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[PATCH V2] drm: adv7511: Fix low refresh rate register for ADV7533/5

Alexandru Ardelean posted 1 patch 2 years, 6 months ago
There is a newer version of this series
drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
[PATCH V2] drm: adv7511: Fix low refresh rate register for ADV7533/5
Posted by Alexandru Ardelean 2 years, 6 months ago 
From: Bogdan Togorean <bogdan.togorean@analog.com>

For ADV7533 and ADV7535 low refresh rate is selected using
bits [3:2] of 0x4a main register.
So depending on ADV model write 0xfb or 0x4a register.

Fixes: 2437e7cd88e8 ("drm/bridge: adv7533: Initial support for ADV7533")
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
---

Changelog v1 -> v2:
* https://lore.kernel.org/dri-devel/20190716131005.761-1-bogdan.togorean@analog.com/
* added Fixes: tag
* added Reviewed-by: tag for Nuno

 drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index ddceafa7b637..09290a377957 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -786,8 +786,13 @@ static void adv7511_mode_set(struct adv7511 *adv7511,
 	else
 		low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
 
-	regmap_update_bits(adv7511->regmap, 0xfb,
-		0x6, low_refresh_rate << 1);
+	if (adv7511->type == ADV7511)
+		regmap_update_bits(adv7511->regmap, 0xfb,
+			0x6, low_refresh_rate << 1);
+	else
+		regmap_update_bits(adv7511->regmap, 0x4a,
+			0xc, low_refresh_rate << 2);
+
 	regmap_update_bits(adv7511->regmap, 0x17,
 		0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
 
-- 
2.41.0
Re: [PATCH V2] drm: adv7511: Fix low refresh rate register for ADV7533/5
Posted by Nuno Sá 2 years, 6 months ago 
On Tue, 2023-07-18 at 09:28 +0300, Alexandru Ardelean wrote:
> From: Bogdan Togorean <bogdan.togorean@analog.com>
> 
> For ADV7533 and ADV7535 low refresh rate is selected using
> bits [3:2] of 0x4a main register.
> So depending on ADV model write 0xfb or 0x4a register.
> 
> Fixes: 2437e7cd88e8 ("drm/bridge: adv7533: Initial support for ADV7533")
> Reviewed-by: Nuno Sa <nuno.sa@analog.com>
> Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
> ---
> 

It looks like you dropped your S-o-b tag in v2? I guess it was not on purpose :)

- Nuno Sá

> Changelog v1 -> v2:
> *
> https://lore.kernel.org/dri-devel/20190716131005.761-1-bogdan.togorean@analog.com/
> * added Fixes: tag
> * added Reviewed-by: tag for Nuno
> 
>  drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> index ddceafa7b637..09290a377957 100644
> --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> @@ -786,8 +786,13 @@ static void adv7511_mode_set(struct adv7511 *adv7511,
>         else
>                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
>  
> -       regmap_update_bits(adv7511->regmap, 0xfb,
> -               0x6, low_refresh_rate << 1);
> +       if (adv7511->type == ADV7511)
> +               regmap_update_bits(adv7511->regmap, 0xfb,
> +                       0x6, low_refresh_rate << 1);
> +       else
> +               regmap_update_bits(adv7511->regmap, 0x4a,
> +                       0xc, low_refresh_rate << 2);
> +
>         regmap_update_bits(adv7511->regmap, 0x17,
>                 0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
>  
Re: [PATCH V2] drm: adv7511: Fix low refresh rate register for ADV7533/5
Posted by Alexandru Ardelean 2 years, 6 months ago 
On Tue, Jul 18, 2023 at 10:00 AM Nuno Sá <noname.nuno@gmail.com> wrote:
>
> On Tue, 2023-07-18 at 09:28 +0300, Alexandru Ardelean wrote:
> > From: Bogdan Togorean <bogdan.togorean@analog.com>
> >
> > For ADV7533 and ADV7535 low refresh rate is selected using
> > bits [3:2] of 0x4a main register.
> > So depending on ADV model write 0xfb or 0x4a register.
> >
> > Fixes: 2437e7cd88e8 ("drm/bridge: adv7533: Initial support for ADV7533")
> > Reviewed-by: Nuno Sa <nuno.sa@analog.com>
> > Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
> > ---
> >
>
> It looks like you dropped your S-o-b tag in v2? I guess it was not on purpose :)

oops; yes;
will send a V3;

thanks for the notification;

>
> - Nuno Sá
>
> > Changelog v1 -> v2:
> > *
> > https://lore.kernel.org/dri-devel/20190716131005.761-1-bogdan.togorean@analog.com/
> > * added Fixes: tag
> > * added Reviewed-by: tag for Nuno
> >
> >  drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 9 +++++++--
> >  1 file changed, 7 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> > b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> > index ddceafa7b637..09290a377957 100644
> > --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> > +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> > @@ -786,8 +786,13 @@ static void adv7511_mode_set(struct adv7511 *adv7511,
> >         else
> >                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
> >
> > -       regmap_update_bits(adv7511->regmap, 0xfb,
> > -               0x6, low_refresh_rate << 1);
> > +       if (adv7511->type == ADV7511)
> > +               regmap_update_bits(adv7511->regmap, 0xfb,
> > +                       0x6, low_refresh_rate << 1);
> > +       else
> > +               regmap_update_bits(adv7511->regmap, 0x4a,
> > +                       0xc, low_refresh_rate << 2);
> > +
> >         regmap_update_bits(adv7511->regmap, 0x17,
> >                 0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
> >
>

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