diff mbox series

[19/22] soc: sunxi: mbus: Add A31 ISP compatibles to the list

Message ID 20210910184147.336618-20-paul.kocialkowski@bootlin.com (mailing list archive)
State Not Applicable, archived
Headers show
Series Allwinner A31/A83T MIPI CSI-2 Support and A31 ISP Support | expand

Commit Message

Paul Kocialkowski Sept. 10, 2021, 6:41 p.m. UTC
The A31 ISP sits on the mbus and requires the usual bus address
adaptation. Add its compatibles to the list.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
 drivers/soc/sunxi/sunxi_mbus.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Samuel Holland Sept. 11, 2021, 2:36 a.m. UTC | #1
On 9/10/21 1:41 PM, Paul Kocialkowski wrote:
> The A31 ISP sits on the mbus and requires the usual bus address
> adaptation. Add its compatibles to the list.

My understanding is that this driver only exists to work around old DT
bindings where the interconnects/interconnect-names = "dma-mem"
properties are not required (and so they are historically missing from
the device trees).

For new bindings, it would be better to use those properties and not add
to this list.

Regards,
Samuel

> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> ---
>  drivers/soc/sunxi/sunxi_mbus.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/soc/sunxi/sunxi_mbus.c b/drivers/soc/sunxi/sunxi_mbus.c
> index d90e4a264b6f..7f0079ea30b1 100644
> --- a/drivers/soc/sunxi/sunxi_mbus.c
> +++ b/drivers/soc/sunxi/sunxi_mbus.c
> @@ -37,6 +37,7 @@ static const char * const sunxi_mbus_devices[] = {
>  	"allwinner,sun5i-a13-video-engine",
>  	"allwinner,sun6i-a31-csi",
>  	"allwinner,sun6i-a31-display-backend",
> +	"allwinner,sun6i-a31-isp",
>  	"allwinner,sun7i-a20-csi0",
>  	"allwinner,sun7i-a20-display-backend",
>  	"allwinner,sun7i-a20-display-frontend",
> @@ -50,6 +51,7 @@ static const char * const sunxi_mbus_devices[] = {
>  	"allwinner,sun8i-h3-csi",
>  	"allwinner,sun8i-h3-video-engine",
>  	"allwinner,sun8i-v3s-csi",
> +	"allwinner,sun8i-v3s-isp",
>  	"allwinner,sun9i-a80-display-backend",
>  	"allwinner,sun50i-a64-csi",
>  	"allwinner,sun50i-a64-video-engine",
>
Paul Kocialkowski Sept. 13, 2021, 7:45 a.m. UTC | #2
Hi Samuel,

On Fri 10 Sep 21, 21:36, Samuel Holland wrote:
> On 9/10/21 1:41 PM, Paul Kocialkowski wrote:
> > The A31 ISP sits on the mbus and requires the usual bus address
> > adaptation. Add its compatibles to the list.
> 
> My understanding is that this driver only exists to work around old DT
> bindings where the interconnects/interconnect-names = "dma-mem"
> properties are not required (and so they are historically missing from
> the device trees).
> 
> For new bindings, it would be better to use those properties and not add
> to this list.

Oh okay, I didn't really look into it and just did the same thing that was
done for the CSI controller. Thanks for the heads up!

Paul

> Regards,
> Samuel
> 
> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> > ---
> >  drivers/soc/sunxi/sunxi_mbus.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/soc/sunxi/sunxi_mbus.c b/drivers/soc/sunxi/sunxi_mbus.c
> > index d90e4a264b6f..7f0079ea30b1 100644
> > --- a/drivers/soc/sunxi/sunxi_mbus.c
> > +++ b/drivers/soc/sunxi/sunxi_mbus.c
> > @@ -37,6 +37,7 @@ static const char * const sunxi_mbus_devices[] = {
> >  	"allwinner,sun5i-a13-video-engine",
> >  	"allwinner,sun6i-a31-csi",
> >  	"allwinner,sun6i-a31-display-backend",
> > +	"allwinner,sun6i-a31-isp",
> >  	"allwinner,sun7i-a20-csi0",
> >  	"allwinner,sun7i-a20-display-backend",
> >  	"allwinner,sun7i-a20-display-frontend",
> > @@ -50,6 +51,7 @@ static const char * const sunxi_mbus_devices[] = {
> >  	"allwinner,sun8i-h3-csi",
> >  	"allwinner,sun8i-h3-video-engine",
> >  	"allwinner,sun8i-v3s-csi",
> > +	"allwinner,sun8i-v3s-isp",
> >  	"allwinner,sun9i-a80-display-backend",
> >  	"allwinner,sun50i-a64-csi",
> >  	"allwinner,sun50i-a64-video-engine",
> > 
>
Maxime Ripard Sept. 13, 2021, 8:32 a.m. UTC | #3
On Mon, Sep 13, 2021 at 09:45:22AM +0200, Paul Kocialkowski wrote:
> Hi Samuel,
> 
> On Fri 10 Sep 21, 21:36, Samuel Holland wrote:
> > On 9/10/21 1:41 PM, Paul Kocialkowski wrote:
> > > The A31 ISP sits on the mbus and requires the usual bus address
> > > adaptation. Add its compatibles to the list.
> > 
> > My understanding is that this driver only exists to work around old DT
> > bindings where the interconnects/interconnect-names = "dma-mem"
> > properties are not required (and so they are historically missing from
> > the device trees).
> > 
> > For new bindings, it would be better to use those properties and not add
> > to this list.
> 
> Oh okay, I didn't really look into it and just did the same thing that was
> done for the CSI controller. Thanks for the heads up!

This code was done to maintain backward compatibility. New DT should
indeed use the interconnects property.

Maxime
diff mbox series

Patch

diff --git a/drivers/soc/sunxi/sunxi_mbus.c b/drivers/soc/sunxi/sunxi_mbus.c
index d90e4a264b6f..7f0079ea30b1 100644
--- a/drivers/soc/sunxi/sunxi_mbus.c
+++ b/drivers/soc/sunxi/sunxi_mbus.c
@@ -37,6 +37,7 @@  static const char * const sunxi_mbus_devices[] = {
 	"allwinner,sun5i-a13-video-engine",
 	"allwinner,sun6i-a31-csi",
 	"allwinner,sun6i-a31-display-backend",
+	"allwinner,sun6i-a31-isp",
 	"allwinner,sun7i-a20-csi0",
 	"allwinner,sun7i-a20-display-backend",
 	"allwinner,sun7i-a20-display-frontend",
@@ -50,6 +51,7 @@  static const char * const sunxi_mbus_devices[] = {
 	"allwinner,sun8i-h3-csi",
 	"allwinner,sun8i-h3-video-engine",
 	"allwinner,sun8i-v3s-csi",
+	"allwinner,sun8i-v3s-isp",
 	"allwinner,sun9i-a80-display-backend",
 	"allwinner,sun50i-a64-csi",
 	"allwinner,sun50i-a64-video-engine",