diff options
Diffstat (limited to 'common/usb_pd_policy.c')
| -rw-r--r-- | common/usb_pd_policy.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/common/usb_pd_policy.c b/common/usb_pd_policy.c index fc1884e991..6e5f32c3d5 100644 --- a/common/usb_pd_policy.c +++ b/common/usb_pd_policy.c @@ -50,6 +50,9 @@ static int pd_find_pdo_index(int cnt, uint32_t *src_caps, int max_mv) { int i, uw, max_uw = 0, mv, ma; int ret = -1; +#ifdef PD_PREFER_LOW_VOLTAGE + int cur_mv; +#endif /* max_mv of -1 represents max limit */ if (max_mv == -1) @@ -71,10 +74,21 @@ static int pd_find_pdo_index(int cnt, uint32_t *src_caps, int max_mv) ma = (src_caps[i] & 0x3FF) * 10; uw = ma * mv; } +#ifdef PD_PREFER_LOW_VOLTAGE + if (mv > max_mv) + continue; + uw = MIN(uw, PD_MAX_POWER_MW * 1000); + if ((uw > max_uw) || ((uw == max_uw) && mv < cur_mv)) { + ret = i; + max_uw = uw; + cur_mv = mv; + } +#else if ((uw > max_uw) && (mv <= max_mv)) { ret = i; max_uw = uw; } +#endif } return ret; } |