[PATCH v1 0/2] usb: misc: onboard-hub: add support for Microchip USB5744

[PATCH v1 0/2] usb: misc: onboard-hub: add support for Microchip USB5744

[Francesco Dolcini]

From: Francesco Dolcini <francesco.dolcini@toradex.com>

Add support for the Microchip USB5744 USB3.0 and USB2.0 Hub.

Stefan Eichenberger (2):
  dt-bindings: usb: microchip,usb5744: Add second supply
  usb: misc: onboard-hub: add support for Microchip USB5744

 .../devicetree/bindings/usb/microchip,usb5744.yaml         | 7 ++++++-
 drivers/usb/misc/onboard_usb_hub.c                         | 2 ++
 drivers/usb/misc/onboard_usb_hub.h                         | 7 +++++++
 3 files changed, 15 insertions(+), 1 deletion(-)

-- 
2.25.1

[PATCH v1 1/2] dt-bindings: usb: microchip,usb5744: Add second supply

[Francesco Dolcini]

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

The USB5744 has two power supplies one for 3V3 and one for 1V2. Add the
second supply to the USB5744 DT binding.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 .../devicetree/bindings/usb/microchip,usb5744.yaml         | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
index ff3a1707ef57..6d4cfd943f58 100644
--- a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
+++ b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
@@ -36,7 +36,11 @@ properties:
 
   vdd-supply:
     description:
-      VDD power supply to the hub
+      3V3 power supply to the hub
+
+  vdd2-supply:
+    description:
+      1V2 power supply to the hub
 
   peer-hub:
     $ref: /schemas/types.yaml#/definitions/phandle
@@ -62,6 +66,7 @@ allOf:
       properties:
         reset-gpios: false
         vdd-supply: false
+        vdd2-supply: false
         peer-hub: false
         i2c-bus: false
     else:
-- 
2.25.1

[PATCH v1 2/2] usb: misc: onboard-hub: add support for Microchip USB5744

[Francesco Dolcini]

From: Stefan Eichenberger <stefan.eichenberger@toradex.com>

Add support for the Microchip USB5744 USB3.0 and USB2.0 Hub.

The Microchip USB5744 supports two power supplies, one for 1V2 and one
for 3V3. According to the datasheet there is no need for a delay between
power on and reset, so this value is set to 0.

Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
 drivers/usb/misc/onboard_usb_hub.c | 2 ++
 drivers/usb/misc/onboard_usb_hub.h | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c
index a341b2fbb7b4..2b45404e9732 100644
--- a/drivers/usb/misc/onboard_usb_hub.c
+++ b/drivers/usb/misc/onboard_usb_hub.c
@@ -432,6 +432,8 @@ static const struct usb_device_id onboard_hub_id_table[] = {
 	{ USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2412) }, /* USB2412 USB 2.0 */
 	{ USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2514) }, /* USB2514B USB 2.0 */
 	{ USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2517) }, /* USB2517 USB 2.0 */
+	{ USB_DEVICE(VENDOR_ID_MICROCHIP, 0x2744) }, /* USB5744 USB 2.0 */
+	{ USB_DEVICE(VENDOR_ID_MICROCHIP, 0x5744) }, /* USB5744 USB 3.0 */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0411) }, /* RTS5411 USB 3.1 */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x5411) }, /* RTS5411 USB 2.1 */
 	{ USB_DEVICE(VENDOR_ID_REALTEK, 0x0414) }, /* RTS5414 USB 3.2 */
diff --git a/drivers/usb/misc/onboard_usb_hub.h b/drivers/usb/misc/onboard_usb_hub.h
index c4e24a7b9290..292110e64a1d 100644
--- a/drivers/usb/misc/onboard_usb_hub.h
+++ b/drivers/usb/misc/onboard_usb_hub.h
@@ -16,6 +16,11 @@ static const struct onboard_hub_pdata microchip_usb424_data = {
 	.num_supplies = 1,
 };
 
+static const struct onboard_hub_pdata microchip_usb5744_data = {
+	.reset_us = 0,
+	.num_supplies = 2,
+};
+
 static const struct onboard_hub_pdata realtek_rts5411_data = {
 	.reset_us = 0,
 	.num_supplies = 1,
@@ -50,6 +55,8 @@ static const struct of_device_id onboard_hub_match[] = {
 	{ .compatible = "usb424,2412", .data = &microchip_usb424_data, },
 	{ .compatible = "usb424,2514", .data = &microchip_usb424_data, },
 	{ .compatible = "usb424,2517", .data = &microchip_usb424_data, },
+	{ .compatible = "usb424,2744", .data = &microchip_usb5744_data, },
+	{ .compatible = "usb424,5744", .data = &microchip_usb5744_data, },
 	{ .compatible = "usb451,8140", .data = &ti_tusb8041_data, },
 	{ .compatible = "usb451,8142", .data = &ti_tusb8041_data, },
 	{ .compatible = "usb4b4,6504", .data = &cypress_hx3_data, },
-- 
2.25.1

Re: [PATCH v1 1/2] dt-bindings: usb: microchip,usb5744: Add second supply

[Conor Dooley]

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On Mon, Nov 13, 2023 at 03:59:20PM +0100, Francesco Dolcini wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> The USB5744 has two power supplies one for 3V3 and one for 1V2. Add the
> second supply to the USB5744 DT binding.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
> ---
>  .../devicetree/bindings/usb/microchip,usb5744.yaml         | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> index ff3a1707ef57..6d4cfd943f58 100644
> --- a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> +++ b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> @@ -36,7 +36,11 @@ properties:
>  
>    vdd-supply:
>      description:
> -      VDD power supply to the hub
> +      3V3 power supply to the hub
> +
> +  vdd2-supply:
> +    description:
> +      1V2 power supply to the hub

How about v1p2-supply?

