Re: [PATCH 4/5] usb: ehci-s5p: Change to use phy provided by the generic phy framework
Hi Kamil,
On Mon, Oct 28, 2013 at 7:23 PM, Kamil Debski wrote:
> Hi Vivek,
>
>> From: Vivek Gautam [mailto:gautamvivek1...@gmail.com]
>> Sent: Saturday, October 26, 2013 11:41 AM
>>
>> Hi Kamil,
>>
>>
>> On Fri, Oct 25, 2013 at 7:45 PM, Kamil Debski
>> wrote:
>> > Change the phy provider used from the old usb phy specific to a new
>> > one using the generic phy framework.
>> >
>> > Signed-off-by: Kamil Debski
>> > Signed-off-by: Kyungmin Park
>> > ---
Similar change for ohci-exynos too ?
>> > drivers/usb/host/ehci-s5p.c | 21 +++--
>> > 1 file changed, 11 insertions(+), 10 deletions(-)
>> >
>> > diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-
>> s5p.c
>> > index 7cc26e6..76606ff 100644
>> > --- a/drivers/usb/host/ehci-s5p.c
>> > +++ b/drivers/usb/host/ehci-s5p.c
>> > @@ -19,6 +19,7 @@
>> > #include
>> > #include
>> > #include
>> > +#include
>> > #include
>> > #include
>> > #include
>> > @@ -45,7 +46,7 @@ static struct hc_driver __read_mostly
>> > s5p_ehci_hc_driver;
>> >
>> > struct s5p_ehci_hcd {
>> > struct clk *clk;
>> > - struct usb_phy *phy;
>> > + struct phy *phy;
>> > struct usb_otg *otg;
This can also be removed.
>> > struct s5p_ehci_platdata *pdata; }; @@ -77,10 +78,11 @@
>> > static int s5p_ehci_probe(struct platform_device *pdev) {
>> > struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
>> > struct s5p_ehci_hcd *s5p_ehci;
>> > + struct phy *phy;
>>
>> just a nit here:
>> Lets keep the pointer to 'phy' and 'phy_name' together ?
>> and move this above phy_name ?
>
> Thanks for pointing this out.
>
>> > struct usb_hcd *hcd;
>> > struct ehci_hcd *ehci;
>> > struct resource *res;
>> > - struct usb_phy *phy;
>> > + const char *phy_name;
>> > int irq;
>> > int err;
>> >
>> > @@ -103,14 +105,14 @@ static int s5p_ehci_probe(struct
>> platform_device *pdev)
>> > return -ENOMEM;
>> > }
>> > s5p_ehci = to_s5p_ehci(hcd);
>> > -
>> > + phy_name = of_get_property(pdev->dev.of_node, "phy-names",
>> NULL);
Sorry one more doubt here :-)
Now that we have HOST, DEVICE, HSIC0, HSIC1 as different PHYs,
and i think EHCI will be the candidate to request HSIC phy too (once
we have HSIC phy
initialization code available for each SoC);
shouldn't we be using of_count_phandle_with_args() to get HOST, and HSIC phys
and then request multiple phys here ?
>> > + phy = devm_phy_get(&pdev->dev, phy_name);
>>
>> Below check for exynos5440 was supposed to skip any request phy.
>> So shouldn't we place above two assignments to the original place where
>> devm_usb_get_phy() was called ?
>> May be i am not getting you intention of changing the place.
>
> Hm... You are right - if we want to leave this check and skip phy request
> for
> 5450 then I should leave the order as it was. And if we want to use the new
> phy driver for 5450 then the check to skip phy requesting should be simply
> removed.
>
>>
>> > if (of_device_is_compatible(pdev->dev.of_node,
>> > "samsung,exynos5440-ehci")) {
>> > s5p_ehci->pdata = &empty_platdata;
>> > goto skip_phy;
>> > }
>> >
>> > - phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
>> > if (IS_ERR(phy)) {
>> > /* Fallback to pdata */
>> > if (!pdata) {
>> > @@ -122,7 +124,6 @@ static int s5p_ehci_probe(struct platform_device
>> *pdev)
>> > }
>> > } else {
>> > s5p_ehci->phy = phy;
>> > - s5p_ehci->otg = phy->otg;
>> > }
>> >
>> > skip_phy:
>> > @@ -166,7 +167,7 @@ skip_phy:
>> > s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
>>
>> Lets remove this line and similar calls to 'set_host()' in the driver,
>> since we don't have s5p_ehci->otg anymore after the same is removed
>> above.
