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[v8,00/14] staging: typec: tcpci: move out of staging

Message ID 1530056732-9640-1-git-send-email-jun.li@nxp.com
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Series staging: typec: tcpci: move out of staging | expand

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Jun Li June 26, 2018, 11:45 p.m. UTC
This patch set attempts to move the tcpci drivers out of staging by fix
some tcpci driver issues and define typec and power delivery device
properties, the changes are verified on NXP PTN5110, which is a standard
tcpci typec port controller device with power delivery support, tested
power source and sink with drp config.

Changes for v8:
- Favouring the generic FW based capabilities(tcpc_dev->fwnode) over values
  defined in a Type C port controller driver(tcpc_dev->config)
- Add Heikki's Reviewed-by for patch:
  usb: typec: add API to get typec basic port power and data config

Changes for v7:
- Fix export symbols mismatch in patch:
  usb: typec: add API to get typec basic port power and data config
  rename typec_port_types to be typec_port_power_roles.
- Drop patch:
  usb: typec: tcpm: set cc for drp toggling attach
  It's arguable as it's only to address specific HW problem, and which
  can be resolved by add try.src/snk property.
    
Changes for v6:
- Change function name to be typec_find_port_power/data_role for find
  capability, and typec_find_power_role for find one specific power role.
- Fix rt1711h driver move missing.
- Add one patch to improve the error checking in tcpci driver, use IS_ERR()
  instead of PTR_ERR_OR_ZERO().
- Add Rob's Reviewed-by for patch [2/15].
- Misc typos fix.
 
Changes for v5:
- Use "power-role" and "data-role" for typec port power and data capability
  property name.  
- Use macro definition instead of cryptic numbers for readability of
  power delivery properties(PDO).
- Add one tcpci driver binding string to be "nxp,ptn5110" to follow binding
  name rule "<vendor prefix>,<device>".
- Change operating power property name to be op-sink-microwatt.
- Add one patch(remove unused tcpci_tcpc_config) to resolve bisectablitity
  issue of patch usb: typec: add fwnode to tcpc.
- A minor error handling change to keep the error path and success path
  separate in patch: register port before request irq
- Rebase to latest Greg's tree with max_snk_* removed.

Changes for v4:
- Remove max-sink-* properties as we will purge max_snk_* in tcpm,
  see patch set[4].
- Get typec power and data type value via name string(patch 5).
- Move finding typec and pd properties code from tcpci to tcpm(patch 6)
- Add a compatible string for nxp ptn5110 typec controller in tcpci driver.
  (patch 3)
- Add set cc for drp toggling without try.src/snk in tcpm(patch 10), then
  patch 11 can only update CCx bits for keep disconnect cc line open.
- Update op-sink-microwatt-hours example value to be the right value in
  micorwatts, and accordingly divide 1000 to get its miliwatts value
  in patch 6.
- Add Guenter's Reviewed-by for patch(8/9/12)

[4] https://www.spinics.net/lists/linux-usb/msg167261.html

Changes for v3:
- Use 2 properties to separate power and data capability of typec port:
  "power-type" and "data-type", this is based on Heikki's typec class code
  change[2]. use "try-power-role" to present if the typec port can support
  Try.SNK or Try.SRC.
- 4 sink properties(max_sink_mv/ma/mw and op_sink_mw) are kept because the
  counterpart code is back, see revert patch[3], meanwhile I post a patch
  to fix the reported problem of current source pdo select machinism(which
  completely ignored those 4 sink settings), to see if we can keep current
  code, once it was discussed and have conclusion I can update this
  accordingly.
- Use fwnode to get the connector node for dt setting parse.

Main changes for v2:
- Typec properties are based on general usb connector bindings[1] proposed
  by Andrzej Hajda, use the standard unit suffixes as defined in
  property-units.txt.
- Add 2 infra APIs to get power sink and source config from dt.
- Don't change the set_cc api, to keep the uncontacted cc line open,
  set cc1/cc2 to be open in tcpci driver when set polarity.
- Directly enable vbus detect in tcpci driver rather than add a API.
- Details added in each patch.

[1] https://patchwork.kernel.org/patch/10231447/
[2] https://patchwork.kernel.org/patch/10276483/
[3] https://www.spinics.net/lists/linux-usb/msg166366.html

Li Jun (13):
  dt-bindings: connector: add properties for typec
  dt-bindings: usb: add documentation for typec port controller(TCPCI)
  staging: typec: tcpci: add compatible string for nxp ptn5110
  usb: typec: add fwnode to tcpc
  usb: typec: add API to get typec basic port power and data config
  usb: typec: tcpm: support get typec and pd config from device
    properties
  staging: typec: tcpci: remove unused tcpci_tcpc_config
  staging: typec: tcpci: use IS_ERR() instead of PTR_ERR_OR_ZERO()
  staging: typec: tcpci: enable vbus detection
  typec: tcpm: add starting value for drp toggling
  staging: typec: tcpci: keep the disconnected cc line open
  staging: typec: tcpci: Only touch target bit when enable vconn
  staging: typec: tcpci: move tcpci drivers out of staging

