[PATCH v2 0/2] Add TI tps6598x DT binding and probe

[PATCH v2 0/2] Add TI tps6598x DT binding and probe

[Bryan O'Donoghue]

V2:
- Put myself down as sole schema maintainer as suggested - Andy
- Fixed whitespace typo - Andy
- Removed ifdef and of_match_ptr() - Andy

V1:
This simple series adds DT binding yaml and a DT lookup table for the
tps6598x.

Its possible to use i2c id_table to match the 'compatible = "ti,tps6598x"
and probe that way, however I think it is worthwhile adding a specific OF
way of doing it and having an accompanying yaml as an example.

Bryan O'Donoghue (2):
  dt-bindings: usb: Add TI tps6598x device tree binding documentation
  usb: typec: tps6598x: Add OF probe binding

 .../devicetree/bindings/usb/ti,tps6598x.yaml  | 64 +++++++++++++++++++
 drivers/usb/typec/tps6598x.c                  |  7 ++
 2 files changed, 71 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/ti,tps6598x.yaml

-- 
2.25.1

[PATCH v2 1/2] dt-bindings: usb: Add TI tps6598x device tree binding documentation

[Bryan O'Donoghue]

Add device tree binding documentation for the Texas Instruments tps6598x
Type-C chip driver.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 .../devicetree/bindings/usb/ti,tps6598x.yaml  | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/ti,tps6598x.yaml

diff --git a/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml b/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
new file mode 100644
index 000000000000..8eaf4b6c4735
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/ti,tps6598x.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Texas Instruments 6598x Type-C Port Switch and Power Delivery controller DT bindings
+
+maintainers:
+  - Bryan O'Donoghue <bryan.odonoghue@linaro.org>
+
+description: |
+  Texas Instruments 6598x Type-C Port Switch and Power Delivery controller
+
+properties:
+  compatible:
+    enum:
+      - ti,tps6598x
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    items:
+      - const: irq
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        tps6598x: tps6598x@38 {
+            compatible = "ti,tps6598x";
+            reg = <0x38>;
+
+            interrupt-parent = <&msmgpio>;
+            interrupts = <107 IRQ_TYPE_LEVEL_LOW>;
+            interrupt-names = "irq";
+
+            pinctrl-names = "default";
+            pinctrl-0 = <&typec_pins>;
+
+            typec_con: connector {
+                compatible = "usb-c-connector";
+                label = "USB-C";
+                port {
+                    typec_ep: endpoint {
+                        remote-endpoint = <&otg_ep>;
+                    };
+                };
+            };
+        };
+    };
+...
-- 
2.25.1

[PATCH v2 2/2] usb: typec: tps6598x: Add OF probe binding

[Bryan O'Donoghue]

Adds a MODULE_DEVICE_TABLE() to allow probing of this driver from a DTS
setting.

Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Gustavo A. R. Silva <garsilva@embeddedor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: linux-usb@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
---
 drivers/usb/typec/tps6598x.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c
index 0698addd1185..defa651282b0 100644
--- a/drivers/usb/typec/tps6598x.c
+++ b/drivers/usb/typec/tps6598x.c
@@ -563,6 +563,12 @@ static int tps6598x_remove(struct i2c_client *client)
 	return 0;
 }
 
+static const struct of_device_id tps6598x_of_match[] = {
+	{ .compatible = "ti,tps6598x", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, tps6598x_of_match);
+
 static const struct i2c_device_id tps6598x_id[] = {
 	{ "tps6598x" },
 	{ }
@@ -572,6 +578,7 @@ MODULE_DEVICE_TABLE(i2c, tps6598x_id);
 static struct i2c_driver tps6598x_i2c_driver = {
 	.driver = {
 		.name = "tps6598x",
+		.of_match_table = tps6598x_of_match,
 	},
 	.probe_new = tps6598x_probe,
 	.remove = tps6598x_remove,
-- 
2.25.1

