diff mbox series

fsl-usb: add need_oc_pp_cycle flag for 85xx also

Message ID 20210507172300.3075939-1-danielwa@cisco.com
State New
Headers show
Series fsl-usb: add need_oc_pp_cycle flag for 85xx also | expand

Commit Message

Daniel Walker (danielwa) May 7, 2021, 5:23 p.m. UTC
From: Gopalakrishnan Santhanam <gsanthan@cisco.com>

Commit e6604a7fd71f9 ("EHCI: Quirk flag for port power handling on overcurrent.")
activated the quirks handling (flag need_oc_pp_cycle) for Freescale 83xx
based boards.
Activate same for 85xx based boards as well.

Cc: xe-linux-external@cisco.com
Signed-off-by: Gopalakrishnan Santhanam <gsanthan@cisco.com>
Signed-off-by: Daniel Walker <danielwa@cisco.com>
---
 drivers/usb/host/ehci-fsl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Alan Stern May 7, 2021, 5:36 p.m. UTC | #1
On Fri, May 07, 2021 at 10:23:00AM -0700, Daniel Walker wrote:
> From: Gopalakrishnan Santhanam <gsanthan@cisco.com>
> 
> Commit e6604a7fd71f9 ("EHCI: Quirk flag for port power handling on overcurrent.")
> activated the quirks handling (flag need_oc_pp_cycle) for Freescale 83xx
> based boards.
> Activate same for 85xx based boards as well.
> 
> Cc: xe-linux-external@cisco.com
> Signed-off-by: Gopalakrishnan Santhanam <gsanthan@cisco.com>
> Signed-off-by: Daniel Walker <danielwa@cisco.com>
> ---
>  drivers/usb/host/ehci-fsl.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
> index 6f7bd6641694..c7d74c1a23f5 100644
> --- a/drivers/usb/host/ehci-fsl.c
> +++ b/drivers/usb/host/ehci-fsl.c
> @@ -387,7 +387,7 @@ static int ehci_fsl_setup(struct usb_hcd *hcd)
>  	/* EHCI registers start at offset 0x100 */
>  	ehci->caps = hcd->regs + 0x100;
>  
> -#ifdef CONFIG_PPC_83xx
> +#if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_85xx)
>  	/*
>  	 * Deal with MPC834X that need port power to be cycled after the power
-------------------------^

Shouldn't this comment be changed as well?

Alan Stern

>  	 * fault condition is removed. Otherwise the state machine does not
> -- 
> 2.25.1
>
Gopalakrishnan Santhanam May 11, 2021, 1:19 p.m. UTC | #2
Hi Alan

Thanks for the review !

Yes we have to change the comment as well.

We will update the comments and resend.

Regards,
Gopal

-----Original Message-----
From: Alan Stern <stern@rowland.harvard.edu> 

Sent: Friday, May 7, 2021 11:07 PM
To: Daniel Walker (danielwa) <danielwa@cisco.com>
Cc: HEMANT RAMDASI (hramdasi) <hramdasi@cisco.com>; Christian Engelmayer <christian.engelmayer@frequentis.com>; Gopalakrishnan Santhanam -X (gsanthan - Altran ACT S.A.S at Cisco) <gsanthan@cisco.com>; xe-linux-external(mailer list) <xe-linux-external@cisco.com>; Greg Kroah-Hartman <gregkh@linuxfoundation.org>; linux-usb@vger.kernel.org; linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fsl-usb: add need_oc_pp_cycle flag for 85xx also

On Fri, May 07, 2021 at 10:23:00AM -0700, Daniel Walker wrote:
> From: Gopalakrishnan Santhanam <gsanthan@cisco.com>

> 

> Commit e6604a7fd71f9 ("EHCI: Quirk flag for port power handling on 

> overcurrent.") activated the quirks handling (flag need_oc_pp_cycle) 

> for Freescale 83xx based boards.

> Activate same for 85xx based boards as well.

> 

> Cc: xe-linux-external@cisco.com

> Signed-off-by: Gopalakrishnan Santhanam <gsanthan@cisco.com>

> Signed-off-by: Daniel Walker <danielwa@cisco.com>

> ---

>  drivers/usb/host/ehci-fsl.c | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

> 

> diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c 

> index 6f7bd6641694..c7d74c1a23f5 100644

> --- a/drivers/usb/host/ehci-fsl.c

> +++ b/drivers/usb/host/ehci-fsl.c

> @@ -387,7 +387,7 @@ static int ehci_fsl_setup(struct usb_hcd *hcd)

>  	/* EHCI registers start at offset 0x100 */

>  	ehci->caps = hcd->regs + 0x100;

>  

> -#ifdef CONFIG_PPC_83xx

> +#if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_85xx)

>  	/*

>  	 * Deal with MPC834X that need port power to be cycled after the 

> power

-------------------------^

Shouldn't this comment be changed as well?

Alan Stern

>  	 * fault condition is removed. Otherwise the state machine does not

> --

> 2.25.1

>
Alan Stern May 13, 2021, 2:42 p.m. UTC | #3
On Thu, May 13, 2021 at 02:02:25PM +0530, Gopalakrishnan Santhanam wrote:
> Commit e6604a7fd71f9 ("EHCI: Quirk flag for port power handling

> on overcurrent.") activated the quirks handling (flag need_oc_pp_cycle)

> for Freescale 83xx based boards.

> Activate same for 85xx based boards as well.

> 

> Cc: xe-linux-external@cisco.com

> Signed-off-by: Gopalakrishnan Santhanam <gsanthan@cisco.com>

> Signed-off-by: Daniel Walker <danielwa@cisco.com>

> ---


Acked-by: Alan Stern <stern@rowland.harvard.edu>


>  drivers/usb/host/ehci-fsl.c | 8 ++++----

>  1 file changed, 4 insertions(+), 4 deletions(-)

> 

> diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c

> index 6f7bd6641694..385be30baad3 100644

> --- a/drivers/usb/host/ehci-fsl.c

> +++ b/drivers/usb/host/ehci-fsl.c

> @@ -387,11 +387,11 @@ static int ehci_fsl_setup(struct usb_hcd *hcd)

>  	/* EHCI registers start at offset 0x100 */

>  	ehci->caps = hcd->regs + 0x100;

>  

> -#ifdef CONFIG_PPC_83xx

> +#if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_85xx)

>  	/*

> -	 * Deal with MPC834X that need port power to be cycled after the power

> -	 * fault condition is removed. Otherwise the state machine does not

> -	 * reflect PORTSC[CSC] correctly.

> +	 * Deal with MPC834X/85XX that need port power to be cycled

> +	 * after the power fault condition is removed. Otherwise the

> +	 * state machine does not reflect PORTSC[CSC] correctly.

>  	 */

>  	ehci->need_oc_pp_cycle = 1;

>  #endif

> -- 

> 2.26.2.Cisco

>
diff mbox series

Patch

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 6f7bd6641694..c7d74c1a23f5 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -387,7 +387,7 @@  static int ehci_fsl_setup(struct usb_hcd *hcd)
 	/* EHCI registers start at offset 0x100 */
 	ehci->caps = hcd->regs + 0x100;
 
-#ifdef CONFIG_PPC_83xx
+#if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_85xx)
 	/*
 	 * Deal with MPC834X that need port power to be cycled after the power
 	 * fault condition is removed. Otherwise the state machine does not