rafael Wysocki;
> >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org
> >> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
> >>
> >> On Wed, Nov 5, 2014 at 11:46 AM, Barto
> >> wrote:
> >> > this patch solves these 2 bug reports :
> >> >
> >> > https://bugzilla.kernel.org/show_bug.cgi?id=84861
> >> >
> >> > https://bugzilla.kernel.org/show_bug.cgi?id=81551
> >>
> >> Those bugs were already mentioned. But e6b7e41cdd8c claims to solve
> >> https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a
> >> duplicate of 81551, so it should also be fixed by e6b7e41cdd8c.
> >>
> >> So the question is, why was e6b7e41cdd8c insufficient? Presumably it
> >> was tested and somebody thought it did fix the problem.
> >
> > The first patch e6b7e41cdd8c which is just exclude some of JMicron
> chips(363/361) out of async_suspend,
> > then Barto found the same issue on JMicron 368, so we need one more
> general patch to let JMicron chips
> > out of async_suspend, so we make this patch.
> >
> > Bjorn, tj,
> > Could you kindly take this patch? As Barto said, it effected the user
> experience indeed, thanks.
>
> Thanks for clarifying the changelog as far as the different chips and
> the different bugzillas.
>
> But you haven't addressed my concerns about (1) putting a PCI vendor
> ID check in the generic PCI core code, and (2) applying this to *all*
> JMicron devices. You might want to explore a quirk-type solution or
> maybe just add the JMicron 368 to the checks added by e6b7e41cdd8c.
Understand your point, in fact, before this patch submitted, I had written
another patch https://lkml.org/lkml/2014/9/24/68
which addressed to add the quirk-type solution in ATA code, and Aaron given
better suggestion that implemented at pci_pm_init().
How do you think of it? Thanks.
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Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
Hello Bjorn, in my bugreport I have already tried to add the JMicron 368 in the "if statement" and it didn't work, check my message here : https://bugzilla.kernel.org/show_bug.cgi?id=84861#c11 if Chuansheng has choosen a more generic way ( applying the patch to all JMicron devices ) it's because also because we don't know how many JMBxxx models could be affected by this bug, tomorrow maybe one user would create a bug report about a "JMB369" pci card who have again this bug, and maybe on month later another user with a "JMB382", it could be a nightmare for Chuanseng if he had to create every time a new patch for each model of JMicron, so for the moment the better approach for me is to disable async_suspend for all JMBxxx JMicron, Chuanseng's patch seems reasonnable, as long as we don't know the exact list of JMBxxx models we can assume that all JMicron SATA/IDE are affected by this problem Le 06/11/2014 05:08, Bjorn Helgaas a écrit : > > But you haven't addressed my concerns about (1) putting a PCI vendor > ID check in the generic PCI core code, and (2) applying this to *all* > JMicron devices. You might want to explore a quirk-type solution or > maybe just add the JMicron 368 to the checks added by e6b7e41cdd8c. > > Bjorn > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On Wed, Nov 5, 2014 at 6:48 PM, Liu, Chuansheng wrote: > Hello Bjorn, > >> -Original Message- >> From: Bjorn Helgaas [mailto:bhelg...@google.com] >> Sent: Thursday, November 06, 2014 3:04 AM >> To: Barto >> Cc: Liu, Chuansheng; Lu, Aaron; Tejun Heo; Rafael Wysocki; >> linux-...@vger.kernel.org; linux-kernel@vger.kernel.org >> Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips >> >> On Wed, Nov 5, 2014 at 11:46 AM, Barto >> wrote: >> > this patch solves these 2 bug reports : >> > >> > https://bugzilla.kernel.org/show_bug.cgi?id=84861 >> > >> > https://bugzilla.kernel.org/show_bug.cgi?id=81551 >> >> Those bugs were already mentioned. But e6b7e41cdd8c claims to solve >> https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a >> duplicate of 81551, so it should also be fixed by e6b7e41cdd8c. >> >> So the question is, why was e6b7e41cdd8c insufficient? Presumably it >> was tested and somebody thought it did fix the problem. > > The first patch e6b7e41cdd8c which is just exclude some of JMicron > chips(363/361) out of async_suspend, > then Barto found the same issue on JMicron 368, so we need one more general > patch to let JMicron chips > out of async_suspend, so we make this patch. > > Bjorn, tj, > Could you kindly take this patch? As Barto said, it effected the user > experience indeed, thanks. Thanks for clarifying the changelog as far as the different chips and the different bugzillas. But you haven't addressed my concerns about (1) putting a PCI vendor ID check in the generic PCI core code, and (2) applying this to *all* JMicron devices. You might want to explore a quirk-type solution or maybe just add the JMicron 368 to the checks added by e6b7e41cdd8c. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
