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| author | Michael5 Chen1 <michael5_chen1@pegatron.corp-partner.google.com> | 2021-04-22 16:27:13 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-05-10 06:25:43 +0000 |
| commit | ec5ee30c8fed2d46c07bb915c5e8ca2bdb9b9dcb (patch) | |
| tree | 5312886ad487bf4a3a33191b7e81c32181afed1e /driver | |
| parent | 89d35ca465a8053b26ac8158a992c6098fc37ac1 (diff) | |
| download | chrome-ec-ec5ee30c8fed2d46c07bb915c5e8ca2bdb9b9dcb.tar.gz | |
hayato: Modify HS Detector threshold of PS8743 setting value
Modify HS detector threshold setting (0x3C) to 0x60 for USB-C C1 port
signal quality.
BUG=b:177980418
BRANCH=asurada
TEST=manual
Run command "ectool i2cread 8 4 0x20 0x3c" to check register value.
Signed-off-by: Michael5 Chen1 <michael5_chen1@pegatron.corp-partner.google.com>
Change-Id: I97b6bb16e7c5298ff42e35d936e0f9e60ec3b730
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2845564
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/usb_mux/ps8743.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/driver/usb_mux/ps8743.h b/driver/usb_mux/ps8743.h index 70a47bdb9b..a520f970ac 100644 --- a/driver/usb_mux/ps8743.h +++ b/driver/usb_mux/ps8743.h @@ -75,6 +75,17 @@ #define PS8743_USB_EQ_RX_21_3_DB 0xd0 #define PS8743_USB_EQ_RX_22_2_DB 0xe0 +/* USB High Speed Signal Detector thershold adjustment */ +#define PS8743_REG_HS_DET_THRESHOLD 0x3c +#define PS8743_USB_HS_THRESH_DEFAULT 0x00 +#define PS8743_USB_HS_THRESH_POS_10 0x20 +#define PS8743_USB_HS_THRESH_POS_33 0x40 +#define PS8743_USB_HS_THRESH_NEG_10 0x60 +#define PS8743_USB_HS_THRESH_NEG_25 0x80 +#define PS8743_USB_HS_THRESH_POS_25 0xa0 +#define PS8743_USB_HS_THRESH_NEG_45 0xc0 +#define PS8743_USB_HS_THRESH_NEG_35 0xe0 + int ps8743_tune_usb_eq(const struct usb_mux *me, uint8_t tx, uint8_t rx); int ps8743_write(const struct usb_mux *me, uint8_t reg, uint8_t val); int ps8743_read(const struct usb_mux *me, uint8_t reg, int *val); |