[PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Hans Verkuil]

The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
prevent the CEC framework from retrying the transmit. If the
transmit was successful, then don't set this flag.

Found by running 'cec-compliance -A' on a beaglebone box.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
 drivers/gpu/drm/i2c/tda9950.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
index 5d2f0d548469..4a14fc3b5011 100644
--- a/drivers/gpu/drm/i2c/tda9950.c
+++ b/drivers/gpu/drm/i2c/tda9950.c
@@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
 			break;
 		}
 		/* TDA9950 executes all retries for us */
-		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
+		if (tx_status != CEC_TX_STATUS_OK)
+			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
 		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
 				  nack_cnt, 0, err_cnt);
 		break;
-- 
2.18.0

[PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Hans Verkuil]

The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
prevent the CEC framework from retrying the transmit. If the
transmit was successful, then don't set this flag.

Found by running 'cec-compliance -A' on a beaglebone box.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
 drivers/gpu/drm/i2c/tda9950.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
index 5d2f0d548469..4a14fc3b5011 100644
--- a/drivers/gpu/drm/i2c/tda9950.c
+++ b/drivers/gpu/drm/i2c/tda9950.c
@@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
 			break;
 		}
 		/* TDA9950 executes all retries for us */
-		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
+		if (tx_status != CEC_TX_STATUS_OK)
+			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
 		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
 				  nack_cnt, 0, err_cnt);
 		break;
-- 
2.18.0


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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Hans Verkuil]

Russell (or someone else), can you Ack this patch? I'd like to get this
for 4.20.

Thanks!

	Hans

On 08/27/2018 02:28 PM, Hans Verkuil wrote:
> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> prevent the CEC framework from retrying the transmit. If the
> transmit was successful, then don't set this flag.
> 
> Found by running 'cec-compliance -A' on a beaglebone box.
> 
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
>  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
> index 5d2f0d548469..4a14fc3b5011 100644
> --- a/drivers/gpu/drm/i2c/tda9950.c
> +++ b/drivers/gpu/drm/i2c/tda9950.c
> @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
>  			break;
>  		}
>  		/* TDA9950 executes all retries for us */
> -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> +		if (tx_status != CEC_TX_STATUS_OK)
> +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
>  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
>  				  nack_cnt, 0, err_cnt);
>  		break;
> 

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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Gustavo Padovan]

Hi Hans,

Thanks for the patch.

On Mon, Aug 27, 2018 at 02:28:50PM +0200, Hans Verkuil wrote:
> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> prevent the CEC framework from retrying the transmit. If the
> transmit was successful, then don't set this flag.
> 
> Found by running 'cec-compliance -A' on a beaglebone box.
> 
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
>  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
> index 5d2f0d548469..4a14fc3b5011 100644
> --- a/drivers/gpu/drm/i2c/tda9950.c
> +++ b/drivers/gpu/drm/i2c/tda9950.c
> @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
>  			break;
>  		}
>  		/* TDA9950 executes all retries for us */
> -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> +		if (tx_status != CEC_TX_STATUS_OK)
> +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
>  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
>  				  nack_cnt, 0, err_cnt);
>  		break;

Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>

> -- 
> 2.18.0
> 
> 

Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Gustavo Padovan]

Hi Hans,

Thanks for the patch.

On Mon, Aug 27, 2018 at 02:28:50PM +0200, Hans Verkuil wrote:
> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> prevent the CEC framework from retrying the transmit. If the
> transmit was successful, then don't set this flag.
> 
> Found by running 'cec-compliance -A' on a beaglebone box.
> 
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
>  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
> index 5d2f0d548469..4a14fc3b5011 100644
> --- a/drivers/gpu/drm/i2c/tda9950.c
> +++ b/drivers/gpu/drm/i2c/tda9950.c
> @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
>  			break;
>  		}
>  		/* TDA9950 executes all retries for us */
> -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> +		if (tx_status != CEC_TX_STATUS_OK)
> +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
>  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
>  				  nack_cnt, 0, err_cnt);
>  		break;

Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>

> -- 
> 2.18.0
> 
> 
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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Russell King - ARM Linux]

Hi Hans,

I'll pick it up in due course.

