[PATCH v3 08/11] platform/chrome: cros_ec_typec: Store cable plug type

From: Prashant Malani
Date: Mon Nov 16 2020 - 15:14:03 EST


Use the PD VDO Type C cable plug type macro to retrieve and store the
cable plug type in the cable descriptor.

Cc: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Prashant Malani <pmalani@xxxxxxxxxxxx>
Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
---

Changes in v3:
- Re-arranged patch order and combined it with related series of
patches.
- Added Reviewed-by tags

Changes in v2:
- No changes.

drivers/platform/chrome/cros_ec_typec.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c
index 5e7f0b4ebbec..cf609aa10567 100644
--- a/drivers/platform/chrome/cros_ec_typec.c
+++ b/drivers/platform/chrome/cros_ec_typec.c
@@ -709,6 +709,7 @@ static int cros_typec_handle_sop_prime_disc(struct cros_typec_data *typec, int p
.port = port_num,
.partner_type = TYPEC_PARTNER_SOP_PRIME,
};
+ u32 cable_plug_type;
int ret = 0;

memset(disc, 0, EC_PROTO2_MAX_RESPONSE_SIZE);
@@ -722,8 +723,26 @@ static int cros_typec_handle_sop_prime_disc(struct cros_typec_data *typec, int p
/* Parse the PD identity data, even if only 0s were returned. */
cros_typec_parse_pd_identity(&port->c_identity, disc);

- if (disc->identity_count != 0)
+ if (disc->identity_count != 0) {
+ cable_plug_type = VDO_TYPEC_CABLE_TYPE(port->c_identity.vdo[0]);
+ switch (cable_plug_type) {
+ case CABLE_ATYPE:
+ desc.type = USB_PLUG_TYPE_A;
+ break;
+ case CABLE_BTYPE:
+ desc.type = USB_PLUG_TYPE_B;
+ break;
+ case CABLE_CTYPE:
+ desc.type = USB_PLUG_TYPE_C;
+ break;
+ case CABLE_CAPTIVE:
+ desc.type = USB_PLUG_CAPTIVE;
+ break;
+ default:
+ desc.type = USB_PLUG_NONE;
+ }
desc.active = PD_IDH_PTYPE(port->c_identity.id_header) == IDH_PTYPE_ACABLE;
+ }

desc.identity = &port->c_identity;

--
2.29.2.299.gdc1121823c-goog