[PATCH v5 0/8] Thunderbolt and DP altmode support for cros-ec-typec

[PATCH v5 0/8] Thunderbolt and DP altmode support for cros-ec-typec

[Abhishek Pandit-Subedi]

Hi Heikki, Tzung-Bi et al,

This patch series adds support for alternate mode entry for the
cros-ec-typec driver for Displayport and Thunderbolt.

Thunderbolt support is added by adapting an RFC Heikki had posted
previously:

https://lore.kernel.org/linux-usb/20191230152857.43917-1-heikki.krogerus@linux.intel.com/

A few comments on the series:

* The cros-ec interface will not accept any VDOs/VDMs so we simply
  ignore any configurations we are passed (i.e. DPConfigure). This means
  the sysfs control of DP lanes won't work.
* ChromeOS has two modes of operation for alt-modes: entirely EC driven
  or AP-driven from userspace (via the typec daemon). Thus, we don't
  expect the kernel alt-mode drivers to auto-enter modes in all cases.
  This series allows auto-enter for displayport but disables it for TBT
  for this reason.

This was tested with a ChromeOS Brya device using kernel 6.6 and built
with allmodconfig for linux-usb.

Thanks,
Abhishek

Changes in v5:
- Rebase with module_alias_printf
- Add lockdep, missing includes and fix up block comment style.
- Extract port altmode ".active" changes to its own patch
- Put dev_err on single line.
- Slip clang-format a washington to look the other way.
- Use list_for_each_entry and simplify conditional statement within
- Include missing headers for altmodes
- Consistent use of `adata` for altmode data
- Fix incorrect alloc size of dp_data

Changes in v4:
- Large refactor to use cable_altmodes
- Fixed ordering of cable mode enter/exit (SOP', SOP", then port for
  enter; reverse order for exit)
- Other small fixes from v3 feedback
- memset struct typec_altmode_desc
- Add CONFIG_CROS_EC_TYPEC_ALTMODES for Makefile use
- Move ap_driven_altmode check to common vdm function
- Add locking to protect shared data
- Update enter/exit error messages
- Update Makefile + Kconfig to use CONFIG_CROS_EC_TYPEC_ALTMODES
- Add locking in vdm function

Changes in v3:
- Removed mode from altmode device ids
- Updated modalias for typecd bus to remove mode
- Re-ordered to start of series
- Revert rename of TYPEC_TBT_MODE
- Remove mode from typec_device_id
- Refactored typec_altmode_dp_data per review request
- Removed unused vdm operations during altmode registration
- Fix usage of TBT sid and mode.
- Removed unused vdm operations during altmode registration
- Set port.inactive = true instead of auto-enter.

Changes in v2:
- Update altmode_match to ignore mode entirely
- Also apply the same behavior to typec_match
- Use <linux/usb/typec_tbt.h> and add missing TBT_CABLE_ROUNDED
- Pass struct typec_thunderbolt_data to typec_altmode_notify
- Rename TYPEC_TBT_MODE to USB_TYPEC_TBT_MODE
- Use USB_TYPEC_TBT_SID and USB_TYPEC_TBT_MODE for device id
- Change module license to GPL due to checkpatch warning
- Refactored displayport into cros_typec_altmode.c to extract common
  implementation between altmodes
- Refactored thunderbolt support into cros_typec_altmode.c
- Only disable auto-enter for Thunderbolt
- Update commit message to clearly indicate the need for userspace
  intervention to enter TBT mode

Changes in v1:
- Delay cable + plug checks so that the module doesn't fail to probe
  if cable + plug information isn't available by the time the partner
  altmode is registered.
- Remove unncessary brace after if (IS_ERR(plug))

Abhishek Pandit-Subedi (7):
  usb: typec: Only use SVID for matching altmodes
  usb: typec: Make active on port altmode writable
  usb: typec: Print err when displayport fails to enter
  platform/chrome: cros_ec_typec: Update partner altmode active
  platform/chrome: cros_ec_typec: Displayport support
  platform/chrome: cros_ec_typec: Thunderbolt support
  platform/chrome: cros_ec_typec: Disable tbt on port