Thanks.

On Tue, Sep 11, 2018 at 08:41:59AM +0200, Hans Verkuil wrote:
> Russell (or someone else), can you Ack this patch? I'd like to get this
> for 4.20.
> 
> Thanks!
> 
> 	Hans
> 
> On 08/27/2018 02:28 PM, Hans Verkuil wrote:
> > The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> > prevent the CEC framework from retrying the transmit. If the
> > transmit was successful, then don't set this flag.
> > 
> > Found by running 'cec-compliance -A' on a beaglebone box.
> > 
> > Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> > ---
> >  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
> > index 5d2f0d548469..4a14fc3b5011 100644
> > --- a/drivers/gpu/drm/i2c/tda9950.c
> > +++ b/drivers/gpu/drm/i2c/tda9950.c
> > @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
> >  			break;
> >  		}
> >  		/* TDA9950 executes all retries for us */
> > -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> > +		if (tx_status != CEC_TX_STATUS_OK)
> > +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> >  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
> >  				  nack_cnt, 0, err_cnt);
> >  		break;
> > 
> 

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 13.8Mbps down 630kbps up
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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Daniel Vetter]

On Thu, Sep 13, 2018 at 10:33:35AM +0100, Russell King - ARM Linux wrote:
> Hi Hans,
> 
> I'll pick it up in due course.
> 
> Thanks.
> 
> On Tue, Sep 11, 2018 at 08:41:59AM +0200, Hans Verkuil wrote:
> > Russell (or someone else), can you Ack this patch? I'd like to get this
> > for 4.20.
> > 
> > Thanks!
> > 
> > 	Hans
> > 
> > On 08/27/2018 02:28 PM, Hans Verkuil wrote:
> > > The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> > > prevent the CEC framework from retrying the transmit. If the
> > > transmit was successful, then don't set this flag.
> > > 
> > > Found by running 'cec-compliance -A' on a beaglebone box.
> > > 
> > > Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

Since the tda driver is now a brideg one, would make sense to maintain it
as part of drm-misc? Hans could push directly then.
-Daniel

> > > ---
> > >  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
> > >  1 file changed, 2 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
> > > index 5d2f0d548469..4a14fc3b5011 100644
> > > --- a/drivers/gpu/drm/i2c/tda9950.c
> > > +++ b/drivers/gpu/drm/i2c/tda9950.c
> > > @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
> > >  			break;
> > >  		}
> > >  		/* TDA9950 executes all retries for us */
> > > -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> > > +		if (tx_status != CEC_TX_STATUS_OK)
> > > +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> > >  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
> > >  				  nack_cnt, 0, err_cnt);
> > >  		break;
> > > 
> > 
> 
> -- 
> RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
> FTTC broadband for 0.8mile line in suburbia: sync at 13.8Mbps down 630kbps up
> According to speedtest.net: 13Mbps down 490kbps up
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Hans Verkuil]

On 09/13/18 15:16, Daniel Vetter wrote:
> On Thu, Sep 13, 2018 at 10:33:35AM +0100, Russell King - ARM Linux wrote:
>> Hi Hans,
>>
>> I'll pick it up in due course.
>>
>> Thanks.
>>
>> On Tue, Sep 11, 2018 at 08:41:59AM +0200, Hans Verkuil wrote:
>>> Russell (or someone else), can you Ack this patch? I'd like to get this
>>> for 4.20.
>>>
>>> Thanks!
>>>
>>> 	Hans
>>>
>>> On 08/27/2018 02:28 PM, Hans Verkuil wrote:
>>>> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
>>>> prevent the CEC framework from retrying the transmit. If the
>>>> transmit was successful, then don't set this flag.
>>>>
>>>> Found by running 'cec-compliance -A' on a beaglebone box.
>>>>
>>>> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> 
> Since the tda driver is now a brideg one, would make sense to maintain it
> as part of drm-misc? Hans could push directly then.

It isn't yet part of drm-misc? It would make sense IMHO.

And 'due course' is too vague since this should be merged for 4.20.
I plan to add BeagleBone Black support soon for 4.20 since the GPIO issues
that blocked supporting that board are close to being resolved. And this
should be fixed before enabling BBB support.