RE: [PATCH] PCI: Do not enable async suspend for JMicron chips
Hello Bjorn, > -Original Message- > From: Bjorn Helgaas [mailto:bhelg...@google.com] > Sent: Thursday, November 06, 2014 3:04 AM > To: Barto > Cc: Liu, Chuansheng; Lu, Aaron; Tejun Heo; Rafael Wysocki; > linux-...@vger.kernel.org; linux-kernel@vger.kernel.org > Subject: Re: [PATCH] PCI: Do not enable async suspend for JMicron chips > > On Wed, Nov 5, 2014 at 11:46 AM, Barto > wrote: > > this patch solves these 2 bug reports : > > > > https://bugzilla.kernel.org/show_bug.cgi?id=84861 > > > > https://bugzilla.kernel.org/show_bug.cgi?id=81551 > > Those bugs were already mentioned. But e6b7e41cdd8c claims to solve > https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a > duplicate of 81551, so it should also be fixed by e6b7e41cdd8c. > > So the question is, why was e6b7e41cdd8c insufficient? Presumably it > was tested and somebody thought it did fix the problem. The first patch e6b7e41cdd8c which is just exclude some of JMicron chips(363/361) out of async_suspend, then Barto found the same issue on JMicron 368, so we need one more general patch to let JMicron chips out of async_suspend, so we make this patch. Bjorn, tj, Could you kindly take this patch? As Barto said, it effected the user experience indeed, thanks.
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
Bjorn : the patch initialy created for bug 81551 ( ATAPI-CD-ROM-drive
dead after resume from suspend/s2disk ) was not enough for the bug 84861
( JMicron Technology Corp. JMB368 IDE controller dead after resume when
async suspend is enabled ),
the reason : there are too much models inside the family of JMBxxx
JMicron SATA/IDE controlers PCI cards, and the first patch targets ONLY
the JMB363/361 model, which is not enough :
if (pdev->vendor == PCI_VENDOR_ID_JMICRON &&
+ (pdev->device == PCI_DEVICE_ID_JMICRON_JMB363 ||
+ pdev->device == PCI_DEVICE_ID_JMICRON_JMB361))
+ device_disable_async_suspend(&pdev->dev);
for example I have a JMB363/368 JMicron SATA/IDE PCI card, and the first
patch created for the bug 81551 is not enough, that's why Chuansheng Liu
created a new patch who targets ALL models of JMicron JMBxxx SATA/IDE
cards, in order to be sure that these models of JMicron will have
"async_suspend feature disabled,
the good patch who works for all models of JMicron JMBxx SATA/IDE
controlers :
+ if (dev->vendor != PCI_VENDOR_ID_JMICRON)
+ device_enable_async_suspend(&dev->dev);
dev->wakeup_prepared = false;
Le 05/11/2014 20:03, Bjorn Helgaas a écrit :
> On Wed, Nov 5, 2014 at 11:46 AM, Barto wrote:
>> this patch solves these 2 bug reports :
>>
>> https://bugzilla.kernel.org/show_bug.cgi?id=
>>
>> https://bugzilla.kernel.org/show_bug.cgi?id=81551
>
> Those bugs were already mentioned. But e6b7e41cdd8c claims to solve
> https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a
> duplicate of 81551, so it should also be fixed by e6b7e41cdd8c.
>
> So the question is, why was e6b7e41cdd8c insufficient? Presumably it
> was tested and somebody thought it did fix the problem.
>
>> in simple words : JMicron IDE/Sata controlers family ( JMBxxx ) are not
>> fully compatible with async_suspend feature, when a user tries to put
>> his PC on standby mode then at wake-up JMicron IDE/Sata controlers will
>> not work, because of a brother-relation between the SATA and IDE part on
>> this JMicron PCI card
>>
>>
>>
>>
>> Le 05/11/2014 19:01, Bjorn Helgaas a écrit :
>>> On Tue, Nov 4, 2014 at 6:31 PM, Chuansheng Liu
>>> wrote:
The JMicron chip 361/363/368 contains one SATA controller and
one PATA controller, they are brother-relation ship in PCI tree,
but for powering on these both controller, we must follow the
sequence one by one, otherwise one of them can not be powered on
successfully.