Peter Chen (1):
  staging: typec: tcpci: register port before request irq

 .../bindings/connector/usb-connector.txt           |  44 +++++++
 .../devicetree/bindings/usb/typec-tcpci.txt        |  49 +++++++
 drivers/staging/Kconfig                            |   2 -
 drivers/staging/Makefile                           |   1 -
 drivers/staging/typec/Kconfig                      |  22 ----
 drivers/staging/typec/Makefile                     |   2 -
 drivers/staging/typec/TODO                         |   5 -
 drivers/usb/typec/Kconfig                          |  15 +++
 drivers/usb/typec/Makefile                         |   2 +
 drivers/usb/typec/class.c                          |  58 ++++++++-
 drivers/{staging => usb}/typec/tcpci.c             |  66 ++++++----
 drivers/{staging => usb}/typec/tcpci.h             |   0
 drivers/{staging => usb}/typec/tcpci_rt1711h.c     |   0
 drivers/usb/typec/tcpm.c                           | 142 +++++++++++++++++----
 include/dt-bindings/usb/pd.h                       |  62 +++++++++
 include/linux/usb/tcpm.h                           |   2 +
 include/linux/usb/typec.h                          |   3 +
 17 files changed, 387 insertions(+), 88 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/typec-tcpci.txt
 delete mode 100644 drivers/staging/typec/Kconfig
 delete mode 100644 drivers/staging/typec/Makefile
 delete mode 100644 drivers/staging/typec/TODO
 rename drivers/{staging => usb}/typec/tcpci.c (92%)
 rename drivers/{staging => usb}/typec/tcpci.h (100%)
 rename drivers/{staging => usb}/typec/tcpci_rt1711h.c (100%)
 create mode 100644 include/dt-bindings/usb/pd.h

Comments

Guenter Roeck June 27, 2018, 12:28 a.m. UTC | #1
On 06/26/2018 04:45 PM, Li Jun wrote:
> Add nxp ptn5110 typec controller compatible string: "nxp,ptn5110",
> which is a standard tcpci chip with power delivery support. Meanwhile
> remove "usb,tcpci" because it doesn't follow the binding format rule
> and has not been used yet.
> 
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Signed-off-by: Li Jun <jun.li@nxp.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>   drivers/staging/typec/tcpci.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
> index 076d97e..dd29288 100644
> --- a/drivers/staging/typec/tcpci.c
> +++ b/drivers/staging/typec/tcpci.c
> @@ -575,7 +575,7 @@ MODULE_DEVICE_TABLE(i2c, tcpci_id);
>   
>   #ifdef CONFIG_OF
>   static const struct of_device_id tcpci_of_match[] = {
> -	{ .compatible = "usb,tcpci", },
> +	{ .compatible = "nxp,ptn5110", },
>   	{},
>   };
>   MODULE_DEVICE_TABLE(of, tcpci_of_match);
> 

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Guenter Roeck June 27, 2018, 12:30 a.m. UTC | #2
On 06/26/2018 04:45 PM, Li Jun wrote:
> Add fwnode handle to get the fwnode so we can get typec configs
> it contains.
> 
> Suggested-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Signed-off-by: Li Jun <jun.li@nxp.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>   drivers/staging/typec/tcpci.c | 7 +++++++
>   drivers/usb/typec/tcpm.c      | 1 +
>   include/linux/usb/tcpm.h      | 2 ++
>   3 files changed, 10 insertions(+)
> 
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
> index dd29288..e59547a 100644
> --- a/drivers/staging/typec/tcpci.c
> +++ b/drivers/staging/typec/tcpci.c
> @@ -10,6 +10,7 @@
>   #include <linux/module.h>
>   #include <linux/i2c.h>
>   #include <linux/interrupt.h>
> +#include <linux/property.h>
>   #include <linux/regmap.h>
>   #include <linux/usb/pd.h>
>   #include <linux/usb/tcpm.h>
> @@ -474,6 +475,12 @@ static int tcpci_parse_config(struct tcpci *tcpci)
>   
>   	/* TODO: Populate struct tcpc_config from ACPI/device-tree */
>   	tcpci->tcpc.config = &tcpci_tcpc_config;
> +	tcpci->tcpc.fwnode = device_get_named_child_node(tcpci->dev,
> +							 "connector");
> +	if (!tcpci->tcpc.fwnode) {
> +		dev_err(tcpci->dev, "Can't find connector node.\n");
> +		return -EINVAL;
> +	}
>   
>   	return 0;
>   }
> diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
> index 8a201dd..d22b37b 100644
> --- a/drivers/usb/typec/tcpm.c
> +++ b/drivers/usb/typec/tcpm.c
> @@ -4576,6 +4576,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
>   	else
>   		port->try_role = TYPEC_NO_PREFERRED_ROLE;
>   
> +	port->typec_caps.fwnode = tcpc->fwnode;
>   	port->typec_caps.prefer_role = tcpc->config->default_role;
>   	port->typec_caps.type = tcpc->config->type;
>   	port->typec_caps.data = tcpc->config->data;
> diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
> index b231b93..193920a 100644
> --- a/include/linux/usb/tcpm.h
> +++ b/include/linux/usb/tcpm.h
> @@ -110,6 +110,7 @@ enum tcpc_mux_mode {
>   /**
>    * struct tcpc_dev - Port configuration and callback functions
>    * @config:	Pointer to port configuration
> + * @fwnode:	Pointer to port fwnode
>    * @get_vbus:	Called to read current VBUS state
>    * @get_current_limit:
>    *		Optional; called by the tcpm core when configured as a snk
> @@ -138,6 +139,7 @@ enum tcpc_mux_mode {
>    */
>   struct tcpc_dev {
>   	const struct tcpc_config *config;
> +	struct fwnode_handle *fwnode;
>   
>   	int (*init)(struct tcpc_dev *dev);
>   	int (*get_vbus)(struct tcpc_dev *dev);
> 