Heikki Krogerus (1):
  usb: typec: Add driver for Thunderbolt 3 Alternate Mode

 MAINTAINERS                                  |   3 +
 drivers/platform/chrome/Kconfig              |   7 +
 drivers/platform/chrome/Makefile             |   4 +
 drivers/platform/chrome/cros_ec_typec.c      |  46 ++-
 drivers/platform/chrome/cros_ec_typec.h      |   1 +
 drivers/platform/chrome/cros_typec_altmode.c | 373 ++++++++++++++++++
 drivers/platform/chrome/cros_typec_altmode.h |  51 +++
 drivers/usb/typec/altmodes/Kconfig           |   9 +
 drivers/usb/typec/altmodes/Makefile          |   2 +
 drivers/usb/typec/altmodes/displayport.c     |   4 +-
 drivers/usb/typec/altmodes/nvidia.c          |   2 +-
 drivers/usb/typec/altmodes/thunderbolt.c     | 388 +++++++++++++++++++
 drivers/usb/typec/bus.c                      |   6 +-
 drivers/usb/typec/class.c                    |   9 +-
 include/linux/usb/typec.h                    |   2 +
 include/linux/usb/typec_tbt.h                |   1 +
 scripts/mod/devicetable-offsets.c            |   1 -
 scripts/mod/file2alias.c                     |   9 +-
 18 files changed, 885 insertions(+), 33 deletions(-)
 create mode 100644 drivers/platform/chrome/cros_typec_altmode.c
 create mode 100644 drivers/platform/chrome/cros_typec_altmode.h
 create mode 100644 drivers/usb/typec/altmodes/thunderbolt.c

-- 
2.47.1.613.gc27f4b7a9f-goog

[PATCH v5 1/8] usb: typec: Only use SVID for matching altmodes

[Abhishek Pandit-Subedi]

Mode in struct typec_altmode is used to indicate the index of the
altmode on a port, partner or plug. It is used in enter mode VDMs but
doesn't make much sense for matching against altmode drivers or for
matching partner to port altmodes.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---

Changes in v5:
- Rebase with module_alias_printf

Changes in v3:
- Removed mode from altmode device ids
- Updated modalias for typecd bus to remove mode
- Re-ordered to start of series

Changes in v2:
- Update altmode_match to ignore mode entirely
- Also apply the same behavior to typec_match

 drivers/usb/typec/altmodes/displayport.c | 2 +-
 drivers/usb/typec/altmodes/nvidia.c      | 2 +-
 drivers/usb/typec/bus.c                  | 6 ++----
 drivers/usb/typec/class.c                | 4 ++--
 scripts/mod/devicetable-offsets.c        | 1 -
 scripts/mod/file2alias.c                 | 9 ++-------
 6 files changed, 8 insertions(+), 16 deletions(-)

diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
index 2f03190a9873..3245e03d59e6 100644
--- a/drivers/usb/typec/altmodes/displayport.c
+++ b/drivers/usb/typec/altmodes/displayport.c
@@ -791,7 +791,7 @@ void dp_altmode_remove(struct typec_altmode *alt)
 EXPORT_SYMBOL_GPL(dp_altmode_remove);
 
 static const struct typec_device_id dp_typec_id[] = {
-	{ USB_TYPEC_DP_SID, USB_TYPEC_DP_MODE },
+	{ USB_TYPEC_DP_SID },
 	{ },
 };
 MODULE_DEVICE_TABLE(typec, dp_typec_id);
diff --git a/drivers/usb/typec/altmodes/nvidia.c b/drivers/usb/typec/altmodes/nvidia.c
index fe70b36f078f..2b77d931e494 100644
--- a/drivers/usb/typec/altmodes/nvidia.c
+++ b/drivers/usb/typec/altmodes/nvidia.c
@@ -24,7 +24,7 @@ static void nvidia_altmode_remove(struct typec_altmode *alt)
 }
 
 static const struct typec_device_id nvidia_typec_id[] = {
-	{ USB_TYPEC_NVIDIA_VLINK_SID, TYPEC_ANY_MODE },
+	{ USB_TYPEC_NVIDIA_VLINK_SID },
 	{ },
 };
 MODULE_DEVICE_TABLE(typec, nvidia_typec_id);
diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c
index aa879253d3b8..ae90688d23e4 100644
--- a/drivers/usb/typec/bus.c
+++ b/drivers/usb/typec/bus.c
@@ -454,8 +454,7 @@ static int typec_match(struct device *dev, const struct device_driver *driver)
 	const struct typec_device_id *id;
 