>>>
>>> This should mention what's broken and what problem a user would see.
>>> This changelog sounds a lot like the one for e6b7e41cdd8c, so I don't
>>> know if this is for a new, related problem, or what.
>>>
So here we disable the async suspend method for Jmicron chip.
Bug link:
https://bugzilla.kernel.org/show_bug.cgi?id=81551
https://bugzilla.kernel.org/show_bug.cgi?id=84861
And we can revert the below commit after this patch is applied:
e6b7e41(ata: Disabling the async PM for JMicron chip 363/361)
Cc: sta...@vger.kernel.org # 3.15+
Acked-by: Aaron Lu
Signed-off-by: Chuansheng Liu
---
drivers/pci/pci.c | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 625a4ac..53128f0 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev)
pm_runtime_forbid(&dev->dev);
pm_runtime_set_active(&dev->dev);
pm_runtime_enable(&dev->dev);
- device_enable_async_suspend(&dev->dev);
+
+ /*
+* The JMicron chip 361/363/368 contains one SATA controller and
+* one PATA controller, they are brother-relation ship in PCI tree,
+* but for powering on these both controller, we must follow the
+* sequence one by one, otherwise one of them can not be powered on
+* successfully, so here we disable the async suspend method for
+* Jmicron chip.
+*/
+ if (dev->vendor != PCI_VENDOR_ID_JMICRON)
+ device_enable_async_suspend(&dev->dev);
>>>
>>> I don't like littering the core PCI code with vendor tests like this.
>>> This would be the only one, except for an ancient DECchip 21050 bridge
>>> erratum.
>>>
>>> And why would we want a test for *all* JMicron devices here, when you
>>> claim the problem only affects a few specific ones?
>>>
>>> And what's the story with the e6b7e41cdd8c ("ata: Disabling the async
>>> PM for JMicron chip 363/361") connection? Is something broken even
>>> with e6b7e41cdd8c, and this is a better fix? Or is this simply a
>>> different way of fixing the same problem?
>>>
dev->wakeup_prepared = false;
dev->pm_cap = 0;
--
1.7.9.5
>>>
>
--
To unsubscribe from this lis
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On Wed, Nov 5, 2014 at 11:46 AM, Barto wrote:
> this patch solves these 2 bug reports :
>
> https://bugzilla.kernel.org/show_bug.cgi?id=84861
>
> https://bugzilla.kernel.org/show_bug.cgi?id=81551
Those bugs were already mentioned. But e6b7e41cdd8c claims to solve
https://bugzilla.kernel.org/show_bug.cgi?id=81551, and 84861 is a
duplicate of 81551, so it should also be fixed by e6b7e41cdd8c.
So the question is, why was e6b7e41cdd8c insufficient? Presumably it
was tested and somebody thought it did fix the problem.
> in simple words : JMicron IDE/Sata controlers family ( JMBxxx ) are not
> fully compatible with async_suspend feature, when a user tries to put
> his PC on standby mode then at wake-up JMicron IDE/Sata controlers will
> not work, because of a brother-relation between the SATA and IDE part on
> this JMicron PCI card
>
>
>
>
> Le 05/11/2014 19:01, Bjorn Helgaas a écrit :
>> On Tue, Nov 4, 2014 at 6:31 PM, Chuansheng Liu
>> wrote:
>>> The JMicron chip 361/363/368 contains one SATA controller and
>>> one PATA controller, they are brother-relation ship in PCI tree,
>>> but for powering on these both controller, we must follow the
>>> sequence one by one, otherwise one of them can not be powered on
>>> successfully.
>>
>> This should mention what's broken and what problem a user would see.
>> This changelog sounds a lot like the one for e6b7e41cdd8c, so I don't
>> know if this is for a new, related problem, or what.
>>
>>> So here we disable the async suspend method for Jmicron chip.
