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typec: tcpm: Add core support for sink side PPS

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This commit adds code to handle requesting of PPS APDOs. Switching
between standard PDOs and APDOs, and re-requesting an APDO to
modify operating voltage/current will be triggered by an
external call into TCPM.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Adam Thomson
2018-04-23 15:10:56 +01:00
committed by Greg Kroah-Hartman
parent 7eced58dbf
commit 2eadc33f40
3 changed files with 558 additions and 16 deletions
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4
include/linux/usb/pd.h
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@@ -103,8 +103,8 @@ enum pd_ext_msg_type {
(((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT) | \
((ext_hdr) ? PD_HEADER_EXT_HDR : 0))
#define PD_HEADER_LE(type, pwr, data, id, cnt) \
cpu_to_le16(PD_HEADER((type), (pwr), (data), PD_REV20, (id), (cnt), (0)))
#define PD_HEADER_LE(type, pwr, data, rev, id, cnt) \
cpu_to_le16(PD_HEADER((type), (pwr), (data), (rev), (id), (cnt), (0)))
static inline unsigned int pd_header_cnt(u16 header)
{