Re: [PATCH v2 0/2] Add TI tps6598x DT binding and probe

[Heikki Krogerus]

Hi,

On Thu, May 07, 2020 at 10:47:31PM +0100, Bryan O'Donoghue wrote:
> V2:
> - Put myself down as sole schema maintainer as suggested - Andy
> - Fixed whitespace typo - Andy
> - Removed ifdef and of_match_ptr() - Andy
> 
> V1:
> This simple series adds DT binding yaml and a DT lookup table for the
> tps6598x.
> 
> Its possible to use i2c id_table to match the 'compatible = "ti,tps6598x"
> and probe that way, however I think it is worthwhile adding a specific OF
> way of doing it and having an accompanying yaml as an example.
> 
> Bryan O'Donoghue (2):
>   dt-bindings: usb: Add TI tps6598x device tree binding documentation
>   usb: typec: tps6598x: Add OF probe binding
> 
>  .../devicetree/bindings/usb/ti,tps6598x.yaml  | 64 +++++++++++++++++++
>  drivers/usb/typec/tps6598x.c                  |  7 ++
>  2 files changed, 71 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/ti,tps6598x.yaml

There was already a series from Angus [1] for this. The bindings
looked a bit different, but I think we should use these, because in
the DT bindings from Angus there appeared to be definitions for OF
graph that was not used. Or maybe I got it wrong?

Angus, is it OK if we use these patches instead the ones from you?

[1] https://lore.kernel.org/linux-usb/20200506191718.2144752-1-angus@akkea.ca/

thanks,

-- 
heikki

Re: [PATCH v2 0/2] Add TI tps6598x DT binding and probe

[Angus Ainslie]

Hi,

On 2020-05-08 07:01, Heikki Krogerus wrote:
> Hi,
> 
> On Thu, May 07, 2020 at 10:47:31PM +0100, Bryan O'Donoghue wrote:
>> V2:
>> - Put myself down as sole schema maintainer as suggested - Andy
>> - Fixed whitespace typo - Andy
>> - Removed ifdef and of_match_ptr() - Andy
>> 
>> V1:
>> This simple series adds DT binding yaml and a DT lookup table for the
>> tps6598x.
>> 
>> Its possible to use i2c id_table to match the 'compatible = 
>> "ti,tps6598x"
>> and probe that way, however I think it is worthwhile adding a specific 
>> OF
>> way of doing it and having an accompanying yaml as an example.
>> 
>> Bryan O'Donoghue (2):
>>   dt-bindings: usb: Add TI tps6598x device tree binding documentation
>>   usb: typec: tps6598x: Add OF probe binding
>> 
>>  .../devicetree/bindings/usb/ti,tps6598x.yaml  | 64 
>> +++++++++++++++++++
>>  drivers/usb/typec/tps6598x.c                  |  7 ++
>>  2 files changed, 71 insertions(+)
>>  create mode 100644 
>> Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
> 
> There was already a series from Angus [1] for this. The bindings
> looked a bit different, but I think we should use these, because in
> the DT bindings from Angus there appeared to be definitions for OF
> graph that was not used. Or maybe I got it wrong?
> 

I was trying to include optional components but was not sure of the 
syntax so that might have been wrong.

> Angus, is it OK if we use these patches instead the ones from you?
> 

Yeah these ones will work great for what we need.

Sorry Bryan I didn't realize there was a patch already in progress.

@Bryan, I'm going to send up some extcon patches for the tps6598x soon 
but maybe I should check and make sure you don't already have anything 
planned there.