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Guenter Roeck June 27, 2018, 12:31 a.m. UTC | #3
On 06/26/2018 04:45 PM, Li Jun wrote:
> Since we will use config settings via device properties, so
> remove the hard code tcpci_tcpc_config.
> 
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Signed-off-by: Li Jun <jun.li@nxp.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>   drivers/staging/typec/tcpci.c | 7 -------
>   1 file changed, 7 deletions(-)
> 
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
> index e59547a..076498a 100644
> --- a/drivers/staging/typec/tcpci.c
> +++ b/drivers/staging/typec/tcpci.c
> @@ -464,17 +464,10 @@ static const struct regmap_config tcpci_regmap_config = {
>   	.max_register = 0x7F, /* 0x80 .. 0xFF are vendor defined */
>   };
>   
> -static const struct tcpc_config tcpci_tcpc_config = {
> -	.type = TYPEC_PORT_DFP,
> -	.default_role = TYPEC_SINK,
> -};
> -
>   static int tcpci_parse_config(struct tcpci *tcpci)
>   {
>   	tcpci->controls_vbus = true; /* XXX */
>   
> -	/* TODO: Populate struct tcpc_config from ACPI/device-tree */
> -	tcpci->tcpc.config = &tcpci_tcpc_config;
>   	tcpci->tcpc.fwnode = device_get_named_child_node(tcpci->dev,
>   							 "connector");
>   	if (!tcpci->tcpc.fwnode) {
> 

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Guenter Roeck June 27, 2018, 12:32 a.m. UTC | #4
On 06/26/2018 04:45 PM, Li Jun wrote:
> As tcpm_register_port() and tcpci_register_port() never return
> NULL and NULL is not a success in this case, use IS_ERR() to check
> the return value of both.
> 
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Signed-off-by: Li Jun <jun.li@nxp.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>   drivers/staging/typec/tcpci.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
> index 076498a..b63f147 100644
> --- a/drivers/staging/typec/tcpci.c
> +++ b/drivers/staging/typec/tcpci.c
> @@ -509,7 +509,7 @@ struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data)
>   		return ERR_PTR(err);
>   
>   	tcpci->port = tcpm_register_port(tcpci->dev, &tcpci->tcpc);
> -	if (PTR_ERR_OR_ZERO(tcpci->port))
> +	if (IS_ERR(tcpci->port))
>   		return ERR_CAST(tcpci->port);
>   
>   	return tcpci;
> @@ -551,7 +551,7 @@ static int tcpci_probe(struct i2c_client *client,
>   		return err;
>   
>   	chip->tcpci = tcpci_register_port(&client->dev, &chip->data);
> -	if (PTR_ERR_OR_ZERO(chip->tcpci))
> +	if (IS_ERR(chip->tcpci))
>   		return PTR_ERR(chip->tcpci);
>   
>   	i2c_set_clientdata(client, chip);
> 

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Guenter Roeck June 27, 2018, 12:33 a.m. UTC | #5
On 06/26/2018 04:45 PM, Li Jun wrote:
> From: Peter Chen <peter.chen@nxp.com>
> 
> With that we can clear any pending events and the port is registered
> so driver can be ready to handle typec events once we request irq.
> 
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Signed-off-by: Peter Chen <peter.chen@nxp.com>
> Signed-off-by: Li Jun <jun.li@nxp.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>   drivers/staging/typec/tcpci.c | 15 +++++++++------
>   1 file changed, 9 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
> index b63f147..3b35fce 100644
> --- a/drivers/staging/typec/tcpci.c
> +++ b/drivers/staging/typec/tcpci.c
> @@ -537,24 +537,27 @@ static int tcpci_probe(struct i2c_client *client,
>   	if (IS_ERR(chip->data.regmap))
>   		return PTR_ERR(chip->data.regmap);
>   
> +	i2c_set_clientdata(client, chip);
> +
>   	/* Disable chip interrupts before requesting irq */
>   	err = regmap_raw_write(chip->data.regmap, TCPC_ALERT_MASK, &val,
>   			       sizeof(u16));
>   	if (err < 0)
>   		return err;
>   
> +	chip->tcpci = tcpci_register_port(&client->dev, &chip->data);
> +	if (IS_ERR(chip->tcpci))
> +		return PTR_ERR(chip->tcpci);
> +
>   	err = devm_request_threaded_irq(&client->dev, client->irq, NULL,
>   					_tcpci_irq,
>   					IRQF_ONESHOT | IRQF_TRIGGER_LOW,
>   					dev_name(&client->dev), chip);
> -	if (err < 0)
> +	if (err < 0) {
> +		tcpci_unregister_port(chip->tcpci);
>   		return err;
> +	}
>   
> -	chip->tcpci = tcpci_register_port(&client->dev, &chip->data);
> -	if (IS_ERR(chip->tcpci))
> -		return PTR_ERR(chip->tcpci);
> -
> -	i2c_set_clientdata(client, chip);
>   	return 0;
>   }
>   
> 

