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usb: typec: ucsi: Supply the USB capabilities to the ports

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The USB capabilities can be extracted from the response to
the Get Connector Capability command. USB2 and USB3 support
can be checked from the Operation Mode field, and USB4
support from the Extended Operation Mode field.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> # SM8450-HDK
Link: https://lore.kernel.org/r/20241016131834.898599-4-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Heikki Krogerus 2024-10-16 16:18:33 +03:00 committed by Greg Kroah-Hartman
parent 2140a952c4
commit ae70c804a1
2 changed files with 15 additions and 0 deletions
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7
drivers/usb/typec/ucsi/ucsi.c
View File

@ -1588,6 +1588,13 @@ static int ucsi_register_port(struct ucsi *ucsi, struct ucsi_connector *con)
if (con->cap.op_mode & UCSI_CONCAP_OPMODE_DEBUG_ACCESSORY)
*accessory = TYPEC_ACCESSORY_DEBUG;
if (UCSI_CONCAP_USB2_SUPPORT(con))
cap->usb_capability |= USB_CAPABILITY_USB2;
if (UCSI_CONCAP_USB3_SUPPORT(con))
cap->usb_capability |= USB_CAPABILITY_USB3;
if (UCSI_CONCAP_USB4_SUPPORT(con))
cap->usb_capability |= USB_CAPABILITY_USB4;
cap->driver_data = con;
cap->ops = &ucsi_ops;

8
drivers/usb/typec/ucsi/ucsi.h
View File

@ -287,6 +287,14 @@ struct ucsi_connector_capability {
UCSI_SPEC_REVISION_TO_BCD(UCSI_CONCAP_FLAG_PARTNER_PD_MAJOR_REV(_f_))
} __packed;
#define UCSI_CONCAP_USB2_SUPPORT(_con_) ((_con_)->cap.op_mode & UCSI_CONCAP_OPMODE_USB2)
#define UCSI_CONCAP_USB3_SUPPORT(_con_) ((_con_)->cap.op_mode & UCSI_CONCAP_OPMODE_USB3)
#define UCSI_CONCAP_USB4_SUPPORT(_con_) \
((_con_)->ucsi->version >= UCSI_VERSION_2_0 && \
((_con_)->cap.flags & (UCSI_CONCAP_EX_OP_MODE_USB4_GEN2 | \
UCSI_CONCAP_EX_OP_MODE_USB4_GEN3 | \
UCSI_CONCAP_EX_OP_MODE_USB4_GEN4)))
struct ucsi_altmode {
u16 svid;
u32 mid;