It still needs to be retested after cleaning up but it's the top 9 
patches here:

https://source.puri.sm/angus.ainslie/linux-next/-/commits/next/extcon

Thanks
Angus

> [1] 
> https://lore.kernel.org/linux-usb/20200506191718.2144752-1-angus@akkea.ca/
> 
> thanks,

Re: [PATCH v2 0/2] Add TI tps6598x DT binding and probe

[Bryan O'Donoghue]

On 08/05/2020 15:22, Angus Ainslie wrote:
> Hi,
> 
> On 2020-05-08 07:01, Heikki Krogerus wrote:
>> Hi,
>>
>> On Thu, May 07, 2020 at 10:47:31PM +0100, Bryan O'Donoghue wrote:
>>> V2:
>>> - Put myself down as sole schema maintainer as suggested - Andy
>>> - Fixed whitespace typo - Andy
>>> - Removed ifdef and of_match_ptr() - Andy
>>>
>>> V1:
>>> This simple series adds DT binding yaml and a DT lookup table for the
>>> tps6598x.
>>>
>>> Its possible to use i2c id_table to match the 'compatible = 
>>> "ti,tps6598x"
>>> and probe that way, however I think it is worthwhile adding a 
>>> specific OF
>>> way of doing it and having an accompanying yaml as an example.
>>>
>>> Bryan O'Donoghue (2):
>>>   dt-bindings: usb: Add TI tps6598x device tree binding documentation
>>>   usb: typec: tps6598x: Add OF probe binding
>>>
>>>  .../devicetree/bindings/usb/ti,tps6598x.yaml  | 64 +++++++++++++++++++
>>>  drivers/usb/typec/tps6598x.c                  |  7 ++
>>>  2 files changed, 71 insertions(+)
>>>  create mode 100644 
>>> Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
>>
>> There was already a series from Angus [1] for this. The bindings
>> looked a bit different, but I think we should use these, because in
>> the DT bindings from Angus there appeared to be definitions for OF
>> graph that was not used. Or maybe I got it wrong?
>>
> 
> I was trying to include optional components but was not sure of the 
> syntax so that might have been wrong.
> 
>> Angus, is it OK if we use these patches instead the ones from you?
>>
> 
> Yeah these ones will work great for what we need.
> 
> Sorry Bryan I didn't realize there was a patch already in progress.
> 
> @Bryan, I'm going to send up some extcon patches for the tps6598x soon 
> but maybe I should check and make sure you don't already have anything 
> planned there.
> 
> It still needs to be retested after cleaning up but it's the top 9 
> patches here:
> 
> https://source.puri.sm/angus.ainslie/linux-next/-/commits/next/extcon

Makes me glad I didn't try to touch the PDO stuff :)

That series looks fine to me.

The only other modification I have is here.

https://lore.kernel.org/linux-usb/20200507215938.1983363-2-bryan.odonoghue@linaro.org/T/#u

which is about data-role switching.

---
bod

Re: [PATCH v2 0/2] Add TI tps6598x DT binding and probe

[Angus Ainslie]

On 2020-05-08 07:47, Bryan O'Donoghue wrote:
> On 08/05/2020 15:22, Angus Ainslie wrote:
>> Hi,
>> 
>> On 2020-05-08 07:01, Heikki Krogerus wrote:
>> 
>>> Angus, is it OK if we use these patches instead the ones from you?
>>> 
>> 
>> Yeah these ones will work great for what we need.
>> 
>> Sorry Bryan I didn't realize there was a patch already in progress.
>> 
>> @Bryan, I'm going to send up some extcon patches for the tps6598x soon 
>> but maybe I should check and make sure you don't already have anything 
>> planned there.
>> 
>> It still needs to be retested after cleaning up but it's the top 9 
>> patches here:
>> 
>> https://source.puri.sm/angus.ainslie/linux-next/-/commits/next/extcon
> 
> Makes me glad I didn't try to touch the PDO stuff :)
> 
> That series looks fine to me.
> 
> The only other modification I have is here.
> 
> https://lore.kernel.org/linux-usb/20200507215938.1983363-2-bryan.odonoghue@linaro.org/T/#u
> 
> which is about data-role switching.

We have something similar but that one should work for us. I'll try and 
test that early next week.