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Guenter Roeck June 27, 2018, 12:37 a.m. UTC | #6
On 06/26/2018 04:45 PM, Li Jun wrote:
> While set polarity, we should keep the disconnected cc line to be
> open.
> 
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Signed-off-by: Li Jun <jun.li@nxp.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>   drivers/staging/typec/tcpci.c | 18 ++++++++++++++----
>   1 file changed, 14 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
> index 4d3b0ae..11c2d37 100644
> --- a/drivers/staging/typec/tcpci.c
> +++ b/drivers/staging/typec/tcpci.c
> @@ -185,15 +185,25 @@ static int tcpci_set_polarity(struct tcpc_dev *tcpc,
>   			      enum typec_cc_polarity polarity)
>   {
>   	struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
> +	unsigned int reg;
>   	int ret;
>   
> -	ret = regmap_write(tcpci->regmap, TCPC_TCPC_CTRL,
> -			   (polarity == TYPEC_POLARITY_CC2) ?
> -			   TCPC_TCPC_CTRL_ORIENTATION : 0);
> +	/* Keep the disconnect cc line open */
> +	ret = regmap_read(tcpci->regmap, TCPC_ROLE_CTRL, &reg);
>   	if (ret < 0)
>   		return ret;
>   
> -	return 0;
> +	if (polarity == TYPEC_POLARITY_CC2)
> +		reg |= TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC1_SHIFT;
> +	else
> +		reg |= TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC2_SHIFT;
> +	ret = regmap_write(tcpci->regmap, TCPC_ROLE_CTRL, reg);
> +	if (ret < 0)
> +		return ret;
> +
> +	return regmap_write(tcpci->regmap, TCPC_TCPC_CTRL,
> +			   (polarity == TYPEC_POLARITY_CC2) ?
> +			   TCPC_TCPC_CTRL_ORIENTATION : 0);
>   }
>   
>   static int tcpci_set_vconn(struct tcpc_dev *tcpc, bool enable)
> 

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Guenter Roeck June 27, 2018, 12:39 a.m. UTC | #7
On 06/26/2018 04:45 PM, Li Jun wrote:
> Move TCPCI(Typec port controller interface) driver and rt1711h
> driver out of staging.
> 
> Signed-off-by: Li Jun <jun.li@nxp.com>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