 	for (id = drv->id_table; id->svid; id++)
-		if (id->svid == altmode->svid &&
-		    (id->mode == TYPEC_ANY_MODE || id->mode == altmode->mode))
+		if (id->svid == altmode->svid)
 			return 1;
 	return 0;
 }
@@ -470,8 +469,7 @@ static int typec_uevent(const struct device *dev, struct kobj_uevent_env *env)
 	if (add_uevent_var(env, "MODE=%u", altmode->mode))
 		return -ENOMEM;
 
-	return add_uevent_var(env, "MODALIAS=typec:id%04Xm%02X",
-			      altmode->svid, altmode->mode);
+	return add_uevent_var(env, "MODALIAS=typec:id%04X", altmode->svid);
 }
 
 static int typec_altmode_create_links(struct altmode *alt)
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 4b3047e055a3..febe453b96be 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -237,13 +237,13 @@ static int altmode_match(struct device *dev, void *data)
 	if (!is_typec_altmode(dev))
 		return 0;
 
-	return ((adev->svid == id->svid) && (adev->mode == id->mode));
+	return (adev->svid == id->svid);
 }
 
 static void typec_altmode_set_partner(struct altmode *altmode)
 {
 	struct typec_altmode *adev = &altmode->adev;
-	struct typec_device_id id = { adev->svid, adev->mode, };
+	struct typec_device_id id = { adev->svid };
 	struct typec_port *port = typec_altmode2port(adev);
 	struct altmode *partner;
 	struct device *dev;
diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index 9c7b404defbd..d3d00e85edf7 100644
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -237,7 +237,6 @@ int main(void)
 
 	DEVID(typec_device_id);
 	DEVID_FIELD(typec_device_id, svid);
-	DEVID_FIELD(typec_device_id, mode);
 
 	DEVID(tee_client_device_id);
 	DEVID_FIELD(tee_client_device_id, uuid);
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 5b5745f00eb3..7049c31062c6 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -1221,17 +1221,12 @@ static void do_tbsvc_entry(struct module *mod, void *symval)
 	module_alias_printf(mod, true, "tbsvc:%s", alias);
 }
 
-/* Looks like: typec:idNmN */
+/* Looks like: typec:idN */
 static void do_typec_entry(struct module *mod, void *symval)
 {
-	char alias[256] = {};
-
 	DEF_FIELD(symval, typec_device_id, svid);
-	DEF_FIELD(symval, typec_device_id, mode);
-
-	ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
 
-	module_alias_printf(mod, false, "typec:id%04X%s", svid, alias);
+	module_alias_printf(mod, false, "typec:id%04X", svid);
 }
 
 /* Looks like: tee:uuid */
-- 
2.47.1.613.gc27f4b7a9f-goog

Re: [PATCH v5 1/8] usb: typec: Only use SVID for matching altmodes

[Benson Leung]

[-- Attachment #1: Type: text/plain, Size: 5385 bytes --]

On Fri, Dec 13, 2024 at 03:35:42PM -0800, Abhishek Pandit-Subedi wrote:
> Mode in struct typec_altmode is used to indicate the index of the
> altmode on a port, partner or plug. It is used in enter mode VDMs but
> doesn't make much sense for matching against altmode drivers or for
> matching partner to port altmodes.
> 
> Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>