>> Anyways this was helping the old phy-samsung-usb2 driver, and not
>> needed now.
>
> Ok, I will.
>
>>
>> >
>> > if (s5p_ehci->phy)
>> > - usb_phy_init(s5p_ehci->phy);
>> > + phy_power_on(s5p_ehci->phy);
>> > else if (s5p_ehci->pdata->phy_init)
>> > s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
>> >
>> > @@ -188,7 +189,7 @@ skip_phy:
>> >
>> > fail_add_hcd:
>> > if (s5p_ehci->phy)
>> > - usb_phy_shutdown(s5p_ehci->phy);
>> > + phy_power_off(s5p_ehci->phy);
>> > else if (s5p_ehci->pdata->phy_exit)
>> > s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
>> > fail_io:
>> > @@ -209,7 +210,7 @@ static int s5p_ehci_remove(struct platform_device
>> *pdev)
>> > s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
>>
>> ditto
>>
>> >
>> > if (s5p_ehci->phy)
>> > - usb_phy_shutdown(s5p_ehci->phy);
>> > + phy_power_off
RE: [PATCH 4/5] usb: ehci-s5p: Change to use phy provided by the generic phy framework
Hi Vivek,
> From: Vivek Gautam [mailto:gautamvivek1...@gmail.com]
> Sent: Saturday, October 26, 2013 11:41 AM
>
> Hi Kamil,
>
>
> On Fri, Oct 25, 2013 at 7:45 PM, Kamil Debski
> wrote:
> > Change the phy provider used from the old usb phy specific to a new
> > one using the generic phy framework.
> >
> > Signed-off-by: Kamil Debski
> > Signed-off-by: Kyungmin Park
> > ---
> > drivers/usb/host/ehci-s5p.c | 21 +++--
> > 1 file changed, 11 insertions(+), 10 deletions(-)
> >
> > diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-
> s5p.c
> > index 7cc26e6..76606ff 100644
> > --- a/drivers/usb/host/ehci-s5p.c
> > +++ b/drivers/usb/host/ehci-s5p.c
> > @@ -19,6 +19,7 @@
> > #include
> > #include
> > #include
> > +#include
> > #include
> > #include
> > #include
> > @@ -45,7 +46,7 @@ static struct hc_driver __read_mostly
> > s5p_ehci_hc_driver;
> >
> > struct s5p_ehci_hcd {
> > struct clk *clk;
> > - struct usb_phy *phy;
> > + struct phy *phy;
> > struct usb_otg *otg;
> > struct s5p_ehci_platdata *pdata; }; @@ -77,10 +78,11 @@
> > static int s5p_ehci_probe(struct platform_device *pdev) {
> > struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
> > struct s5p_ehci_hcd *s5p_ehci;
> > + struct phy *phy;
>
> just a nit here:
> Lets keep the pointer to 'phy' and 'phy_name' together ?
> and move this above phy_name ?
Thanks for pointing this out.
> > struct usb_hcd *hcd;
> > struct ehci_hcd *ehci;
> > struct resource *res;
> > - struct usb_phy *phy;
> > + const char *phy_name;
> > int irq;
> > int err;
> >
> > @@ -103,14 +105,14 @@ static int s5p_ehci_probe(struct
> platform_device *pdev)
> > return -ENOMEM;
> > }
> > s5p_ehci = to_s5p_ehci(hcd);
> > -
> > + phy_name = of_get_property(pdev->dev.of_node, "phy-names",
> NULL);
> > + phy = devm_phy_get(&pdev->dev, phy_name);
>
> Below check for exynos5440 was supposed to skip any request phy.
> So shouldn't we place above two assignments to the original place where
> devm_usb_get_phy() was called ?
> May be i am not getting you intention of changing the place.
Hm... You are right - if we want to leave this check and skip phy request
for
5450 then I should leave the order as it was. And if we want to use the new
phy driver for 5450 then the check to skip phy requesting should be simply
removed.