> ---
>   drivers/staging/Kconfig                        |  2 --
>   drivers/staging/Makefile                       |  1 -
>   drivers/staging/typec/Kconfig                  | 22 ----------------------
>   drivers/staging/typec/Makefile                 |  2 --
>   drivers/staging/typec/TODO                     |  5 -----
>   drivers/usb/typec/Kconfig                      | 15 +++++++++++++++
>   drivers/usb/typec/Makefile                     |  2 ++
>   drivers/{staging => usb}/typec/tcpci.c         |  0
>   drivers/{staging => usb}/typec/tcpci.h         |  0
>   drivers/{staging => usb}/typec/tcpci_rt1711h.c |  0
>   10 files changed, 17 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
> index 75a4804..af9a82f 100644
> --- a/drivers/staging/Kconfig
> +++ b/drivers/staging/Kconfig
> @@ -106,8 +106,6 @@ source "drivers/staging/greybus/Kconfig"
>   
>   source "drivers/staging/vc04_services/Kconfig"
>   
> -source "drivers/staging/typec/Kconfig"
> -
>   source "drivers/staging/vboxvideo/Kconfig"
>   
>   source "drivers/staging/pi433/Kconfig"
> diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
> index e84959a..8479d47 100644
> --- a/drivers/staging/Makefile
> +++ b/drivers/staging/Makefile
> @@ -2,7 +2,6 @@
>   # Makefile for staging directory
>   
>   obj-y				+= media/
> -obj-y				+= typec/
>   obj-$(CONFIG_PRISM2_USB)	+= wlan-ng/
>   obj-$(CONFIG_COMEDI)		+= comedi/
>   obj-$(CONFIG_FB_OLPC_DCON)	+= olpc_dcon/
> diff --git a/drivers/staging/typec/Kconfig b/drivers/staging/typec/Kconfig
> deleted file mode 100644
> index 3aa981f..0000000
> --- a/drivers/staging/typec/Kconfig
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -menu "USB Power Delivery and Type-C drivers"
> -
> -if TYPEC_TCPM
> -
> -config TYPEC_TCPCI
> -	tristate "Type-C Port Controller Interface driver"
> -	depends on I2C
> -	select REGMAP_I2C
> -	help
> -	  Type-C Port Controller driver for TCPCI-compliant controller.
> -
> -config TYPEC_RT1711H
> -	tristate "Richtek RT1711H Type-C chip driver"
> -	select TYPEC_TCPCI
> -	help
> -	  Richtek RT1711H Type-C chip driver that works with
> -	  Type-C Port Controller Manager to provide USB PD and USB
> -	  Type-C functionalities.
> -
> -endif
> -
> -endmenu
> diff --git a/drivers/staging/typec/Makefile b/drivers/staging/typec/Makefile
> deleted file mode 100644
> index 7803d48..0000000
> --- a/drivers/staging/typec/Makefile
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -obj-$(CONFIG_TYPEC_TCPCI)	+= tcpci.o
> -obj-$(CONFIG_TYPEC_RT1711H)	+= tcpci_rt1711h.o
> diff --git a/drivers/staging/typec/TODO b/drivers/staging/typec/TODO
> deleted file mode 100644
> index 53fe2f7..0000000
> --- a/drivers/staging/typec/TODO
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -tcpci:
> -- Test with real hardware
> -
> -Please send patches to Guenter Roeck <linux@roeck-us.net> and copy
> -Heikki Krogerus <heikki.krogerus@linux.intel.com>.
> diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
> index 2c8eab1..972fd19 100644
> --- a/drivers/usb/typec/Kconfig
> +++ b/drivers/usb/typec/Kconfig
> @@ -56,6 +56,21 @@ config TYPEC_TCPM
>   
>   if TYPEC_TCPM
>   
> +config TYPEC_TCPCI
> +	tristate "Type-C Port Controller Interface driver"
> +	depends on I2C
> +	select REGMAP_I2C
> +	help
> +	  Type-C Port Controller driver for TCPCI-compliant controller.
> +
> +config TYPEC_RT1711H
> +	tristate "Richtek RT1711H Type-C chip driver"
> +	select TYPEC_TCPCI
> +	help
> +	  Richtek RT1711H Type-C chip driver that works with
> +	  Type-C Port Controller Manager to provide USB PD and USB
> +	  Type-C functionalities.
> +
>   source "drivers/usb/typec/fusb302/Kconfig"
>   
>   config TYPEC_WCOVE
> diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile
> index 1f599a6..46f86ee 100644
> --- a/drivers/usb/typec/Makefile
> +++ b/drivers/usb/typec/Makefile
> @@ -7,3 +7,5 @@ obj-$(CONFIG_TYPEC_WCOVE)	+= typec_wcove.o
>   obj-$(CONFIG_TYPEC_UCSI)	+= ucsi/
>   obj-$(CONFIG_TYPEC_TPS6598X)	+= tps6598x.o
>   obj-$(CONFIG_TYPEC)		+= mux/
> +obj-$(CONFIG_TYPEC_TCPCI)	+= tcpci.o
> +obj-$(CONFIG_TYPEC_RT1711H)	+= tcpci_rt1711h.o
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/usb/typec/tcpci.c
> similarity index 100%
> rename from drivers/staging/typec/tcpci.c
> rename to drivers/usb/typec/tcpci.c
> diff --git a/drivers/staging/typec/tcpci.h b/drivers/usb/typec/tcpci.h
> similarity index 100%
> rename from drivers/staging/typec/tcpci.h
> rename to drivers/usb/typec/tcpci.h
> diff --git a/drivers/staging/typec/tcpci_rt1711h.c b/drivers/usb/typec/tcpci_rt1711h.c
> similarity index 100%
> rename from drivers/staging/typec/tcpci_rt1711h.c
> rename to drivers/usb/typec/tcpci_rt1711h.c
> 

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Adam Thomson June 27, 2018, 8:13 a.m. UTC | #8
On 27 June 2018 00:45, Li Jun wrote:

> This patch adds support of get typec and power delivery config from
> firmware description.
> 
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
> Signed-off-by: Li Jun <jun.li@nxp.com>

Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>

> ---
>  drivers/usb/typec/tcpm.c | 131 +++++++++++++++++++++++++++++++++++++++-----
> ---
>  1 file changed, 109 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
> index d22b37b..9dcab81 100644
> --- a/drivers/usb/typec/tcpm.c
> +++ b/drivers/usb/typec/tcpm.c
> @@ -4236,6 +4236,81 @@ static int tcpm_copy_vdos(u32 *dest_vdo, const u32
> *src_vdo,
>  	return nr_vdo;
>  }
> 
> +static int tcpm_fw_get_caps(struct tcpm_port *port,
> +			    struct fwnode_handle *fwnode)
> +{
> +	const char *cap_str;
> +	int ret;
> +	u32 mw;
> +
> +	if (!fwnode)
> +		return -EINVAL;
> +
> +	/* USB data support is optional */
> +	ret = fwnode_property_read_string(fwnode, "data-role", &cap_str);
> +	if (ret == 0) {
> +		port->typec_caps.data = typec_find_port_data_role(cap_str);
> +		if (port->typec_caps.data < 0)
> +			return -EINVAL;
> +	}
> +
> +	ret = fwnode_property_read_string(fwnode, "power-role", &cap_str);
> +	if (ret < 0)
> +		return ret;
> +
> +	port->typec_caps.type = typec_find_port_power_role(cap_str);
> +	if (port->typec_caps.type < 0)
> +		return -EINVAL;
> +	port->port_type = port->typec_caps.type;
> +
> +	if (port->port_type == TYPEC_PORT_SNK)
> +		goto sink;
> +
> +	/* Get source pdos */
> +	ret = fwnode_property_read_u32_array(fwnode, "source-pdos",
> +					     NULL, 0);
> +	if (ret <= 0)
> +		return -EINVAL;
> +
> +	port->nr_src_pdo = min(ret, PDO_MAX_OBJECTS);
> +	ret = fwnode_property_read_u32_array(fwnode, "source-pdos",
> +					     port->src_pdo, port->nr_src_pdo);
> +	if ((ret < 0) || tcpm_validate_caps(port, port->src_pdo,
> +					    port->nr_src_pdo))
> +		return -EINVAL;
> +
> +	if (port->port_type == TYPEC_PORT_SRC)
> +		return 0;
> +
> +	/* Get the preferred power role for DRP */
> +	ret = fwnode_property_read_string(fwnode, "try-power-role", &cap_str);
> +	if (ret < 0)
> +		return ret;
> +
> +	port->typec_caps.prefer_role = typec_find_power_role(cap_str);
> +	if (port->typec_caps.prefer_role < 0)
> +		return -EINVAL;
> +sink:
> +	/* Get sink pdos */
> +	ret = fwnode_property_read_u32_array(fwnode, "sink-pdos",
> +					     NULL, 0);
> +	if (ret <= 0)
> +		return -EINVAL;
> +
> +	port->nr_snk_pdo = min(ret, PDO_MAX_OBJECTS);
> +	ret = fwnode_property_read_u32_array(fwnode, "sink-pdos",
> +					     port->snk_pdo, port->nr_snk_pdo);
> +	if ((ret < 0) || tcpm_validate_caps(port, port->snk_pdo,
> +					    port->nr_snk_pdo))
> +		return -EINVAL;
> +
> +	if (fwnode_property_read_u32(fwnode, "op-sink-microwatt", &mw) < 0)
> +		return -EINVAL;
> +	port->operating_snk_mw = mw / 1000;
> +
> +	return 0;
> +}
> +
>  int tcpm_update_source_capabilities(struct tcpm_port *port, const u32 *pdo,
>  				    unsigned int nr_pdo)
>  {
> @@ -4521,12 +4596,36 @@ static int devm_tcpm_psy_register(struct tcpm_port
> *port)
>  	return PTR_ERR_OR_ZERO(port->psy);
>  }
> 
> +static int tcpm_copy_caps(struct tcpm_port *port,
> +			  const struct tcpc_config *tcfg)
> +{
> +	if (tcpm_validate_caps(port, tcfg->src_pdo, tcfg->nr_src_pdo) ||
> +	    tcpm_validate_caps(port, tcfg->snk_pdo, tcfg->nr_snk_pdo))
> +		return -EINVAL;
> +
> +	port->nr_src_pdo = tcpm_copy_pdos(port->src_pdo, tcfg->src_pdo,
> +					  tcfg->nr_src_pdo);
> +	port->nr_snk_pdo = tcpm_copy_pdos(port->snk_pdo, tcfg->snk_pdo,
> +					  tcfg->nr_snk_pdo);
> +