>>>
>>> Bug link:
>>> https://bugzilla.kernel.org/show_bug.cgi?id=81551
>>> https://bugzilla.kernel.org/show_bug.cgi?id=84861
>>>
>>> And we can revert the below commit after this patch is applied:
>>> e6b7e41(ata: Disabling the async PM for JMicron chip 363/361)
>>>
>>> Cc: sta...@vger.kernel.org # 3.15+
>>> Acked-by: Aaron Lu
>>> Signed-off-by: Chuansheng Liu
>>> ---
>>> drivers/pci/pci.c | 12 +++-
>>> 1 file changed, 11 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
>>> index 625a4ac..53128f0 100644
>>> --- a/drivers/pci/pci.c
>>> +++ b/drivers/pci/pci.c
>>> @@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev)
>>> pm_runtime_forbid(&dev->dev);
>>> pm_runtime_set_active(&dev->dev);
>>> pm_runtime_enable(&dev->dev);
>>> - device_enable_async_suspend(&dev->dev);
>>> +
>>> + /*
>>> +* The JMicron chip 361/363/368 contains one SATA controller and
>>> +* one PATA controller, they are brother-relation ship in PCI tree,
>>> +* but for powering on these both controller, we must follow the
>>> +* sequence one by one, otherwise one of them can not be powered on
>>> +* successfully, so here we disable the async suspend method for
>>> +* Jmicron chip.
>>> +*/
>>> + if (dev->vendor != PCI_VENDOR_ID_JMICRON)
>>> + device_enable_async_suspend(&dev->dev);
>>
>> I don't like littering the core PCI code with vendor tests like this.
>> This would be the only one, except for an ancient DECchip 21050 bridge
>> erratum.
>>
>> And why would we want a test for *all* JMicron devices here, when you
>> claim the problem only affects a few specific ones?
>>
>> And what's the story with the e6b7e41cdd8c ("ata: Disabling the async
>> PM for JMicron chip 363/361") connection? Is something broken even
>> with e6b7e41cdd8c, and this is a better fix? Or is this simply a
>> different way of fixing the same problem?
>>
>>> dev->wakeup_prepared = false;
>>>
>>> dev->pm_cap = 0;
>>> --
>>> 1.7.9.5
>>>
>>
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Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
this patch solves these 2 bug reports :
https://bugzilla.kernel.org/show_bug.cgi?id=84861
https://bugzilla.kernel.org/show_bug.cgi?id=81551
in simple words : JMicron IDE/Sata controlers family ( JMBxxx ) are not
fully compatible with async_suspend feature, when a user tries to put
his PC on standby mode then at wake-up JMicron IDE/Sata controlers will
not work, because of a brother-relation between the SATA and IDE part on
this JMicron PCI card
Le 05/11/2014 19:01, Bjorn Helgaas a écrit :
> On Tue, Nov 4, 2014 at 6:31 PM, Chuansheng Liu
> wrote:
>> The JMicron chip 361/363/368 contains one SATA controller and
>> one PATA controller, they are brother-relation ship in PCI tree,
>> but for powering on these both controller, we must follow the
>> sequence one by one, otherwise one of them can not be powered on
>> successfully.
>
> This should mention what's broken and what problem a user would see.
> This changelog sounds a lot like the one for e6b7e41cdd8c, so I don't
> know if this is for a new, related problem, or what.
>
>> So here we disable the async suspend method for Jmicron chip.
>>
>> Bug link:
>> https://bugzilla.kernel.org/show_bug.cgi?id=81551
>> https://bugzilla.kernel.org/show_bug.cgi?id=84861
>>
>> And we can revert the below commit after this patch is applied:
>> e6b7e41(ata: Disabling the async PM for JMicron chip 363/361)
>>
>> Cc: sta...@vger.kernel.org # 3.15+
>> Acked-by: Aaron Lu
>> Signed-off-by: Chuansheng Liu
>> ---
>> drivers/pci/pci.c | 12 +++-
>> 1 file changed, 11 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
>> index 625a4ac..53128f0 100644
>> --- a/drivers/pci/pci.c
>> +++ b/drivers/pci/pci.c
>> @@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev)
>> pm_runtime_forbid(&dev->dev);
>> pm_runtime_set_active(&dev->dev);
>> pm_runtime_enable(&dev->dev);
>> - device_enable_async_suspend(&dev->dev);
>> +
>> + /*
>> +* The JMicron chip 361/363/368 contains one SATA controller and
>> +* one PATA controller, they are brother-relation ship in PCI tree,
>> +* but for powering on these both controller, we must follow the
>> +* sequence one by one, otherwise one of them can not be powered on
>> +* successfully, so here we disable the async suspend method for
>> +* Jmicron chip.