It's an annoying bug that trips up the cec-compliance adapter test.

Regards,

	Hans

> -Daniel
> 
>>>> ---
>>>>  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
>>>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
>>>> index 5d2f0d548469..4a14fc3b5011 100644
>>>> --- a/drivers/gpu/drm/i2c/tda9950.c
>>>> +++ b/drivers/gpu/drm/i2c/tda9950.c
>>>> @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
>>>>  			break;
>>>>  		}
>>>>  		/* TDA9950 executes all retries for us */
>>>> -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
>>>> +		if (tx_status != CEC_TX_STATUS_OK)
>>>> +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
>>>>  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
>>>>  				  nack_cnt, 0, err_cnt);
>>>>  		break;
>>>>
>>>
>>
>> -- 
>> RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
>> FTTC broadband for 0.8mile line in suburbia: sync at 13.8Mbps down 630kbps up
>> According to speedtest.net: 13Mbps down 490kbps up
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
> 

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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Daniel Vetter]

On Thu, Sep 13, 2018 at 03:33:20PM +0200, Hans Verkuil wrote:
> On 09/13/18 15:16, Daniel Vetter wrote:
> > On Thu, Sep 13, 2018 at 10:33:35AM +0100, Russell King - ARM Linux wrote:
> >> Hi Hans,
> >>
> >> I'll pick it up in due course.
> >>
> >> Thanks.
> >>
> >> On Tue, Sep 11, 2018 at 08:41:59AM +0200, Hans Verkuil wrote:
> >>> Russell (or someone else), can you Ack this patch? I'd like to get this
> >>> for 4.20.
> >>>
> >>> Thanks!
> >>>
> >>> 	Hans
> >>>
> >>> On 08/27/2018 02:28 PM, Hans Verkuil wrote:
> >>>> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> >>>> prevent the CEC framework from retrying the transmit. If the
> >>>> transmit was successful, then don't set this flag.
> >>>>
> >>>> Found by running 'cec-compliance -A' on a beaglebone box.
> >>>>
> >>>> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> > 
> > Since the tda driver is now a brideg one, would make sense to maintain it
> > as part of drm-misc? Hans could push directly then.
> 
> It isn't yet part of drm-misc? It would make sense IMHO.

I think not formally, drm/i2c isn't one of the drm-misc areas. But it does
fall under "everything else" exception. And I'd be happy to ack a formal
MAINTAINERS patch (plus maybe even moving it from drm/i2c/ to
drm/bridge/).

> And 'due course' is too vague since this should be merged for 4.20.
> I plan to add BeagleBone Black support soon for 4.20 since the GPIO issues
> that blocked supporting that board are close to being resolved. And this
> should be fixed before enabling BBB support.
> 
> It's an annoying bug that trips up the cec-compliance adapter test.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> for stuffing right away
into drm-misc-next, if that helps.
-Daniel

> 
> Regards,
> 
> 	Hans
> 
> > -Daniel
> > 
> >>>> ---
> >>>>  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
> >>>>  1 file changed, 2 insertions(+), 1 deletion(-)
> >>>>
> >>>> diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
> >>>> index 5d2f0d548469..4a14fc3b5011 100644
> >>>> --- a/drivers/gpu/drm/i2c/tda9950.c
> >>>> +++ b/drivers/gpu/drm/i2c/tda9950.c
> >>>> @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
> >>>>  			break;
> >>>>  		}
> >>>>  		/* TDA9950 executes all retries for us */
> >>>> -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> >>>> +		if (tx_status != CEC_TX_STATUS_OK)
> >>>> +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> >>>>  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
> >>>>  				  nack_cnt, 0, err_cnt);
> >>>>  		break;
> >>>>
> >>>
> >>
> >> -- 
> >> RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
> >> FTTC broadband for 0.8mile line in suburbia: sync at 13.8Mbps down 630kbps up
> >> According to speedtest.net: 13Mbps down 490kbps up
> >> _______________________________________________
> >> dri-devel mailing list
> >> dri-devel@lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/dri-devel
> > 
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Russell King - ARM Linux]