> +	port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcfg->snk_vdo,
> +					  tcfg->nr_snk_vdo);
> +
> +	port->operating_snk_mw = tcfg->operating_snk_mw;
> +
> +	port->typec_caps.prefer_role = tcfg->default_role;
> +	port->typec_caps.type = tcfg->type;
> +	port->typec_caps.data = tcfg->data;
> +
> +	return 0;
> +}
> +
>  struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
>  {
>  	struct tcpm_port *port;
>  	int i, err;
> 
> -	if (!dev || !tcpc || !tcpc->config ||
> +	if (!dev || !tcpc ||
>  	    !tcpc->get_vbus || !tcpc->set_cc || !tcpc->get_cc ||
>  	    !tcpc->set_polarity || !tcpc->set_vconn || !tcpc->set_vbus ||
>  	    !tcpc->set_pd_rx || !tcpc->set_roles || !tcpc->pd_transmit)
> @@ -4556,30 +4655,18 @@ struct tcpm_port *tcpm_register_port(struct device
> *dev, struct tcpc_dev *tcpc)
>  	init_completion(&port->pps_complete);
>  	tcpm_debugfs_init(port);
> 
> -	if (tcpm_validate_caps(port, tcpc->config->src_pdo,
> -			       tcpc->config->nr_src_pdo) ||
> -	    tcpm_validate_caps(port, tcpc->config->snk_pdo,
> -			       tcpc->config->nr_snk_pdo)) {
> -		err = -EINVAL;
> +	err = tcpm_fw_get_caps(port, tcpc->fwnode);
> +	if ((err < 0) && tcpc->config)
> +		err = tcpm_copy_caps(port, tcpc->config);
> +	if (err < 0)
>  		goto out_destroy_wq;
> -	}
> -	port->nr_src_pdo = tcpm_copy_pdos(port->src_pdo, tcpc->config->src_pdo,
> -					  tcpc->config->nr_src_pdo);
> -	port->nr_snk_pdo = tcpm_copy_pdos(port->snk_pdo, tcpc->config-
> >snk_pdo,
> -					  tcpc->config->nr_snk_pdo);
> -	port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcpc->config-
> >snk_vdo,
> -					  tcpc->config->nr_snk_vdo);
> -
> -	port->operating_snk_mw = tcpc->config->operating_snk_mw;
> -	if (!tcpc->config->try_role_hw)
> -		port->try_role = tcpc->config->default_role;
> +
> +	if (!tcpc->config || !tcpc->config->try_role_hw)
> +		port->try_role = port->typec_caps.prefer_role;
>  	else
>  		port->try_role = TYPEC_NO_PREFERRED_ROLE;
> 
>  	port->typec_caps.fwnode = tcpc->fwnode;
> -	port->typec_caps.prefer_role = tcpc->config->default_role;
> -	port->typec_caps.type = tcpc->config->type;
> -	port->typec_caps.data = tcpc->config->data;
>  	port->typec_caps.revision = 0x0120;	/* Type-C spec release 1.2 */
>  	port->typec_caps.pd_revision = 0x0300;	/* USB-PD spec release 3.0 */
>  	port->typec_caps.dr_set = tcpm_dr_set;
> @@ -4589,7 +4676,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev,
> struct tcpc_dev *tcpc)
>  	port->typec_caps.port_type_set = tcpm_port_type_set;
> 
>  	port->partner_desc.identity = &port->partner_ident;
> -	port->port_type = tcpc->config->type;
> +	port->port_type = port->typec_caps.type;
> 
>  	port->role_sw = usb_role_switch_get(port->dev);
>  	if (IS_ERR(port->role_sw)) {
> @@ -4607,7 +4694,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev,
> struct tcpc_dev *tcpc)
>  		goto out_destroy_wq;
>  	}
> 
> -	if (tcpc->config->alt_modes) {
> +	if (tcpc->config && tcpc->config->alt_modes) {
>  		const struct typec_altmode_desc *paltmode = tcpc->config-
> >alt_modes;
> 
>  		i = 0;
> --
> 2.7.4
> 
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Heikki Krogerus June 27, 2018, 8:15 a.m. UTC | #9
On Wed, Jun 27, 2018 at 07:45:32AM +0800, Li Jun wrote:
> Move TCPCI(Typec port controller interface) driver and rt1711h
> driver out of staging.
> 
> Signed-off-by: Li Jun <jun.li@nxp.com>