>> +*/
>> + if (dev->vendor != PCI_VENDOR_ID_JMICRON)
>> + device_enable_async_suspend(&dev->dev);
>
> I don't like littering the core PCI code with vendor tests like this.
> This would be the only one, except for an ancient DECchip 21050 bridge
> erratum.
>
> And why would we want a test for *all* JMicron devices here, when you
> claim the problem only affects a few specific ones?
>
> And what's the story with the e6b7e41cdd8c ("ata: Disabling the async
> PM for JMicron chip 363/361") connection? Is something broken even
> with e6b7e41cdd8c, and this is a better fix? Or is this simply a
> different way of fixing the same problem?
>
>> dev->wakeup_prepared = false;
>>
>> dev->pm_cap = 0;
>> --
>> 1.7.9.5
>>
>
--
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Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On Wed, Nov 05, 2014 at 11:31:59AM -0500, Tejun Heo wrote: > On Wed, Nov 05, 2014 at 09:07:45AM +0800, Chuansheng Liu wrote: > > The JMicron chip 361/363/368 contains one SATA controller and > > one PATA controller, they are brother-relation ship in PCI tree, > > but for powering on these both controller, we must follow the > > sequence one by one, otherwise one of them can not be powered on > > successfully. > > > > So here we disable the async suspend method for Jmicron chip. > > > > Cc: sta...@vger.kernel.org # 3.15+ > > Signed-off-by: Chuansheng Liu > > Applied to libata/for-3.18-fixes. Ah, this is a PCI patch. Popping from libata tree. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On Tue, Nov 4, 2014 at 6:31 PM, Chuansheng Liu wrote:
> The JMicron chip 361/363/368 contains one SATA controller and
> one PATA controller, they are brother-relation ship in PCI tree,
> but for powering on these both controller, we must follow the
> sequence one by one, otherwise one of them can not be powered on
> successfully.
This should mention what's broken and what problem a user would see.
This changelog sounds a lot like the one for e6b7e41cdd8c, so I don't
know if this is for a new, related problem, or what.
> So here we disable the async suspend method for Jmicron chip.
>
> Bug link:
> https://bugzilla.kernel.org/show_bug.cgi?id=81551
> https://bugzilla.kernel.org/show_bug.cgi?id=84861
>
> And we can revert the below commit after this patch is applied:
> e6b7e41(ata: Disabling the async PM for JMicron chip 363/361)
>
> Cc: sta...@vger.kernel.org # 3.15+
> Acked-by: Aaron Lu
> Signed-off-by: Chuansheng Liu
> ---
> drivers/pci/pci.c | 12 +++-
> 1 file changed, 11 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
> index 625a4ac..53128f0 100644
> --- a/drivers/pci/pci.c
> +++ b/drivers/pci/pci.c
> @@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev)
> pm_runtime_forbid(&dev->dev);
> pm_runtime_set_active(&dev->dev);
> pm_runtime_enable(&dev->dev);
> - device_enable_async_suspend(&dev->dev);
> +
> + /*
> +* The JMicron chip 361/363/368 contains one SATA controller and
> +* one PATA controller, they are brother-relation ship in PCI tree,
> +* but for powering on these both controller, we must follow the
> +* sequence one by one, otherwise one of them can not be powered on
> +* successfully, so here we disable the async suspend method for
> +* Jmicron chip.
> +*/
> + if (dev->vendor != PCI_VENDOR_ID_JMICRON)
> + device_enable_async_suspend(&dev->dev);
I don't like littering the core PCI code with vendor tests like this.
This would be the only one, except for an ancient DECchip 21050 bridge
erratum.
And why would we want a test for *all* JMicron devices here, when you
claim the problem only affects a few specific ones?
And what's the story with the e6b7e41cdd8c ("ata: Disabling the async
PM for JMicron chip 363/361") connection? Is something broken even
with e6b7e41cdd8c, and this is a better fix? Or is this simply a
different way of fixing the same problem?