On Thu, Sep 13, 2018 at 03:33:20PM +0200, Hans Verkuil wrote:
> On 09/13/18 15:16, Daniel Vetter wrote:
> > On Thu, Sep 13, 2018 at 10:33:35AM +0100, Russell King - ARM Linux wrote:
> >> Hi Hans,
> >>
> >> I'll pick it up in due course.
> >>
> >> Thanks.
> >>
> >> On Tue, Sep 11, 2018 at 08:41:59AM +0200, Hans Verkuil wrote:
> >>> Russell (or someone else), can you Ack this patch? I'd like to get this
> >>> for 4.20.
> >>>
> >>> Thanks!
> >>>
> >>> 	Hans
> >>>
> >>> On 08/27/2018 02:28 PM, Hans Verkuil wrote:
> >>>> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> >>>> prevent the CEC framework from retrying the transmit. If the
> >>>> transmit was successful, then don't set this flag.
> >>>>
> >>>> Found by running 'cec-compliance -A' on a beaglebone box.
> >>>>
> >>>> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> > 
> > Since the tda driver is now a brideg one, would make sense to maintain it
> > as part of drm-misc? Hans could push directly then.
> 
> It isn't yet part of drm-misc? It would make sense IMHO.
> 
> And 'due course' is too vague since this should be merged for 4.20.

Given that we are at 4.19-rc3, and you are talking about it being merged
during the _next_ merge window, there is plenty of time remaining that
waiting another week or two for me to pick it up is not a problem.

In any case, my plan is to merge it for 4.19 since it appears to be a
bug fix, albiet a minor one.

-- 
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 13.8Mbps down 630kbps up
According to speedtest.net: 13Mbps down 490kbps up
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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Hans Verkuil]

On 09/13/18 15:48, Russell King - ARM Linux wrote:
> On Thu, Sep 13, 2018 at 03:33:20PM +0200, Hans Verkuil wrote:
>> On 09/13/18 15:16, Daniel Vetter wrote:
>>> On Thu, Sep 13, 2018 at 10:33:35AM +0100, Russell King - ARM Linux wrote:
>>>> Hi Hans,
>>>>
>>>> I'll pick it up in due course.
>>>>
>>>> Thanks.
>>>>
>>>> On Tue, Sep 11, 2018 at 08:41:59AM +0200, Hans Verkuil wrote:
>>>>> Russell (or someone else), can you Ack this patch? I'd like to get this
>>>>> for 4.20.
>>>>>
>>>>> Thanks!
>>>>>
>>>>> 	Hans
>>>>>
>>>>> On 08/27/2018 02:28 PM, Hans Verkuil wrote:
>>>>>> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
>>>>>> prevent the CEC framework from retrying the transmit. If the
>>>>>> transmit was successful, then don't set this flag.
>>>>>>
>>>>>> Found by running 'cec-compliance -A' on a beaglebone box.
>>>>>>
>>>>>> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
>>>
>>> Since the tda driver is now a brideg one, would make sense to maintain it
>>> as part of drm-misc? Hans could push directly then.
>>
>> It isn't yet part of drm-misc? It would make sense IMHO.
>>
>> And 'due course' is too vague since this should be merged for 4.20.
> 
> Given that we are at 4.19-rc3, and you are talking about it being merged
> during the _next_ merge window, there is plenty of time remaining that
> waiting another week or two for me to pick it up is not a problem.

No problem, then I leave it to you to pick up.

'due course' can mean anything from tomorrow to next year, so that
didn't help me :-)

> In any case, my plan is to merge it for 4.19 since it appears to be a
> bug fix, albiet a minor one.
> 

It's a bug fix, but nothing in the kernel tree is currently using this
AFAIK. The BBB would be the first to actually activate it. I'm fine with
merging it in 4.19, but it is not strictly necessary.