> ---
> 
> Changes in v5:
> - Rebase with module_alias_printf
> 
> Changes in v3:
> - Removed mode from altmode device ids
> - Updated modalias for typecd bus to remove mode
> - Re-ordered to start of series
> 
> Changes in v2:
> - Update altmode_match to ignore mode entirely
> - Also apply the same behavior to typec_match
> 
>  drivers/usb/typec/altmodes/displayport.c | 2 +-
>  drivers/usb/typec/altmodes/nvidia.c      | 2 +-
>  drivers/usb/typec/bus.c                  | 6 ++----
>  drivers/usb/typec/class.c                | 4 ++--
>  scripts/mod/devicetable-offsets.c        | 1 -
>  scripts/mod/file2alias.c                 | 9 ++-------
>  6 files changed, 8 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
> index 2f03190a9873..3245e03d59e6 100644
> --- a/drivers/usb/typec/altmodes/displayport.c
> +++ b/drivers/usb/typec/altmodes/displayport.c
> @@ -791,7 +791,7 @@ void dp_altmode_remove(struct typec_altmode *alt)
>  EXPORT_SYMBOL_GPL(dp_altmode_remove);
>  
>  static const struct typec_device_id dp_typec_id[] = {
> -	{ USB_TYPEC_DP_SID, USB_TYPEC_DP_MODE },
> +	{ USB_TYPEC_DP_SID },
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(typec, dp_typec_id);
> diff --git a/drivers/usb/typec/altmodes/nvidia.c b/drivers/usb/typec/altmodes/nvidia.c
> index fe70b36f078f..2b77d931e494 100644
> --- a/drivers/usb/typec/altmodes/nvidia.c
> +++ b/drivers/usb/typec/altmodes/nvidia.c
> @@ -24,7 +24,7 @@ static void nvidia_altmode_remove(struct typec_altmode *alt)
>  }
>  
>  static const struct typec_device_id nvidia_typec_id[] = {
> -	{ USB_TYPEC_NVIDIA_VLINK_SID, TYPEC_ANY_MODE },
> +	{ USB_TYPEC_NVIDIA_VLINK_SID },
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(typec, nvidia_typec_id);
> diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c
> index aa879253d3b8..ae90688d23e4 100644
> --- a/drivers/usb/typec/bus.c
> +++ b/drivers/usb/typec/bus.c
> @@ -454,8 +454,7 @@ static int typec_match(struct device *dev, const struct device_driver *driver)
>  	const struct typec_device_id *id;
>  
>  	for (id = drv->id_table; id->svid; id++)
> -		if (id->svid == altmode->svid &&
> -		    (id->mode == TYPEC_ANY_MODE || id->mode == altmode->mode))
> +		if (id->svid == altmode->svid)
>  			return 1;
>  	return 0;
>  }
> @@ -470,8 +469,7 @@ static int typec_uevent(const struct device *dev, struct kobj_uevent_env *env)
>  	if (add_uevent_var(env, "MODE=%u", altmode->mode))
>  		return -ENOMEM;
>  
> -	return add_uevent_var(env, "MODALIAS=typec:id%04Xm%02X",
> -			      altmode->svid, altmode->mode);
> +	return add_uevent_var(env, "MODALIAS=typec:id%04X", altmode->svid);
>  }
>  
>  static int typec_altmode_create_links(struct altmode *alt)
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 4b3047e055a3..febe453b96be 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -237,13 +237,13 @@ static int altmode_match(struct device *dev, void *data)
>  	if (!is_typec_altmode(dev))
>  		return 0;
>  
> -	return ((adev->svid == id->svid) && (adev->mode == id->mode));
> +	return (adev->svid == id->svid);
>  }
>  
>  static void typec_altmode_set_partner(struct altmode *altmode)
>  {
>  	struct typec_altmode *adev = &altmode->adev;
> -	struct typec_device_id id = { adev->svid, adev->mode, };
> +	struct typec_device_id id = { adev->svid };
>  	struct typec_port *port = typec_altmode2port(adev);
>  	struct altmode *partner;
>  	struct device *dev;
> diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
> index 9c7b404defbd..d3d00e85edf7 100644
> --- a/scripts/mod/devicetable-offsets.c
> +++ b/scripts/mod/devicetable-offsets.c
> @@ -237,7 +237,6 @@ int main(void)
>  
>  	DEVID(typec_device_id);
>  	DEVID_FIELD(typec_device_id, svid);
> -	DEVID_FIELD(typec_device_id, mode);
>  
>  	DEVID(tee_client_device_id);
>  	DEVID_FIELD(tee_client_device_id, uuid);
> diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
> index 5b5745f00eb3..7049c31062c6 100644
> --- a/scripts/mod/file2alias.c
> +++ b/scripts/mod/file2alias.c
> @@ -1221,17 +1221,12 @@ static void do_tbsvc_entry(struct module *mod, void *symval)
>  	module_alias_printf(mod, true, "tbsvc:%s", alias);
>  }
>  
> -/* Looks like: typec:idNmN */
> +/* Looks like: typec:idN */
>  static void do_typec_entry(struct module *mod, void *symval)
>  {
> -	char alias[256] = {};
> -
>  	DEF_FIELD(symval, typec_device_id, svid);
> -	DEF_FIELD(symval, typec_device_id, mode);
> -
> -	ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
>  
> -	module_alias_printf(mod, false, "typec:id%04X%s", svid, alias);
> +	module_alias_printf(mod, false, "typec:id%04X", svid);
>  }
>  
>  /* Looks like: tee:uuid */
> -- 
> 2.47.1.613.gc27f4b7a9f-goog
> 
> 