>  
>    peer-hub:
>      $ref: /schemas/types.yaml#/definitions/phandle
> @@ -62,6 +66,7 @@ allOf:
>        properties:
>          reset-gpios: false
>          vdd-supply: false
> +        vdd2-supply: false
>          peer-hub: false
>          i2c-bus: false
>      else:
> -- 
> 2.25.1
> 

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Re: [PATCH v1 1/2] dt-bindings: usb: microchip,usb5744: Add second supply

[Francesco Dolcini]

Hello Conor,
thanks for the review.

On Mon, Nov 13, 2023 at 07:55:20PM +0000, Conor Dooley wrote:
> On Mon, Nov 13, 2023 at 03:59:20PM +0100, Francesco Dolcini wrote:
> > From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > 
> > The USB5744 has two power supplies one for 3V3 and one for 1V2. Add the
> > second supply to the USB5744 DT binding.
> > 
> > Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
> > ---
> >  .../devicetree/bindings/usb/microchip,usb5744.yaml         | 7 ++++++-
> >  1 file changed, 6 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> > index ff3a1707ef57..6d4cfd943f58 100644
> > --- a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> > +++ b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> > @@ -36,7 +36,11 @@ properties:
> >  
> >    vdd-supply:
> >      description:
> > -      VDD power supply to the hub
> > +      3V3 power supply to the hub
> > +
> > +  vdd2-supply:
> > +    description:
> > +      1V2 power supply to the hub
> 
> How about v1p2-supply?

The reason for vdd2 is this

/*
 * Use generic names, as the actual names might differ between hubs. If a new
 * hub requires more than the currently supported supplies, add a new one here.
 */
static const char * const supply_names[] = {
	"vdd",
	"vdd2",
};

from drivers/usb/misc/onboard_usb_hub.c.

Francesco

Re: [PATCH v1 1/2] dt-bindings: usb: microchip,usb5744: Add second supply

[Conor Dooley]

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On Mon, Nov 13, 2023 at 09:08:10PM +0100, Francesco Dolcini wrote:
> Hello Conor,
> thanks for the review.
> 
> On Mon, Nov 13, 2023 at 07:55:20PM +0000, Conor Dooley wrote:
> > On Mon, Nov 13, 2023 at 03:59:20PM +0100, Francesco Dolcini wrote:
> > > From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > > 
> > > The USB5744 has two power supplies one for 3V3 and one for 1V2. Add the
> > > second supply to the USB5744 DT binding.
> > > 
> > > Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> > > Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
> > > ---
> > >  .../devicetree/bindings/usb/microchip,usb5744.yaml         | 7 ++++++-
> > >  1 file changed, 6 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> > > index ff3a1707ef57..6d4cfd943f58 100644
> > > --- a/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> > > +++ b/Documentation/devicetree/bindings/usb/microchip,usb5744.yaml
> > > @@ -36,7 +36,11 @@ properties:
> > >  
> > >    vdd-supply:
> > >      description:
> > > -      VDD power supply to the hub
> > > +      3V3 power supply to the hub
> > > +
> > > +  vdd2-supply:
> > > +    description:
> > > +      1V2 power supply to the hub
> > 
> > How about v1p2-supply?
> 
> The reason for vdd2 is this

I see.
Acked-by: Conor Dooley <conor.dooley@microchip.com>

Cheers,
Conor.

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Re: [PATCH v1 2/2] usb: misc: onboard-hub: add support for Microchip USB5744

[Michal Simek]

On 11/13/23 15:59, Francesco Dolcini wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> Add support for the Microchip USB5744 USB3.0 and USB2.0 Hub.
> 
> The Microchip USB5744 supports two power supplies, one for 1V2 and one
> for 3V3. According to the datasheet there is no need for a delay between
> power on and reset, so this value is set to 0.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>

The patch is correct based on functionality you want to add. Would be good to 
also add support for initialization over i2c which will change couple of things.

Thanks,
Michal

Re: [PATCH v1 2/2] usb: misc: onboard-hub: add support for Microchip USB5744

[Matthias Kaehlcke]

On Mon, Nov 13, 2023 at 03:59:21PM +0100, Francesco Dolcini wrote:
> From: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> 
> Add support for the Microchip USB5744 USB3.0 and USB2.0 Hub.
> 
> The Microchip USB5744 supports two power supplies, one for 1V2 and one
> for 3V3. According to the datasheet there is no need for a delay between
> power on and reset, so this value is set to 0.
> 
> Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>

Acked-by: Matthias Kaehlcke <mka@chromium.org>