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usb: pd: Add captive Type C cable type

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The USB Power Delivery Specification R3.0 adds a captive cable type
to the "USB Type-C plug to USB Type-C/Captive" field (Bits 19-18,
Passive/Active Cable VDO, Table 6-38 & 6-39).

Add the corresponding definition to the Cable VDO header. Also add a
helper macro to get the Type C cable connector type, when provided
the cable VDO.

Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20201116201150.2919178-2-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Prashant Malani 2020-11-16 12:11:38 -08:00 committed by Greg Kroah-Hartman
parent b0eec52fbe
commit 8a5ca78f60
1 changed files with 3 additions and 1 deletions
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4
include/linux/usb/pd_vdo.h
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@ -177,7 +177,7 @@
* <31:28> :: Cable HW version
* <27:24> :: Cable FW version
* <23:20> :: Reserved, Shall be set to zero
* <19:18> :: type-C to Type-A/B/C (00b == A, 01 == B, 10 == C)
* <19:18> :: type-C to Type-A/B/C/Captive (00b == A, 01 == B, 10 == C, 11 == Captive)
* <17> :: Type-C to Plug/Receptacle (0b == plug, 1b == receptacle)
* <16:13> :: cable latency (0001 == <10ns(~1m length))
* <12:11> :: cable termination type (11b == both ends active VCONN req)
@ -193,6 +193,7 @@
#define CABLE_ATYPE 0
#define CABLE_BTYPE 1
#define CABLE_CTYPE 2
#define CABLE_CAPTIVE 3
#define CABLE_PLUG 0
#define CABLE_RECEPTACLE 1
#define CABLE_CURR_1A5 0
@ -208,6 +209,7 @@
| (tx1d) << 10 | (tx2d) << 9 | (rx1d) << 8 | (rx2d) << 7 \
| ((cur) & 0x3) << 5 | (vps) << 4 | (sopp) << 3 \
| ((usbss) & 0x7))
#define VDO_TYPEC_CABLE_TYPE(vdo) (((vdo) >> 18) & 0x3)
/*
* AMA VDO