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]

Re: [PATCH v5 1/8] usb: typec: Only use SVID for matching altmodes

[Benson Leung]

[-- Attachment #1: Type: text/plain, Size: 5432 bytes --]

On Fri, Dec 13, 2024 at 03:35:42PM -0800, Abhishek Pandit-Subedi wrote:
> Mode in struct typec_altmode is used to indicate the index of the
> altmode on a port, partner or plug. It is used in enter mode VDMs but
> doesn't make much sense for matching against altmode drivers or for
> matching partner to port altmodes.
> 
> Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>

Reviewed-by: Benson Leung <bleung@chromium.org>

> ---
> 
> Changes in v5:
> - Rebase with module_alias_printf
> 
> Changes in v3:
> - Removed mode from altmode device ids
> - Updated modalias for typecd bus to remove mode
> - Re-ordered to start of series
> 
> Changes in v2:
> - Update altmode_match to ignore mode entirely
> - Also apply the same behavior to typec_match
> 
>  drivers/usb/typec/altmodes/displayport.c | 2 +-
>  drivers/usb/typec/altmodes/nvidia.c      | 2 +-
>  drivers/usb/typec/bus.c                  | 6 ++----
>  drivers/usb/typec/class.c                | 4 ++--
>  scripts/mod/devicetable-offsets.c        | 1 -
>  scripts/mod/file2alias.c                 | 9 ++-------
>  6 files changed, 8 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
> index 2f03190a9873..3245e03d59e6 100644
> --- a/drivers/usb/typec/altmodes/displayport.c
> +++ b/drivers/usb/typec/altmodes/displayport.c
> @@ -791,7 +791,7 @@ void dp_altmode_remove(struct typec_altmode *alt)
>  EXPORT_SYMBOL_GPL(dp_altmode_remove);
>  
>  static const struct typec_device_id dp_typec_id[] = {
> -	{ USB_TYPEC_DP_SID, USB_TYPEC_DP_MODE },
> +	{ USB_TYPEC_DP_SID },
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(typec, dp_typec_id);
> diff --git a/drivers/usb/typec/altmodes/nvidia.c b/drivers/usb/typec/altmodes/nvidia.c
> index fe70b36f078f..2b77d931e494 100644
> --- a/drivers/usb/typec/altmodes/nvidia.c
> +++ b/drivers/usb/typec/altmodes/nvidia.c
> @@ -24,7 +24,7 @@ static void nvidia_altmode_remove(struct typec_altmode *alt)
>  }
>  
>  static const struct typec_device_id nvidia_typec_id[] = {
> -	{ USB_TYPEC_NVIDIA_VLINK_SID, TYPEC_ANY_MODE },
> +	{ USB_TYPEC_NVIDIA_VLINK_SID },
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(typec, nvidia_typec_id);
> diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c
> index aa879253d3b8..ae90688d23e4 100644
> --- a/drivers/usb/typec/bus.c
> +++ b/drivers/usb/typec/bus.c
> @@ -454,8 +454,7 @@ static int typec_match(struct device *dev, const struct device_driver *driver)
>  	const struct typec_device_id *id;
>  
>  	for (id = drv->id_table; id->svid; id++)
> -		if (id->svid == altmode->svid &&
> -		    (id->mode == TYPEC_ANY_MODE || id->mode == altmode->mode))
> +		if (id->svid == altmode->svid)
>  			return 1;
>  	return 0;
>  }
> @@ -470,8 +469,7 @@ static int typec_uevent(const struct device *dev, struct kobj_uevent_env *env)
>  	if (add_uevent_var(env, "MODE=%u", altmode->mode))
>  		return -ENOMEM;
>  
> -	return add_uevent_var(env, "MODALIAS=typec:id%04Xm%02X",