> dev->wakeup_prepared = false;
>
> dev->pm_cap = 0;
> --
> 1.7.9.5
>
--
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Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
I tried the patch, it solves the problem, but I had to change the patch in order to be compatible with 3.18rc3 source code : patching file drivers/pci/pci.c Hunk #1 FAILED at 2046. 1 out of 1 hunk FAILED -- saving rejects to file drivers/pci/pci.c.rej here is the correct patch for kernel 3.18rc3 source code : diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev) pm_runtime_forbid(&dev->dev); pm_runtime_set_active(&dev->dev); pm_runtime_enable(&dev->dev); - device_enable_async_suspend(&dev->dev); + + /* + * The JMicron chip 361/363/368 contains one SATA controller and + * one PATA controller, they are brother-relation ship in PCI tree, + * but for powering on these both controller, we must follow the + * sequence one by one, otherwise one of them can not be powered on + * successfully, so here we disable the async suspend method for + * Jmicron chip. + */ + if (dev->vendor != PCI_VENDOR_ID_JMICRON) + device_enable_async_suspend(&dev->dev); dev->wakeup_prepared = false; dev->pm_cap = 0; Le 05/11/2014 17:31, Tejun Heo a écrit : > On Wed, Nov 05, 2014 at 09:07:45AM +0800, Chuansheng Liu wrote: >> The JMicron chip 361/363/368 contains one SATA controller and >> one PATA controller, they are brother-relation ship in PCI tree, >> but for powering on these both controller, we must follow the >> sequence one by one, otherwise one of them can not be powered on >> successfully. >> >> So here we disable the async suspend method for Jmicron chip. >> >> Cc: sta...@vger.kernel.org # 3.15+ >> Signed-off-by: Chuansheng Liu > > Applied to libata/for-3.18-fixes. > > Thanks. > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On Wed, Nov 05, 2014 at 09:07:45AM +0800, Chuansheng Liu wrote: > The JMicron chip 361/363/368 contains one SATA controller and > one PATA controller, they are brother-relation ship in PCI tree, > but for powering on these both controller, we must follow the > sequence one by one, otherwise one of them can not be powered on > successfully. > > So here we disable the async suspend method for Jmicron chip. > > Cc: sta...@vger.kernel.org # 3.15+ > Signed-off-by: Chuansheng Liu Applied to libata/for-3.18-fixes. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH] PCI: Do not enable async suspend for JMicron chips
The JMicron chip 361/363/368 contains one SATA controller and one PATA controller, they are brother-relation ship in PCI tree, but for powering on these both controller, we must follow the sequence one by one, otherwise one of them can not be powered on successfully. So here we disable the async suspend method for Jmicron chip. Bug link: https://bugzilla.kernel.org/show_bug.cgi?id=81551 https://bugzilla.kernel.org/show_bug.cgi?id=84861 And we can revert the below commit after this patch is applied: e6b7e41(ata: Disabling the async PM for JMicron chip 363/361) Cc: sta...@vger.kernel.org # 3.15+ Acked-by: Aaron Lu Signed-off-by: Chuansheng Liu --- drivers/pci/pci.c | 12 +++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 625a4ac..53128f0 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev) pm_runtime_forbid(&dev->dev); pm_runtime_set_active(&dev->dev); pm_runtime_enable(&dev->dev); - device_enable_async_suspend(&dev->dev); + + /* +* The JMicron chip 361/363/368 contains one SATA controller and +* one PATA controller, they are brother-relation ship in PCI tree, +* but for powering on these both controller, we must follow the +* sequence one by one, otherwise one of them can not be powered on +* successfully, so here we disable the async suspend method for +* Jmicron chip. +*/ + if (dev->vendor != PCI_VENDOR_ID_JMICRON) + device_enable_async_suspend(&dev->dev); dev->wakeup_prepared = false; dev->pm_cap = 0; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On 11/05/2014 09:33 AM, Aaron Lu wrote: > On 11/05/2014 09:07 AM, Chuansheng Liu wrote: >> The JMicron chip 361/363/368 contains one SATA controller and >> one PATA controller, they are brother-relation ship in PCI tree, >> but for powering on these both controller, we must follow the >> sequence one by one, otherwise one of them can not be powered on >> successfully. >> >> So here we disable the async suspend method for Jmicron chip. >> > > Place the buglink here? > > Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=84861 > Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=81551 >> Cc: sta...