>
> > if (of_device_is_compatible(pdev->dev.of_node,
> > "samsung,exynos5440-ehci")) {
> > s5p_ehci->pdata = &empty_platdata;
> > goto skip_phy;
> > }
> >
> > - phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
> > if (IS_ERR(phy)) {
> > /* Fallback to pdata */
> > if (!pdata) {
> > @@ -122,7 +124,6 @@ static int s5p_ehci_probe(struct platform_device
> *pdev)
> > }
> > } else {
> > s5p_ehci->phy = phy;
> > - s5p_ehci->otg = phy->otg;
> > }
> >
> > skip_phy:
> > @@ -166,7 +167,7 @@ skip_phy:
> > s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
>
> Lets remove this line and similar calls to 'set_host()' in the driver,
> since we don't have s5p_ehci->otg anymore after the same is removed
> above.
> Anyways this was helping the old phy-samsung-usb2 driver, and not
> needed now.
Ok, I will.
>
> >
> > if (s5p_ehci->phy)
> > - usb_phy_init(s5p_ehci->phy);
> > + phy_power_on(s5p_ehci->phy);
> > else if (s5p_ehci->pdata->phy_init)
> > s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
> >
> > @@ -188,7 +189,7 @@ skip_phy:
> >
> > fail_add_hcd:
> > if (s5p_ehci->phy)
> > - usb_phy_shutdown(s5p_ehci->phy);
> > + phy_power_off(s5p_ehci->phy);
> > else if (s5p_ehci->pdata->phy_exit)
> > s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
> > fail_io:
> > @@ -209,7 +210,7 @@ static int s5p_ehci_remove(struct platform_device
> *pdev)
> > s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
>
> ditto
>
> >
> > if (s5p_ehci->phy)
> > - usb_phy_shutdown(s5p_ehci->phy);
> > + phy_power_off(s5p_ehci->phy);
> > else if (s5p_ehci->pdata->phy_exit)
> > s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
> >
> > @@ -244,7 +245,7 @@ static int s5p_ehci_suspend(struct device *dev)
> > s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
> ditto
>
> >
> > if (s5p_ehci->phy)
> > - usb_phy_shutdown(s5p_ehci->phy);
> > + phy_power_off(s5p_ehci->phy);
> > else if (s5p_ehci->pdata->phy_exit)
> > s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
> >
> > @@ -265,7 +266,7 @@ static int s5p_ehci_resume(st
RE: [PATCH 4/5] usb: ehci-s5p: Change to use phy provided by the generic phy framework
Hi Jingoo, > From: Jingoo Han [mailto:jg1@samsung.com] > Sent: Saturday, October 26, 2013 3:27 AM > > On Friday, October 25, 2013 11:15 PM, Kamil Debski wrote: > > > > Change the phy provider used from the old usb phy specific to a new > > one using the generic phy framework. > > > > Signed-off-by: Kamil Debski > > Signed-off-by: Kyungmin Park > > --- > > drivers/usb/host/ehci-s5p.c | 21 +++-- > > 1 file changed, 11 insertions(+), 10 deletions(-) > > Hi Kamil Debski, > It looks good. :-) Thank you. > However, could you re-basing against Greg's 'usb-next' branch? > Now, the file name of 'ehci-s5p.c' is renamed to 'ehci-exynos.c'. > Also, 'Generic PHY Framework' was already merged to Greg's 'usb-next' > branch. Thanks for pointing out this. > > Thank you. > > Best regards, > Jingoo Han Best wishes, -- Kamil Debski Samsung R&D Institute Poland -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 4/5] usb: ehci-s5p: Change to use phy provided by the generic phy framework
Hi Kamil,
On Fri, Oct 25, 2013 at 7:45 PM, Kamil Debski wrote:
> Change the phy provider used from the old usb phy specific to a new one
> using the generic phy framework.