Thanks Li!

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

> ---
>  drivers/staging/Kconfig                        |  2 --
>  drivers/staging/Makefile                       |  1 -
>  drivers/staging/typec/Kconfig                  | 22 ----------------------
>  drivers/staging/typec/Makefile                 |  2 --
>  drivers/staging/typec/TODO                     |  5 -----
>  drivers/usb/typec/Kconfig                      | 15 +++++++++++++++
>  drivers/usb/typec/Makefile                     |  2 ++
>  drivers/{staging => usb}/typec/tcpci.c         |  0
>  drivers/{staging => usb}/typec/tcpci.h         |  0
>  drivers/{staging => usb}/typec/tcpci_rt1711h.c |  0
>  10 files changed, 17 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
> index 75a4804..af9a82f 100644
> --- a/drivers/staging/Kconfig
> +++ b/drivers/staging/Kconfig
> @@ -106,8 +106,6 @@ source "drivers/staging/greybus/Kconfig"
>  
>  source "drivers/staging/vc04_services/Kconfig"
>  
> -source "drivers/staging/typec/Kconfig"
> -
>  source "drivers/staging/vboxvideo/Kconfig"
>  
>  source "drivers/staging/pi433/Kconfig"
> diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
> index e84959a..8479d47 100644
> --- a/drivers/staging/Makefile
> +++ b/drivers/staging/Makefile
> @@ -2,7 +2,6 @@
>  # Makefile for staging directory
>  
>  obj-y				+= media/
> -obj-y				+= typec/
>  obj-$(CONFIG_PRISM2_USB)	+= wlan-ng/
>  obj-$(CONFIG_COMEDI)		+= comedi/
>  obj-$(CONFIG_FB_OLPC_DCON)	+= olpc_dcon/
> diff --git a/drivers/staging/typec/Kconfig b/drivers/staging/typec/Kconfig
> deleted file mode 100644
> index 3aa981f..0000000
> --- a/drivers/staging/typec/Kconfig
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -menu "USB Power Delivery and Type-C drivers"
> -
> -if TYPEC_TCPM
> -
> -config TYPEC_TCPCI
> -	tristate "Type-C Port Controller Interface driver"
> -	depends on I2C
> -	select REGMAP_I2C
> -	help
> -	  Type-C Port Controller driver for TCPCI-compliant controller.
> -
> -config TYPEC_RT1711H
> -	tristate "Richtek RT1711H Type-C chip driver"
> -	select TYPEC_TCPCI
> -	help
> -	  Richtek RT1711H Type-C chip driver that works with
> -	  Type-C Port Controller Manager to provide USB PD and USB
> -	  Type-C functionalities.
> -
> -endif
> -
> -endmenu
> diff --git a/drivers/staging/typec/Makefile b/drivers/staging/typec/Makefile
> deleted file mode 100644
> index 7803d48..0000000
> --- a/drivers/staging/typec/Makefile
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -obj-$(CONFIG_TYPEC_TCPCI)	+= tcpci.o
> -obj-$(CONFIG_TYPEC_RT1711H)	+= tcpci_rt1711h.o
> diff --git a/drivers/staging/typec/TODO b/drivers/staging/typec/TODO
> deleted file mode 100644
> index 53fe2f7..0000000
> --- a/drivers/staging/typec/TODO
> +++ /dev/null
> @@ -1,5 +0,0 @@
> -tcpci:
> -- Test with real hardware
> -
> -Please send patches to Guenter Roeck <linux@roeck-us.net> and copy
> -Heikki Krogerus <heikki.krogerus@linux.intel.com>.
> diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
> index 2c8eab1..972fd19 100644
> --- a/drivers/usb/typec/Kconfig
> +++ b/drivers/usb/typec/Kconfig
> @@ -56,6 +56,21 @@ config TYPEC_TCPM
>  
>  if TYPEC_TCPM
>  
> +config TYPEC_TCPCI
> +	tristate "Type-C Port Controller Interface driver"
> +	depends on I2C
> +	select REGMAP_I2C
> +	help
> +	  Type-C Port Controller driver for TCPCI-compliant controller.
> +
> +config TYPEC_RT1711H
> +	tristate "Richtek RT1711H Type-C chip driver"
> +	select TYPEC_TCPCI
> +	help
> +	  Richtek RT1711H Type-C chip driver that works with
> +	  Type-C Port Controller Manager to provide USB PD and USB
> +	  Type-C functionalities.
> +
>  source "drivers/usb/typec/fusb302/Kconfig"
>  
>  config TYPEC_WCOVE
> diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile
> index 1f599a6..46f86ee 100644
> --- a/drivers/usb/typec/Makefile
> +++ b/drivers/usb/typec/Makefile
> @@ -7,3 +7,5 @@ obj-$(CONFIG_TYPEC_WCOVE)	+= typec_wcove.o
>  obj-$(CONFIG_TYPEC_UCSI)	+= ucsi/
>  obj-$(CONFIG_TYPEC_TPS6598X)	+= tps6598x.o
>  obj-$(CONFIG_TYPEC)		+= mux/
> +obj-$(CONFIG_TYPEC_TCPCI)	+= tcpci.o
> +obj-$(CONFIG_TYPEC_RT1711H)	+= tcpci_rt1711h.o
> diff --git a/drivers/staging/typec/tcpci.c b/drivers/usb/typec/tcpci.c
> similarity index 100%
> rename from drivers/staging/typec/tcpci.c
> rename to drivers/usb/typec/tcpci.c
> diff --git a/drivers/staging/typec/tcpci.h b/drivers/usb/typec/tcpci.h
> similarity index 100%
> rename from drivers/staging/typec/tcpci.h
> rename to drivers/usb/typec/tcpci.h
> diff --git a/drivers/staging/typec/tcpci_rt1711h.c b/drivers/usb/typec/tcpci_rt1711h.c
> similarity index 100%
> rename from drivers/staging/typec/tcpci_rt1711h.c
> rename to drivers/usb/typec/tcpci_rt1711h.c
Greg Kroah-Hartman June 28, 2018, 10:50 a.m. UTC | #10
On Wed, Jun 27, 2018 at 07:45:18AM +0800, Li Jun wrote:
> This patch set attempts to move the tcpci drivers out of staging by fix
> some tcpci driver issues and define typec and power delivery device
> properties, the changes are verified on NXP PTN5110, which is a standard
> tcpci typec port controller device with power delivery support, tested
> power source and sink with drp config.

Nice work, thanks for sticking with this.  All now merged.

greg k-h
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