@vger.kernel.org # 3.15+ >> Signed-off-by: Chuansheng Liu > > Patch looks good to me, thanks for fixing this! BTW, the previous change to the ATA code can be deleted now. So maybe also put them into this patch. Regards, Aaron >> --- >> drivers/pci/pci.c | 12 +++- >> 1 file changed, 11 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c >> index 625a4ac..53128f0 100644 >> --- a/drivers/pci/pci.c >> +++ b/drivers/pci/pci.c >> @@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev) >> pm_runtime_forbid(&dev->dev); >> pm_runtime_set_active(&dev->dev); >> pm_runtime_enable(&dev->dev); >> -device_enable_async_suspend(&dev->dev); >> + >> +/* >> + * The JMicron chip 361/363/368 contains one SATA controller and >> + * one PATA controller, they are brother-relation ship in PCI tree, >> + * but for powering on these both controller, we must follow the >> + * sequence one by one, otherwise one of them can not be powered on >> + * successfully, so here we disable the async suspend method for >> + * Jmicron chip. >> + */ >> +if (dev->vendor != PCI_VENDOR_ID_JMICRON) >> +device_enable_async_suspend(&dev->dev); >> dev->wakeup_prepared = false; >> >> dev->pm_cap = 0; >> > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] PCI: Do not enable async suspend for JMicron chips
On 11/05/2014 09:07 AM, Chuansheng Liu wrote: > The JMicron chip 361/363/368 contains one SATA controller and > one PATA controller, they are brother-relation ship in PCI tree, > but for powering on these both controller, we must follow the > sequence one by one, otherwise one of them can not be powered on > successfully. > > So here we disable the async suspend method for Jmicron chip. > Place the buglink here? Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=84861 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=81551 > Cc: sta...@vger.kernel.org # 3.15+ > Signed-off-by: Chuansheng Liu Patch looks good to me, thanks for fixing this! -Aaron > --- > drivers/pci/pci.c | 12 +++- > 1 file changed, 11 insertions(+), 1 deletion(-) > > diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c > index 625a4ac..53128f0 100644 > --- a/drivers/pci/pci.c > +++ b/drivers/pci/pci.c > @@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev) > pm_runtime_forbid(&dev->dev); > pm_runtime_set_active(&dev->dev); > pm_runtime_enable(&dev->dev); > - device_enable_async_suspend(&dev->dev); > + > + /* > + * The JMicron chip 361/363/368 contains one SATA controller and > + * one PATA controller, they are brother-relation ship in PCI tree, > + * but for powering on these both controller, we must follow the > + * sequence one by one, otherwise one of them can not be powered on > + * successfully, so here we disable the async suspend method for > + * Jmicron chip. > + */ > + if (dev->vendor != PCI_VENDOR_ID_JMICRON) > + device_enable_async_suspend(&dev->dev); > dev->wakeup_prepared = false; > > dev->pm_cap = 0; > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH] PCI: Do not enable async suspend for JMicron chips
The JMicron chip 361/363/368 contains one SATA controller and one PATA controller, they are brother-relation ship in PCI tree, but for powering on these both controller, we must follow the sequence one by one, otherwise one of them can not be powered on successfully. So here we disable the async suspend method for Jmicron chip. Cc: sta...@vger.kernel.org # 3.15+ Signed-off-by: Chuansheng Liu --- drivers/pci/pci.c | 12 +++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 625a4ac..53128f0 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2046,7 +2046,17 @@ void pci_pm_init(struct pci_dev *dev) pm_runtime_forbid(&dev->dev); pm_runtime_set_active(&dev->dev); pm_runtime_enable(&dev->dev); - device_enable_async_suspend(&dev->dev); + + /* +* The JMicron chip 361/363/368 contains one SATA controller and +* one PATA controller, they are brother-relation ship in PCI tree, +* but for powering on these both controller, we must follow the +* sequence one by one, otherwise one of them can not be powered on +* successfully, so here we disable the async suspend method for +* Jmicron chip. +*/ + if (dev->vendor != PCI_VENDOR_ID_JMICRON) + device_enable_async_suspend(&dev->dev); dev->wakeup_prepared = false; dev->pm_cap = 0; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