>
> Signed-off-by: Kamil Debski
> Signed-off-by: Kyungmin Park
> ---
> drivers/usb/host/ehci-s5p.c | 21 +++--
> 1 file changed, 11 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
> index 7cc26e6..76606ff 100644
> --- a/drivers/usb/host/ehci-s5p.c
> +++ b/drivers/usb/host/ehci-s5p.c
> @@ -19,6 +19,7 @@
> #include
> #include
> #include
> +#include
> #include
> #include
> #include
> @@ -45,7 +46,7 @@ static struct hc_driver __read_mostly s5p_ehci_hc_driver;
>
> struct s5p_ehci_hcd {
> struct clk *clk;
> - struct usb_phy *phy;
> + struct phy *phy;
> struct usb_otg *otg;
> struct s5p_ehci_platdata *pdata;
> };
> @@ -77,10 +78,11 @@ static int s5p_ehci_probe(struct platform_device *pdev)
> {
> struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
> struct s5p_ehci_hcd *s5p_ehci;
> + struct phy *phy;
just a nit here:
Lets keep the pointer to 'phy' and 'phy_name' together ?
and move this above phy_name ?
> struct usb_hcd *hcd;
> struct ehci_hcd *ehci;
> struct resource *res;
> - struct usb_phy *phy;
> + const char *phy_name;
> int irq;
> int err;
>
> @@ -103,14 +105,14 @@ static int s5p_ehci_probe(struct platform_device *pdev)
> return -ENOMEM;
> }
> s5p_ehci = to_s5p_ehci(hcd);
> -
> + phy_name = of_get_property(pdev->dev.of_node, "phy-names", NULL);
> + phy = devm_phy_get(&pdev->dev, phy_name);
Below check for exynos5440 was supposed to skip any request phy.
So shouldn't we place above two assignments to the original place
where devm_usb_get_phy()
was called ?
May be i am not getting you intention of changing the place.
> if (of_device_is_compatible(pdev->dev.of_node,
> "samsung,exynos5440-ehci")) {
> s5p_ehci->pdata = &empty_platdata;
> goto skip_phy;
> }
>
> - phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
> if (IS_ERR(phy)) {
> /* Fallback to pdata */
> if (!pdata) {
> @@ -122,7 +124,6 @@ static int s5p_ehci_probe(struct platform_device *pdev)
> }
> } else {
> s5p_ehci->phy = phy;
> - s5p_ehci->otg = phy->otg;
> }
>
> skip_phy:
> @@ -166,7 +167,7 @@ skip_phy:
> s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
Lets remove this line and similar calls to 'set_host()' in the driver,
since we don't have
s5p_ehci->otg anymore after the same is removed above.
Anyways this was helping the old phy-samsung-usb2 driver, and not needed now.
>
> if (s5p_ehci->phy)
> - usb_phy_init(s5p_ehci->phy);
> + phy_power_on(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_init)
> s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
>
> @@ -188,7 +189,7 @@ skip_phy:
>
> fail_add_hcd:
> if (s5p_ehci->phy)
> - usb_phy_shutdown(s5p_ehci->phy);
> + phy_power_off(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_exit)
> s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
> fail_io:
> @@ -209,7 +210,7 @@ static int s5p_ehci_remove(struct platform_device *pdev)
> s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
ditto
>
> if (s5p_ehci->phy)
> - usb_phy_shutdown(s5p_ehci->phy);
> + phy_power_off(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_exit)
> s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
>
> @@ -244,7 +245,7 @@ static int s5p_ehci_suspend(struct device *dev)
> s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
ditto
>
> if (s5p_ehci->phy)
> - usb_phy_shutdown(s5p_ehci->phy);
> + phy_power_off(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_exit)
> s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
>
> @@ -265,7 +266,7 @@ static int s5p_ehci_resume(struct device *dev)
> s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
ditto
>
> if (s5p_ehci->phy)
> - usb_phy_init(s5p_ehci->phy);
> + phy_power_on(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_init)
> s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
>
[..] Rest looks good. :-)
--
Best Regards
Vivek
--
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Re: [PATCH 4/5] usb: ehci-s5p: Change to use phy provided by the generic phy framework
On Friday, October 25, 2013 11:15 PM, Kamil Debski wrote: > > Change the phy provider used from the old usb phy specific to a new one > using the generic phy framework. > > Signed-off-by: Kamil Debski > Signed-off-by: Kyungmin Park > --- > drivers/usb/host/ehci-s5p.c | 21 +++-- > 1 file changed, 11 insertions(+), 10 deletions(-) Hi Kamil Debski, It looks good. :-) However, could you re-basing against Greg's 'usb-next' branch? Now, the file name of 'ehci-s5p.c' is renamed to 'ehci-exynos.c'. Also, 'Generic PHY Framework' was already merged to Greg's 'usb-next' branch. Thank you. Best regards, Jingoo Han -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH 4/5] usb: ehci-s5p: Change to use phy provided by the generic phy framework
Hi,
On Friday 25 October 2013 07:45 PM, Kamil Debski wrote:
> Change the phy provider used from the old usb phy specific to a new one
> using the generic phy framework.