> -			      altmode->svid, altmode->mode);
> +	return add_uevent_var(env, "MODALIAS=typec:id%04X", altmode->svid);
>  }
>  
>  static int typec_altmode_create_links(struct altmode *alt)
> diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
> index 4b3047e055a3..febe453b96be 100644
> --- a/drivers/usb/typec/class.c
> +++ b/drivers/usb/typec/class.c
> @@ -237,13 +237,13 @@ static int altmode_match(struct device *dev, void *data)
>  	if (!is_typec_altmode(dev))
>  		return 0;
>  
> -	return ((adev->svid == id->svid) && (adev->mode == id->mode));
> +	return (adev->svid == id->svid);
>  }
>  
>  static void typec_altmode_set_partner(struct altmode *altmode)
>  {
>  	struct typec_altmode *adev = &altmode->adev;
> -	struct typec_device_id id = { adev->svid, adev->mode, };
> +	struct typec_device_id id = { adev->svid };
>  	struct typec_port *port = typec_altmode2port(adev);
>  	struct altmode *partner;
>  	struct device *dev;
> diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
> index 9c7b404defbd..d3d00e85edf7 100644
> --- a/scripts/mod/devicetable-offsets.c
> +++ b/scripts/mod/devicetable-offsets.c
> @@ -237,7 +237,6 @@ int main(void)
>  
>  	DEVID(typec_device_id);
>  	DEVID_FIELD(typec_device_id, svid);
> -	DEVID_FIELD(typec_device_id, mode);
>  
>  	DEVID(tee_client_device_id);
>  	DEVID_FIELD(tee_client_device_id, uuid);
> diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
> index 5b5745f00eb3..7049c31062c6 100644
> --- a/scripts/mod/file2alias.c
> +++ b/scripts/mod/file2alias.c
> @@ -1221,17 +1221,12 @@ static void do_tbsvc_entry(struct module *mod, void *symval)
>  	module_alias_printf(mod, true, "tbsvc:%s", alias);
>  }
>  
> -/* Looks like: typec:idNmN */
> +/* Looks like: typec:idN */
>  static void do_typec_entry(struct module *mod, void *symval)
>  {
> -	char alias[256] = {};
> -
>  	DEF_FIELD(symval, typec_device_id, svid);
> -	DEF_FIELD(symval, typec_device_id, mode);
> -
> -	ADD(alias, "m", mode != TYPEC_ANY_MODE, mode);
>  
> -	module_alias_printf(mod, false, "typec:id%04X%s", svid, alias);
> +	module_alias_printf(mod, false, "typec:id%04X", svid);
>  }
>  
>  /* Looks like: tee:uuid */
> -- 
> 2.47.1.613.gc27f4b7a9f-goog
> 
> 

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Re: [PATCH v5 0/8] Thunderbolt and DP altmode support for cros-ec-typec

[Tzung-Bi Shih]

On Fri, Dec 13, 2024 at 03:35:41PM -0800, Abhishek Pandit-Subedi wrote:
> Abhishek Pandit-Subedi (7):
>   usb: typec: Only use SVID for matching altmodes
>   usb: typec: Make active on port altmode writable
>   usb: typec: Print err when displayport fails to enter
>   platform/chrome: cros_ec_typec: Update partner altmode active
>   platform/chrome: cros_ec_typec: Displayport support
>   platform/chrome: cros_ec_typec: Thunderbolt support
>   platform/chrome: cros_ec_typec: Disable tbt on port
> 
> Heikki Krogerus (1):
>   usb: typec: Add driver for Thunderbolt 3 Alternate Mode

It looks no but just want to confirm: does the 4 cros_ec_typec patches
build-time depend on the typec patches?  I.e. can they merge through
different trees?