Regards,

	Hans
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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Daniel Vetter]

Hi Russell,

On Thu, Sep 13, 2018 at 3:48 PM, Russell King - ARM Linux
<linux@armlinux.org.uk> wrote:
> On Thu, Sep 13, 2018 at 03:33:20PM +0200, Hans Verkuil wrote:
>> On 09/13/18 15:16, Daniel Vetter wrote:
>> > On Thu, Sep 13, 2018 at 10:33:35AM +0100, Russell King - ARM Linux wrote:
>> >> Hi Hans,
>> >>
>> >> I'll pick it up in due course.
>> >>
>> >> Thanks.
>> >>
>> >> On Tue, Sep 11, 2018 at 08:41:59AM +0200, Hans Verkuil wrote:
>> >>> Russell (or someone else), can you Ack this patch? I'd like to get this
>> >>> for 4.20.
>> >>>
>> >>> Thanks!
>> >>>
>> >>>   Hans
>> >>>
>> >>> On 08/27/2018 02:28 PM, Hans Verkuil wrote:
>> >>>> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
>> >>>> prevent the CEC framework from retrying the transmit. If the
>> >>>> transmit was successful, then don't set this flag.
>> >>>>
>> >>>> Found by running 'cec-compliance -A' on a beaglebone box.
>> >>>>
>> >>>> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
>> >
>> > Since the tda driver is now a brideg one, would make sense to maintain it
>> > as part of drm-misc? Hans could push directly then.
>>
>> It isn't yet part of drm-misc? It would make sense IMHO.
>>
>> And 'due course' is too vague since this should be merged for 4.20.
>
> Given that we are at 4.19-rc3, and you are talking about it being merged
> during the _next_ merge window, there is plenty of time remaining that
> waiting another week or two for me to pick it up is not a problem.
>
> In any case, my plan is to merge it for 4.19 since it appears to be a
> bug fix, albiet a minor one.

Thanks for handling tdaxxxx.c in an efficient manner.

And to clarify: drm-misc is just an option that's out there, and
you're obviously very much welcome to join (commit rights included
ofc). I do personally think it's great to have an informal group
maintainership like in drm-misc where people can easily jump in&out of
helping out with specific drivers, but it's by no means mandatory.
There's lots of options to effectively and efficiently collaborate.

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Russell King - ARM Linux]

Hi Hans,

Patch merged, thanks.

On Mon, Aug 27, 2018 at 02:28:50PM +0200, Hans Verkuil wrote:
> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> prevent the CEC framework from retrying the transmit. If the
> transmit was successful, then don't set this flag.
> 
> Found by running 'cec-compliance -A' on a beaglebone box.
> 
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
>  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
> index 5d2f0d548469..4a14fc3b5011 100644
> --- a/drivers/gpu/drm/i2c/tda9950.c
> +++ b/drivers/gpu/drm/i2c/tda9950.c
> @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
>  			break;
>  		}
>  		/* TDA9950 executes all retries for us */
> -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> +		if (tx_status != CEC_TX_STATUS_OK)
> +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
>  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
>  				  nack_cnt, 0, err_cnt);
>  		break;
> -- 
> 2.18.0
> 
> 

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Re: [PATCH] drm/i2c/tda9950.c: set MAX_RETRIES for errors only

[Russell King - ARM Linux]

Hi Hans,

Patch merged, thanks.

On Mon, Aug 27, 2018 at 02:28:50PM +0200, Hans Verkuil wrote:
> The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
> prevent the CEC framework from retrying the transmit. If the
> transmit was successful, then don't set this flag.
> 
> Found by running 'cec-compliance -A' on a beaglebone box.
> 
> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
> ---
>  drivers/gpu/drm/i2c/tda9950.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i2c/tda9950.c b/drivers/gpu/drm/i2c/tda9950.c
> index 5d2f0d548469..4a14fc3b5011 100644
> --- a/drivers/gpu/drm/i2c/tda9950.c
> +++ b/drivers/gpu/drm/i2c/tda9950.c
> @@ -191,7 +191,8 @@ static irqreturn_t tda9950_irq(int irq, void *data)
>  			break;
>  		}
>  		/* TDA9950 executes all retries for us */
> -		tx_status |= CEC_TX_STATUS_MAX_RETRIES;
> +		if (tx_status != CEC_TX_STATUS_OK)
> +			tx_status |= CEC_TX_STATUS_MAX_RETRIES;
>  		cec_transmit_done(priv->adap, tx_status, arb_lost_cnt,
>  				  nack_cnt, 0, err_cnt);
>  		break;
> -- 
> 2.18.0
> 
> 

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