looks good :-)
Thanks
Kishon
>
> Signed-off-by: Kamil Debski
> Signed-off-by: Kyungmin Park
> ---
> drivers/usb/host/ehci-s5p.c | 21 +++--
> 1 file changed, 11 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
> index 7cc26e6..76606ff 100644
> --- a/drivers/usb/host/ehci-s5p.c
> +++ b/drivers/usb/host/ehci-s5p.c
> @@ -19,6 +19,7 @@
> #include
> #include
> #include
> +#include
> #include
> #include
> #include
> @@ -45,7 +46,7 @@ static struct hc_driver __read_mostly s5p_ehci_hc_driver;
>
> struct s5p_ehci_hcd {
> struct clk *clk;
> - struct usb_phy *phy;
> + struct phy *phy;
> struct usb_otg *otg;
> struct s5p_ehci_platdata *pdata;
> };
> @@ -77,10 +78,11 @@ static int s5p_ehci_probe(struct platform_device *pdev)
> {
> struct s5p_ehci_platdata *pdata = pdev->dev.platform_data;
> struct s5p_ehci_hcd *s5p_ehci;
> + struct phy *phy;
> struct usb_hcd *hcd;
> struct ehci_hcd *ehci;
> struct resource *res;
> - struct usb_phy *phy;
> + const char *phy_name;
> int irq;
> int err;
>
> @@ -103,14 +105,14 @@ static int s5p_ehci_probe(struct platform_device *pdev)
> return -ENOMEM;
> }
> s5p_ehci = to_s5p_ehci(hcd);
> -
> + phy_name = of_get_property(pdev->dev.of_node, "phy-names", NULL);
> + phy = devm_phy_get(&pdev->dev, phy_name);
> if (of_device_is_compatible(pdev->dev.of_node,
> "samsung,exynos5440-ehci")) {
> s5p_ehci->pdata = &empty_platdata;
> goto skip_phy;
> }
>
> - phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
> if (IS_ERR(phy)) {
> /* Fallback to pdata */
> if (!pdata) {
> @@ -122,7 +124,6 @@ static int s5p_ehci_probe(struct platform_device *pdev)
> }
> } else {
> s5p_ehci->phy = phy;
> - s5p_ehci->otg = phy->otg;
> }
>
> skip_phy:
> @@ -166,7 +167,7 @@ skip_phy:
> s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
>
> if (s5p_ehci->phy)
> - usb_phy_init(s5p_ehci->phy);
> + phy_power_on(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_init)
> s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
>
> @@ -188,7 +189,7 @@ skip_phy:
>
> fail_add_hcd:
> if (s5p_ehci->phy)
> - usb_phy_shutdown(s5p_ehci->phy);
> + phy_power_off(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_exit)
> s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
> fail_io:
> @@ -209,7 +210,7 @@ static int s5p_ehci_remove(struct platform_device *pdev)
> s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
>
> if (s5p_ehci->phy)
> - usb_phy_shutdown(s5p_ehci->phy);
> + phy_power_off(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_exit)
> s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
>
> @@ -244,7 +245,7 @@ static int s5p_ehci_suspend(struct device *dev)
> s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
>
> if (s5p_ehci->phy)
> - usb_phy_shutdown(s5p_ehci->phy);
> + phy_power_off(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_exit)
> s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
>
> @@ -265,7 +266,7 @@ static int s5p_ehci_resume(struct device *dev)
> s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
>
> if (s5p_ehci->phy)
> - usb_phy_init(s5p_ehci->phy);
> + phy_power_on(s5p_ehci->phy);
> else if (s5p_ehci->pdata->phy_init)
> s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
>
>
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