Thanks
Angus

> 
> ---
> bod

Re: [PATCH v2 2/2] usb: typec: tps6598x: Add OF probe binding

[Martin Kepplinger]

From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

> Adds a MODULE_DEVICE_TABLE() to allow probing of this driver from a DTS
> setting.

Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>

thanks!
                           martin

Re: [PATCH v2 2/2] usb: typec: tps6598x: Add OF probe binding

[Heikki Krogerus]

On Thu, May 07, 2020 at 10:47:33PM +0100, Bryan O'Donoghue wrote:
> Adds a MODULE_DEVICE_TABLE() to allow probing of this driver from a DTS
> setting.
> 
> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> Cc: Gustavo A. R. Silva <garsilva@embeddedor.com>
> Cc: Kees Cook <keescook@chromium.org>
> Cc: linux-usb@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>

Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>

> ---
>  drivers/usb/typec/tps6598x.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c
> index 0698addd1185..defa651282b0 100644
> --- a/drivers/usb/typec/tps6598x.c
> +++ b/drivers/usb/typec/tps6598x.c
> @@ -563,6 +563,12 @@ static int tps6598x_remove(struct i2c_client *client)
>  	return 0;
>  }
>  
> +static const struct of_device_id tps6598x_of_match[] = {
> +	{ .compatible = "ti,tps6598x", },
> +	{}
> +};
> +MODULE_DEVICE_TABLE(of, tps6598x_of_match);
> +
>  static const struct i2c_device_id tps6598x_id[] = {
>  	{ "tps6598x" },
>  	{ }
> @@ -572,6 +578,7 @@ MODULE_DEVICE_TABLE(i2c, tps6598x_id);
>  static struct i2c_driver tps6598x_i2c_driver = {
>  	.driver = {
>  		.name = "tps6598x",
> +		.of_match_table = tps6598x_of_match,
>  	},
>  	.probe_new = tps6598x_probe,
>  	.remove = tps6598x_remove,
> -- 
> 2.25.1

thanks,

-- 
heikki

Re: [PATCH v2 1/2] dt-bindings: usb: Add TI tps6598x device tree binding documentation

[Rob Herring]

On Thu, May 07, 2020 at 10:47:32PM +0100, Bryan O'Donoghue wrote:
> Add device tree binding documentation for the Texas Instruments tps6598x
> Type-C chip driver.
> 
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Cc: linux-usb@vger.kernel.org
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> ---
>  .../devicetree/bindings/usb/ti,tps6598x.yaml  | 64 +++++++++++++++++++
>  1 file changed, 64 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
> 
> diff --git a/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml b/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
> new file mode 100644
> index 000000000000..8eaf4b6c4735
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/ti,tps6598x.yaml
> @@ -0,0 +1,64 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/usb/ti,tps6598x.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Texas Instruments 6598x Type-C Port Switch and Power Delivery controller DT bindings
> +
> +maintainers:
> +  - Bryan O'Donoghue <bryan.odonoghue@linaro.org>
> +
> +description: |
> +  Texas Instruments 6598x Type-C Port Switch and Power Delivery controller
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ti,tps6598x
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  interrupt-names:
> +    items:
> +      - const: irq
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - interrupt-names
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    i2c0 {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        tps6598x: tps6598x@38 {
> +            compatible = "ti,tps6598x";
> +            reg = <0x38>;
> +
> +            interrupt-parent = <&msmgpio>;
> +            interrupts = <107 IRQ_TYPE_LEVEL_LOW>;
> +            interrupt-names = "irq";
> +
> +            pinctrl-names = "default";
> +            pinctrl-0 = <&typec_pins>;
> +
> +            typec_con: connector {
> +                compatible = "usb-c-connector";
> +                label = "USB-C";
> +                port {

The connector binding has specific numbering of the ports defined for 
HS, SS, alt mode.

So you should have 'ports' here.

> +                    typec_ep: endpoint {
> +                        remote-endpoint = <&otg_ep>;
> +                    };
> +                };
> +            };
> +        };
> +    };
> +...
> -- 
> 2.25.1
>